高中英语 Module 4《Sandstorms in Asia-Listening》学案 外研版必修3.doc

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1、Module4《SandstormsinAsia》ListeningStep1:Pre-listeningActivity1:Matchthewordswiththedefinitions.atmospherecarbondioxidechemicaldamage(v.&n.)environmentgarbagemeltpollutionrecyclethePoles1.theairaroundtheearthatmosphere2.tohaveabadeffectonsomeoneorsomethingda

2、mage3.asubstanceusedinchemistrychemical4.thenaturalworld—theland,air,water,plantsandanimalsenvironment5.tochangefromsolidtoliquid,e.g.icebecomeswatermelt6.totreatsomethingsothatwecanuseagainrecycle7.oneofthegasesintheaircarbondioxide8.themostnorthernandsout

3、hernpointsonearththePoles9.rubbishgarbage10.damagetotheenvironmentbecauseofchemicalspollutionStep2:While-listeningActivity2:Listentoanenvironmentalexpert’sspeech.Putthetopicsbelowintheorderyouhearthem.A.garbageB.treesC.pollutionfromcarsD.meltingicesatthePol

4、esE.theclimateKeys:EDCBAActivity3:Nowlistenagain.Answerthequestions.1.Whatisthemosturgentproblemofall?Theclimate.2.WhatexamplesofcoastalcitiesdoesDavidgive?NewYorkandShanghai3.Whatisdescribedasamajorproblem?Carbondioxidefromcars.4.Whathappenswhenwecutdownal

5、otoftrees?Thereislessoxygenandmorecarbondioxideintheatmosphere.Activity4:Listenagain.Completethesesentences.1.Asaresult,theiceatthePolesisbeginningtomelt.2.Theseamayriseandcitiesonthecoastmaydisappearunderwater.3.Toomuchcarbondioxidepollutestheatmosphere.4.

6、Treestakeincarbondioxideandgiveoutoxygen.5.Weburngarbageandpollutetheatmosphere.6.Instead,weshouldrecyclethegarbage.Activity5:Discussion.1)Listentothetapeandfillintheblanks.Whyistheclimategettingwarmer?It’spollutionthat’stheproblem.Gasesfromcarsentertheatmo

7、sphereandstopthesun’sheatfromleavingtheatmosphere.Andfactoriesgiveoutchemicalsthat2dothesamething.Soasaresult,theclimateisgettingwarmer.2)Discussion:Ifwecutdownallthetrees,whatwouldhappen?Step3:Post-listening1)Listentoasongandtrytocompletethelyrics.Colorsof

8、theWindVanessaWilliamsTherainstormandtheriveraremybrothersTheheronandtheotheraremyfriendsAndweareallconnectedtoeachotherInacircle,inahoopthatneverendsHaveyoueverheardthewolfcrytothebluecornmoonOrletthe