视听说III原文和答案解析Unit.docx
- 文档编号:12143961
- 上传时间:2023-04-17
- 格式:DOCX
- 页数:14
- 大小:24.84KB
视听说III原文和答案解析Unit.docx
《视听说III原文和答案解析Unit.docx》由会员分享,可在线阅读,更多相关《视听说III原文和答案解析Unit.docx(14页珍藏版)》请在冰豆网上搜索。
视听说III原文和答案解析Unit
VLSB3 Uint2
II.BasicListeningPractice
1.Script
M:
Nowwehavesatelliteandhigh-poweredmicroscope,it’seasytothinkweknoweverythingabouttheworld;butwestilldon’tunderstandEINino.
W:
Right.ScientistsallovertheworldoverareevenuncertainaboutthecauseofthewarmPacificcurrentthatbringsstormsordrought—themysteriousEINino.
Q:
Whichofthefollowingistrueaccordingtotheconversation?
2.Script
M:
Everyoneistalkingaboutenvironmentalproblem:
acidrain,thegreenhouseeffect,holesintheozonelayer.Weshouldthinkpositively.Whatcanwedotoimprovethings?
W:
Iagree.Wecoulddoalotmoretoharnessthesun’senergyforheatingandlightinginourhomes.InJapan43,000solarroofswereinstalledin2002.
Q:
Howdothemanandthewomanviewtheenvironment?
3.Script
W:
WelivedinBeijingsomeyearsago.Itwasalwaysdifficulttokeepthehousecleanwithwindfromthenorthblowingsandfromthedesertatus.
M:
That’swhytheChinesegovernmenthasbeenencouragingpeopletoplanttreesalongtheedgesoftheGobiDesert.Nowthosetreesactaswindbarriers.
Q:
Whatdidthegovernmentencouragepeopletodo?
4.Script
M:
ManyoldrefrigeratorsandcarsareenvironmentalhazardsbecausetheycontainCFCsthatdestroytheozonelayer.
W:
Yes,butgovernmentororganizationsarehelpingpeopletosafelydisposeofoldrefrigeratorsor,inthecaseofcars,toupgradetheirairconditioning.
Q:
Whataregovernmentdepartmentshelpingpeopletodo?
5.Script
M:
Hey,that’sanaerosolsprayyou’reusingonyourhair!
Buildabomborsetfiretotheapartmenttokillusquicklyinsteadofmakingholesintheozone,sowedieofcancer.
W:
Coolit,man.Thisspraydoesn’tcontainCFCs.Andyou’dbetterreadalittlemore.In2003theholeintheozonelayershrankby20percent,sothere’snoreasontopanic.
Q:
Whatdoesthemanmean?
Keys:
1.B2.D3.A4.A5.C
III.ListeningIn
Task1:
Weshouldhaveproperrespectfornature!
Script
Martha:
Doyouthinkmostpeopleinyourculturerespectnature?
Ed:
Ithinkso.Umm…morenowthanbefore.
Martha:
Whatdoyouthinkisthemostseriousenvironmentproblemintheworldtoday?
Ed:
Today…Ithinkdamagetotheozonelayerisabigproblem;andanotherproblemispollutioninbigcitiesandthingslikethat.
Martha:
Howdoyoulearnaboutenvironmentalproblems?
Ed:
Umm…throughschool.Alotofclubspromoteenvironmentalsafely,andsomeTVprograms,too.Theytalkaboutenvironmentalsafelyandstufflikethat.
Martha:
Doyouthinkstudentsshouldlearnmoreabouttheenvironmentatschool?
Ed:
Ithinkso.So,astheygrowolder,theycanbemoreawareofalltheproblemsthataregoingon.Andalsotopreventmoreproblemsfromoccurring.
Martha:
Ifyoucouldcreateanewlawtohelptheenvironment,whatwoulditbe?
Ed:
Anewlawfortheenvironment?
Umm…I’dprobablysaythatwhenpeoplethrowawaytheircigarettebutts,theyhavetothrowthemintothegarbagebin,notjustthrowthemeverywherebecauseit’sjustlitteringandIhatethat.Sotheyshouldbefinediftheythrowthemonthefloorontheground.
Martha:
That’sagoodidea.Whatdoyoupersonallydotohelpprotecttheenvironment?
Ed:
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
Script
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.
Questionsandkey
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.
John:
Whatshemeansistheclimate’slong-termconditions;weatherrefersonlytoday-to-dayconditions.
Nora:
Yeah,shesayssummerishotter,andwinterwetter.ButItriedtocomforther,saying,“It’sallinyourmind,Granny.”
John:
She’sright,youknow.Thegreenhouseeffectdoesbringglobalwarmingandrain.
Nora:
HowcanIexplainglobalwarmingandgreenhousegasestoa97-year-oldGranny?
John:
Tellhertheearthnowislikearealgreenhousemadeofglasspanelsthatletinlightandtrapheat.
Nora:
Thinkshe’llwanttoknowthatcarbonmonoxidefromearthmakesgreenhousegases?
John:
Everybodyshouldknowwhatcauseglobalwarming;otherwisewewon’tstopit.
Nora:
I’lltellGrannynottoburnanymorewoodorcoal,ortousesprayonthehair.
John:
OK,jokeaboutit,butitwon’tbesofunnywhenthepolaricecapsmeltandoceansrise.
MODEL2Rainforestswillsoonbeonlyamemory.
Script
Susan:
Hey
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 视听 III 原文 答案 解析 Unit