ThePassiveVoice被动态英语中动词有主动语态和被动语态两种语态。主动语态表示主语是动作的执行者,被动语态表示主语是动作的承受者,在被动语态中动作的执行者有时用by短语表示出来.一般现在时(simplepresent)：S(主语)+am/is/are+过去分词(done)一般过去时(simplepast)：S(主语)+was/were+过去分词(done)waterwateredwatereduseusedusedstudystudiedstudiedstopstoppedstoppeddodiddonerideroderiddenForexamplefindfoundfoundmakemademadebuildbuiltbuiltsweepsweptswepttaketooktakenbuyboughtboughthavehadhadLet’shaveatry.singsangsungtelltoldtoldgivegavegivenShewaterstheflowerseveryday.Theflowerseveryday.arewatered(byher)Theydotheirhomeworkafterschool.Theirhomeworkisdone(bythem)afterschool.Heplaysbasketballeveryweek.Basketballisplayed(byhim)everyweek.Mymothersweepstheflooreveryday.Thefloorisswept(bymymother)everyday.2.Iboughtacomputerlastterm．Acomputerwasbought(byme)lastterm.Thelightwasinvented(byThomasEdison).inventThomasEdisoninventedthelight.JimJimroderodethemotorbiketohisfactoryyesterday.themotorbiketohisfactoryyesterday.ThemotorbikeThemotorbikewasriddenwasridden(byJim)tohisfactory(byJim)tohisfactoryyesterday.yesterday.TheyTheyhadhadaneveningpartylastweek.aneveningpartylastweek.AneveningpartyAneveningpartywashadwashad(bythem)lastweek.(bythem)lastweek.TheGreatWallwasbuilt(byChinesepeople)manyyearsago.ChinesepeoplebuilttheGreatWallmanyyearsago.Thestudentsplantedmanytreesyesterday.Manytreeswereplanted(bythestudents)yesterday.Anncantakegoodcareofthecats．ThecatscanbetakengoodcareofbyAnn.情态动词(modelverb)：S+can/must/should等情态动词+be+过去分词HeHecancarrycancarrythebasket.thebasket.ThebasketThebasketcanbecanbecarriedcarried(byhim).(byhim).TheyTheycansingcansingsomebeautifulsongs.somebeautifulsongs.SomebeautifulsongsSomebeautifulsongscanbesungcanbesungbythem.bythem.Weshouldcleantheclassroomeveryday.Theclassroomshouldbecleanedbyuseveryday.1.Peopleuseknivesforcuttingthings.Knives____________forcuttingthings.2.Thestudentscleanthewindowsoftheirclassroomtwiceamonth.Thewindowsoftheirclassroom_____________twiceamonth.areusedarecleaned(变被动语态）七嘴八舌3.Ifoundtheticketonthefloor.________________________onthefloor.4.Itoldhertoreturnthebookintime.She_____________toreturnthebookintime.Theticketwasfoundwastold3.Wefoundtheticketonthefloor.5.Lastyearwebuiltalibraryinourschool.Alibrary______________inourschoollastyear.6.Nowpeoplecanusecomputerstohelpthem.Nowcomputers___________________tohelpthem.wasbuiltcanbeused7.Didyouplantmanytreesatthistimelastyear?___________________________atthistimelasttime?8.Mustwefinishourworktoday?_______ourwork_____________today?WeremanytreesplantedMustbefinished9.Theforeignfriendsgaveussomewonderfulstamps.1)____________________somewonderfulstamps.2)Somewonderfulstamps_____________________________.weweregivenweregiventous10.TheteacheraskedTomtoturnonthecomputer.Tom_______________toturnonthecomputer.11.Inthisfactorywomendomostofthework.Mostofthework_______________bywomeninthisfactory.wasaskedisdone12.Hecanmendthebikeintwodays.Thebike___________________intwodays.13.Youmusttakethismedicinethreetimesaday.Thismedicine______________________threetimesaday.canbemendedmustbetakenHaveatry•1.Theemperorinventedteabyaccident.•2.ManyChinesecanspeakEnglish.•3.Theydon’twashtheirclotheseveryday.•4.Theboybrokethedooroftheclass.Teawasinventedbytheemperorbyaccident.EnglishcanbespokenbymanyChinese.Theirclothesaren’twashedbythemeveryday.Thedooroftheclasswasbrokenbytheboy.5.Wedidn’tsolvetheproblem.6.DidMaryfinishthework?7.Hismothershouldn’tallowhimtowearearrings.8.Shouldwewaterthetreeseveryday?9.Wemuststoppeoplewalkingonthegrass.Theproblemwasn’tsolvedbyus.WastheworkfinishedbyMary?Heshouldn’tbeallowedtowearearringsbyhismother.Shouldthetreesbewateredbyuseveryday?Peoplemustbestoppedwalkingonthegrass.
