高二英语选修6 unit 4教案5.doc

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教案6人教选修6Unit4GlobalWarming
Extensivereadingandwriting
Teachinggoals
Abilitygoals
EnabletheSstotalkaboutenvironmentalpollutionandwriteacompositiononenvironmentalproblems.
Learningabilitygoals
HelptheSstowriteacompositiononenvironmentalproblems.
Teachingimportant&difficultpoints
HowtohelptheSstowriteacompositiononenvironmentalproblems.
Teachingaids
Acomputerandaprojector
Teachingprocedures
Step1Extensivereading
ReadTom’sessayaboutlitter.Makeasummaryforeachparagraph,andthenfillin
thefollowingtable.
FirstPara.Pointofview
SecondPara.FirstpointoftheargumentEvidence
ThirdPara.SecondpointoftheargumentEvidenceFourthPara.PointofviewStep2Discussion
Discusstheenvironmentalproblemsthatconcernpeoplemostingroupsoffour.
Listasmanyenvironmenttopicsaspossible,andthenwritethemonapieceofpaper.
Asamplelistofenvironmenttopics:
airpollution,noise,soilerosion,waterpollution,litterclassification,desertification,andmakegreenbyplantingtrees
Step3Writing
Chooseatopicfromthelistthatyoufeelstronglyabout.Makenotesonyourtopicusingheadingssimilartothetableinthereadingtask.Usethepassageasamodel.
Writingtips:
Step1:Writeoutthethesisstatement.(pointofview)
Step2:Writeoutthetopicsentenceofthefirstbodyparagraph.
Step3:Givethesupportingpointsanddetailsaboutthefirstsubtopic.
Step4:Writeoutthetopicsentenceofthesecondbodyparagraph.
Step5:Givethesupportingpointsanddetailsaboutthesecondsubtopic.(morebodyparagraphs...)
Asampleversion:
TheEnvironmentalEffectsofFossilFuels
Thereisnodoubtthatfossilfuelsbringalotofgoodtous.Butdoyouknowthatmanyoftheenvironmentalproblemsourcountryfacestodayresultfromourfossil
fueldependence.
Theenvironmentfacesairpollution,globalwarming,acidrain,andseveralothervery
seriousproblemsbecauseofouruseoffossilfuels.Overthelast150years,burningoffossilfuelshasresultedinmorethan25percentincreaseincarbondioxideinour
atmosphere.
Carbondioxideisoneofthemainfactorsinglobalwarmingwhichisnegatively
affectingeveryone.
Fossilfuelsalsoaffectwaterpollution,landpollution,andthermalpollution(