完整word版《英语听力教程3》听力原文与答案.docx

完整word版《英语听力教程3》听力原文与答案.docx

《完整word版《英语听力教程3》听力原文与答案.docx》由会员分享，可在线阅读，更多相关《完整word版《英语听力教程3》听力原文与答案.docx（41页珍藏版）》请在冰点文库上搜索。

完整word版《英语听力教程3》听力原文与答案

《英语听力教程3》答案与听力材料

UNIT1

PartIGettingready

A.

B.Keys:

1:

burningoftheforests/treeremoval（deforestation）/reductionoftheworld'srainforests

2:

globalwarming/greenhouseeffect/emissionsofCO2

PartIITheEarthatrisk（I）

A.Keys:

1.

a.Morepeople--------morefirewood----fewertrees

b.Moredomesticanimals------moreplants-----feweravailableplants

a,b--Moredesert----movesouth-----desrttexpandingsouth----nograss

2.Growingcropsstabilizesoil,withoutthemthetopsoiljustblowsaway.Butifthereisn'tenoughrainthecropsdon'tgrow.

3.Peopletrytogrowfoodtosupportthemselvesortocreaterancheswherecattlecanberaised,ortogethardwoodforexport,ortomakewayforanironoremine

B.Keys:

1:

SaharaDesert

2:

NorthAmerica&mostofEurope

3:

topsoilblowingaway

4:

tropicalforestsdestruction

5:

animal/plantspeciesbecomingextinct

6:

climatechangeforthewholeworld

PartIIITheEarthatrisk（II）

A.Keys:

1:

Treeswouldholdrainfallintheirroots.Whenforestsinthehigherup-riverhavebeendestroyed,alltherainthatfallsinthemonsoonseasonflowsstraightintotheriverandstartstheflooding.

2:

Heimpliesthatsomenationalgovernmentsjustconsidertheresultsoftheirpoliciesinthenearfuture,orjustthinkasfaraheadasthenextelection.

B.Keys:

1:

floodinginBangladesh

2:

Actiontobetaken

3:

populationcontrol

PartIVMoreaboutthetopic:

TheEffectsofGlobalWarming

Keys:

1:

Warmingupoftheworld

2:

Effectsofglobal

3:

reducedpotentialforfoodproduction

4:

changeofpatternsofhear-relatedfoodpoisoning,etc.

PartVDoyouknow…?

A.Keys:

1:

F2:

F3:

F4:

F5:

T

B.Keys:

Dos1:

yourtowels2:

Cutout3:

awall-fire4:

fridge5:

waituntilyou'veafullload

6:

acompletemeal

Don’ts7:

ironeverything8:

theironup9:

thekettle10:

tothebrim

11:

hotfood

Tapescript

PartIGettingready

A.

B.

1.TheAmazonforestsaredisappearingbecauseofincreasedburningandtreeremoval.InSeptember,satellitepicturesshowedmorethan20000firesburningintheAmazon.Expertssaymostofthesefiresweresetbyfarmers.Thefarmerswereattemptingtoclearlandtogrowcrops.TheWorldWildlifeFundsaysanotherseriousproblemisthattoomanytreesintheAmazonrainforestarebeingcutdown.TheWorldWildlifeFundsaysthefiresshowtheneedforurgentinternationalactiontoprotecttheworld'srainforests.Thegroupwarnsthatwithoutsuchactionsomeforestscouldbelostforever.

2.EnvironmentalissuesswelltothefullinBerlinthisweek,fortheUNspongsoredconferenceonglobalwarmingandclimatechangeisthefirstsuchmeetingsincetheRiosummitthreeyearsago.WithscientistsandgovernmentsnowgenerallyreadytoacceptthattheearthclimateisbeingaffectedbyemissionsofCO2andothergreenhousegases,overahundredcountriesaresendingdelegations.ButhowmuchprogresshasbeenmadeimplementingthegreenhousegasreductiontargetagreedonatRio?

SimonDaryreports...

PartIITheEarthatrisk（I）

A.

I（Interviewer）:

BrianCowlesistheproducerofanewseriesofdocumentariescalled"TheEarthatRisk"whichcanbeseenonChannel4laterthismonth.Eachprogramdealswithadifferentcontinent,doesn'tit,Brian?

B（BrianCowles）:

That'sright.WewenttoAmerica,bothNorthandSouthandthenwewentovertoAfricaandSouth-EastAsia.

I:

Andwhatdidyoufindineachofthesecontinents?

B:

StartingwithAfrica,ourfilmshowstheimpactofthepopulationontheenvironment.Generallyspeaking,thishascausedtheSaharaDeserttoexpand.It'sabitofaviciouscirclewefind.Peoplecutdowntreesforfirewoodandtheirdomesticanimalseatalltheavailableplants—andsoconsequentlytheyhavetomovesouthastheSaharaDesertexpandsfurthersouth.Imean,soonthewholeofMaliwillbecomeadesert.AndinEastAfrica:

herethegrasslandsaresupportingtoomanyanimalsandtheresultis,ofcourse,there'snograss—nothingfortheanimalstoeat.

I:

Isee.AndthenextfilmdealswithNorthAmerica?

B:

That'sright.IntheUSA,asyouknow,intensiveagriculturerequiresaplentifulsupplyofrainforthesecropstogrow,Imeanifthereisn'tenoughrainthecropsdon'tgrow.Andgrowingcropsstabilizesoil,withoutthemthetopsoiljustblowsaway.Thisisalsotrueforanyregionthatisintenselyfarmed—mostofEurope,forexample.

I:

AndwhatdidyoufindinSouthAmerica?

B:

InSouthAmerica（asinCentralAfricaandSouthernAsia）tropicalforestsarebeingcutdownatanalarmingrate.ThisisdonesothatpeoplecansupportthemselvesbygrowingfoodortocreaterancheswherecattlecanberaisedtobeexportedtoEuropeorAmericaastinnedmeat.Theproblemisthatthesoilissopoorthatonlyacoupleofharvestsarepossiblebeforethisverythinsoilbecomesexhausted.Anditcan'tbefedwithfertilizerslikeagriculturallandinEurope.

Forexample,inBrazilin1982anareaofjunglethesizeofBritainandFrancecombinedwasdestroyedtomakewayforanironoremine.HugenumbersoftreesarebeingcutdownforexportsashardwoodtoJapan,Europe,USAtomakethingslikeluxuryfurniture.Theseforestscan'tbereplaced—theforestsoilisthinandunproductiveandinjustafewyears,ajunglehasbecomeawasteland.Tropicalforestscontainrareplants（whichwecanuseformedicines,forexample）andanimals—oneanimalorplantspeciesbecomesextincteveryhalfhour.Theseforesttreesalsohaveworldwideeffects.Youknow,theyconvertcarbondioxideintooxygen.Theconsequenceofdestroyingforestsisnotonlythattheclimateofthatregionchanges（becausethereislessrainfall）butthischangeaffectsthewholeworld.Imean,overhalftheworld'srainforesthasbeencutdownthiscentury.

PartIIITheEarthatrisk（II）

A.

I:

So,Brian,wouldyouagreethatwhatwegenerallythinkofasnaturaldisastersareinfactman-made?

B:

Yes,byandlarge.Imean,obviouslynothurricanesorearthquakes,buttakeflooding,forexample.Practicallyeveryyear,thewholeofBangladeshisfloodedandthisisgettingworse.Youknow,thecauseisthatforestshavebeencutdownupinNepalandIndia,Imeanhigherup-riverintheHimalayas.Treeswouldholdrainfallintheirroots,butifthey'vebeencutdownalltherainthatfallsinthemonsoonseasonflowssraightintotheriverGangesandfloodsthewholecountry.ThereasonforfloodinginSudanisthesame—theforestshigheruptheBlueNileinEthiopiahavebeendestroyedtoo.

I:

Well,thisallsoundsterriblydepressing.Um...Whatistobedone?

Imean,cananythingbedone,infact?

B:

Yes,ofcourseitcan.First,thenationalgovernmentshavetobeforward-lookingandconsidertheresultsoftheirpoliciesintenortwentyyears,notjustthinkasfaraheadasthenextelection.Somehow,allthecountriesintheworldhavetoworktogetheronaninternationalbasis.Secondly,thepopulationhastobecontrolledinsomeway:

therearetoomanypeopletryingtoliveofftoolittleland.Thirdly,wedon'tneedtropicalhardwoodtomakeourfurniture—it'saluxurypeopleintheWestmustdowithout.Softwoodsarejustasgood,lessexpensiveandcanbeproducedonenvironment-friendly"treefarms",wheretreesarereplacedatthesameratethattheyarecutdown.

I:

And,presumably,educationisimportantaswell.Peoplemustbeeducatedtorealizetheconsequencesoftheiractions?

B:

Yes,ofcourse.

I:

Well,thankyou,Brian

B.

I:

So,Brian,wouldyouagreethatwhatwegenerallythinkofas...er...aser...naturaldisastersareinfactman-made?

B:

Yes,byandlarge...er...Imean,obviouslynothurricanesorearthquakes,buttakeflooding,forexample.Imean,practicallyeveryyear,thewholeofBangladeshisfloodedandthisisgettingworse.Youknow,thecauseisthatforestshavebeencutdownupinNepalandIndia...Imean...higherup-riverintheHimalayas.Trees...er...wouldholdrainfallintheirroots,butifthey'vebeencutdownalltherainthatfallsinthemonsoonseasonflowsstraightintotheriverGangesandfloodsthewholecountry.ThereasonforfloodinginSudanisthesame—theforestshigheruptheBlueNileinEthiopiahavebeendestroyedtoo.

I:

Well,thisallsoundsterriblydepressing.Um...whatistobedone?

Imean,cananythingbedone,infact?

B:

Yes,ofcourseitcan...er...first,thenationalgovernmentshavetobeforward-lookingandconsidertheresultsoftheirpoliciesintenortwentyyears,notjustthinkasfaraheadasthenextelection.Somehow,allthecountriesintheworldhavetoworktogetheronaninternationalbasis.Secondly,thepopulationhastobecontrolledinsomeway:

therearetoomanypeopletryingtoliveofftoolittleland.Thirdly,wedon'tneedtropicalhardwoodtomakeourfurniture—it'saluxurypeopleintheWestmustdowithout.Softwoodsarejustasgood,lessexpensiveandcanbeproducedonenvironment-friendly"treefarms",wheretreesarereplacedatthesameratethattheyarecutdown.

I:

And,presumably,educationisimportantaswell.Peoplemustbeeducatedtorealizetheconsequences...um...oftheiractions?

B:

Yes,yesofcourse.

I:

Well,thankyou,Brian.

PartIVMoreaboutthetopic:

TheEffectsofGlobalWarming

Theworldiswarmingup.Weknowthisbecauseaveragetemperaturesarethehighestsincescientistsstartedmeasuringthem600yearsago.Theincreaseisabout0.2℃everyyear.Thismayseemveryslight,butweknowthatslightchangesintemperaturecanhaveabigeffectonotherthings.Mostscientistsnowbelievethisglobalwarmingisduetohumanactivity.

JeffJenkinsisheadofBritain'sCli