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1、Unit2Topic2AlltheseproblemsareveryseriousTeachingAimsa.Wordsandexpressionsasaresult,behavior,inthebeginning,daybyday,dieoutsand,cutdown,changeinto,prevent,prevent…from,humanbeing,although,law,turnoffonearth,period,millionsof,takeaway,rise,level,refert
2、ob.Patterns:.(1)Noneofuslikespollution.(2)Don’tspitanywhereinpublic.(3)Everyoneshouldcareforwildanimalsandplantmoretrees.(4)Weshoulddoeverythingwecantoprotecttheenvironment.c.Grammar:LearntheindefinitepronounandadverbTeachingfocus:Learntheindefinitepr
3、onounandadverbAboutthetime；Thistopicneeds5periods.总第22课时Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionATeachingaimsanddemands1.Learnanewwordandsomephrases:asaresult,behavior,inthebeginning,daybyday,dieout2.Learnsomeusefulsentences:(1)
4、Asaresult,airpollutionhasbecomeaseriousproblem.(2)Humanshavecometorealizetheimportanceofprotectinganimals.3.Learntheindefinitepronounandadverb:(1)Noneofuslikespollution.(2)Don’tspitanywhereinpublic.(3)Everyoneshouldcareforwildanimalsandplantmoretrees.
5、Teachingfocus:Learntheindefinitepronounandadverb:Teachingprocedure:Step1ReviewT:Itistoodirtyandthereistoomuchheavysmokeoutside.Ican’tstandit.Ss:Isitairpollution?T:Yes,itis.Step2Presentation1.T:Doyouliketheenvironmenthere?Ss:No,wedon’t.T:Why?Ss:Because
6、thereistoomuchsmoke.T:Yes.Weshouldstopburningcoal.ItissaidthatChinahasbecometheworld’slargestproduceranduserofcoal.Asaresult,airpollutionhasbecomeaseriousproblem.T:Nowourgovernmenthasrealizedtheimportanceofprotectingtheenvironment.T:Weshoulddosomethin
7、gusefultoprotecttheenvironment,too.2.Listentothetape,andanswerthequestionsonthesmallblackboard.3.Read1aagain,andtrytofindtheindefinitepronounsoradverbs.Step3Consolidationworkinpairs.Trytomakeanewdialogwithyourpartneraccordingtothedialogin1a.ThenI’llas
8、ksomepairstoactoutyourowndialoginthefrontoftheclassroom.S1:What’sitabout?S2:It’sabouttheenvironmentintheworld.Itsaysthatourenvironmentisgettingworseandworse.Andthepollutionhasbeenthemostseriousproblemintheworld.S1:Yes.Butit’sluckythatlotsofgov
