复习:两种语态(主动语态/被动语态)主动语态变被动语态的方法(主语)(宾语)主动语态:动作的执行者+谓语动词的主动形式+动作的承受者被动语态:动作的承受者+谓语动词的被动形式+动作的执行者(主语)(宾语)说明:(1)要将主动句里的宾语变为被动句中的主语,若主动句中的宾语为人称代词,要将宾格变成主格。(2)把主动句中的主语变为被动句中的宾语,主格变宾格,并由by引导。(3)谓语动词变成相应的被动形式。Heplantstreesinspring.主谓宾(受动者)Treesareplantedbyhim改为被动语态inspring.主动语态变被动语态口诀:宾语提前主语变,原主变宾by后见,时态人称be关键。Tomwillcleantheroomtomorrow.主谓宾(受动者)TheroomwillbecleanedbyTomtomorrow.Hisbrotherwashesbowlseveryday.主谓宾(受动者)Bowlsarewashedbyhisbrothereveryday.被动语态的基本构成:be+动词的过去分词(be+done)时态主动语态被动语态一般现在时V(原形)/V(e)sam/is/are+Vpp一般过去时V-ed/madewas/were+Vpp一般将来时will+V(原形)will+be+Vpp含情态动词情态动词+V(原形)情态动词+be+Vpp各种时态的被动语态构成一般现在时:一般过去时:情态动词:一般将来时:现在进行时:现在完成时:过去进行时:S+am/is/are+P.PS+was/were+P.P.S+can/may/must/should+be+P.P.S+will+be+P.P.S+am/is/are+being+P.P.S+have/has+been+P.P.S+was/were+being+P.P.1.Theymakeshoesinthatfactory.主语+及物动词+宾语Shoesaremade(bythem)inthatfactory.一般现在时:S(主语)+am/is/are+过去分词2.Theyboughttencomputerslastterm.Tencomputerswerebought(bythem)lastterm.一般过去时:S+was/were+过去分词3.AmycantakegoodcareofGina.GinacanbetakengoodcareofbyAmy.情态动词:S+can/may/must/should+be+过去分词4.Theywillfinishtheworkintendays.Theworkwillbefinished(bythem)intendays.一般将来时:S+will+be+过去分词5.Someworkersarepaintingtheroomsnow.Theroomsarebeingpaintedbysomeworkersnow.现在进行时:S+am/is/are+being+过去分词6.Wehavemadetwentymorekeys.Twentymorekeyshavebeenmadebyus.现在完成时:S+have/has+been+过去分词7.Iwasdoingmyhomeworkat8:00lastnight.Myhomeworkwasbeingdone(byme)at8:00lastnight.过去进行时:S+was/were+being+过去分词1.一般现在时被动语态am/is/are+done把主动句变为被动句Wecleantheclassroomeveryday.——————————Theclassroomiscleanedbyuseveryday.2.Acoatwasputonbyhim.2.一般过去时被动语态构成:was/were+done把主动句变为被动句:1.Hemadethekite.2.Heputonacoat.1.Thekitewasmadebyhim.3.一般将来时被动语态构成:shall/will/begoingto+bedone1.Theywillplanttreestomorrow.2.Heisgoingtowritealettertohismother.1.Treeswillbeplantedbythemtomorrow2.Aletterisgoingtobewrittentohismotherbyhim.4.现在完成时被动语态has/have+beendoneJimhasfinishedthework.TheworkhasbeenfinishedbyJim.5.含有情态动词的被动语态can/may/must/should+bedoneIcanfindhim1Hecanbefoundbyme.被动语态的用法1.不知道动作的执行者是谁。这块手表是中国制造的。ThiswatchismadeinChina.2.没有必要指出动作的执行者每年都应该种更多的树。Manytreesshouldbeplantedeveryyear.3.需要强调或突出动作的承受者。世界上越来越多的人说汉语。Chineseisspokenbymoreandmorepeopleintheworld.4.句子的主语是动作的承受者。许多房屋被冲走了。Manyhouseswerewashedawaybytheflood.补充部分1.主动结构表被动意义open,lock,write,read,sell,wash,cut,burn,drive等词作不及物动词时,它们的主语为物,可以用主动语态表被动意义。Thiskindofshirtsellswell.2.look,sound,taste,smell等系动词用主动表被动意义。例:Itsmellswonderful.Mooncakestastedelicious.3.在beworthdoing中,doing表被动意义。例:Thisbookisworthreading.•4.want/need/require+doing=want/need/require+tobedone例:Mybikeneedsrepairing.•=Mybikeneedstoberepaired.•我的自行车需要修理。课堂练习(一)改写句子1.Weplanttreesinspringeveryyear._________________byusinspringeveryyear.2.Shepostedtheletteryesterday.____________________byheryesterday.3.MrTurnergavemeabirthdaypresent._______________abirthdaypresentbyMrTurner.5.Youmayhandinyourhomeworktomorrow.______________________________byyoutomorrow.6.Sheisgoingtowritealetter.__________________________byher.TreesareplantedTheletterwaspostedIwasgivenYourhomeworkmaybehandedinAletterisgoingtobewritten1.Ifcitynoises____fromincreasing,people____shouttobeheardevenatdinner.A.arenotkept;willhavetoB.arenotkept;haveC.donotkeep;willhavetoD.donotkeep;haveto2.Thefifthgenerationcomputers,____andperfectednow.A.developedB.havedevelopedC.arebeingdevelopedD.willhavebeendeveloped3.---____thesportsmeetmightbeputoff.---Yes,italldependsontheweather.A.I'vebeentoldB.I'vetoldC.I'mtoldD.ItoldACA4.Ineedonemorestampbeforemycollection___.A.hascompletedB.completesC.hasbeencompletedD.iscompleted5.Rainforests___andburnedatsuchaspeedthattheywilldisappearfromtheearthinthenearfuture.A.cutB.arecutC.arebeingcutD.hadbeencut6.Thenewbridge___bytheendoflastmonth.A.hasbeendesignedB.hadbeendesignedC.wasdesignedD.wouldbedesigned7.Whenpartofapencilisinaglassofwater,itlooksasifit____.A.breaksB.hasbrokenC.wasbrokenD.hadbeenbrokenDCBC8.Greatchanges___inthecity,andalotoffactories___.A.havebeentakenplace;havebeensetupB.havetakenplace;havebeensetupC.havetakenplace;havesetupD.weretakenplace;weresetup9.Thatsuit__over60dollars.A.hadcostedB.costedC.iscostedD.cost10.---Look!Everythinghereisunderconstruction.---What’stheprettysmallhousethat__for?A.isbeingbuiltB.hasbeenbuiltC.isbuiltD.isbuilding11.---Doyoulikethecloth?---Yes,it___verysoft.A.isfeelingB.feltC.feelsD.isfeltBDAC12.Itisdifficultforaforeigner____Chinese.A.writeB.towriteC.tobewrittenD.written13.Ihavenomoreletters____,thankyou.A.totypeB.typingC.tobetypedD.typed14.Takecare!Don’tdroptheinkonyourshirt,forit__easily.A.won’twashoutB.won’tbewashedoutC.isn’twashedoutD.isn’twashingout15.Nobodynoticedthethiefslipintothehousebecausethelightshappenedto___.A.beputupB.giveinC.beturnedonD.gooutBCAD16.Thecomputersonthetable___ProfessorSmith.A.belongsB.arebelongedtoC.belongstoD.belongto17.---Whatdoyouthinkofthebook?---Oh,excellent.It’sworth___asecondtime.A.toreadB.tobereadC.readingD.beingread18.Thesquirrelwasluckythatitjustmissed___.A.catchingB.tobecaughtC.beingcaughtD.tocatch19.Thispageneeded___again.A.beingch