情态动词的被动.ppt

含有情态动词的,被动语态,be+V-pp,can/must/may/should,+,.可以/必须/应该被.,Wecleantheclassroomeveryday.,Theclassroomiscleaned(byus)everyday.,Weshouldcleantheclassroomeveryday.,Theclassroomshouldbecleaned(byus)everyday.,WemustkeepteenagersawayfromtheInternet.,TheteenagersmustbekeptfromtheInternet(byus).,陈述句,结构：主+_be+_.+其他（肯）主+_+_+be+_+其他（否）,情态动词,V-pp,情态动词,not,V-pp,Theclassroomiscleaned(byus)everyday.,Theclassroomshouldbecleaned(byus)everyday.,TheteenagersmustbekeptfromtheInternet(byus).,一般疑问句,Istheclassroomcleaned(byyou)everyday?,Shouldtheclassroombecleaned(byyou)everyday?,MusttheteenagersbekeptfromtheInternet(byus)?,情态动词+主+be+v-pp.+其他？,Youngtreesshould_everyyear.A.beplantedB.plantedC.plant.按要求完成下列各句每空一词含缩写。1.Wemustdotheworkrightnow.(改为被动语态)_rightnow.,A,Theworkmustbedone,.选择最佳答案。,2.Teenagersshouldbeallowedtogooutwiththeirfriendsonschoolnights.(改为否定句)Teenagers_togooutwiththeirfriendsonschoolnights.3.Abookshouldbereadeachmonth.(改为一般疑问句)_eachmonth?,shouldntbeallowed,Shouldabookberead,1.Theirworkmust_(finish)byfouroclock.2.Yourhomeworkshould_(do)byyourself.3.Thesebooksmustnt_(take)outofthereadingroom.4.Shouldthesefood_(keep)dry?,befinished,bedone,betaken,bekept,用所给词的适当形式填空。,.句型转换1.Youshouldmakeupthebedeveryday.(改为被动语态)Thebed_upeveryday.2.Wecantseestarsinthedaytime.(改为被动语态)Stars_inthedaytime.3.Youmustreturnthebookontime.(改为一般疑问句)_thebook_ontime?,shouldbemade,cantbeseen,Must,bereturned,2.Parentsshouldencourageteenagerstodosocialworkfortheircommunity.3.CanLucydoherhomeworktomorrowinstead?,Teenagersshouldbeencouraged(bytheirparents)todosocialworkfortheircommunity.,Canthehomeworkbedone(byLucy)tomorrowinstead?,4aRewritethesentencesaccordingtotheexample.,4.DoyouthinkwemustkeepteenagersawayfromtheInternet?5.Parentsshouldgiveteenagerschancestomaketheirowndecisions.,DoyouthinkteenagersmustbekeptawayfromtheInternet?,Teenagersshouldbegivenchancestomaketheirowndecisions.,Thekeys,beasked,areall