情态动词的被动语态课件

吴碧先Ⅰ语态的种类：和。Ⅱ主动语态：表示主语是。被动语态：表示主语是。Ⅲ被动语态结构：be+p.p.(动词的过去分词)Ⅳ情态动词的被动语态：情态动词+be+p.p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承受者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。例子:1Weshouldallowteenagerstowatch主语谓语动词宾语Tvontheweekend.→2教室必须天天打扫Classroomeveryday.情态动词TeenagersshouldbeallowedtowatchTvonSunday(byus).mustbecleaned加not情态动词3稻谷不应该种在山上Riceonthehill.4.Youmustnottakethesemagazinesoutofthereading-room.→Thesemagazinesoutofthereading-room.5.Weshouldplantmanytreesonthemountains.→shouldn’tbeplantedmustnotbetaken8.木头能做桌子吗？是的，能。tablesofwood?Yes,theyofwood.9.废纸不应该扔在这里。Wastepaperhere.10.这件事应该是李明干吗？thethingbyLiMing？CanbemadecanbemadeshouldnotbethrownShouldbedone11.Parentsshouldallowfourteen-year-oldstochoosetheirownclothes.→Fourteen-year-oldstochoosetheirownclothes（byparents）12.Teacherscanusecartoonstogiveexamplesinclassaboutaids.Kartoonstogiveexamplesinclassaboutaids.shouldbeallowedcanbeused13.Hecanfixthecomputer.→Thecomputerbyhim.14.Studentsmayusethecomputershere.→Thecomputersbystudents.15.Youmustwatertheflowernow.Theflowerbyyounow.canbefixedmaybeusedmustbewatered16.Youshouldwatertheflowernow.→Theflowerbyyounow17.Wecanrepairthiswatchintwo.18.Weshoulddotheworkassoonaspossible.→Theworkassoonaspossible.Thiswatchcanberepairedintwodaysshouldbewateredshouldbedone19.Youmustpayattentiontoyourpronunciation→Yourpronunciationattentionto(byyou).20.Wecanfinishtheworkintwodays.→Theworkintwodays21.Youcandigaholeintheearth→AHoleintheearthmustbepaidcanbefinishedcanbedug22.Youmustnotplanttreesinverydryearth.Treesinverydryearth.23.在学校必须要遵守校规。→Schoolrulesatschool.24.交通规则需要遵守吗？是的，必须要遵守的。trafficrules?Yes,they.mustnotbeplantedmustbeobeyedmustbeobeyedNeedbeobeyedmustbeobeyed