人教版初二英语下册三单元知识点

人教版初二英语 下册 数学七年级下册拔高题下载二年级下册除法运算下载七年级下册数学试卷免费下载二年级下册语文生字表部编三年级下册语文教材分析 三单元知识点 英语初二 第二课 Unit 3 What were you doing when the UFO arrived? 1. 教学目标:学生能熟练掌握第三单元的单词以及重点短语，能够灵活使用本单元的交际 用语，掌握基本语法:when, while 引导的时间状语从句以及过去进行时 12342. 教学重点:?重点单词 ?重点短语 ?交际用语 ?when, while 引导的时间状语从句 5?过去进行时 123. 教学难点:? when, while 引导的时间状语从句 ?过去进行时 4. 教学过程: (1) 带领学生通读这两个单元的重点单词，纠正其发音，确保发音准确。 (2) 讲解关于UFO (Unidentified Flying Object) 不明飞行物的背景知识 (3) 图片译文:So, what were you doing when the UFO arrived? 那么，飞碟来的时候你正在做什么, Well, I was standing in front of the library. 哦，我正站在图 书 关于书的成语关于读书的排比句社区图书漂流公约怎么写关于读书的小报汉书pdf 馆前面。 So, what were you doing when the UFO arrived? 这是一个含有时间状语的主从复合句，主句为what were you doing ，它是过去进行 时的特殊疑问句。过去进行时表示在过去某一个时刻或某个时间正在进行或发生的动作， 由“主语+be ( was/were) + v.-ing形式”构成。 现以动词work 为例，其肯定式、否定式和疑问式如下: 肯定式:I/ He/ She/ It was working. We/ You/ They were working. 否定式:I/ He/ She/ It was not working. We/ You/ They were not working. 疑问式和简略回答: Was I working? Were you working? Was he/ she/ it working? Yes, you were. Yes, I was. Yes, he/ she/ it was. No, you were not. No, I wasn’t .No, he/ she/ it wasn’t. Were we/ you/ they working. Yes, you/ we/ they were. No, you/ we/ they weren’t. 表示过去进行时的时间状语有:at that time, this time yesterday, at ten yesterday evening, from eight to twelve yesterday以及when, while引导的时间状语从句。 Eg:It was raining at 6 o’clock this morning. What were you doing this time last night? He was sleeping late when the UFO arrived. 两个动作同时发生时，较短的动作可用一般过去时，而较长时间的动作可用过去进 行时表示。 Eg:Mum was talking with her friends when Sue entered the room. 练习: 1. The boy ___ his work when his mother ___ into the room. A. is doing, went B. was doing, go C.was doing, went D. is doing, go 2. ___ you ___ TV from 7 to 9 last night? A. Do, watch B. Did, watch C. Were, watching D. Were, watch 3.-I called you yesterday evening, but there were no answer. - Oh, I am sorry. I ___ dinner at my friend’s home. A. have B. had C. was having D. have had 答案:C C C When the UFO arrived 中的 when 是连词，意为“当„„的时候”，她引导的是一个时 间状语从句，表示时间，说明一个动作发生时，另一个动作正在进行。 The students were having an English class when the visitors came in. When也可以表示正在进行某动作时，另一个动作发生了。 When I was cleaning the classroom, my keys dropped on the floor. When引导的时间状语从句也可以放在句首，但要用逗号与主句隔开。 When I got home, my mother was cooking. When作疑问副词，表示“什么时候，何时”。 When were you born? 辨析:when, while ,as When和while用来引导时间状语从句。When引导的时间状语从句可表示某一段时间， 也可表示某一时刻，从句中的谓语东西可以是延续性的，也可以是短暂性的;while引导的 时间状语从句表示一段时间，偏重状态或动作的过程，从句中的谓语动词为表示状态或延续 性的动词，从句中多用进行时;as强调动作同时进行，一般动作延续的时间不长。 Eg:When they heard the good news, they jumped with joy. When/ While she was having lunch, the door bell rang. =When the door bell rang, she was having lunch. The students sing as they go along. 练习: Mother was coking ___ father was watching TV. A. while B. when C. as D. for 答案:C 解析:in front of 在„„的前面，指在这一事物的前面，反义词为:behind in the front of 在„„的前面，是指在这一事物内部的前面，反义词组是:at the back of„„ 在„„的后部 (4)Isn’t that amazing! 难道那不令人惊讶吗～ 此为否定疑问句，注意其肯定句和否定句的含义: —Didn’t he come here? 难道他没来这儿吗, —Yes, he did. 不，他来了。 —No, he didn’t. 是的，他没来。 辨析:amazing “惊人的，了不起的”，大多用语褒义，不用于修饰人 amazed 多修饰人，常用于be amazed by/ at„„ amaze v. 使„„大为惊讶，比surprise 更具意外性 (5)What was the girl doing when the UFO took off? Take off “起飞”，此外还有“脱下(衣、帽、鞋等)，取下(眼镜、戒指等)”之意。 (6)Before the police arrived, the alien left the shop and then visited the Museum of Flight. Arrive作不及物动词，后面的介词大体上按到达地点的大小来决定。At后接较小的场 所(如镇、家、店等)，in后接较大的地方(如国家、大都市等)。 Eg:It took me a long time to reach/ arrive at/ get to the station. get后面接副词时，要省to,如:get home, get here (7)The dog got out of this box and ran away. get out of „„ 从„„中出来 上下车的英文表达法:get off/ on a train (bus, boat, plane, horse) Get out of/ in a taxi (car ) 练习:A. I get on well ___ my neighbours. B. We just got back ___ our holidays. C. I’ll have to get ___ early tomorrow morning. D. When will the bus get ___ the stop? 答案: with from up to (8) What happened while Linda was on the telephone? 琳达打电话时，发生了什么事, 辨析: take place 与 happen Happen表示“发生，碰巧”，指事情意外或偶然地发生 Do you know what happened yesterday evening in Jim’s home? 作“碰巧”讲时，其主语可以是人。常用词组happen to do sth.碰巧做某事 He happened to be out when I called him. Happen后除接动词不定式外，还可接名词或代词。Happen to sb.某人发生了某事 No matter what happens to you, I’ll help you. Take place表示“发生，举行”，一般指事情的发生有某种原因或事先有安排 The Olympic Games in 2012 will take place in London. (9) She didn’t think about looking outside the station. 辨析:think about 考虑，思考 think of 考虑;想起，记得 Don’t think of/ about me any more. We are thinking about/ of buying a new car. think over 仔细考虑 think hard 苦苦思考(强调过程艰难) (10)While she was talking on the telephone, Davy met another dog outside the station. Another 作形容词时，后一般接可数名词，用来指三者或三者以上的“另一个”。 Please nave another cup of tea. 与数词连用时，后面跟复数名词，“又，再，还”。 He’ll stay at home for another two weeks. 作代词，指不定数目中的“另一个” This glass is broken. Give me another. 辨析:one„„ the other 两样中的“另一个” I have two dresses. One is red and the other is white. Others 和some 对比使用时，表“有些”，而不是“其他”。 Some cleaned the windows, others wiped the floor. The others “其余的”，表示在一个范围内的其他全部 This dictionary is better than the others. The other 是指其中的“另一个”。 Give me the other one, not this one. Unit 3(续) 1) Even the most everyday activities can seem important. 即使是最普通的活动也会显得很重要。 Everyday作形容词时，表示“每天(发生)的，普普通通的，平平常常的”，用于修饰名词。 辨析 everyday 与 every day Every和day 的连写和分写，不但意思不同，在句中的作用也不同。Everyday是一个形 容词，意为“每日的，日常的”，只作定语，即用来修饰名词。而every day则用作状语，意 为“每天”。 He likes wearing everyday clothes. 他喜欢穿便服。 He must get up early every day. 他每天都必须早起。 2) Not all events in history are as terrible as this, of course. 当然，并非历史上所有的事件都这样可怕。 Not all 表示“并非所有的”，这是部分否定的一种形式。不定代词all, both, each, 或every 与 not 连用时，只表示部分否定。 I don’t like all the stories. 我并不喜欢所有这些故事。 I don’t want to buy both of the books. 这两本输我不想都买。 注意:在否定句中用and连接两个宾语、表语、定语、状语时，只表示部分否定，并且否定and 后面的部分;如用or 连接句中两部分，则表示全部否定。 She is not a bright and beautiful girl. 她并不是一个既聪明又漂亮的女孩。(部分否定) She is not a bright or beautiful girl. 她是一个既不聪明又不漂亮的女孩。(全部否定) 练习:Not everyone here is a student. (改写同义句) ____ here ____ ____ a student. 解析: everyone„„not = not everyone 意为“并不是每一个都„„”，属于部分否定，句意:这儿的人并不都是学生。 3) People often remember what they were doing when they heard the news of important events in history. 人们常常记得当他们听到历史上一些重大事件的消息时他们在做什么。 Hear是及物动词，意为“听到，听”，通常指听的结果。Hear of意为“听说，获知”，指间接地听到。Hear from意为“收到„„的来信”。 Listen是不及物动词，意为“听”;listen to 意为“听„„”，listen 与listen to 均强调听的动作。 I listened but I heard nothing. 我听了，但什么也没有听到。 辨析:hear about, hear of, hear from 1?hear about 意为“听说”。 I heard a lot about the pop singer before. 以前我听说了不少关于那位流行歌手的事。 2?hear of 意为“听说，得知”，该短语为动介结构，后面常接名词、代词或动名词作宾语，表示听到有关某事的消息或情况。Hear of 后一般不接从句，要接从句时，则不用of. They have never heard of that. I heard our Chinese teacher was ill. 3?hear from 意为“接到„„的信，收到„„的来信”。该短语为动词短语，后接表示人的名词或代词，也可以表达为get/ receive a letter from sb. I haven’t heard from my aunt for long. 注意:hear from 在表示“收到„„的来信”时，不要出现letter。 4)Don’t shout! I can hear you. 别大声喊～我能听见你说话。 Shout v.呼喊，呼叫 辨析:shout at 与 shout to 1 ?shout at 意为“向„„喊/ 叫嚷/ 训斥”。该短语中的shout为不及物动词，at表示方向， 后接表示人的名词或代词。Shout at有时表示训斥某人，含有恶意。 He tried to talk to the men, but they shouted at him. 他设法和那些人谈话，但他们却冲他大声嚷嚷。 2 ?shout to意为“向„„喊叫”，表示向某人大声叫喊以便让某人听见，不过shout to 不 含恶意。 He shouted to the girl and warned her of the danger. 他冲那个女孩大喊，要她注意危险。 5) 感叹句。 在交谈中遇到令人惊讶的事可用感叹句。其句型有两种: 1? What + (冠词) + 形容词 + 名词 + 主语 + 谓语～ 2? How + 形容词/ 副词 + 主语 + 谓语～ What an interesting story it is! 多么有趣的一个故事啊～ How interesting the story is! 那个故事多么有趣啊～ 中考考 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 : 1) Mr. Smith has bought a large house ____ a swimming pool. A. in B. with C. of D. at 解析:此题考察介词with的用法。介词with在此意为“具有，带有”的意思。句意: 史密斯先生买了一栋带有游泳池的大房子。 2) -Shall I take you to the shopping mall after work? - No, thanks. My mother said she would ____ there on his way home. A. look for me B. pick me up C. let me down D. take after me 解析:句意:---下班后我带你去购物中心怎么样,---不用，谢谢。我爸爸说回家时把 我带到那里去。 look for 寻找 pick sb. Up 捎带(某人)let me down 让我下来 take after sb.长得像某人 3) Why not ___ your teacher for help when you can’t finish ___ it by yourself ? A.ask; write B. tell; writing C.ask; writing D. telling; write 解析:Why not„„,是提建议的一种表达方法;ask sb. For sth. 向某人寻求帮助;finish doing sth. 完成某事。句意:当你自己完成不了写作时为什么不请你的老师帮忙呢, 4)The children ___ a P.E. class on the playground when it suddenly began to rain. A. have B. are having C. had D. were having 解析: 此题考察过去进行时的用法。句意:孩子们正在操场上上体育课，这时天突然开 始下雨了。当一个动作发生的时候，另一个动作正在进行，根据语境知应用过去进行时。