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托福iBT课程浏览教材[精品] TOEFL阅读讲义 主讲:张洪伟 1. 句子简化 题 快递公司问题件快递公司问题件货款处理关于圆的周长面积重点题型关于解方程组的题及答案关于南海问题 The Great Red Spot One distinctive feature of the planet Jupiter is the Great Red Spot, a massive oval of swirling reddish-brown clouds. Were Earth to be juxtaposed with the Great Red Spot, our planet would be dwarfed in comparison, with a diameter less than half that of the Great Red Spot. The Spot’s clouds, most likely tinted red as a result of the phosphorus that they contain, circulate in a counterclockwise direction. The outer winds require six Earth days to complete the circumference of the Great Red Spot, a length of time indicative of vastness of the Great Red Spot. 1. Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. The density of the Great Red spot is much higher than that the Earth. B. If the diameter of the Great Red Spot were doubled, it would equal that of the Earth. C. By placing the Earth next to the Great Red Spot, one could see the Earth has a much smaller diameter. D. Because the Earth is close to the Great Red Spot, Earth is influenced by its huge size. 答案:C 2.Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. The Earth’s outer winds move a distance equal to the circumference of the Great Red Spot. B. The outer winds of the Great Red Spot move more quickly than do those on Earth. C. The Winds moving across the Great Red Spot finally change direction every six Earth days. D. The fact that the winds take so long to move around the Great Red Spot proves how big it is. 答案:D Passage One (Question 1-2) Camouflage Camouflage is one of the most effective ways for animals to avoid attack in the treeless Arctic. However, the summer and winter landscapes there are so diverse that a single protective coloring scheme would, of course, prove ineffective in one season or the other. Thus, many of the inhabitants of the Arctic tundra change their camouflage twice a year. The arctic fox is a clear-cut example of this phenomenon; it sports a brownish-gray coat in the summer which then turns white as cold weather sets in, and the process reverses itself in the springtime. Its brownish-gray coat blends in with the barren tundra landscape in the months without snow, and the white coat naturally blends in with the landscape of the frozen wintertime tundra. 1. Which of the sentences below expresses the essential information in the first highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. Opposite conditions in summer and in winter necessitate different protective coloration for Arctic animals. B. The coloration of the summer and winter landscapes in the Arctic fails to protect the Arctic tundra. C. In a single season, protective coloring scheme are ineffective in the treeless Arctic. D. For many animals, a single protective coloring scheme effectively protects them during summer and winter months. 答案:A 2. Which of the sentences below expresses the essential information in the second highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. The arctic fox is unusual in that he color of its coat changes for no reason. B. The arctic fox lives in an environment that is brownish gray in the summer and white in the winter. C. It is a phenomenon that the coat of the arctic fox turns white I the springtime and gray in the fall. D. The arctic fox demonstrates that protective coloration can change during different seasons. 答案:D Passage Two (Question 3-6) Post-it Notes Post-it Notes were invented in the 1970s at the 3M company in Minnesota quite by accident, Researchers at 3M were working on developing different types of adhesives, and one particularly weak adhesive, a compound of acrylate copolymer microspheres, was developed. Employees at 3M were asked if they could think of a use for a weak adhesive which, provided it did not get dirty, could be reused. One suggestion was that it could be applied to a piece of paper to use as a bookmark that would stay in place in a book. Another use was found when the product was attached to a report that was to be sent to a colleague with a request for comments on the report; the colleague made his comments on the paper attached to the report and returned the report. The idea for Post-it Notes was born. It was decided within the company that there would be a test launch of product in 1977 in four American cities. Sales of this innovative product in test cities were less than stellar, most likely because the product, while innovative, was also quite unfamiliar. A final attempt was then made in the city of Boise to introduce the product. In that attempt, 3M salesmen gave demonstrations of the product in offices throughout Boise and gave away free samples of the produce. When the salesmen returned a week later to the office workers, having noted how useful the simple little product could be, were interested in purchasing it. Over time, 3M came to understand the huge potential of this new product, and over the next few decades more than 400 varieties of Post-it products - in different colors, shapes, and sizes – have been developed. 3. Which of the sentences below expresses the essential information in the first highlighted sentence in the passage 1? Incorrect choices change the meaning in important ways or leave out essential information. A. Of the many adhesives that were being developed at 3M, one was not a particularly strong adhesive. B. Researchers at 3M spent many years trying to develop a really weak adhesive. C. Numerous weak adhesives resulted from a program to develop the strongest adhesive of all. D. Researchers were assigned to develop different types of uses for acrylate copolymer microspheres. 答案:A 4. Which of the sentences below expresses the essential information in the second highlighted sentence in the passage 1? Incorrect choices change the meaning in important ways or leave out essential information. A. The 3M company suggested applying for a patent on the product in a report prepared by a colleague. B. One unexpectedly-discovered use for the adhesive was in sending and receiving notes attached to documents. C. A note was attached to a report asking for suggestion for uses of one of 3M’s products. D. A colleague who developed the new product kept notes with suggestions by other workers. 答案:B 5. Which of the sentences below expresses the essential information in the first highlighted sentence in the passage 2? Incorrect choices change the meaning in important ways or leave out essential information. A. The 3M company was unfamiliar with the process of using test cities to introduce innovative products. B. Sales of the product soared even though the product was quite unfamiliar to most customers. C. The new product did not sell well because potential customers did not understand it. D. After selling the product for a while, the company understood that the product was not innovative enough. 答案:C 6. Which of the sentences below expresses the essential information in the second highlighted sentence in the passage 2? Incorrect choices change the meaning in important ways or leave out essential information. A. The company immediately understood the potential of the product and began to develop it further. B. The company worked overtime to develop its new product, initially creating numerous varieties to make it successful. C. The company initially introduced 400 varieties of the product and then watched for decades as sales improved. D. It took some time for the company to understand how important its new product was and how many variation were possible. 答案:D 2. 排除列举题 The geology of the Earth's surface is dominated by the particular properties of water. Present on Earth in solid, liquid, and gaseous states, water is exceptionally reactive. It dissolves, transports, and precipitates many chemical compounds and is constantly Line modifying the face of the Earth. (5) Evaporated from the oceans, water vapor forms clouds, some of which are transported by wind over the continents. Condensation from the clouds provides the essential agent of continental erosion: rain. Precipitated onto the ground, the water trickles down to form brooks, streams, and rivers, constituting what are called the hydrographic network. This immense polarized network channels the water toward a single recepatcle: an ocean. (10) Gravity dominates this entire step in the cycle because water tends to minimize its potential energy by running from high altitudes toward the reference point, that is, sea level. The rate at which a molecule of water passes through the cycle is not random but is a measure of the relative size of the various reservoirs. If we define residence time as the (15) average time for a water molecule to pass throught one of the three reservoirs— atmosphere, continent, and ocean—we see that the times are very different. A water molecule stays, on average, eleven days in the atmosphere, one hundred years on a continent and forty thousand years in the ocean. This last figure shows the importance of the ocean as the principal reservoir of the hydrosphere but also the rapidity of water (20) transport on the continents. A vast chemical separation process takes places during the flow of water over the continents. Soluble ions such as calcium, sodium, potassium, and some magnesium are dissolved and transported. Insoluble ions such as aluminum, iron, and silicon stay where they are and form the thin, fertile skin of soil on which vegetation can grow. Sometimes (25) soils are destroyed and transported mechanically during flooding. The erosion of the continents thus results from two closely linked and interdependent processes, chemical erosion and mechanical erosion. Their respective interactions and efficiency depend on different factors. 8. All of the following are example of soluble ions EXCEPT (A) magnesium (B) iron (C) potassium (D) calcium 答案:B The canopy, the upper level of the trees in the rain forest, holds a plethora of climbing mammals of moderately large size, which may include monkeys, cats, civets, and porcupines. Smaller species, including such rodents as mice and small squirrels, are not Line as prevalent overall in high tropical canopies as they are in most habitats globally. (5) Small mammals, being warm blooded, suffer hardship in the exposed and turbulent environment of the uppermost trees. Because a small body has more surface area per unit of weight than a large one of similar shape, it gains or loses heat more swiftly. Thus, in the trees, where shelter from heat and cold may be scarce and conditions may fluctuate, a small mammal may have trouble maintaining its body temperature. (10) Small size makes it easy to scramble among twigs and branches in the canopy for insects, flowers, or fruit, but small mammals are surpassed, in the competition for food, by large ones that have their own tactics for browsing among food-rich twigs. The weight of a gibbon (a small ape) hanging below a branch arches the terminal leaves down so that fruit-bearing foliage drops toward the gibbon's face. Walking or (15) leaping species of a similar or even larger size access the outer twigs either by snapping off and retrieving the whole branch or by clutching stiff branches with the feet or tail and plucking food with their hands. Small climbing animals may reach twigs readily, but it is harder for them than for large climbing animals to cross the wide gaps from on tree crown to the next that (20) typify the high canopy. A macaque or gibbon can hurl itself farther than a mouse can: it can achieve a running start, and it can more effectively use a branch as a springboard, even bouncing on a limb several times before jumping. The forward movement of a small animal is seriously reduced by the air friction against the relatively large surface area of its body. Finally, for the many small mammals that supplement their insect (25) diet with fruits or seeds, an inability to span open gaps between tree crowns may be problematic, since trees that yield these foods can be sparse. 2. Which of the following animals is less common in the upper canopy than in other environments? (A) Monkeys (B) Cats (C) Porcupines (D) Mice 答案:D During the seventeenth and eighteenth centuries, almost nothing was written about the contributions of women during the colonial period and the early history of the newly formed United States. Lacking the right to vote and absent from the seats of power, Line women were not considered an important force in history. Anne Bradstreet wrote some (5) significant poetry in the seventeenth century, Mercy Otis Warren produced the best contemporary history of the American Revolution, and Abigail Adams penned important letters showing she exercised great political influence over her husband, John, the second President of the United States. But little or no notice was taken of these contributions. During these centuries, women remained invisible in history books. (10) Throughout the nineteenth century, this lack of visibility continued, despite the efforts of female authors writing about women. These writers, like most of their male counterparts, were amateur historians. Their writings were celebratory in nature, and they were uncritical in their selection and use of sources. During the nineteenth century, however, certain feminists showed a keen sense of (15) history by keeping records of activities in which women were engaged. National, regional, and local women's organizations compiled accounts of their doings. Personal correspondence, newspaper clippings, and souvenirs were saved and stored. These sources form the core of the two greatest collections of women's history in the United States; one at the Elizabeth and Arthur Schlesinger Library at Radcliffe College, and the other the (20) Sophia Smith Collection at Smith College. Such sources have provided valuable materials for later generations of historians. Despite the gathering of more information about ordinary women during the nineteenth century, most of the writing about women conformed to the "great women" theory of history, just as much of mainstream American history concentrated on "great (25) men." To demonstrate that women were making significant contributions to American life, female authors singled out women leaders and wrote biographies. or else important women produced their autobiographies. Most of these leaders were involved in public life as reformers, activists working for women's right to vote, or authors, and were not representative at all of the great of ordinary woman. The lives of ordinary people (30) continued, generally, to be untold in the American histories being published. 9. In the last paragraph, the author mentions all of the following as possible roles of nineteenth-century "great women" EXCEPT (A) authors (B) reformers (C) activists for women's rights (D) politicians 答案:D Potash (the old name for potassium carbonate) is one of the two alkalis (the other being soda, sodium carbonate) that were used from remote antiquity in the making of glass, and from the early Middle Ages in the making of soap: the former being the Line product of heating a mixture of alkali and sand, the latter a product of alkali and (5) vegetable oil. Their importance in the communities of colonial North America need hardly be stressed. Potash and soda are not interchangeable for all purposes, but for glass-or soap- making either would do. Soda was obtained largely from the ashes of certain Mediterranean sea plants, potash from those of inland vegetation. Hence potash was (10) more familiar to the early European settlers of the North American continent. The settlement at Jamestown in Virginia was in many ways a microcosm of the economy of colonial North America, and potash was one of its first concerns. It was required for the glassworks, the first factory in the British colonies, and was produced in sufficient quantity to permit the inclusion of potash in the first cargo shipped out of (15) Jamestown. The second ship to arrive in the settlement from England included among its passengers experts in potash making. The method of making potash was simple enough. Logs were piled up and burned in the open, and the ashes collected. The ashes were placed in a barrel with holes in the bottom, and water was poured over them. The solution draining from the barrel was (20) boiled down in iron kettles. The resulting mass was further heated to fuse the mass into what was called potash. In North America, potash making quickly became an adjunct to the clearing of land for agriculture, for it was estimated that as much as half the cost of clearing land could be recovered by the sale of potash. Some potash was exported from Maine and New (25) Hampshire in the seventeenth century, but the market turned out to be mainly domestic, consisting mostly of shipments from the northern to the southern colonies. For despite the beginning of the trade at Jamestown and such encouragements as a series of acts "to encourage the making of potash," beginning in 1707 in South Carolina, the softwoods in the South proved to be poor sources of the substance. 1. What aspect of potash does the passage mainly discuss? (A) How it was made (B) Its value as a product for export (C) How it differs from other alkalis (D) Its importance in colonial North America 答案:C 2. All of the following statements are true of both potash and soda EXPECT: (A) They are alkalis. (B) They are made from sea plants. (C) They are used in making soap. (D) They are used in making glass. 答案:B 7. According to paragraph 4, all of following were needed for making potash EXCEPT (A) wood (B) fire (C) sand (D) water 答案:C Pennsylvania's colonial ironmasters forged iron and a revolution that had both industrial and political implications. The colonists in North America wanted the right to the profits gained from their manufacturing. However, England wanted all of the Line colonies' rich ores and raw materials to feed its own factories, and also wanted the (5) colonies to be a market for its finished goods. England passed legislation in 1750 to prohibit colonists from making finished iron products, but by 1771, when entrepreneur Mark Bird established the Hopewell blast furnace in Pennsylvania, iron making had become the backbone of American industry. It also had become one of the major issues that fomented the revolutionary break between England and the British colonies. By the (10) time the War of Independence broke out in 1776, Bird, angered and determined, was manufacturing cannons and shot at Hopewell to be used by the Continental Army. After the war, Hopewell, along with hundreds of other "iron plantations," continued to form the new nation's industrial foundation well into the nineteenth century. The rural landscape became dotted with tall stone pyramids that breathed flames and smoke, (15) charcola-fueled iron furnaces that produced the versatile metal so crucial to the nation's growth. Generations of ironmasters, craftspeople, and workers produced goods during war and peace—ranging from cannons and shot to domestic items such as cast-iron stoves, pots, and sash weights for windows. The region around Hopewell had everything needed for iron production: a wealth of (20) iron ore near the surface, limestone for removing impurities from the iron, hardwood forests to supply the charcoal used for fuel, rushing water to power the bellows that pumped blasts of air into the furnace fires, and workers to supply the labor. By the 1830's, Hopewell had developed a reputation for producing high quality cast-iron stoves, for which there was a steady market. As Pennsylvania added more links to its (25) transportation system of roads, canals, and railroads, it became easier to ship parts made by Hopewell workers to sites all over the east coast. There they ware assembled into stoves and sold from Rhode Island to Maryland as the "Hopewell stove". By the time the last fires burned out at Hopewell ironworks in 1883, the community had produced some 80,000 cast-iron stoves. 5. Pennsylvania was an ideal location for the Hopewell ironworks for all of the following reasons EXCEPT (A) Many workers were available in the area (B) The center of operations of the army was nearby (C) The metal ore was easy to acquire (D) There was an abundance of wood 答案:B Under the Earth's topsoil, at various levels, sometimes under a layer of rock, there are deposits of clay. Look at cuts where highways have been built to see exposed clay beds; or look at a construction site, where pockets of clay may be exposed. Rivers also reveal Line clay along their banks, and erosion on a hillside may make clay easily accessible. (5) What is clay made of? The Earth's surface is basically rock, and it is this rock that gradually decomposes into clay. Rain, streams, alternating freezing and thawing, roots of trees and plants forcing their way into cracks, earthquakes, volcanic action, and glaciers —all of these forces slowly break down the Earth's exposed rocky crust into smaller and smaller pieces that eventually become clay. (10) Rocks are composed of elements and compounds of elements. Feldspar, which is the most abundant mineral on the Earth's surface, is basically made up of the oxides silica and alumina combined with alkalis like potassium and some so-called impurities such as iron. Feldspar is an essential component of granite rocks, and as such it is the basis of clay. When it is wet, clay can be easily shaped to make a variety of useful (15) objects, which can then be fired to varying degrees of hardness and covered with impermeable decorative coatings of glasslike material called glaze. Just as volcanic action, with its intense heat, fuses the elements in certain rocks into a glasslike rock called obsidian, so can we apply heat to earthen materials and change them into a hard, dense material. Different clays need different heat levels to fuse, and some, the low-fire (20) clays, never become nonporous and watertight like highly fired stoneware. Each clay can stand only a certain amount of heat without losing its shape through sagging or melting. Variations of clay composition and the temperatures at which they are fired account for the differences in texture and appearance between a china teacup and an earthenware flowerpot. 2. It can be inferred from the passage that clay is LEAST likely to be plentiful in which of the following areas? (A) in desert sand dunes (B) in forests (C) on hillsides (D) near rivers 答案:A In July of 1994, an astounding series of events took place. The world anxiously watched as, every few hours, a hurtling chunk of comet plunged into the atmosphere of Jupiter. All of the twenty-odd fragments, collectively called comet Shoemaker-Levy 9 Line after its discoverers, were once part of the same object, now dismembered and strung out (5) along the same orbit. This cometary train, glistening like a string of pearls, had been first glimpsed only a few months before its fateful impact with Jupiter, and rather quickly scientists had predicted that the fragments were on a collision course with the giant planet. The impact caused an explosion clearly visible from Earth, a bright flaming fire that quickly expanded as each icy mass incinerated itself. When each fragment slammed (10) at 60 kilometers per second into the dense atmosphere, its immense kinetic energy was transformed into heat, producing a superheated fireball that was ejected back through the tunnel the fragment had made a few seconds earlier. The residues form these explo- sions left huge black marks on the face of Jupiter, some of which have stretched out to from dark ribbons. (15) Although this impact event was of considerable scientific importance, it especially piqued public curiosity and interest. Photographs of each collision made the evening television newscast and were posted on the Internet. This was possibly the most open scientific endeavor in history. The face of the largest planet in the solar system was changed before our very eyes. And for the very first time, most of humanity came to fully appreciate the (20) fact that we ourselves live on a similar target, a world subject to catstrophe by random assaults from celestial bodies. That realization was a surprise to many, but it should not have been. One of the great truths revealed by the last few decades of planetary explo- ration is that collisions between bodies of all sizes are relatively commonplace, at least in geologic terms, and were even more frequent in the early solar system. 3. The author compares the fragments of comet Shoemaker-Levy 9 to all of the following EXCEPT (A) a dismembered body (B) a train (C) a pearl necklace (D) a giant planet 答案:D By far the most important United States export product in the eighteenth and nineteenth centuries was cotton, favored by the European textile industry over flax or wool because it was easy to process and soft to tile touch. Mechanization of spinning and Line weaving allowed significant centralization and expansion in the textile industry during (5) this period, and at the same time the demand for cotton increased dramatically. American producers were able to meet this demand largely because of tile invention of the cotton gin by Eli Whitney in 1793. Cotton could be grown throughout the South, but separating the fiber—or lint—from the seed was a laborious process. Sea island cotton was relatively easy to process by hand, because its fibers were long and seeds were (10) concentrated at the base of the flower, but it demanded a long growing season, available only along the nation's eastern seacoast. Short-staple cotton required a much shorter growing season, but the shortness of the fibers and their mixture with seeds meant that a worker could hand-process only about one pound per day. Whitney's gin was a hand- powered machine with revolving drums and metal teeth to pull cotton fibers away from (15) seeds. Using the gin, a worker could produce up to 50 pounds of lint a day. The later development of larger gins, powered by horses, water, or steam, multiplied productivity further. The interaction of improved processing and high demand led to the rapid spread of the cultivation of cotton and to a surge in production. It became the main American (20) export, dwarfing all others. In 1802, cotton composed 14 percent of total American exports by value. Cotton had a 36 percent share by 1810 and over a 50 percent share in 1830. In 1860, 61 percent of the value of American exports was represented by cotton. In contrast, wheat and wheat flour composed only 6 percent of the value of American exports in that year. Clearly, cotton was king in the trade of the young republic. The (25) growing market for cotton and other American agricultural products led to an unprecedented expansion of agricultural settlement, mostly in the eastern half of the United States—west of the Appalachian Mountains and east of the Mississippi River. 3. All of the following are mentioned in the passage as reasons for the increased demand for cotton EXCEPT (A) cotton's softness (B) cotton's ease of processing (C) a shortage of flax and wool (D) the growth that occurred in the textile industry. 答案:C Flatfish Members of the flatfish family, sand dabs and flounders, have an evolutionary advantage over many colorfully decorated ocean neighbors in that they are able to adapt their body coloration to different environments. These aquatic chameleons have flattened bodies that are well-suited to life along the ocean floor in the shallower areas of the continental shelf that they inhabit. They also have remarkably sensitive color vision that registers the subtlest gradations on the sea bottom and in the sea life around them. Information about the coloration of the environment is carried through the nervous system to chromatophores, which are pigment-carrying skin cells. These chromatophores are able to accurately reproduce not only the colors but also the texture of the ocean floor. Each time that a sand dab or flounder finds itself in a new environment, the pattern on the body of the fish adapts to fit in with the color and texture around it. 1. It is NOT stated in the passage that sand dabs A are a type of flatfish B are in the same family as flounders C have evolved D are colorfully decorated 2. According to the passages, it is NOT true that sand dabs and flounders A have flattened bodies B live along the ocean floor C live in the deepest part of the ocean D live along the continental shelf 3. All of the following are stated about the vision of sand dabs and flounders EXCEPT that they are A overly sensitive to light B able to see colors C able to see the sea bottom D aware of their surroundings 4. It is NOT true that chromatophores A are skin cells B carry pigment C adapt to surrounding colors D change the ocean floor 5. It is NOT mentioned in the passage that sand dabs and flounders A move to new environments B adapt their behavior C can change color D adapt to textures around them 参考答案:DCADB paragraph Wrigley's Chewing Gum 1 Wrigley's chewing gum was actually developed as a premium to be given away with other products rather than as a primary product for sale. As a teenager, William Wrigley Jr. was working for his father in Chicago selling soap that had been manufactured in his cents, and this selling price did not leave a good profit margin for the merchants. Wrigley convinced his father to raise the price to ten cents and to give away cheap umbrellas as a premium for the merchants. This worked successfully, confirming to Wrigley that the use of premiums was an effective sales tool. 2 Wrigley then established his own company; in his company he was selling soap as a wholesaler, giving baking soda away as a premium, and using a cookbook to promote each deal. Over time, the baking soda and cookbook became more popular than the soap, so Wrigley began a new operation selling baking soda. He began hunting for a new premium item to give away with sales of baking soda; he soon decided on chewing gum. Once again, when Wrigley realized that demand for the premium was stronger than the demand for the original product, he created the Wm. Wrigley Jr. Company to produce and sell chewing gum. 3 Wrigley started out with two brands of gum, Vassar and Lotta Gum, and soon introduced Juicy Fruit and Spearment. The latter two brands grew in popularity, while the first two were phased out. Juicy Fruit and Spearment are two of Wrigley's main brands to this day. 11. It is NOT indicated in paragraph 1 that young William was working A in Chicago B for his father C as a soap salesman D in his father's factory 12. According to paragraph 1, it is NOT true that the soap that young Wrigley was selling A was originally well-liked B was originally priced at five cents C originally provided little profit for merchants D eventually became more popular with merchants 13. According to paragraph 2, it is NOT true that, when Wrigley first founded his own company, he was A selling soap B selling chewing gum C giving away cookbooks D using baking soda as a premium 14. It is NOT mentioned in paragraph 2 that Wrigley later A sold baking soda B used chewing gun as a premium to sell baking soda C sold chewing gum D used baking soda as a premium to sell chewing gum 15. According to paragraph 3, the Wm. Wrigley Jr. Company did all of the following EXCEPT A begin with two brands of gum B add new brands to the original two C phase out the last two brands D phase out the first two brands 参考答案:DABDC 3. 句子插入题 Paragraph Popcorn 1 One method of popping corn involved skewering an ear of corn on a stick and roasting it until the kernels popped off the ear. Corn was also popped by first cutting the kernels off the cob, throwing them into a fire, and gathering them as they popped out of the fire. In a final method for popping corn, sand and unpopped kernels of corn were mixed together in a cooking pot and heated until the corn popped to the surface of the sand in the pot. 2 This traditional Native American dish was quite a novelty to newcomers to the Americas. Columbus and his sailors found natives in the West Indies wearing popcorn necklaces, and explorer Hernando Cortés described the use of popcorn amulets in the religious ceremonies of the Aztecs. According to legendary descriptions of the celebratory meal, Quadequina, the brother of Chief Massasoit, contributed several deerskin bags of popcorn to the celebration. 1. Look at the four squares,?,that indicate where the following sentence can be added to the first paragraph of the passage. Native Americans have been popping corn for at least 5,000 years, using a variety of different methods. Click on a square,?,to add the sentence to the passage. 答案:1A 2. Look at the four squares,?,that indicate where the following sentence can be added to the second paragraph of the passage. A century after these early explorers, the Pilgrims at Plymouth may have been introduced to popcorn at the first Thanksgiving dinner. Click on a square,?,to add the sentence to the passage. 答案:2C Paragraph Lions 1 Something unusual about lions is that they hunt in groups. Group hunting is beneficial to lions because it means that much larger prey can be captured by the lions. It also means that individual lions expend much less energy during a hunt. 2 There is a standard pattern to the process of hunting in groups. The process is initiated by a single female, who stations herself at a raised elevation to serve as a lookout to spot potential prey. When prey is spotted, a group of young lionesses advances on the herd and pushes the herd in the direction of a different lioness who has hidden herself downwind. It is up to this concealed female to choose the weakest member of the herd for the kill. 3 As can be seen from this description of the process, it is the females rather than the male or males in the pride that take part in the kill. The younger and stronger females are the ones who go on the attack. While the females are on the attack, the males stay behind to protect the rest of the pride from attack by predators such as hyenas. 3. Look at the four squares,?,that indicate where the following sentence can be added to the first paragraph of the passage. Other cats do not. Click on a square,?,to add the sentence to the passage. 答案:3B 4. Look at the four squares,?,that indicate where the following sentence can be added to the second paragraph of the passage. This is usually accomplished by knocking the prey to the ground and breaking its neck. Click on a square,?,to add the sentence to the passage. 答案:4D 5. Look at the four squares,?,that indicate where the following sentence can be added to the third paragraph of the passage. Thus, the males have a defensive rather than an offensive role. Click on a square,?,to add the sentence to the passage. 答案:5D Paragraph Accidental Inventions 1 A number of products that we commonly use today were developed quite by accident. Two of many possible examples of this concept are the leotard and the Popsicle, each of which came about when an insightful person recognized a potential benefit in a negative situation. 2 The first of these accidental inventions is the leotard, a close-fitting, one-piece garment worn today by dancers, gymnasts, and acrobats, among others. In 1828, a circus performer named Nelson Hower was faced with the prospect of missing his performance because his costume was at the cleaners. Instead of canceling his part of the show, he decided to perform in his long underwear. Soon, other circus performers began performing the same way. When popular acrobat Jules Leotard adopted the style, it became known as the leotard. 3 Another product invented by chance was the Popsicle. In 1905, eleven-year-old Frank Epperson stirred up a drink of fruit-flavored powder and soda water and then mistakenly left the drink, with the spoon in it, out on the back porch overnight. As the temperature dropped that night, the soda water froze around the spoon, creating a tasty treat. Years later, remembering how enjoyable the treat had been, Epperson went into Business producing Popsicles. 6. Look at the four squares [?] that indicate where the following sentence can be added to the second paragraph of the passage. They enjoyed the comfort of performing in underwear rather than costumes. Click on a square [?] to add the sentence to the passage. 答案:6D 7. Look at the four squares [?] that indicate where the following sentence can be added to the third paragraph of the passage. It was a taste sensation that stayed on his mind. Click on a square [?] to add the sentence to the passage. 答案:7D 4. 词汇题 1、The word "accordingly" in line 23 is closest in meaning to (A) however (B) consequently (C)nevertheless (D)ultimately 2、The word "administered" in line 8 is closest in meaning to (A) managed (B) recognized (C) opposed (D) justified (原文)The National Marine Sanctuaries Program is administered by the National Oceanic and Atmospheric Administration, a branch of the United States Department of Commerce. 3.1、The word "surge" in line 9 is closest in meaning to (A) sharp increase (B) sudden stop (C) important change (D) excess amount (原文)The interaction of improve processing and high demand led to the rapid spread of the cultivation of cotton and to a surge in production. 3.2、The word "meticulously" in line 7 is closest in meaning to (A) heavily (B) initially (C) carefully (D) completely (原文)The clay used in prehistoric pot making was invariably selected with the utmost care. Often it was traded over considerable distances. The consistency of the clay was crucial; it was pounded meticulously and mixed with water to make it entirely even in texture. By careful kneading, the potter removed the air bubbles and made the clay as plastic as possible. 4.1.The word "laborious" in line 8 is closest in meaning to (A) unfamiliar (B) primitive (C) skilled (D) difficult (原文)Cotton could be grown throughout the South, but separating the fiber---or lint--from the seed was a laborious process. 4.2.The word "pits" in line 7 is closest in meaning to (A) stages (B) scars (C) seeds (D) holes (原文)The Anasazi lived in houses constructed of adobe and wood. Anasazi houses were originally built in pits and were entered from the roof. But around the year 700 A.D., the Anasazi began to build their homes above ground and join them together into rambling multistoried complexes, which the Spanish called pueblos or villages. 5.1.The phrase "forward-looking" in line 4 is closest in meaning to (A) progressive (B) popular (C) thrifty (D) well-established (原文)Ice was used in hotels, taverns, and hospitals, and by some forward-looking city dealers in fresh meat, fresh fish, and butter. 5.2.The phrase "hinged on" in line 9 is closest in meaning to (A) recovered from (B) depended on (C) started on (D) contributed to 解析:(原文)Industrial growth hinged on several economic factors. 5.3.The phrase "regardless of" in line 3 is closest in meaning to (A) as a result of (B) no matter what (C) proud of (D) according to 6.1.The word "unprecedented" in line 26 is closest in meaning to (A) slow (B) profitable (C) not seen before (D) never explained 6.2.The word "rudimentary" inline 12 is closest in meaning to (A) growing (B) undeveloped (C) necessary (D) uninteresting 7.1.The word ―periphery‖ in line 24 is closest in meaning to (A) depth (B) landmass (C) warm habitat (D) outer edge (原文) Outside the United States, marine protected-area programs exist as marine parks, reserves, and preserves. Over 100 designated areas exist around the periphery of the Caribbean Sea. 7.2.The word "boosted" in line 3 is closest in meaning to (A) ensured (B) raised (C) arranged (D) discouraged (原文)Industrialization came to the United State after 1790 as North American entrepreneurs increased productivity by reorganizing work and building factories. These innovations in manufacturing boosted output and living standards to an unprecedented extent; the average per capita wealth increased by nearly 1 percent per year—30 percent over the course of a generation. 7.3.The word "emitting" in line 9 is closest in meaning to (A) bringing (B) attracting (C) producing (D) minimizing (原文) One technique involves first moving quietly toward an approaching animal and then setting off noisily through the grass or brush in a low, crouching run away from the nest, while emitting rodent like squeaks. 8.The word "engaged" in line 2 is closest in meaning to (A) trained (B) hired (C) described (D) evaluated (原文)In 1903 the members of the governing board of the University of Washington. In Seattle. engaged a firm of landscape architects, specialists in the design of outdoor environments--Olmsted Brothers of Brookline, Massachusetts-to advise them on an Line appropriate layout for the university grounds. Smog 1 The oxidation of exhaust gases is one of the primary sources of the world's pollution. The brown haze that is poised over some of the world's largest cities is properly called photochemical smog; it results from chemical reactions that take place in the air, using the energy of sunlight. The production of smog begins when gases are created in the cylinders of vehicle engines. It is there that oxygen and nitrogen gas combine as the fuel burns to form nitric oxide (NO), a colorless gas. The nitric oxide is forced out into the air through the vehicle tailpipe along with other gases. 2 When the gas reaches the air, it comes into contact with available oxygen from the atmosphere and combines with the oxygen to produce nitrogen dioxide (NO), which is a gas with 2 a brownish hue. This nitrogen dioxide plays a role in the formation of acid rain in wetter or more humid climates and tends to decompose back into nitric oxide as it releases an oxygen atom from each molecule; the released oxygen atoms quickly combine with oxygen (O) molecules to form 2 ozone (O). The brownish colored nitrogen dioxide is partially responsible for the brown color in 3 smoggy air; the ozone is the toxic substance that causes irritation to eyes. 1. The word poised in paragraph 1 is closest in meaning to (A) interacting (B) sitting (C) blowing (D) poisoning 2. The phrase take place in paragraph 1 is closest in meaning to (A) position themselves (B) put (C) are seated (D) occur 3. The word forced in paragraph 1 could best be replaced by (A) obliged (B) required (C) pushed (D) commanded 4. The word hue in paragraph 2 is closest in meaning to (A) color (B) odor (C) thickness (D) smoke 5. The phrase plays a role in in paragraph 2 is closest in meaning to (A) makes fun of (B) serves a function in (C) acts the part of (D) moves about in 参考答案:BDCAB Parasitic plants 1 Parasitic plants are plants that survive by using food produced by host plants rather than by producing their own food from the Sun's energy. Because they do not need sunlight to survive, parasitic plants are generally found in umbrageous areas rather than in areas exposed to direct sunlight. Parasitic plants attach themselves to host plants, often to the stems or roots, by means of haustoria, which the parasite uses to make its way into the food channels of the host plant and absorb the nutrients that it needs to survive from the host plant. 2 The world's heaviest flower, a species of rafflesia, is a parasite that flourishes among, and lives off of, the roots of jungle vines. Each of these ponderous blooms can weigh up to 15 pounds (7 kg) and can measure up to 3 feet (1m) across. 11. The word umbrageous in paragraph 1 is closest in meaning to (A) moist (B) well lit (C) shaded (D) buried 12. Haustoria in paragraph 1 are most likely (A) offshoots from the parasite (B) seeds of the host plant (C) fruits from the host plant (D) food for the parasite 13. The phrase make its way into in paragraph 1 is closest in meaning to (A) develop (B) penetrate (C) outline (D) eat 14. The word ponderous in paragraph 2 is closest in meaning to (A) smelly (B) hidden (C) mature (D) heavy 15. The word across in paragraph 2 could best be replaced by (A) in diameter (B) on the other side (C) at a distance (D) inside and out 参考答案:CABDA 5. 指代题 练习题 用券下载整式乘法计算练习题幼小衔接专项练习题下载拼音练习题下载凑十法练习题下载幼升小练习题下载免费 : (1) When small fish venture too close to the tentacles of these "living flowers", they are stung and eaten. (2) The male seals do not journey so far. They swim only to the islands and there the cycle begins again. (3) The mountain's summit is broad and rounded. It is 14,410 feet above sea level and has an area of about one square mile. (4) Although wagon trains had been used to haul freight and passengers between the Eastern seaboard and the Ohio Valley since 1812, they were first used extensively in the 1820's on the Santa Fe Trail. (5) The clownfish even builds its nest where the anemone can protect it. (6) X-rays allow art historians to examine paintings internally without damaging them. (7) Florists often refrigerate cut flowers to protect their fresh appearance. (8) Some of their baskets were completely covered with shell pendants; others with feathers that made the baskets' surfaces as soft as the breasts of birds. (9) Some skilled craftspeople made intricately carved wooden ornamentations for furniture or architectural decorations, while others carved wooden shop signs and ships' figureheads. (10) Many adults, poor and disillusioned with farm life, were lured to the cities by promises of steady employment, regular paychecks, increased access to goods and services, and expanded social opportunities. Others were pushed there when new technologies made their labor cheap or expendable. (11) Some species, for example, begin by dropping the outermost primary feathers on each side and wait until the replacement feathers are about one-third grown before shedding the next outermost, and so on. Others always start with the innermost primary feathers and work outward. (12) The principal difference between urban growth in Europe and in the North American colonies was the slow evolution of cities in the former and their rapid growth in the latter. In Europe they grew over a period of centuries form town economies to their present urban structures. In North America, they started as wilderness communities and developed to mature urbanism in little more than a century. (13) The energy content of food is stored in the chemical bonds that link its atoms and molecules. (14) In the past, biologists considered mushrooms and other fungi as a type of non-free plant. Today, however, they are most commonly regarded as a separate kingdom of living things. Animal Congregation Many types of animals combine the advantages of family association with those conferred by membership in still larger groups. Bees congregate in hives; some fish move in schools; ants gather in mounds; wolves live in packs; deer associate in herds. The main Line advantage of membership in a mass community is the safety that it provides. A large group (5) of prey may be easier for a predator to find at any given point than is a small one, and a predator may think twice before taking on such a group; if a predator does decide to challenge a large group, it may merely encounter a confusing mass of moving bodies and possibly may not succeed in its primary goal. 1. The word those in the passage refers to (A) types (B) animals (C) advantages (D) groups 2. The word it in line 4 refers to (A) advantage (B) membership (C) community (D) safety 3. The word one in the passage refers to (A) group (B) prey (C) predator (D) point 4. The word it in line 7 refers to (A) predator (B) group (C) mass (D) goal 参考答案: 1-4:C、B、A、A New World Epidemics A huge loss of life resulted from the introduction of Old World diseases into the Americas in the early sixteenth century. The inhabitants of the Americas were separated from Asia, Africa, and Europe by rising oceans following the Ice Ages, and, as a result, they were isolated by means of this watery barrier from numerous virulent epidemic diseases that had developed across the ocean, such as measles, smallpox, pneumonia, and malaria. Pre-Columbian Americans had a relatively disease-free environment but also lacked the antibodies needed to protect them from bacteria and viruses brought to America by European explorers and colonists. A devastating outbreak of disease the strikes for the first time against a completely unprotected population is known as a virgin soil epidemic. Virgin soil epidemics contributed to an unbelievable decline in the population of native inhabitants of the Americas, one that has been estimated at as much as an 80 percent decrease of the native population in the centuries following the arrival of Europeans in the Americas. 10. The word they in the passage refers to (A) the inhabitants (B) epidemic diseases (C) rising oceans (D) the Ice Ages 11. The word that in the passage refers to (A) a disease-free environment (B) this watery barrier (C) virulent epidemic diseases (D) the ocean 12. The world them in the passage refers to (A) pre-Columbian Americans (B) the antibodies (C) bacteria and viruses (D) European explorers and colonists 13. The word one in the passage refers to (A) a virgin soil epidemic (B) an unbelievable decline (C) the population of native inhabitants (D) the arrival of Europeans 参考答案: 10-13:A、C、A、B 6. 细节题 Lake Baikal 1 Crescent-shaped Lake Baikal, in Siberia, is only the ninth largest lake in area at 385 miles (650 km) in length and 46 miles (74 km) in width, yet it is easily the largest body of fresh water in the world. It holds one-fifth of the world's total fresh water, which is more than the total of all the water in the five Great Lakes; it holds so much fresh water in spite of its less-than-impressive area because it is by far the world's deepest lake. The average depth of the lake is 1,312 feet (400 meters) below sea level, and the Olkhon Crevice, the lowest known point, is more than 5,250 feet (1,600 meters) deep. 2 Lake Baikal, which today is located near the center of the Asian peninsula, is most likely the world's oldest lake. It began forming 25 million years ago as Asia started splitting apart in a series of great faults. The Baikal Valley dropped away, eventually filling with water and creating the deepest of the world's lakes. 1. What is stated in paragraph 1 about the shape of Lake Baikal? (A) It is wider than it is long. (B) It is circular in shape. (C) Its width is one-half of its length. (D) It is shaped like a new moon. 2. It is indicated in paragraph 1 that the area of Lake Baikal (A) is less than the area of eight other lakes (B) is one-ninth the area of Siberia (C) is greater than the area of any other freshwater lake (D) is equal to the area of the five Great Lakes 3. According to paragraph 1, Lake Baikal (A) holds one-fifth of the world's water (B) holds five times the water of the Great Lakes (C) holds one-ninth of the world's water (D) holds 20 percent of the world's fresh water 4. According to paragraph 1, the Olkhon Crevice is (A) outside of Lake Baikal (B) 400 meters below sea level (C) the deepest part of Lake Baikal (D) 5,000 meters deep 5. It is mentioned in paragraph 2 that Lake Baikal (A) is not as old as some other lakes (B) formed when sections of the Earth were moving away from each other (C) was fully formed 25 million years ago (D) is today located on the edge of the Asian peninsula 参考答案: 1-5:D、A、D、C、B Paragraph The Postage Stamp 1 The postage stamp has been around for only a relatively short period of time. The use of stamps for postage was first proposed in England in 1837, when Sir Rowland Hill published a pamphlet entitled "Post Office Reform: Its Importance and Practicability" to put forth the ideas that postal rates should not be based on the distance that a letter or package travels but should instead be based on the weight of the letter or package and that fees for postal services should be collected in advance of the delivery, rather than after, through the use of postage stamps. 2 The ideas proposed by Hill went into effect in England almost immediately, and other countries soon followed suit. The first English stamp, which featured a portrait of then Queen Victoria, was printed in 1840. This stamp, the "penny black," came in sheets that needed to be separated with scissors and provided enough postage for a letter weighing 14 grams or less to any destination. In 1843, Brazil was the next nation to produce national postage stamps, and various areas in what is today Switzerland also produced postage stamps later in the same year. Postage stamps in five-and ten-cent denominations were first approved by the U.S. Congress in 1847, and by 1860 postage stamps were being issued in more than 90 governmental jurisdictions worldwide. 6. According to paragraph 1, postage stamps were first suggested (A) in the first half of the eighteenth century (B) in the second half of the eighteenth century (C) in the first half of the nineteenth century (D) in the second half of the nineteenth century 7. It is indicated in paragraph 1 that Sir Rowland Hill believed that postage fees (A) should be paid by the sender (B) should be related to distance (C) should have nothing to do with how heavy a package is (D) should be collected after the package is delivered 8. What is stated in paragraph 2 about the first English postage stamp? (A) It was designed by Queen Victoria. (B) It contained a drawing of a black penny. (C) It was produced in sheets of 14 stamps. (D) It could be used to send a lightweight letter. 9. According to paragraph 2, Brazil introduced postage stamps (A) before England (B) before Switzerland (C) after the United States (D) after Switzerland 10. It is mentioned in paragraph 2 that in 1847 (A) postage stamps were in use in 90 different countries (B) it cost fifteen cents to mail a letter in the United States (C) two different denominations of postage stamps were introduced in the United States (D) the U.S. Congress introduced the "penny black" stamp 参考答案:6-10:C、A、D、B、C paragraph The Clovis Culture 1 Archeologists have found sites all over North America that contain similar tools dating from a period about 12,000 years ago. The culture that developed these tools has been named Clovis after the site near Clovis, New Mexico, where the first tools of this sort were discovered in 1932. The tools are quite sophisticated and are unlike any tools that have been found in the Old World. 2 In the years since the first tools of this sort were discovered in New Mexico, archeologists have discovered Clovis tools in areas ranging from Mexico to Montana in the United States and Nova Scotia in Canada. All of the Clovis finds date from approximately the same period, a fact which suggests that the Clovis spread rapidly throughout the North American continent. 3 From the evidence that has been discovered, archeologists have concluded that the Clovis were a mobile culture. They traveled in groups of 40 to 50 individuals, migrating seasonally and returning to the same hunting camps each year. Their population increased rapidly as they spread out over the continent, and they were quite possibly motivated to develop their sophisticated hunting tools to feed their rapidly expanding populace. 11. What is stated in paragraph 1 about Clovis tools? (A) They date from around 10,000 B.C. (B) They have been in use for 12,000 years. (C) They have been found at only one location. (D) They were discovered by archeologists hundreds of years ago. 12. According to paragraph 1, the town of Clovis (A) is in Mexico (B) was founded in 1932 (C) is where all members of the Clovis culture lived (D) is where the first remnants of an ancient culture were found 13. It is indicated in paragraph 1 that the tools found near Clovis, New Mexico, were (A) very rudimentary (B) similar to others found prior to 1932 (C) rather advanced (D) similar to some found in Africa and Europe 14. According to paragraph 2, what conclusion have archeologists drawn from the Clovis finds? (A) That the Clovis tended to remain in one place (B) That the Clovis expanded relatively quickly (C) That the Clovis lived throughout the world (D) That the Clovis were a seafaring culture 15. It is mentioned in paragraph 3 that it is believed that the Clovis (A) lived in familial groups of four or five people (B) had a relatively stable population (C) lived only in New Mexico (D) spent summers and winters in different places 参考答案:11-15:A、D、C、B、D 7. 推理题 Tiger Moths One of the most beautiful of the more than 100,000 known species in the order Lepidoptera are the tiger moths, moths known for the striking appeal of their distinctive coloration. This type of moth is covered with highly conspicuous orange-and-black or yellow-and-black patterns of spots and stripes. Such boldly patterned color combinations are commonplace in the animal world, serving the function of forewarning potential predators of unpleasant tastes and smells. This is unquestionably the function served by the striking coloration of the garden tiger moth, which is quite visually attractive but is also poisonous to predators. Certain glands in the garden tiger moth produce strong toxins that circulate throughout the insect's bloodstream, while other glands secrete bubbles that produce a noxious warning smell. The tiger moth, indeed, is a clear example of a concept that many predators intuitively understand, that creatures with the brightest coloration are often the least suitable to eat. 1. It is implied in the passage about the order Lepidoptera that (A) all members of the order are moths (B) there may be more than 100,000 species in this order (C) all members of the order are brightly colored (D) there are most likely fewer than 100,000 species in this order 2. It can be inferred from the passage that the tiger moth was so named because (A) its coloration resembles that of a tiger (B) it is ferocious predator, like the tiger (C) its habitat is the same as the tiger's (D) it is a member of the same scientific classification as the tiger 3. What would most likely happen to a predator that wanted to eat a tiger moth? (A) The predator would be unable to catch it (B) The predator would capture it by poisoning it. (C) The predator would be unable to find it. (D) The predator would back away from it. 4. Which of the following would a predator be most likely to attack successfully? (A) A purple and orange moth (B) A green and blue moth (C) A brown and grey moth (D) A red and yellow moth 参考答案: 1-4:B、A、D、C The Filibuster 1 The term filibuster has been in use since the mid-nineteenth century to describe the tactic of delaying legislative action in order to prevent the passage of a bill. The word comes from the Dutch freebooter, or pirate, and most likely developed from the idea that someone conducting a filibuster is trying to steal away the opportunity that proponents of a bill have to make it successful. 2 In the earlier history of the U.S. Congress, filibusters were used in both the House of Representatives and in the Senate, but they are now much more a part of the culture of the Senate than of the House. Because the House is a much larger body than is the Senate, the House now has rules which greatly limit the amount of time that each member may speak, which effectively serves to eliminate the filibuster as a mechanism for delaying legislation in the House. 3 In the Senate, the smaller of the two bodies, there are now rules that can constrain but not totally eliminate filibusters. The Senate adopted its first cloture rule in 1917, a rule which requires a vote of two-thirds of the Senate to limit debate to one hour on each side. The rule was changed in 1975 and now requires a vote of three-fifths of the members to invoke cloture in most situations. 4 The longest filibuster on record occurred in 1957, when Senator Strom Thurmond of South Carolina wanted to delay voting on civil rights legislation. The filibuster was conducted for twenty-four hours and 18 minutes on August 28 and 29, when Thurmond held the floor of the Senate by lecturing on the law and reading from court decisions and newspaper columns. It was his hope that this filibuster would rally opponents of civil rights legislation; however, two weeks after the filibuster, the Civil Rights Act of 1957 passed. 14. It can be inferred from the information in paragraph 1 that around 1800 (A) the first filibuster took place (B) legislative action was never delayed (C) the term filibuster was not in use in the U.S. Congress (D) the Dutch introduced the term freebooter 15. It can be determined from paragraph 1 that a freebooter was most likely someone who (A) served in the Senate (B) robbed passing ships (C) enacted legislation (D) served in the Dutch government 16. It is implied in paragraph 2 that, in its early years, the House (A) had no rules against filibusters (B) had few filibusters (C) had fewer filibusters than the Senate (D) had the longest filibuster on record 17. Based on the information in paragraph 3, a vote of cloture would most likely be used to (A) initiate filibusters (B) break filibusters (C) extend filibusters (D) encourage filibusters 18. It can be inferred from the information in paragraph 3 that the 1975 rule change (A) increased the number of people needed to vote for cloture (B) made it easier to limit a filibuster (C) covered all types of Senate votes (D) decreased the number of people in the Senate 19. It is implied in paragraph 4 that Senator Thurmond was opposed to (A) filibusters (B) lecturing on the law (C) speaking in the Senate (D) the Civil Rights Act of 1957 参考答案: 14-19:C、B、A、B、B、D 8. 修辞目的性题 Xerography 1 One more familiar use of electrochemistry that has made its way into the mainstream is xerography, a process for replicating documents that is dependent on photoconductive materials. A photoconductive material is an insulator in the dark but becomes a conductor when exposed to bright light. When a photocopy is being made, an image of a document is projected onto the surface of a rotating drum, and bright light causes the photoconductive material on the surface of the drum to become conductive. 2 As a result of the conductivity, the drum loses its charge in the lighted areas, and toner (small grains to which dry ink adheres) attaches itself only to the darker parts of the image. The grains are then carried to a sheet of paper and fused with heat. When a laser printer is used, the image is projected by means of a laser beam, which creates a brighter light and a greater contrast between lighter and darker areas and therefore results in sharper printed images. 1. The author begins the first paragraph with One more familiar use of electrochemistry in order to (A) explain that xerography is one of the less familiar uses of electrochemistry (B) make it clear that electrochemistry requires photoconductive materials (C) show that xerography is the only known use for electrochemistry (D) indicate that other less familiar uses have already been discussed 2. Why does the author explain that A photoconductive material is an insulator in the dark but becomes a conductor when exposed to bright light? (A) It gives an explanation of a property that is necessary for xerography. (B) It indicates that bright light is required for insulation to take place. (C) It gives one example of a successful xerographic process. (D) It explains the role of insulation in xerography. 3. The author places the phrase small grains to which dry ink adheres in parentheses in order to (A) provide information that contradicts the previous statement (B) provide another example of conductivity (C) provide further detail information about toner (D) provide an alternate explanation for the effectiveness of toner 4. Why is a laser printer mentioned? (A) It is an alternative to xerography. (B) It is a way of duplicating without using electrochemistry. (C) It is a second example of xerography. (D) It is a less effective type of xerography than is a photocopier. 正确答案:D_A_C_C Paragraph Demographic Change 1 By the end of the 1920s, American society had undergone a long and historic demographic change. Since the 1870s, the country had been moving from a more rural mode that was based on high birthrates-as high as 50 births annually per thousand people in the early nineteenth century-to a more metropolitan mode. Prior to the 1870s, the population of the country was increasing by about a third every decade; however, by the end of the 1920s, a radical about-face had taken place. 2 One major factor to affect the demographics of the country during this period was a dramatic decrease in birthrates. The trend during this era was more pronounced in urban areas but also had an effect in rural areas. As a result of the trend toward smaller families, particularly in cities, the birthrate was down to 27.7 births annually per thousand women by 1920 and had dropped even further-to 21.3 births annually per thousand women-by 1930. 3 At the same time, the deathrate, too, was falling. Urban living led to better sanitation, refrigeration, and water purification; it also resulted in better medical care as doctors and hospitals were more readily available. Most likely as a result of these factors, there were only eleven deaths per thousand annually by the early 1920s, which was half the rate of the 1880s. 5. Why does the author include the phrase as high as 50 births annually per thousand people in the early nineteenth century in paragraph 1? (A) To show that metropolitan areas of the country had higher birthrates than rural areas (B) To provide statistical evidence of the elevated birthrate in the 1870s (C) To quantify what had happened with the American population in the previous century (D) To argue against the belief that the demographics of the country had changed 6. The author uses the word however in paragraph 1 in order to (A) to make it clear that an extreme change had taken place (B) to emphasize how tremendously the population was increasing (C) to point out an alternate explanation for the change (D) to indicate a difference of opinion with other demographers 7. The author includes the word too in paragraph 3 (A) to indicate that both the birthrate and the deathrate were holding steady (B) to show that the rural mode was similar to the metropolitan mode (C) to clarify the explanation that population trends before and after 1870 were similar (D) to emphasize that paragraph 3 discusses a second factor in the demographic change 8. Why does the author mention better medical care in paragraph 3? (A) It helps to explain why the birthrate is increasing. (B) It is an example of a factor that contributed to the improved birthrate. (C) It helps to explain why the deathrate is increasing. (D) It is an example of a factor that contributed to the improved deathrate. 9. The author includes the expression Most likely in paragraph 3 to show (A) that the data about the average number of deaths was not verified (B) that doctors and hospitals may not have actually been more available (C) that other factors may have contributed to the decreasing deathrate (D) that the deathrate may not have decreased as much as stated 正确答案:B_A_D_D_C Paragraph Territoriality 1 In many species, members of the species exhibit aggressive behavior toward one another, often with a focus on territoriality, the fight for exclusive control of a particular area. The level of violence in territorial aggression varies widely from species to species, though few species fight other members of the species to death and instead rely on non-lethal contests for control of territory that involves noise-making maneuvers such as roaring or hissing or aggressive posturing or gestures. 2 Most bird species are known to be territorial to some degree, though the territorial behaviors exhibited by most species are limited to singing contests, which can go on for days, or threatening postures with wings lifted or extended. The swan, on the other hand, is quite unlike other birds in this respect. The swan may seem particularly elegant and serene as it glides across the surface of a lake; however, male swans are, in reality, quite territorial and will fight other male swans for the exclusive use of a lake no matter how large the lake is. Males will engage in ferocious contests, with their necks entwined as they attempt to cause mortal injury to each other. 15. Why does the author include the fight for exclusive control of a particular area in paragraph 1? (A) It presents an argument against a previously stated point. (B) It provides a definition of a previously stated term. (C) It presents a second area of focus of aggressive behavior. (D) It introduces a new idea to be further developed in the paragraph. 16. The author uses the word instead in paragraph 2 to show that the information that follows (A) contradicts what precedes it (B) expands upon what precedes it (C) provides an example of what precedes it (D) explains an effect of what precedes it 17. Why does the author mention singing contests in paragraph 2? (A) To demonstrate that birds create beautiful sounds (B) To provide an example of unusual behavior by birds (C) To show how violently aggressive some bird behavior is (D) To demonstrate that some types of territorial behaviors are not very aggressive 18. The author discusses the swan in paragraph 2 to provide an example of (A) a bird that makes threatening postures with its wings (B) a bird whose territorial behavior is extremely aggressive (C) non-lethal contests for control of territory (D) the limited aggressive behavior generally exhibited by birds 19. The author mentions their necks entwined in paragraph 2 in order (A) to indicate that swans are really rather affectionate (B) to emphasize how long swans' necks are (C) to make the point that the swans are only pretending to hurt one another (D) to create a mental image for the reader of fighting swans 正确答案:B_A_D_B_D 9. 文章内容小节题 Island Plant Life Islands are geographical formations that are completely surrounded by water, yet many islands are covered with a rich assortment of plant life. It may seem surprising that so much plant life exists on many islands, yet there are surprisingly simple explanations as to how the vegetation has been able to establish itself there. Some islands were formerly attached to larger bodies of land, while others were created on their own. Islands that were created when flooding or rising water levels cut them off from their neighbors often still have the plant life that they had before they were cut off. In cases where islands formed out of the ocean, they may have plant life from neighboring lands even though they were never actually attached to the neighboring lands. Winds carry many seeds to islands; some plants produce extremely light seeds that can float thousands of feet above the Earth and then drift down to islands where they can sprout and develop. Birds also carry seeds to islands; as birds move over open stretches of water, they can serve as the transportation system to spread seeds from place to place. This passage discusses the ways that plant life is able to develop on islands. ? ? ? Answer Choices (choose 3 to complete the chart): (1) Some seeds are able to float great distances in the air. (2) Some plant life existed before islands were cut off from larger bodies of land. (3) Some islands have many different varieties of plants. (4) Birds sometimes carry seeds to islands. (5) Some islands were created when rising water cut them off from larger bodies of land. (6) Some plant seeds are carried to islands by the wind. 参考答案:(2)、(4)、(6) PASSAGE TWO (Question 2) Paragraph Ben and Jerry 1 All successful businesses are not established and run in the same way, with formal business plans, traditional organizational structures, and a strong focus on profits. Ben Cohen and Jerry Greenfield, the entrepreneurs responsible for the highly successful ice cream business that bears their names, were businessmen with a rather unconventional approach. 2 They were rather unconventional from the start, not choosing to begin their careers by attending one of the elite business schools but instead choosing to take a five-dollar correspondence course from Pennsylvania State University. They had little financial backing to start their business, so they had to cut corners wherever they could; the only location they could afford for the startup of their business was a gas station that they converted to ice cream production. Though this start-up was rather unconventional, they were strongly committed to creating the best ice cream possible, and this commitment to the quality of their product eventually led to considerable success. 3 Even though they became extremely successful, they did not convert to a more conventional style of doing business. In an era where companies were measured on every penny of profit that they managed to squeeze out, Ben and Jerry had a strong belief that business should give back to the community; thus, they donated 7.5 percent of their pretax profit to social causes that they believed in. They also lacked the emphasis on executive salary and benefits packages that so preoccupy other corporations, opting instead for a five-to-one policy in which the salary of the employee receiving the highest pay could never be more than five times the salary of the employee receiving the lowest pay. This passage discusses Ben and Jerry's unconventional company. ? ? ? Answer Choices (choose 3 to complete the chart): (1) They each had a personal commitment to social causes. (2) They began their business with little background and investment. (3) They believed strongly in producing a very high-quality product. (4) They had a salary structure that limits the salaries of high-level executives. (5) They set aside a noteworthy portion of their profits for social causes. (6) They borrowed several thousand dollars from friends to start their business. 参考答案:(2)、(4)、(5) PASSAGE THREE (Question 3) paragraph The Bald Eagle 1 When the bald eagle became the national symbol of the United States in 1782, soon after the country was born, it is estimated that there were as many as 75,000 nesting pairs in North America. By the early 1960s, however, the number of nesting pairs had been reduced to only around 450. 2 The demise of the bald eagle is generally attributed to the effects of the pesticide DDT (dichloro-diphenyl-trichloroethane). This pesticide was used to kill insects harmful to agriculture, thereby increasing agricultural production. One unintended negative result of the use of DDT was that, while it did get rid of the undesirable insects, it also made its way along the food chain into fish, a favorite food source of the bald eagle. 3 The bald eagle is now protected by federal laws. It was originally protected by the Bald Eagle Act of 1940 and later by the Endangered Species Act of 1973. However, it is not just the laws directly related to endangered species that aided in the resurgence of the bald eagle; its resurgence has also been widely attributed to the banning of DDT in 1972. Today there are more than 5,000 pairs of bald eagles, a tenfold increase over the low point of 450, and the bird was removed from the list of endangered species in july, 1999. This passage discusses radical shifts in population that the bald eagle has undergone. ? ? ? ? Answer Choices (choose 4 to complete the chart): (1) the numbers of bald eagles were greatly reduced, at least in part due to the effects of a pesticide. (2) The legislation has had a positive effect on the number of bald eagles. (3) The bald eagle was named as the national symbol of the United States in the late eighteenth century. (4) Early in the history of the United States, there were huge numbers of bald eagles. (5) Two different pieces of legislation that affected the bald eagle were enacted 33 years apart. (6) The federal government enacted legislation specifically designed to protect the bald eagle as well as to outlaw the pesticide DDT. 参考答案:(1)、(2)、(4)、(6) 10. 图 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 题 Sand Dunes 1 Sandy deserts contain enormous volumes of sand eroded from mountains and carried to the deserts by wind or water. The huge quantities of sand that make up sandy deserts are blow about into dunes of various shapes. 2 Ridge dunes form where there are large amounts of sand, generally in the interiors of deserts, and winds blow in one direction. Under there conditions, parallel ridges of sand, known as transverse dunes, form at right angles to the wind. 3 When the direction of the wind changes so that it comes from different directions, star-shaped dunes form from the massive amounts of sand in desert interiors. Star-shaped dunes are relatively stable dunes that reach incredible heights, up to 80 meters high in some deserts, and are quite common in massive deserts such as the Sahara. 4 Crescent dunes form on the edges of deserts where there is less sand and where the winds blow mainly in one direction. These dunes, which are also known as barchan dunes are less stable than star-shaped dunes and can shift as much as 20 meters per year as winds blow over the outer curves of the crescent in the direction of the pointed ends. Directions: Select the appropriate sentences from the answer choices, and match them to the critical information about the sand dunes to which they relate. THREE of the answer choices will not be used. This question is worth 3 points. amount of ? sand ? direction of ? winds ? Answer Choices (choose 4 to complete the chart): (1) Ridge and crescent dunes form where the winds blow from one direction. (2) Crescent dunes are also known as barchan dunes. (3) Star-shaped dunes form where the winds blow from different directions. (4) Transverse dunes are created parallel to the wind. (5) Ridge and star dunes form where there is a lot of sand. (6) Star-shaped dunes are more stable than crescent dunes. (7) Crescent dunes form where there is less sand. 参考答案: 第一栏:(5)、(7) 第二栏:(1)、(3) William Faulkner 1 Author William Faulkner is today recognized as one of America's greatest writers on the basis of a body of novels that so convincingly portray the culture of the South in the years following the Civil War, with its citizens overcome by grief and defeat and trying to cling to old values while struggling to take their place in a changing world. The acclaim that today is Faulkner's, however, was slow in coming. 2 Though Faulkner was praised by some critics and reviewers during the first part of his career, is novels did not sell well and he was considered a fairly marginal author. For the first few decades of his career, he made his living writing magazine articles and working as a screenwriter rather than as a novelist. Throughout this period, he continued to write, though his novels, sometimes noted for the stirring portrait that they presented of life in the post-Civil War South, were generally relegated to the category of strictly regional writing and were not widely appreciated. 3 Beginning in 1946, Faulkner's career took an unexpected and dramatic turn as Faulkner came to be recognized as considerably more than a regional writer. The Portable Faulkner was published in that year by Viking Press; two years later he was elected to the prestigious National Academy of Arts and Letters; he was awarded the Nobel Prize for literature in 1949. Over the next decade, his work was recognized in various ways, including a National Book Award and two Pulitzer Prizes, and he became a novelist in residence at the University of Virginia. His success led to a degree of affluence that enabled him to take up the life of a southern gentleman, including horseback riding and fox hunting. Ironically, he died as a result of an accident related to these gentlemanly pursuits, succumbing as a result of injuries suffered during a fall from a horse. Directions: Select the appropriate phrases from the answer choices, and match them to the phase of William Faulkner's career to which they relate. TWO of the answer choices will not be used. This question is worth 3 points. Faulkner in the ? first phase of his ? career ? Faulkner in the ? second phase of ? his career ? Answer Choices (choose 6 to complete the chart): (1) Was considered one of America's greatest writers (2) Received a small amount of critical acclaim (3) Died as a result of a horseback-riding incident (4) Received numerous awards and acclaim (5) Was considered merely a regional writer (6) Wrote novels about various American regions (7) Made his living as a novelist (8) Made his living with writing other than novels