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Part3GrammarPassivevoiceinpresentperfecttenseLet’sreview!现在完成时•1.presentperfecttense•结构：have/has+过去分词•e.g.•Ihavefinishedmyhomework.•Shehaslivedhereforthreeyears.现在完成时(have/has+过去分词)现在完成时的动作或情况虽然发生在过去，但它强调的是与现在的关系。现在完成时不能与表示确定的过去时间的状语连用,如:yesterday,twoweeksago,in1978,whenIgotthere等,现在完成时常与already,ever,never,yet,not...yet，recently,lately等不表示明确的时间副词连用还可以和表示时间一直延续到目前的带since,for的状语及包括现在在内的词连用,如:now,today,thismonth,thisyear,recently,thesefewdays,inthepastyears等。Haveatry!Fillintheblankwiththerightformoftheverbgiven.•Eddie_______(come)toMillie’familytwoyearsago.•Eddie____________(live)withMilliesincehewasborn.•Eddie____________(eat)Millie’sfood,sonowHobohasnothingtoeat.camehaseatenhaslived•?am/is/are+p.pwas/were+p.p1TreesareplantedbystudentsinMarcheveryyearThelittlegirlwassavedbyapoliceman3Manytallbuildingswerebuiltlastyear•Thehomeworkhasbeenfinished.•Manynewbuildingshavebeenbuiltsince2000.•Lawshavebeencreatedtohelpprotecttheenvironment.•Newwayshavebeenfoundtocreateelectricityfromthesun,thewindandthewater.Peoplehavealsocreatedlawstohelpprotecttheenvironment.Lawshavealsobeencreated(bypeople)tohelpprotecttheenvironment.•Turntopage73andreadtheExercisePartA.•Pleaselookatthetenseusedinthesentencesyouhavepickedoutandthinkoverthefollowingquestion:Whatisthestructureofpassivevoiceinpresentperfecttense?Let’sfind!1.Thisbike________lastyear.A.boughtB.hasbeenboughtC.wasboughtD.hadbeenbought2.English____inCanada.A.speaksB.arespokenC.isspeakingD.isspoken3.I'dliketobuythatcoat.-I'msorry.___.A.itsoldB.it'ssellingC.It'sbeensoldD.ithadbeensold4.Thesepapers___yet.A.havenotwrittenB.havenotbeenwrittenC.hasnotwrittenD.hasnotbeenwritten5.Thebooks___fortwoweeks.A.havekeptB.havebeenkeptC.keptD.borrowed6.Thebridges___twoyearsago.A.isbuiltB.builtC.werebuiltD.wasbuilt7.Greatchanges___inthepasttenyearinChina.A.tookplaceB.havetakenplaceC.weretakingplaceD.hadtakenplacePassiveVoiceinPresentPerfectTense【含义】表示将要发生的被动动作，后常跟表示将来时的时间状语。【结构】???SummingupPassivevoiceinpresentperfecttensePresentperfecttensethepassivevoicehave/has+dobeen+p.p.have/has+been+p.p.has只用于第三人称.Newwayshavebeenfoundtocreateelectricityfromthesun,thewindandwater.Manyfishhavebeenkilledbywaterpollution.Ameetinghasbeenheldbythegovernment.Peoplehavefoundnewwaystocreateelectricityfromthesun,thewindandwater.Waterpollutionhaskilledmanyfish.Thegovernmenthasheldameetingrecently.Newwayshavebeenfoundtocreateelectricityfromthesun,thewindandwater.Manyfishhavebeenkilledbywaterpollution.Ameetinghasbeenheldbythegovernment.have/has现在完成时bedone(过去分词)被动语态beenHave/hasnotbeendone否定结构TheyhavenotbeentoldthetimeofMeeting.tellNotes：注意句中副词的位置。often,usually,always,never,hardly,seldom等副词置于have/has和been中间。如:[误]Suchamanhasbeenhardlybelieved.[正]Suchamanhashardlybeenbelieved.Let’spractice!1.Thepowerstation___inmyhometown.A.hassetupB.hasbeensetupC.wassetupD.issetup2.---_____thesportsmeetingwillbeputoff.A.I’vebeentoldB.I’vetoldC.I’mtoldD.Itold3.----Howlong____atthisjob?----Since1990.A.wereyouemployedB.haveyoubeenemployedC.hadyoubeenemployedD.willyoubeemployed5.Whenandwheretogofortheon-salaryholiday____yet.A.arenotdecidedB.havenotbeendecidedC.isnotbeingdecidedD.hasnotbeendecided5.Betty___injuredsincelastSaturday.A.hasbeenB.wasC.isD.has•Turntopage73anddotheExercise.•Completetheirconversationusingthepassivevoice.Let’ssummaries！take‘‘tell”forexample•Ihave•Youhave•He/She/Ithas•Wehave•You/Theyhavebeentold…AffirmativeNegative•Ihave•Youhave•He/She/Ithas•Wehave•You/Theyhavebeentold…notInterrogative•HaveI•Haveyou•Hashe/she/it•Havewe•Haveyou/theybeentold…