必修二-Unit-3-语法-现在完成时被动语态.ppt-
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必修二 Unit 3 语法 现在完成时被动语态.ppt 1、ThePresentPerfectPassiveVoice如今完成时的被动语态GrammarThissongbychildrenThesebooksbygirls.1一般如今时(simplepresenttense)的被动语态：S(主语〕+am/is/are+done(过去分词)Thesportsmeetinginourcitylastyear.2一般过去时(simplepasttense)的被动语态：S+was/were+done(过去分词)isoftensungareoftenborrowedwasheld复习各时态〔tense)的被动语态(passivevoice)：Thisworkeasily.3情态动词(Modalverb)的被动语态：S+can/may/must/s 2、hould+be+doneManybuildingsinmyhometown.4一般将来时(futuretense)的被动语态：S+willbe+donewillbebuilt复习各时态〔tense)的被动语态(passivevoice)：canbedone1helphelpedhelpedV原形过去式过去分词2changechangedchanged3studystudiedstudied4planplannedplannedbegbeggedbeggedstopstoppedstopped5givegavegiven动词的过去式和过去分词规则：1+ede+dyi+ed重读闭音节，末尾只有一个辅音字母，双写辅音字母+ed动词的过去式和过去分不规则复习：写出以下动词的过去式和过 3、去分词helpchangestudyplanbegstopgive1OvertimeIhavebeenchangedquitealot.2FirstasaPCandthenasalaptopIhavebeenusedinofficesandhomessincethe1970s.3…IneverforgetanythingIhavebeentold!4Sincethe1970smanynewapplicationshavebeenfoundforme.5Ihavealsobeenputintorobotsandusedtomakemobilephones…6IhaveevenbeenputintospacerocketsandsenttoexploretheMOonandMars 4、.Discoveringusefulstructuresfromthepassageonp18:如今完成时的被 动语态 如今完成时的被动语态表示动作发生在过去,到如今已经完成或对如今仍有影响,其构成是:have/hasbeen+done。例如：1.Thedirtyclotheshavebeenwashed.脏衣服都已经洗了。2.Theplanhasbeenstudiedbytheexpertsforthreetimes.这项打算已经由专家讨论过三次了。如今完成时的被动语态表达以下两个概念：1.说话时已经完成的动作或出现的结果。2.主语是行为动作的承受者，在使用如今完成时的被动语态时要留意以下两点：过去分词前有两个助动词have/has和been。2.必需表示被动。Ihavebee 5、ntoldaboutitmanytimes．Thebridgehasjustbeenbuilt．1.如今完成时被动语态确定句句型：主语+have/hasbeen+过去分词Hermotorbikehasbeenstolen.2.如今完成时被动语态否认句句型：主语+have/has+not+been+过去分词Thetaskhasnotbeenfinishedyet.Manyskilledworkershavenotbeentrainedinthecompany.Thepresentperfectpassivevoice(确定句、否认句:3.如今完成时被动语态一般疑问句句型：Have/Has+主语+been+过去分词...?Hasanewcomputerbeenbought?Have 6、theybeensentabroadtostudyEnglish?4.如今完成时被动语态特别疑问句句型：疑问词+have/has+主语+been+过去分词...?Wherehasthecarbeenrepaired?Whohavebeenhelpedbythenewcomputer?Howmanybuildingshavebeenbuiltinthisschool?Thepresentperfectpassivevoice(疑问句〕:留意:副词的位置often,usually,always,never,hardly,seldom等副词置于have/has和been中间。Suchamanhashardlybeenbelieved.2.并不是全部第 11 页 动词都有被动语态(1)happen, 7、takeplace,breakout,belongto,cost,last等不及物动词或词组无被动语态。如：GreatchangeshavetakenplaceinChinasince1978.3.短语动词不行分割也不行省略其中的介词或副词。Thepatientshavebeentakengoodcareof.Workershavebuiltthehousesincetwoyearsago.sincetwoyearsago.Exercise1:Changethesentencesintothepresentperfectpassivevoice动作的执行者动作的承受者谓语动词Thehousehasbeenbuiltbyworkers1Wehavereceivedmanylett 8、erssincelastweek.Manylettershavebeenreceivedsincelastweek.Changethesentencesintothepresentperfectpassivevoice2Myfriendhasboughtanewpersonalcomputer.Anewpersonalcomputerhasbeenboughtbymyfriends3Theshophasrepairedmycomputerveryquickly.Mycomputerhasbeenrepairedbytheshopveryquickly.ChangethesentencesintothepresentperfectpassivevoiceThebuildings, 9、destroy,earthquakeThebuildingshavebeendestroyedintheearthquake;Exercise2:Makingupsentencesusingpresentperfectpassivevoice:machinereplacecomputer1Themachinehasbeenreplacedbythecomputer.Makingupsentencesusingpresentperfectpassivevoice:newbridge,build,inourcity2Anewbridgehasbeenbuiltinourcitymanytrees,plant,alongtheroad3Manytreeshavebeenplanted 10、alongtheroad4Mycomputer,justattack,anunknownvirus.5theproblem,not,sol ve,we,yet6thecomputers,giveaway,to,alocalschool,thecompanyMycomputerhasjustbeenattackedbyanunknownvirus.Theproblemhasnotbeensolvedbyusyet.Thecomputershavebeengivenawaytoalocalschoolbythecompany7Akindofintelligentrobot,develop,thescientistsAkindofintelligentrobothasbeendevel 11、opedbythescientistsMakeupthesentencesusingthepresentperfectpassivevoice.PuttheChineseintoEnglishtocompletethesentences.1.Howmanyworkers_____________(已派遣)tobuildtherailway?2.—WhydoesMarylooksounhappy?—She_________________(被嘲讽)byherclassmates.havebeensenthasbeenlaughedatExercise3:3.Itissaidthatthehouse___________________(闯进了)bytwothieves.4.The 12、twopens______________________(未被拿走)byhim.5.Where____thetelevision______________(已经修理了)?6.ThepriceofacolorTVset_____________________(降价了)again.7.What__________________(已被译成)intomanyforeignlanguages?havenotbeentakenawayhasbeenrepairedbrokenintohasbeenhasbeenbroughtdownhasbeentranslated1.Thefloorinourclassroom_____________(mop)everyday2Manyacci 13、dents____________(cause)bycarelessdriving.3.I____________(ask)tocleanmyroomonMonday.4We____________(take)tothathospitalbyataxi.5Anewcoat__第 12 页 本文来源：https://www.wddqw.com/doc/78665cb27f1cfad6195f312b3169a4517723e582.html