大学英语听力3第一单元 文本打印范本.docx
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大学英语听力3第一单元 文本打印范本.docx
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大学英语听力3第一单元文本打印范本
Part1B
1.
TheAmazonforestsaredisappearingbecauseofincreasedburningandtreeremoval.InSeptember,satellitepicturesshowedmorethan20000firesburningintheAmazon.Expertssaymostofthesefiresweresetbyfarmers.Thefarmerswereattemptingtoclearlandtogrowcrops.TheWorldWildlifeFundsaysanotherseriousproblemisthattoomanytreesintheAmazonrainforestarebeingcutdown.TheWorldWildlifeFundsaysthefiresshowtheneedforurgentinternationalactiontoprotecttheworld'srainforests.Thegroupwarnsthatwithoutsuchactionsomeforestscouldbelostforever.
2.
EnvironmentalissuesswelltothefullinBerlinthisweek,fortheUNspongsoredconferenceonglobalwarmingandclimatechangeisthefirstsuchmeetingsincetheRiosummitthreeyearsago.WithscientistsandgovernmentsnowgenerallyreadytoacceptthattheearthclimateisbeingaffectedbyemissionsofCO2andothergreenhousegases,overahundredcountriesaresendingdelegations.ButhowmuchprogresshasbeenmadeimplementingthegreenhousegasreductiontargetagreedonatRio?
SimonDaryreports...
Part2
A
I-Interviewer
B-BrianCowles
I:
BrianCowlesistheproducerofanewseriesofdocumentariescalled"TheEarthatRisk"whichcanbeseenonChannel4laterthismonth.Eachprogramdealswithadifferentcontinent,doesn'tit,Brian?
B:
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.
B
I-Interviewer
B-BrianCowles
I:
BrianCowlesistheproducerofanewseriesofdocumentariescalled"TheEarthatRisk"whichcanbeseenonChannel4laterthismonth.Eachprogramdealswithadifferentcontinent,doesn'tit,Brian?
B:
That'sright,yes,wewentto...er...wewenttoAmerica,bothNorthandSouthandthenwewentovertoAfricaandSouth-EastAsia.
I:
Andwhatdidyoufindineachofthesecontinents?
B:
Well...er...startingwith...er...Africa,ourfilmshowstheimpactofthepopulationontheenvironment.Generallyspeaking,thishascausedtheSaharaDeserttoexpand.It'sabitofaviciouscircle...er...wefind,peoplecutdowntreesforfirewoodandtheirdomesticanimalseatalltheavailableplants—andsoconsequentlytheyhavetomovesouthastheSaharaDesertexpandsfurthersouth.Imean,soonthewholeofMaliwillbecomeadesert.And...er...inEastAfrica:
herethegrasslandsaresupportingtoomanyanimalsandtheresultis,ofcourse,there'snograss—nothingfortheanimalstoeat.
I:
Mm,yes,Isee.Um...andthe...thenextfilmdealswithNorthAmerica?
B:
That'sright.Inthe...er...USA,asyouknow,intensiveagriculturerequiresaplentifulsupplyofrainforthesecropstogrow,Imeanifthereisn'tenoughrainthecropsdon'tgrow.Andgrowingcropsstabilizesoil,withoutthemthetopsoiljust...itjustblowsaway.Imean,thisisalsotrueforanyregionthatisintenselyfarmed—mostofEurope,forexample.
I:
AndwhatdidyoufindinSouthAmerica?
B:
InSouthAmerica(a...asinCentralAfricaandSouthernAsia)tropicalforestsarebeingcutdownatanalarmingrate.Th...thisisdonesothatpeoplecansupportthemselvesbygrowingfoodortocreaterancheswherecattlecanberaisedtoexp...tobeexportedtoEuropeorAmericaastinnedmeat.Theproblemisthatthes...thesoilissopoorthat...um...thatonlyacoupleofharvestsarepossiblebeforethisverythinsoilbecomesexhausted.Anditcan'tbefedwithfertilizerslikeagriculturallandinEurope.
Um...forexample,inBrazilin1982anareaofjunglethesizeofBritainandFrancecombinedwasdestroyedtomakewayforanironoremine.Imean,hugenumbersoftreesarebeingcutdownforexportashardwoodtoJapan,Europe,USA...Imean...tomakethingslikeluxuryfurniture.Theseforestscan't...er...theycan'tbereplaced—theforestsoilisthinandunproductiveandinjustafewyears,a...ajunglehasbecomeawasteland.Tropicalforestscontainrareplants(which...er...wecanuseformedicines,forexample)andanimals—oneanimalorplantspeciesbecomesextincteveryhalfhour.These...er...foresttrees...Imean...alsohaveworldwideeffects.Youknow,theyconvertcarbondioxideintooxygen.Theconsequenceofdestroyingforestsisnotonlythattheclimateofthatregionchanges(becausethereislessrainfall)butthischangeaffectsthewholeworld.Imean,overhalftheworld'srainforesthasbeencutdownthiscentury.
Part3
A
I-Interviewer
B-BrianCowles
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-Interviewer
B-BrianCowles
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,thena
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