《英语听力教程3》听力原文与问题详解Word格式.docx

《英语听力教程3》听力原文与问题详解Word格式.docx

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2:

globalwarming/greenhouseeffect/emissionsofCO2

PartIITheEarthatrisk（I）

A.Keys:

1.

a.Morepeoplemorefirewood----fewertrees

b.Moredomesticanimalsmoreplants—feweravailable

plants

a,b--Moredesert----movesouthdesrttexpanding

south----nograss

2.Growingcropsstabilizesoil,withoutthemthetopsoiljustblowsaway.Butifthereisn'

tenoughrainthecropsdon'

tgrow.

3.Peopletrytogrowfoodtosupportthemselvesortocreaterancheswherecattlecanberaised,ortogethardwoodforexport,ortomakewayforanironoremine

SaharaDesert

NorthAmerica&

mostofEurope

3:

topsoilblowingaway

4:

tropicalforestsdestruction

5:

animal/plantspeciesbecomingextinet

6:

climatechangeforthewholeworld

PartIIITheEarthatrisk（II）

Treeswouldholdrainfallintheirroots.Whenforestsinthehigherup-riverhavebeendestroyed,alltherainthatfallsinthemonsoonseasonflowsstraightintotheriverandstartstheflooding.

Heimpliesthatsomenationalgovernmentsjustconsidertheresultsoftheirpoliciesinthenearfuture,orjustthinkasfaraheadasthenextelection.

floodinginBangladesh

Actiontobetaken

populationcontrol

PartIVMoreaboutthetopic:

TheEffectsofGlobalWarming

Keys:

Warmingupoftheworld

Effectsofglobal

reducedpotentialforfoodproduction

changeofpatternsofhear-relatedfoodpoisoning,etc.

PartVDoyouknow…？

F2:

F3:

F4:

F5:

T

Dos1:

yourtowels2:

Cutout3:

awall-fire4:

fridge5:

waituntilyou'

veafullload

acompletemeal

Don'

ts7:

ironeverything8:

theironup9:

thekettle10:

tothebrim

11:

hotfood

Tapescript

B.

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

srainforests.Thegroupwarnsthatwithoutsuchactionsomeforestscouldbelostforever.

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

SimonDaryreports...

I（Interviewer）:

BrianCowlesistheproducerofanewseriesofdocumentariescalled"

TheEarthatRisk"

whichcanbeseenonChannel4laterthismonth.Eachprogramdealswithadifferentcontinent,doesn'

tit,Brian?

B（BrianCowles）:

That'

sright.WewenttoAmerica,bothNorthandSouthandthenwewentovertoAfricaandSouth-EastAsia.

I:

Andwhatdidyoufindineachofthesecontinents?

B:

StartingwithAfrica,ourfilmshowstheimpactofthepopulationonthe

environment.Generallyspeaking,thishascausedtheSaharaDeserttoexpand.It'

sa

bitofaviciouscirclewefind.Peoplecutdowntreesforfirewoodandtheirdomesticanimalseatalltheavailableplants—andsoconsequentlytheyhavetomovesouthastheSaharaDesertexpandsfurthersouth.Imean,soonthewholeofMaliwillbecomeadesert.AndinEastAfrica:

herethegrasslandsaresupportingtoomanyanimalsandtheresultis,ofcourse,there'

snogras—nothingfortheanimalstoeat.I:

Isee.AndthenextfilmdealswithNorthAmerica?

sright.IntheUSA,asyouknow,intensiveagriculturerequiresaplentiful

supplyofrainforthesecropstogrow,Imeanifthereisn'

tgrow.Andgrowingcropsstabilizesoil,withoutthemthetopsoiljustblowsaway.Thisisalsotrueforanyregionthatisintenselyfarmed—mostofEurope,forexample.

AndwhatdidyoufindinSouthAmerica?

InSouthAmerica（asinCentralAfricaandSouthernAsia）tropicalforestsare

beingcutdownatanalarmingrate.ThisisdonesothatpeoplecansupportthemselvesbygrowingfoodortocreaterancheswherecattlecanberaisedtobeexportedtoEuropeorAmericaastinnedmeat.Theproblemisthatthesoilissopoorthatonlyacoupleofharvestsare