Unit7 SectionA Grammar Focus.ppt

Teenagersshouldbeallowedtochoosetheirownclothes.学习目标：communityTask一根据课本内容，完成下列句子。3.你认为应该鼓励青少年去自己做决定吗？Doyouthinkteenagers_______________tomaketheirowndecisions?4.不，我不认同这个。青少年还太小不能自己做决定。No,Idon’tagreewiththis.Teenagersare___________maketheirowndecisions.5.不应该允许青少年去做兼职。Teenagers__________________tohavepart-timejobs.6.我不同意。他们可以从工作当中学到很多。Idisagree.Theycan______alot___working.7.你认为如果不用闪光灯的话可以允许我们拍照吗？Doyouthinkwe______________totakephotosifwedon’tuseaflash.8.如果不用闪光灯的话，那么拍照是可以的。Ifyoudon’tuseaflash,thenit______OK.◆温故◆在英语中，动词有两种语态，即主动语态和被动语态。主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。在前面两个单元我们已经学习了一般现在时的被动语态和一般过去时的被动语态，它们的结构为：时态观察例句中含情态动词被动语态的各种形式，然后补全结论中所缺的内容。【结论】A.含有情态动词的被动语态的结构为：情态动词+____+及物动词的_____。B.含有情态动词的主动语态变为被动语态时，要把主动语态的_____变成被动语态的主语。C.变为否定句时只需要在情态动词后加________。D.变为一般疑问句时只需把________提到句首。情态动词表推测时，常与be连用，具体含义如下(语气由强到弱)。Ⅰ.选择最佳答案。1.Youngtreesshould_____everyyear.A.beplantedB.plantedC.plant3.ThankstotheInternet,differentkindsofinformation________inashorttime.A.canbelearnedB.hasbeenlearnedC.canlearnD.haslearned4.—HowoftendoIneedtofeedthedog?—It___________foodeveryday,oritwillbehungry.A.mustgiveB.mustbegiveC.mustbegivenD.mustbegaveⅡ.按要求完成下列各句。1.Wemustdotheworkrightnow.（改为被动语态）_____________________rightnow.2.Teenagersshouldbeallowedtogooutwiththeirfriendsonschoolnights.（改为否定句）Teenagers___________________togooutwiththeirfriendsonschoolnights.Rewritethesentencesaccordingtotheexample.1.Youmustcleanyourbedroomeveryday.Yourbedroommustbecleanedeveryday.2.Parentsshouldencourageteenagerstodosocialworkfortheircommunity.Teenagers_____________________________________________________________________________________________.3.CanLucydoherhomeworktomorrowinstead?Can__________________________________________________________________?4.DoyouthinkwemustkeepteenagersawayfromtheInternet?Doyouthinkteenagers__________________________________?5.Parentsshouldgiveteenagerschancestomaketheirowndecisions.Teenagers____________________________________________________________________.Shouldteenagers________(ask)to