九年级英语《Unit9Whenwasitinvented》备课课件：被动语态.ppt

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1、2．结构：be+动词过去分词1．中考考点：一般现在时被动语态一般过去时被动语态一般将来时被动语态含情态动词被动语态.不规则动词表build--–built—builtleave—left—--lefthold---held---heldsend—sent--–sentspend—spent—spentbuy–-bought---boughtCanyourememberthem?read---read—readcut---cut---cutgo—went—gonedo—did—donegive—gave—giventake—took—takenwrite—wrote—writtensp

2、eak—spoke—spokengrow----grew----grown()1.Todaycomputers__inbothcitiesandtowns.A.wereusedB.areusingC.areused()2.OlympicGames____everyfouryears.A.holdB.areheldC.ishelda)一般现在时的被动语态:主语+am/are/is+动词的过去分词肯定句:否定句:主语+am/are/is+not+动词的过去分词一般疑问句:Am/Are/Is+主语+动词的过去分词?areusedisheld袁隆平被认为世界最伟大的科学家.(2007佛山)Y

3、uanLongping_______________oneofthegreatestscientistsintheworld.isthoughttobe()3.ThePLA____in1927.A.wasfoundB.foundC.wasfounded()4.Thework____ontimeyesterday.A.wasfinishedB.hasfinishedC.finishedb)一般过去时的被动语态:主语+was/were+动词的过去分词肯定句:否定句:主语+was/were+not+动词的过去分词一般疑问句:Was/Were+主语+动词的过去分词?wasfoundedwas

4、finished中考链接:那个杯很久以前是用来喝酒的。Thecup_____________________winelonglongago.这是昨天从图书馆借来的吗？_____it___________fromthelibraryyesterday?Wasborrowedwasusedfordrinking()5.Theflowers_____everyday.Orthey’lldie.A.mustwaterB.canbewateredC.mustbewatered()6.Mybirdscan_____byoneofmyfriends.A.lookafterB.belookedaft

5、erC.belookingafterc)含情态动词的被动语态:主语+情态动词+be+动词的过去分词肯定句:否定句:主语+情态动词+not+be+动词的过去分词一般疑问句:情态动词+主语+be+动词的过去分词?mustbewateredbelookedafter()7.Theplay___attheatrenextSunday.AwillshownBisshownCwillbeshownd)一般将来时的被动语态:主语+will/begoingto+be+动词的过去分词肯定句:否定句:主语+will+not+be+动词的过去分词主语+benot+goingto+be+动词的过去分词一般疑

6、问句:Will+主语+be+动词的过去分词?Be+主语+goingtobe+动词的过去分词willbeshown()8.Paper___sinceabout2,000yearsago.AhasbeencreatedBwascreatedChascreatedd)现在完成时的被动语态:主语+have/has+been+动词的过去分词肯定句:否定句:主语+have/has+not+been+动词的过去分词一般疑问句:Have/Has+主语+been+动词的过去分词?hasbeencreated3.被动语态的用法.a)当不知谁是动作执行者,或者没有必要指出动作执行者时:e.g.这台机器是金

7、属制作的.Themachineismadeofmetal.窗户是昨天打破的.Thewindowwasbrokenyesterday.b)需要强调动作的承受者时e.g.这封信是我写的.Theletterwaswrittenbyme.3.被动语态的注意事项.a)不及物动词带介词和介词宾语时，在变为被动语态时，仍然要带上介词。e.g.Thestudentslistentotheteachercarefullyinclass.被动句:Theteacherislis