视听说III原文和答案解析UnitWord文档下载推荐.docx

视听说III原文和答案解析UnitWord文档下载推荐.docx

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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.

Task2Riverpollution

Ifyouseedeadfishfloatingontheriverornoticethatthewaterisdiscoloredandsmelly,youknowtheriverhasbeenpolluted,andtherearefourmainpossiblecausesforit.

First,fertilizer.Iflargeamountsoffertilizerorfarmwastedrainintoariver,theconcentrationsofnitrateandphosphateinthewaterincreaseconsiderably.Algaeusethesesubstancestogrowrapidly,turningthewatergreen.Thismassivegrowthofalgaeleadstopollution.Whenthealgaedie,theyarebrokendownbytheactionofthebacteria,whichquicklymultiply,usingupalltheoxygeninthewaterandthereforecausingthedeathoffish.

Second,industrialwaste.Factoriessometimesdischargechemicalwasteintorivers.Examplesofsuchpollutantsincludecyanide,lead,copper,andmercury.Thesesubstancesmayenterthewaterinsuchhighconcentrationsthatfishandotheranimalsarekilledimmediately.Sometimesthepollutantsenterthefoodchainandaccumulateuntiltheyreachtoxiclevels,eventuallykillingfishandotheranimals.

Third,oilpollution.Ifoilentersaslow-movingriver,itformsarainbow-coloredfilmovertheentire

surface,preventingoxygenfromenteringthewater.

Fourth,warmwater.Industryoftenuseswaterforcoolingprocesses,sometimesdischarginglargequantitiesofwarmwaterbackintorivers.Ahighertemperatureofthewaterlowersthelevelofdissolvedoxygenandupsetsthebalanceoflifeinthewater.

Questionsandkey

1.Whatisthepassagemainlyabout?

D）Thecausesofriverpollution.

2.Whydoestheriverwaterturngreen?

A）Becausenitrateandphosphateinthewaterincrease.

3.Whatharmdoesindustrialwastecause?

B）Poisoning.

4.Whichofthefollowingistrueofoilpollution?

C）Itpreventsoxygenfromenteringthewater.

5.Whatharmcanwarmwaterinariverbring?

D）Lackofoxygen.

Task3:

CurbingCarbonemissions

Althoughitisnotaneasytask,ChinaisstrivingtofulfillthepromisetocutitscarbondioxideemissionsperunitofGDPby40to45percentinthenext10years.

ZhangGuobao,DirectoroftheNationalEnergyAdministration,said,"

Thegovernmentputsgreatemphasisonseekingharmoniousdevelopmentbetweencitiesandtheenvironment,andisreadjustingtheenergystructurebygivingprioritytothedevelopmentofcleanandlow-carbonenergies,includinghydroelectric,nuclear,wind,andsolarpower."

Governmentauthoritieshaveclosedsmall,coal-firedplantswithatotalcapacityof60.06millionkilowattsinthepastfouryears.Thisyear'

stargetofclosing10millionkilowattsofcapacitywillbeachievedbyAugust."

Wehavepromisedtotheinternationalcommunitythat15percentofourpowerwillbegeneratedfromnon-fossilsourcesby2020,"

DirectorZhangsaid.Atpresent,non-fossilenergyaccountsforonly7.8percent.

Chinaismakingeffortstoincreasetheproportionofcleanenergyinitstotalenergyconsumption.StatisticsshowthatChinainvestedUS$34.6billionincleanenergylastyear,exceedingtheUnitedStateswhichinvestedUS$18.6billion.Thus,Chinahasbecometheworldleaderingeneratingcleanenergy.Fiveyearsearlier,China'

sinvestmentincleanenergywasonlyUS$2.5billion.

However,China'

scarbonemissionreductiontargetcannotbeachievedeasily.Theshifttoalow-carboneconomymightbemetatacosttosociety.Forinstance,morethan400,000peoplewerelaidoffasaresultoftheshutdownofsmallcoal-firedpowerplantsinthepastfouryears.ManystudiesindicatethattheefforttocurbgreenhousegasemissionsmaydelayChina'

sdevelopment,affectpeople'

sincome,andleadtounemployment.

l.Whatisthepassagemainlyabout?

D）Cuttingcarbondioxideemissions:

China'

sachievementsandproblems.

2.FromfouryearsagountilAugustthisyear,howmanykilowattsofcoal-firedplantcapacitywill

havebeenclosed?

D）Morethan70million.

3.By2020,whatwillbetheproportionofnon-fossilenergyinthetotalpowerinChina?

A）15%.

4.WhichofthefollowingistrueoftheinvestmentbyChinaandtheUnitedStatesincleanenergylastyear?

B）China'

sinvestmentwasalmosttwiceaslargeastheUnitedStates'

.

5.WhichofthefollowingisNOTmentionedinthepassageasaproblemarisingfromcurbinggreenhousegasemissions?

C）Causingmorestrikes.

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.

MODEL2Rainforestswillsoonbeonlyamemory.

Susan:

Hey