听力教程第三册答案UNIT3

SectionOnePart1SpotDictationWildlife(1).diesout(11).Fortunately(2).havebecomeextinct(12).wasfounded(3).filledwithpoison(13).raisemoney(4).pesticides,sewage(14).fromextinction(5).livein(15).international(6).rainforests(16).£35million(7).beingdestroyed(17).conservation(8).nearlydisappeared(18).fivecontinents(9).climate(19).30mammals(10).supplies(20).survivePart2ListeningforGistThisdialogueisaboutmakinganinquiryaboutthelaundry.Thekeywordsarereception,laundry,shirts,blouses,wardrobe.SectionTwoListeningcomprehensionPart1DialogueAUNInterpreterExerciseTFFFTFTTTFPart2PassageTheClydeRiverExerciseBSentenceDictation1.Salmonareverysensitivetoenvironmentalconditionsandrequirecool,well-oxygenatedwatertothrive.2.Theclosureoffactoriesthathadpouredtoxinsandotherpollutantsintotheriverboostedwaterqualitysignificantlyandmodernsewageprocessingplantshelpedeliminatesomeofthefoulsmells.3.Theriver’sdepthandnavigabilityhelpedmakeGlasgowanimportantcenterforimportingtobacco,sugarandcottonfromtheAmericasstartinginthe1600s.4.ThemillsandfactoriesthatlinedtheClydemadesteel,textilesandchemicals,tannedleatherandevenproducedcandyandbrewedalcohol.5.Whenthefactoriesbegantocloseinthesecondhalfofthe20thcentury,working-classGlasgow,Scotland’slargestcity,gainedareputationforsocialdeprivationandroughstreets.ExerciseCDetailedListeningACCBDCBAExerciseDAfter-listeningDiscussion1.TheClyde’sdepthandnavigabilityhelpedmakeGlasgowanimportantcenterforimportingtobacco,sugarandcottonfromtheAmericasstartinginthe1600s.AndthecitybecameacenterofBritishshipbuildingandoneofthecountry’sgreatmanufacturingcentersduringtheIndustrialRevolution.Morerecently,itsartmuseumsandnightlifehavehelpeddriveaneconomiccomebackthathasturnedthecityintoapopulartouristdestination.(Open.)SectionThreeNewsNewsItem1ExerciseAThis news item is about abanonnineoftheworld’smosthazardouschemicals.ExerciseB(1)agreement(2)nine(3)12(4)PersistentOrganicPollutants(5)StockholmConvention(6)pesticides(7)flame-retardants(8)headlice(9)crossboundaries(10)EquatortotheArctic(11)atmosphere(12)degrade(13)dangerous(14)risks(15)humanhealth(16)youngpeople(17)farmers(18)pregnantwomen(19)theunbornNewsItem2ExerciseAThis news item is about anappealforglobalcooperationtodealwithclimatechange.ExerciseB1.Scientistspredicttheworldwillgethotteroverthecomingdecades.2.AmajorconferenceinCopenhagenattheendoftheyearwillfocusonwaystomitigatetheworstaffectsofglobalwarming.3.WMOSecretary-GeneralMichelJarraudsayscountriesmusthavethetoolstoadapttoachangingclimate.4.Jarraudnotesfarmersincertainpartsoftheworldwillhavetoadapttoadryerclimate.Hesaystheymighthavetomodifyirrigationsystemorconsidergrowingcropsthatdonotrequiremuchrain.5.Globalwarmingislikelytoincreasetheintensityandfrequencyofextremeweatherevents.6.Weatherobservationnetworksmustbestrengthened.7.Becauseeventhebiggest,richestcountriescannotdoitalone.Thedevelopedworldneedsreliableweatherinformationfromdevelopingcountriesandvice-verse.NewsItem3ExerciseAThis news item is about the recoveryoftheGreatBarrierReef.ExerciseBTFTFTTSectionFourSupplementaryExercisesPart1FeaturereportExerciseAThisnewsreportisaboutaglobaleventknownasEarthHour.ExerciseB1.Castle;stadium;thepyramids;dimmingtheirlights2.thebiggestclimatechangedemonstration3.abillionpeople;greenhousegasemissions;awarmingclimate4.architects;meltdown;anexcusetodelayenvironmentalreforms5.alargeglobalmovement;publicpressure;influence;CopenhagenPart2PassageExerciseBSentenceDictationWhatifyoucouldalterthefamiliarshape?Wouldasquaretomatostillbeatomato?Scientistsarelearninghowtochangetheshapeoffruitsandvegetablessotheycanbeharvestedorprocessedmoreeffectivelyormaybejusttoreducewasteinthekitchen.Peoplehavebeencross-breedingtomatoestomaketheshapestheywantforalongtime.Butthisisnotthesamething.Ifyoucouldgetatomatoaslongasacucumber,whereyoucouldget20or30slicesoutofit,itwouldbegreat.Onceweknowallthegenesresponsibleformakingdifferentshapesintomatoes,we’llhaveabetterideaofwhatcontrolstheshapeofothercrops,suchaspeppers,cucumbersandgourds.ExerciseCDetailedListeningBananasandonionsaretheexamplesknownasmuchbytheirshapeasbytheircolorortaste.Thehybridorcross-breedingtechniqueisregardedasthetraditionalwayofchangingtheshapeoffruits.Thegenetictechniquewhichcanalsochangetheshapeoffruits.TheydiscoveredtheSUNgeneandmanagedtocloneitintomatoes.Comparedwithroundtomatoes,squaretomatoesfitintopackagesbetterandmightbeeasiertoworkwith.ThedifferencebetweenwhathisbrotherandlotsofotherfolkshavebeendoingandwhatvanderKnaapisdoingisthedifferencebetweencross-breedingandlocatingaspecificgenethataffectstheshapeoftomatoes.There’salotofwaste.ChefAlfordhatestoseesomuchgetthrownaway.Sohe’sgotarequestofDr.vanderKnaap.“Onceweknowallthegenesresponsibleformakingdifferentshapesintomatoes,”vanderKnaapsays,“we’llhaveabetterideaofwhatcontrolstheshapeofothercrops,suchaspeppers,cucumbersandgourds.Andmaybethenwe’llgetthosesquarecarrots.”ExerciseDAfter-ListeningDiscussion1.ChefAlford’srequest:“Ifwecouldgetsquarecarrots,itwouldbegreat.Ifyoucouldgetatomatoaslongasacucumber,whereyoucouldget20or30slicesoutofit,itwouldbegreat.”VanderKnaap’sopinionisthatthelong,thintomatoeshasn’tworkedoutjustyetandthere’smoregeneticstobestudied.2.(Open.)