初中被动语态的奥秘优质PPT.ppt
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一般现在时被动语态的构成:
主语主语+am/is/are+及物动词的过去分词及物动词的过去分词动词过去分词的构成规则(与动词过去式构成规则一样):
动词过去分词的构成规则(与动词过去式构成规则一样):
1、一般在动词原形末尾加、一般在动词原形末尾加-ed,lookedplayed2、结尾是结尾是e的动词加的动词加-d,livedused3、末尾只有一个辅音字母的重读闭音节词,先末尾只有一个辅音字母的重读闭音节词,先双写双写这个辅音字母这个辅音字母,再加,再加-ed,plannedtripped4、结尾是结尾是“辅音字母辅音字母+y”的动词,先变的动词,先变“y”为为“i”,再再加加-ed,study-studied,carry-carried不规则的过去分词要牢记不规则的过去分词要牢记写出下列动词的过去式,过去分词:
sing-sang-sungbuild-built-built1、speak()2、use()3、make()4、write()5、grow()6、plant()7、produce()8、ask()9、plan()10、send()11、build()12、invite()1、speakspokespoken2、useusedused3、makemademade4、writewrotewritten5、growgrewgrown6、plantplantedplanted7、produceproducedproduced8、askaskedasked9、planplannedplanned10、sendsentsent11、buildbuiltbuilt12、inviteinvitedinvited不规则动词的过去分词要牢记请写出下列动词的过去式和过去分请写出下列动词的过去式和过去分词:
词:
sing-sang-sungbuild-built-builte.gmanypeoplespeakEnglish.Englishisspokenbymanypeople.主动语态变被动语态的步骤主动语态变被动语态的步骤:
11、主动语态的宾语变为被动语态的主语;
、主动语态的宾语变为被动语态的主语;
22、主动句的谓语动词变为被动结构;
、主动句的谓语动词变为被动结构;
33、主动句的主语变为被动句的宾语,由、主动句的主语变为被动句的宾语,由byby引出,当不强调动引出,当不强调动作的执行者时,常省略。
作的执行者时,常省略。
把下列的句子变为被动语态的句子:
1、TheyspeakEnglishinCanada.(English.)2、Peopleusewoodformakingtables.(wood.)3、ThemakecomputersintheUSA.(Computers)4、TheygrowriceinSouthChina.(Rice)EnglishisspokeninCanada.Woodisusedformakingtables.ComputeraremadeintheUSA.RiceisgrowninSouthChina.1、结构、结构be+过去分词过去分词(及物的及物的)2、各种时态的被动结构:
、各种时态的被动结构:
一般现在时:
主语一般现在时:
主语+am/is/are+过去分词过去分词TheChinesefood_tobethehealthiestintheworld.A.considersB.isconsideringC.isconsideredD.hasconsidered一般过去时被动语态的构成:
一般过去时被动语态的构成:
was/were+及物动词的过去分词及物动词的过去分词e.g1、Thebridgewasbuiltlastyear.2、Itwasusedintheolddays.3、ThePRCwasfoundedonOctober1,1949.1、结构、结构be+过去分词过去分词一般过去时:
一般过去时:
was/were+过去分词过去分词John_,forhewentswimmingyesterdaywithoutpermission.A.wouldpunishedB.hadpunishedC.punishedD.waspunishedwereplantedThebridgewaswasinvitedplay把下列句子变成被动语态的句子;
把下列句子变成被动语态的句子;
1、Theyplantedthesetreesonweekends.Thesetreesonweekends.2、Theworkersbuiltthebridgein1968builtbytheworkersin1968.3、PeopleinvitedYaoMingtoplaybasketballinTheUSA.YaoMingtobasketballintheUSA.4、IBMproducedthisnewtypeoflaptopcomputer.ThisnewtypeoflaptopcomputerbyIBM.wasproduced一般将来时:
主语一般将来时:
主语+will+be+过去分词过去分词Thenewschool_whenthenewtermbegins.A.finishesB.willfinishC.willbefinishedD.wouldfinish1、结构、结构be+being+过去分词过去分词现在进行时:
主语现在进行时:
主语+am/is/are+being+过过去分词去分词-Haveyoumovedintothenewhouse?
-Notyet.Rooms_.A.arepaintingB.arepaintedC.arebeingpaintingD.D.arebeingpainted含情态动词的被动语态构成:
含情态动词的被动语态构成:
情态动词(情态动词(can/may/must/should)+be+及物动词过去分词及物动词过去分词e.g1、Thisbikecanberepaired.2、Thetreemustbeputstraightinthehole.3、Theclassroomshouldbecleanedeveryday.把把下列主动句变被动句:
下列主动句变被动句:
1、Weshouldplantthetreesaroundthelake2、Wemustrepairthecomputernow.3、Studentsshouldcorrecttheirmistakes.4、Wemustwaterthetreeswell.Thetreesshouldbeplantedaroundthelake.Thecomputermustberepairednow.Theirmistakesshouldbecorrected.Thetreesmustbewateredwell.Sumup(.总结)总结)本节主要复习:
本节主要复习:
1、一般现在时的被动语态、一般现在时的被动语态2、一般过去时的被动语态一般过去时的被动语态3、一般将来时的被动语态、一般将来时的被动语态4、现在进行时的被动语态、现在进行时的被动语态5、情态动词的被动语态、情态动词的被动语态被动语态的用法:
被动语态的用法:
1、当不知道谁是动作的执行者时;
、当不知道谁是动作的执行者时;
2、没有必要或不想指出谁是动作的执行者时;
、没有必要或不想指出谁是动作的执行者时;
3、只需强调动作的承受者时。
、只需强调动作的承受者时。
三、单项选择题:
()1.Woolenclothesareused_keepinguswarm.A.ofB.byC.forD.in()2.Arethesefridgesmade_?
A.inChinaB.inChineseC.ofChinaD.fromChinese()3.-Wherearebananas_?
-_growninSouthChina.A.grow,ItsB.grown,ItsC.grown,TheyreD.grew,Theyre()4.TheLeague_inMay,1922.A.isfoundedB.wasfoundedC.isbuiltD.wasbuilt()5.Thestrangethingwiththreelegs_.A.usedtodrinkB.areusedfordrinkingC.isusedfordrinkingD.usedfordrinkingCACBC()6.TVprogrammescan_totheothersideoftheworld.A.sendB.besentC.makeD.bemade()7.Olderpeoplemust_politely.A.speaktoB.bespokenC.bespokentoD.sayto()8.Themoonalways_aroundtheearth.A.goesB.travelsC.turnsD.A,BandC.()9.Manypeople_Englishintheworld.A.speakB.speaksC.spokeD.arespoken.()10.Wemust_ourhomeworkeveryday.A.befinishedB.finishC.arefinishedD.finishedBCDAB四、把下列句子变成被动句:
四、把下列句子变成被动句:
1.ChinesepeoplebuilttheGreatWall2,000yearsago.2.Wemustplantmoretreesnextyearhere.3.Dalianproducesbigships.4.Farmersharvestriceinautumn.5.Weshouldcleanourclassroomeveryday.TheGreatWallwasbuiltbyChinesepeople2000yearsago.Moretreesmustbeplanted