英语听力教程-第三册-答案

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1、Unit1IstheEarthBeingSqueezedDry?TrainingFocusDevelopingtheskillofoutliningisamajortrainingfocusforthisunit.Anditwillremainatrainingfocusformanyotherunitsinthisbook.Thecontentofthisunitcentersaroundsomeenvironmentalissuesincludingglobalwarming,deforestation,wat

2、ershortageandsoon.Thelisteningmaterialsaremainlyintheformsofinterviewsandreports.Pleasefocusonthespeaker’slineofthoughtwhilelistening.Youmayhaveaquicklookattheoutlinesintheexercisesbeforehandsoastoobtainsomecuesaboutwhattocome,wheretopinpointtheanswers,andhowt

3、oorganizetheinformation.Youshouldalsopayattentiontothespecialvalueofsomekeywordsintheoutlines,suchasproblems,effectsandactions.Thesekeywordshelpsingleoutandgroupthemostimportantpiecesofinformationintheutterances.PartIExerciseBListentotwoshortextractions.Writed

4、owntheenvironmentalissuesmentionedinthem.1.burningoftheforests/treeremoval(deforestation)/reductionoftheworld’srainforests2.globalwarming/greenhouseeffect/emissionsofCO2PartIIExerciseAListentothefirstpartofaninterview.Notedownthekeywordsinthenotescolumn.Thenan

5、swerthequestions.Key:1.MorepeoplemorefirewoodfewertreesMoredomesticanimalmoreplantsfeweravailableplantsmoredesertmovesouthdesertexpandingsouthnograss2.Growingcropsstabilizesoil,withoutthemthetopsoiljustblowsaway.Butifthereisn’tenoughrainthecropsdon’tgrow.3.Peo

6、pletrytogrowfoodtosupportthemselvesorthecreaterancheswherecattlecanberaised,ortogethardwoodforexport,ortomakewayforanironoremine.ExerciseBListentoamoreauthenticversionofthefirstpartoftheinterview.Completetheoutline.Outline(I)I.Environmentalproblemsindifferentc

7、ontinentsA.Africa1.SaharaDesertexpansion2.nograssforanimalstoeat(EastAfrica)B.NorthAmerica&mostofEurope1.situation—intensivefarming/agriculture2.potentialproblem—topsoilblowingawayC.SouthAmerica,CentralAfrica&SouthernAsia1.problem—tropicalforestsdestruction2.c

8、onsequencesa.soilthinunproductivewastelandb.animal/plantspeciesbecomingextinctc.climatechangeforthewholeworldPartIIIExerciseAListentothesecondinterview.Notedownthekeywordsinthenote