英语动词有两种语态：主动语态(theActiveVoice)被动语态(thePassiveVoice)A.主动语态表示主语是动作的执行者。B.被动语态表示主语是动作的承受者。Weplantedthetree.Thetreewasplantedbyus.注：后面能接宾语的动词vt才有被动语态((一一))什么时候用被动语态什么时候用被动语态::1.1.不知道谁是动作的执行者时不知道谁是动作的执行者时2.2.没有必要指出谁是动作的执行者时没有必要指出谁是动作的执行者时3.3.只需要强调动作的承受着时只需要强调动作的承受着时((一一))什么时候用被动语态什么时候用被动语态::1.1.不知道谁是动作的执行者时不知道谁是动作的执行者时2.2.没有必要指出谁是动作的执行者时没有必要指出谁是动作的执行者时3.3.只需要强调动作的承受着时只需要强调动作的承受着时Theblouseismadeofsilk.Thezipperisoftenusedinourdailylife.IthinktheTVwasinventedafterthecar.be+过去分词be+过去分词(二)被动语态最基本结构:有各种时态的变化,时态不同，结构不同1.一般现在时和一般过去式句子的被动语态：Peoplegrowriceinthesouthofthecountry.RiceRiceisgrownisgrownbypeopleinthesouthofthecountry.bypeopleinthesouthofthecountry.Theschooldoesn'tallowustoenterthechemistrylabwithoutateacher.WeWearenotallowedarenotallowedtoenterthechemistrylabtoenterthechemistrylabwithoutateacherbytheschool.withoutateacherbytheschool.Helosthiskeyyesterday.Hiskeywaslostbyhimyesterday.归纳结构：主语+am/is/are/was/were+PP主语+am/is/are/was/were+PP主变被步骤:1.找宾语:即动作的承受者(改为主语)Hewashedhiscaryesterday.Hiscar3.判断新主语的单复数:确定be动词的单复数.be4.判断动词的时态:即be动词的时态.2.修改谓语的语态:即be+原V.过去分词washed5.修改原句的主语:即by+主语(变宾格).(byhim)yesterday.iswaswasTheymakethebikesinthefactory.Thebikesinthefactory.aremadethembyPeoplegrowriceinthesouthofthecountry.Helosthiskeyyesterday.Theyplantedmanytreeslastyear.Wecleanourclassroomeveryday.1.ThisEnglishsong________bythegirlsafterclass.A.oftensingsB.oftensangC.isoftensangD.isoftensung2.Why_______totalkaboutityesterday?A.didn’tameetingholdB.wasn’tameetingheldC.wasn’theldameetingD.ameetingwasn’theld3.I_______insummer.A.bornB.wasbornC.havebeenbornD.amborn4.ThePeople’sRepublicofChina_____onOctober1,1949.A.FoundB.wasfoundedC.isfoundedD.wasfound5.English________inCanada.A.speaksB.arespokenC.isspeakingD.isspoken6.Morethan100trees_______(plant)inourschoollastspring.7.What_____thiskindofflower_______(call)?1.Theysellorangesintheshop.______________________________________.2.Peopledon’tproduceoilinAmerica.______________________________________.3.HowmanyTVsetsdidyouselllastweek?______________________________________.4.Helen’sparentssenthertoschoolwhenshewasnine.5.Peoplemakeice-wineinCanada.______________________________________.6.DopeoplespeakEnglishinmanycountries?______________________________________.8.Platesanddishes______(notwash)aftersupperyesterday.9.Thesong___________(notlike)bymostofus.7.Shegavemeapen.((三三))语态转换时要注意的问题语态转换时要注意的问题1.把主动语态变为被动语态时，其谓语动词的时态要与原句时态保持一致，其谓语动词的数要与新主语保持一致。Wehaveboughtanewcomputer.Anewcomputerhasbeenbought.(正确)Anewcomputerhavebeenbought.(错误)2.含有双宾语的主动句变被动句时，可分别将其中的一个宾语变为主语，另一个不动，一般变间接宾语为主语时比较多。Myunclegavemeapresentonmybirthday.Iwasgivenapresentonmybirthday.如果把直接宾语(指物)改为主语，则在间接宾语(指人)前加适当的介词，如上句还可以说：Apresentwasgiventomeyesterday.保留宾语保留宾语注意：注意：一般在下列动词后，常在间接宾语前用介词to，如...
