Unit 3整体课件1.ppt

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1、Unit3TeenagersshouldbeallowedtochoosetheirownclothesGoforitJ9SectionA1a-2cIwanttoplaywithmyfriends.Butmyfatherdoesn’tallow.Ithinkteenagersshouldbeallowedtogoouttoplaywiththeirfriends.Parentsshouldallowteenagerstogooutwiththeirfriends.Parentsshouldallowsix-

2、year-oldstodrive.Parentsshouldallowfifteen-year-oldstochoosetheirownclothes.Teenagersshouldbeallowedtogooutwiththeirfriends.Sixteen-year-oldsshouldbeallowedtodrive.Fifteen-year-oldsshouldbeallowedtochoosetheirownclothes.exercise同义句转换Theyshouldallowustohave

3、part-timejobs.____________________________.Weshouldallowchildrentospendtimewiththeirfriends._____________________________________.TheteachershouldallowAnnatofinishthepicture._____________________________________.Parentsshouldallowchildrentochoosetheirownfr

4、iends._____________________________________.grammar被动语态定义:表示主语是动作的承受者.构成:助动词be+及物动词的过去分词。助动词有人称、时态和数的变化。含有情态动词的被动语态：情态动词＋be＋及物动词的过去分词。用法：当我们不知道谁是动作的执行者，或者没有必要指出谁是动作的执行者，或者只强调动作的承受者时，要用被动语态。1.规则动词的过去分词：1)一般情况在动词原形后加-edwatch---watched2)以不发音e结尾的加-dpractice---

5、practiced3)以辅音加y结尾的，去y变i加-edstudy---studied4)以重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加-edstop---stopped2.不规则动词的过去分词：amisarebeenhavehashaddodonewritewrittengogoneThetelephone___________(invent)byBellin1876.Thetreesmay____________(plant)inspring.Teenagersshouldnot____

6、________(allow)todrive.English___________(speak)inCanada.Mathmust___________(study)well.We________(need)tolearnEnglish.exerciseFinishthesentencesListenandcheckwhatKathythinks.Circle:Agree”“disagree”or“Doesn’tknow”toshowwhatMollythinks.grammarfocusIthinkstu

7、dentsshouldbeallowedtodohomeworkwithfriends.Idisagree.Theytalkinsteadofdoinghomework.Sixteen-year-oldsshouldnotbeallowedtodrive.Iagree.Theyaren’tseriousenoughatthatage.Doyouthinksixteen-year-oldsshouldbeallowedtoworkatnight?No,Idon’t.homeworkMakealistofthi

8、ngsteenagersshouldandshouldnotbeallowedtodo.Discussyourlistwithyourpartner.A:Doyouthinkteenagersshould…B:Yes,Ido.Ithink…/No,Idon’t.Ithink…SectionA3a--SectionB2cDon’tgooutonschoolnights.Ihavealotofrulesatmyhou