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新概念英语第二册语法总结:被动语态何时运用被动语态:(1)强调动作的接受者:AmericawasdiscoveredbyColumbus.(2)不知谁是动作的执行者:Youarewantedonthephone.(3)作客观说明:Itissaidthatthemeetinghasbeenputoff.(经典句型)主动变被动的基本方法:(说起来容易掌握起来需要用心!)(1)主动语态中的宾语变为被动语态的主语。(2)谓语动词变为由“be+过去分词”的形式配合时态作相应变化。(3)主动语态主语置于介词by之后如无必需则省略。(4)不及物动词没有被动语态。现在do(does)→am/is/are+doneWekeepthepianointheliving-room.→Thepianoiskeptintheliving-room.过去did→was/were+doneTheybuiltthebridgein1980.→Thebridgewasbuiltin1980.将来will/shalldo→will/shall+be+doneHewillreadthebooktomorrow.→Thebookwillbereadtomorrow.现在完成have/hasdone→have/has+been+doneWehavedeliveredthenewspaper.→Thenewspapershavebeendelivered(byus).过去完成haddone→hadbeendoneShehadseenthefilmbeforeshecamehere.→Thefilmhadbeenseenbeforeshecamehere.将来完成will/shallhavedone→will/shallhave+been+doneBytheendofthistermweshallhavefinished80texts.→Bytheendofthisterm80textswillhavebeenfinished.现在进行am/is/aredoing→am/is/are+being+doneTheyaredrawingthepicture.→Thepictureisbeingdrawnbythem.</p>过去进行was/weredoing→was/were+being+doneHewasreviewingtheirlessonsatthismomentyesterday.→Theirlessonswerebeingreviewedatthismomentyesterday.情态动词maymaycancanmustmustshoulddo→should+be+doneoughttooughttousedtousedtoYoumustwriteanarticleonthesubject.→Anarticlemustbewrittenonthesubject.测试精编1.Sincethefirstspacemissionmanycommunicationsatellites________.A.waslaunchedB.arelaunchedC.havebeenlaunchedD.hadbeenlaunched2.Whatkindofadvice________you?A.hasgaveB.wasgaveC.hadbeengiventoD.hasgiven3.Theslave________frommorningtillnight.A.madetoworkB