现在完成时被动语态

1helphelpedhelpedV原形过去式过去分词2changechangedchanged3studystudiedstudied4planplannedplannedbegbeggedbeggedstopstoppedstopped5givegavegiven动词的过去式和过去分词规则：1+ed2e+d3yi+ed4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：写出下列动词的过去式和过去分词helpchangestudyplanbegstopgive•Thissongbychildren•Thesebooksbygirls.1一般现在时(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/should+be+done•Manybuildingsinmyhometown.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)：canbedone现在完成时(presentperfecttense)的被动语态：S+have/has+been+done(过去分词)1OvertimeIhavebeenchangedquitealot.2FirstasaPCandthenasalaptopIhavebeenusedinofficesandhomessincethe1970s.3…IneverforgetanythingIhavebeentold!4Sincethe1970smanynewapplicationshavebeenfoundforme.5Ihavealsobeenputintorobotsandusedtomakemobilephones…6IhaveevenbeenputintospacerocketsandsenttoexploretheMOonandMars.Discoveringusefulstructuresfromthepassageonp18:现在完成时的被动语态：thepresentperfectpassivevoiceS+have/hasbeen+done(过去分词)现在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，在使用现在完成时的被动语态时要注意以下两点：1.过去分词前有两个助动词have/has和been。2.必须表示被动。Ihavebeentoldaboutitmanytimes．Thebridgehasjustbeenbuilt．1.现在完成时被动语态肯定句句型：主语+have/hasbeen+过去分词Hermotorbikehasbeenstolen.2.现在完成时被动语态否定句句型：主语+have/has+not+been+过去分词Thetaskhasnotbeenfinishedyet.Manyskilledworkershavenotbeentrainedinthecompany.•Thepresentperfectpassivevoice(肯定句、否定句:3.现在完成时被动语态一般疑问句句型：Have/Has+主语+been+过去分词...?Hasanewcomputerbeenbought?HavetheybeensentabroadtostudyEnglish?4.现在完成时被动语态特殊疑问句句型：疑问词+have/has+主语+been+过去分词...?Wherehasthecarbeenrepaired?Whohavebeenhelpedbythenewcomputer?Howmanybuildingshavebeenbuiltinthisschool?•Thepresentperfectpassivevoice(疑问句）:Workershavebuiltthehousesincetwoyearsago.sincetwoyearsago.Exercise1:Changethesentencesintothepresentperfectpassivevoice动作的执行者动作的承受者谓语动词Thehousehasbeenbuiltbyworkers1Wehavereceivedmanyletterssincelastweek.Manylettershavebeenreceivedsincelastweek.Changethesentencesintothepresentperfectpassivevoice2Myfriendhasboughtanewpersonalcomputer.Anewpersonalcomputerhasbeenboughtbymyfriends•3Theshophasrepairedmycomputerveryquickly.Mycomputerhasbeenrepairedbytheshopveryquickly.ChangethesentencesintothepresentperfectpassivevoiceThebuildings,destroy,earthquakeThebuildingshavebeendestroyedintheearthquake;•Exercise2:Makingupsentencesusingpresentperfectpassivevoice:machinereplacecomputer1Themachinehasbeenreplacedbythecomputer.•Makingupsentencesusingpresentperfectpassivevoice:newbridge,build,inourcity2Anewbridgehasbeenbuiltinourcitymanytrees,plant,alongtheroad3Manytreeshavebeenplantedalongtheroad4Mycomputer,justattack,anunknownvirus.5theproblem,not,solve,we,yet6thecomputers,giveaway,to,alocalschool,thecompanyMycomputerhasjustbeenattackedbyanunknownvirus.Theproblemhasnotbeensolvedbyusyet.Thecomputershavebeengivenawaytoalocalschoolbythecompany7Akindofintelligentrobot,develop,thescientistsAkindofintelligentrobothasbeendevelopedbythescientistsMakeupthesentencesusingthepresentperfectpassivevoice.PuttheChineseintoEnglishtocompletethesentences.1.Howmanyworkers_____________(已派遣)tobuildtherailway?2.—WhydoesMarylooksounhappy?—She_________________(被嘲笑)byherclassmates.havebeensenthasbeenlaughedatExercise3:3.Itissaidthatthehouse___________________(闯进了)bytwothieves.4.Thetwopens______________________(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)everyday2Manyaccidents____________(cause)bycarelessdriving.3.I____________(ask)tocleanmyroomonMonday.4We____________(take)tothathospitalbyataxi.5Anewcoat___________(buy)formebymymotherlastweek.6.China'sfirsttelevisionstation__________(setup)bytheworkersin1958completethesentencesusingwordsgivenwithcorrectforms.ismoppedarecausedamaskedweretakenwasboughtwassetup7He____________________(recognize)assoonashearrivesatthiscity8Allthoseoldbuildings______________________(knockdown)tomorrow.9Anewvillagefortheathletesandallthestadiums__________________________(totheeastofLondon.10.Doyouknowthethief__________________(catch)bythepolice?hasbeencaughtwillbeknockeddownwillberecognizedwillbebuiltcompletethesentencesusingwordsgivenwithcorrectforms.11Allthepreparationsfortheproject___________________(complete),Andwe’rereadytostart.12Howmanytimes_____________________(you,tell)nottoplaywithfire?－I’msorry.I’llneverdothatagain.13Thehomework__________________(must,handin)tomorrow.14Theflowers____________________(should,water)onceaweek.haveyoubeentoldhavebeencompletedcompletethesentencesusingwordsgivenwithcorrectforms.mustbehandedinshouldbewatered1现在完成时的被动语态S+have/hasbeen+done(过去分词)2一般现在时的被动语态：•S+am/is/are+done(过去分词)3一般过去时的被动语态：•S+was/were+done(过去分词)4情态动词的被动语态：•S+can/