英语学习新视野视听说第三册答案710单元必备Word文档下载推荐.docx

英语学习新视野视听说第三册答案710单元必备Word文档下载推荐.docx

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Right.ScientistsallovertheworldoverareevenuncertainaboutthecauseofthewarmPacificcurrentthatbringsstormsordrought—themysteriousEINino.

Q:

Whichofthefollowingistrueaccordingtotheconversation?

2.Script

Everyoneistalkingaboutenvironmentalproblem:

acidrain,thegreenhouseeffect,holesintheozonelayer.Weshouldthinkpositively.Whatcanwedotoimprovethings?

Iagree.Wecoulddoalotmoretoharnessthesun’senergyforheatingandlightinginourhomes.InJapan43,000solarroofswereinstalledin2002.

Howdothemanandthewomanviewtheenvironment?

3.Script

WelivedinBeijingsomeyearsago.Itwasalwaysdifficulttokeepthehousecleanwithwindfromthenorthblowingsandfromthedesertatus.

That’swhytheChinesegovernmenthasbeenencouragingpeopletoplanttreesalongtheedgesoftheGobiDesert.Nowthosetreesactaswindbarriers.

Whatdidthegovernmentencouragepeopletodo?

4.Script

ManyoldrefrigeratorsandcarsareenvironmentalhazardsbecausetheycontainCFCsthatdestroytheozonelayer.

Yes,butgovernmentororganizationsarehelpingpeopletosafelydisposeofoldrefrigeratorsor,inthecaseofcars,toupgradetheirairconditioning.

Whataregovernmentdepartmentshelpingpeopletodo?

5.Script

Hey,that’sanaerosolsprayyou’reusingonyourhair!

Buildabomborsetfiretotheapartmenttokillusquicklyinsteadofmakingholesintheozone,sowedieofcancer.

Coolit,man.Thisspraydoesn’tcontainCFCs.Andyou’dbetterreadalittlemore.In2003theholeintheozonelayershrankby20percent,sothere’snoreasontopanic.

Whatdoesthemanmean?

Keys:

1.B2.D3.A4.A5.C

III.ListeningIn

Task1:

Weshouldhaveproperrespectfornature!

Script

Martha:

Doyouthinkmostpeopleinyourculturerespectnature?

Ed:

Ithinkso.Umm…morenowthanbefore.

Whatdoyouthinkisthemostseriousenvironmentproblemintheworldtoday?

Today…Ithinkdamagetotheozonelayerisabigproblem;

andanotherproblemispollutioninbigcitiesandthingslikethat.

Howdoyoulearnaboutenvironmentalproblems?

Umm…throughschool.Alotofclubspromoteenvironmentalsafely,andsomeTVprograms,too.Theytalkaboutenvironmentalsafelyandstufflikethat.

Doyouthinkstudentsshouldlearnmoreabouttheenvironmentatschool?

Ithinkso.So,astheygrowolder,theycanbemoreawareofalltheproblemsthataregoingon.Andalsotopreventmoreproblemsfromoccurring.

Ifyoucouldcreateanewlawtohelptheenvironment,whatwoulditbe?

Anewlawfortheenvironment?

Umm…I’dprobablysaythatwhenpeoplethrowawaytheircigarettebutts,theyhavetothrowthemintothegarbagebin,notjustthrowthemeverywherebecauseit’sjustlitteringandIhatethat.Sotheyshouldbefinediftheythrowthemonthefloorontheground.

That’sagoodidea.Whatdoyoupersonallydotohelpprotecttheenvironment?

I’msoagainstlittering.Ineverlitter.IfIseesomebodylitter,Igetreallyangry.SoIalwaysthrowmytrashintothegarbagebin.

WhilebeinginterviewedbyMartha,Edsaidmorepeopleinhisculturerespectnatureeverbefore.Whenaskedaboutthemostseriousenvironmentalproblemintheworldtoday,hementionedthedamagedozonelayerandthepollutioninbigcities.

Edlearnedaboutenvironmentalproblematschool.AlotofclubsandsomeTVprogramspromoteenvironmentalsafely.Hebelievesthatstudentsshouldlearnmoreabouttheenvironmentatschool.Thentheycanbemoreawareofalltheproblemsandpreventmoreproblemsfromoccurring.

Whenaskedaboutanewlawhewouldliketocreatetohelptheenvironment,hesaidthatwhenpeoplethrowawaytheircigarettebutts,theyhavetothrowtheminthegarbagebin.Theyshouldbefinediftheythrowthemonthefloor.

Personally,Edissosetagainstlitteringthatheneverlitters.Healwaysthrowshistrashintothegarbagebin.

Task2:

AWorkQualificationTest

AccordingtoareportbyAustralianresearchers,theholeintheozonelayeroverAntarcticawillprobablystartclosingwithinfiveyears.Theysayitmaybecompletelyclosedwithinfiftyyears.TheozonelayerprotectstheEarthfromdangerousradiationfromthesun.TheholeintheozonelayerwasdiscoveredoverAntarcticaalmostthirtyyearsago.Atthetime,itwasthreetimesthesizeofAustralia.

Thereportfoundthatozone-destroyinggasesintheupperatmospherewereatorneartheirhighestlevelsintheyear2000.Butsincethen,therehasbeecontinuousprogressmadetowardtherecoveryoftheozonelayer.

Satelliteinformationshowedthatlevelsofozone-destroyinggasesintheatmosphereareslowlydecreasing.Atitslargestthisyear,theozoneholecoveredmorethan15millionsquarekilometers.Thatisdownfromayearlyaverageof23millionsquarekilometersoverthelastsixyears.

Chlorofluorocarbons,orCFCs,areresponsiblefordestroyingpartoftheozonelayeroverAntarctica.CFCshavebeenwidelyusedsincethe1930sincoolingdevicessuchasrefrigeratorsandairconditioners.CFCsremainintheatmosphereforyears.

Governmentscientistsaythelevelofchlorineintheatmosphereisdecreasingbecauseofrestrictionsontheuseofchlorofluorocarbons.ThechemicalswererestrictedunderaninternationalagreementcalledtheMontrealProtocolin1987.UndertheProtocol,developingcountriespromotedtocuttheiruseofchlorofluorocarbonsinhalfbytheyear2005.Theyalsoagreedtoaneighty-fivepercentcutbytheyear2oo7.

FTTFT

ForReference

1.ItwasthreetimesthesizeofAustralia.

2.TheypromisedtocuttheiruseofCFCsinthehalfby2005andagreedtoan85percentcutby2007.

Task3:

AMildEINino

TheEINinoweatherconditionhasreturned.However,officialattheUnitedStatesNationalWeatherServicesayEINinoisweakerthanusualthisyear.EINinoisachangeintheatmosphereoverthePacificOcean.Ithappenseveryfourorfiveyears.

Normally,watertemperaturesinthewesternPacificOceanincreaseneartheendoftheyear.ThiscausemorerainfallinIndonesia,Australiaandothernearbyplace.Atthesametime,coldoceanwatercauselessrainfallintheeasternPacificOcean,nearSouthAmerica.TheoppositehappensduringEINino.PacificOceantemperaturesincreasenearSouthAmerica,causingunusuallyhighamountsofrainfallthere.Incontrast,EINinocausesdryweatherinIndonesiaandAustralia.

AstrongEINinocanseverelyaffecttheweatherallovertheworld.ThelastpowerfulEINinowasin1997and1998.Itcausedmajorfloodsinmanyplaces.EINinoalsoledtoextremelydryweatherinsomeotherareas.Reportssaytheweathercausedthedeathsofabout24,000people.

SoexpertssayhavingaweakerEINinothisyearisgoodnews.MeteorologistssayrainfallhasbeenhigherthanusualinSouthAmerica.TheexpertssaytheeffectsofEINinowillbegintoshowinNovemberintheUnitedStates.Thenorthernstatesmayhaveawarmerwinter.But,scientistssayEINinowillnotbestrongenoughtopreventthisyear’spowerfulstormsintheAtlanticOcean.

1.Accordingtothepassage,howoftendoesEINinohappen?

2.WhatnormallyhappensinthewesternPacificOcean?

3.WhatdidtheEINinoin1997and1998cause?

4.WhatisNOTmentionedasaresultofthisyear’sEINino?

5.Whatisthecentralideaofthepassage?

Kes:

1C2.A3.D4.B5.C

PacificOceantemperaturesincreasenearSouthAmerica,causingunusuallyhighlevelofrainfallthere.DryweatherresultsinAustralia.

IV.SpeakingOut

MODEL1Ourglobeisindanger

John:

HowisyourGrandmagettingalongduringthisusuallyhotweather?

Nora:

Overthelastfewyears,Grannyhasbeencomplainingthatthehot,humidweatheriskillingher.Shebelievestheweatherhaschanged.

Whatshemeansistheclimate’slong-termconditions;

weatherrefersonlytoday-to-dayconditions.

Yeah,shesayssummerishotter,andwinterwetter.ButItriedtocomforther,saying,“It’sallinyourmind,Granny.”

She’sright,youknow.Thegreenhouseeffectdoesbringglobalwarmingandrain.

HowcanIexplainglobalwarmingandgreenhousegasestoa97-year-oldGranny?

Tellhertheearthnowislikearealgreenhousemadeofglasspanelsthatletinlightandtrapheat.

Thinkshe’llwanttoknowthatcarbonmonoxidefromearthmakesgreenhousegases?

Everybodyshouldknowwhatcauseglobalwarming;

otherwisewewon’tstopit.

I’lltellGrannynottoburnanymorewoodorcoal,ortousesprayonthehair.

OK,jokeaboutit,butitwon’tbesofunnywhenthepolaricecapsmeltandoceansrise.

NowYourTurn

SAMPLEDIALOG

A:

Howareyougettingalongduringthisusuallyhotweather?

B:

Notwellatall.Overthelastfewweeksthehot,humidweatheriskillingme.Ibelievetheclimatehaschanged.

Yeah,thesummerishotter,andwinterwetter.

Doyouknowwhyallthishashappened?

Thegreenhouseeffectsbringglobalwarmingandrain.

Whatdoyoumeanbygreenhouseeffects?

Theearthisnowlikearealgreenhousemadeofglasspanelsthatletlightinandtrapheat.Youknow,carbonmonoxidefromearthisagreenhousegas.

Isee.Everybodyshouldknowwhatcauseglobalwarming;

Theimportantthingisthathumanbeingsshouldtakestepstoreduceglobalwarming.

Whatcanwe