情态动词的被动语态精选PPT.ppt

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1、关于情态动词的被动语态第1页，讲稿共11张，创作于星期日 n语态的种类：和 。n主动语态：表示主语是 。n 被动语态：表示主语是 。n被动语态结构：be+p.p.(动词的过去分词)n情态动词的被动语态：情态动词+be+p.pn问题：情态动词+be+p.p.这一结构怎么进行句型转换？主动语态被动语态 情态动词被动语态动作的执行者动作的执行者动作的承受者动作的承受者第2页，讲稿共11张，创作于星期日含有情态动词的句子进行句型转换时只针对 ，要么在后 ,把 提前。n例子:1We should allow teenagers to watch n 主语 谓语动词 宾语nTv on the weeken

2、d.n2教室必须必须天天打扫打扫nClassroom every day.情态动词情态动词TeenagersshouldbeallowedtowatchTvonSunday(byus).must be cleaned加加not情态动词情态动词第3页，讲稿共11张，创作于星期日3稻谷不应该种不应该种在山上nRice on the hill.n4.You must not take these magazines out of the reading-room.nThese magazines out ofnthe reading-room.n5.We should plant many tree

3、s on the mountains.shouldnt be plantedmust not be taken第4页，讲稿共11张，创作于星期日8.木头能做桌子吗？是的，能。n tables of wood?nYes,they of wood.n9.废纸不应该扔在这里。nWaste paper here.n10.这件事应该是李明干吗？n the thing by Li Ming？Can be madecanbemadeshould not be thrownShouldbe done第6页，讲稿共11张，创作于星期日11.Parents should allow fourteen-year-o

4、lds to choose their own clothes.nFourteen-year-olds to choose their own clothes（by parents）n12.Teachers can use cartoons to give examples in class about aids.nKartoons to give examples in class about aids.should be allowedcan be used第7页，讲稿共11张，创作于星期日13.Hecanfixthecomputer.Thecomputerbyhim.n14.Studen

5、tsmayusethecomputershere.nThecomputersbystudents.n15.Youmustwatertheflowernow.nTheflowerbyyounow.can be fixedmay be usedmust be watered第8页，讲稿共11张，创作于星期日16.Youshouldwatertheflowernow.Theflowerbyyounown17.Wecanrepairthiswatchintwo.n18.Weshoulddotheworkassoonaspossible.nThe work as soon as possible.Thi

6、swatchcan be repairedintwodaysshould be wateredshould be done第9页，讲稿共11张，创作于星期日19.YoumustpayattentiontoyourpronunciationnYour pronunciation attention to(by you).n20.Wecanfinishtheworkintwodays.n Theworkintwodays n21.You can dig a hole in the earth nAHoleintheearth must be paidcan be finishedcan be dug第10页，讲稿共11张，创作于星期日感谢大家观看第11页，讲稿共11张，创作于星期日