英语专业生英语听力教程3听力原文(第二版_张民伦主编)

《英语专业生英语听力教程3听力原文(第二版_张民伦主编)》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、大学英语听力教程第三册（第二版）听力原文大学英语听力教程第三册（第二版）听力原文UNIT1Part1BTheAmazonforestsaredisappearingbecauseofincreasedburningandtreeremoval.InSeptember,satellitepicturesshowedmorethan20000firesburningintheAmazon.Expertssaymostofthesefiresweresetbyfarmers.Thefarmerswereattemptingto

2、clearlandtogrowcrops.TheWorldWildlifeFundsaysanotherseriousproblemisthattoomanytreesintheAmazonrainforestarebeingcutdown.TheWorldWildlifeFundsaysthefiresshowtheneedforurgentinternationalactiontoprotecttheworld'srainforests.Thegroupwarnsthatwithoutsuchactionsomefo

3、restscouldbelostforever.2.EnvironmentalissuesswelltothefullinBerlinthisweek,fortheUNspongsoredconferenceonglobalwarmingandclimatechangeisthefirstsuchmeetingsincetheRiosummitthreeyearsago.Withscientistsandgovernmentsnowgenerallyreadytoacceptthattheearthclimateisbe

4、ingaffectedbyemissionsofCO2andothergreenhousegases,overahundredcountriesaresendingdelegations.ButhowmuchprogresshasbeenmadeimplementingthegreenhousegasreductiontargetagreedonatRio?SimonDaryreports...Part2TheearthatriskI:BrianCowlesistheproducerofanewseriesofdocum

5、entariescalled"TheEarthatRisk"whichcanbeseenonChannel4laterthismonth.Eachprogramdealswithadifferentcontinent,doesn'tit,Brian?B:That'sright.WewenttoAmerica,bothNorthandSouthandthenwewentovertoAfricaandSouth-EastAsia.I:Andwhatdidyoufindineachofthesecontinents?B:Sta

6、rtingwithAfrica,ourfilmshowstheimpactofthepopulationontheenvironment.Generallyspeaking,thishascausedtheSaharaDeserttoexpand.It'sabitofaviciouscirclewefind.Peoplecutdowntreesforfirewoodandtheirdomesticanimalseatalltheavailableplants—andsoconsequentlytheyhavetomove

7、southastheSaharaDesertexpandsfurthersouth.Imean,soonthewholeofMaliwillbecomeadesert.AndinEastAfrica:herethegrasslandsaresupportingtoomanyanimalsandtheresultis,ofcourse,there'snograss—nothingfortheanimalstoeat.I:Isee.AndthenextfilmdealswithNorthAmerica?B:That'srig

8、ht.IntheUSA,asyouknow,intensiveagriculturerequiresaplentifulsupplyofrainforthesecropstogrow,Imeanifthereisn'tenoughrainthecropsdon'tgrow.Andgrowingcropsstabili