英语人教版九年级全册情态动词的被动语态.pptx

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1、初中英语微课-含情态动词的被动语态宜昌市外国语初级中学刘雪琴16-year-oldsinAmericaareallowedtodrive.Doyouthinktheyshouldbeallowedtodrive?复习常见的情态动词有哪些？can/could能；可以may/might可能must必须should应该will/would将要；愿意haveto不得不need需要复习被动语态的结构是什么？bedone感知学生应该每天打扫教室。Studentsshouldcleantheclassroomeveryday.教室应该每天被（学生）打扫。Theclass

2、room(bythestudents)everyday.shouldbecleanedshouldbedone归纳情态动词被动语态的句型-肯定句Theclassroomshouldbecleanedeveryday.主语+情态动词+bedone练习let’spractice!Studentswillusethesetextbooksnextterm.Thesetextbookswillbeusednextterm.否定句Wecan’tfinishthehomeworkinanhour.Thehomeworkcan’tbefinishedinanhour.c

3、an’tbedone归纳haveatryThehomeworkcannotbefinishedinanhour.主语+情态动词+not+bedonePracticeTheymaynotinviteustotheparty.Wemaynotbeinvitedtotheparty.一般疑问句Hecanfixupthecomputer.Canhefixupthecomputer?Thecomputercanbefixedup.Canthecomputerbefixedup?can+主语+bedone？归纳haveatryCanthecomputerbefixed

4、up?情态动词+主语+bedone?PracticeTeenagersshouldbeallowedtomaketheirowndecisions.（变为一般疑问句）Shouldteenagersbeallowedtomaketheirowndecisions?Thesebookscanbetakenoutofthereadingroom.（变为一般疑问句）Canthesebooksbetakenoutofthereadingroom?Attention!注意啦！-Mustthistaskbefinishedatonce?-Yes,itmust.-No,i

5、tneedn’t.注意：含情态动词的被动语态的一般疑问句的回答，应保留原情态动词，但must表“必须”时，其否定回答应用needn’t，表示“不需要”theymustbesaved!Whatthingscan/must/shouldbedonetohelpsavetheendangeredanimals?Moretreesshouldbeplanted.Lawsmustbedevelopedtohelpsavethem.Peoplemustbeaskedtostopeatingthem.Thankyou!