现在完成时1ppt课件

.,现在完成时,现在完成时表示过去的动作或存在的状对现在造成的影响或结果，过去的这个动作或状态也有可能持续下去。1.Ihavejustdonemyhomework.2.Whohastakenmypen?3.Hehaslivedheresince1992.4.Thebushasjustleft.5.Theyhaveseenthefilmalready.,.,一现在完成时的构成,“主语+助动词have/has+动词过去分词”。当主语是第三人称单数形式时，要用助动词has,其他形式主语时用助动词have1.Ihavehadlunchalready.2.Shehasboughtsomebooks3.Thebuildinghasbeenbuiltforthreeyears,.,三现在完成时的用法：,1.表示一个动作刚刚结束或完成，但这个动作所造成的状态或影响依然存在，即表示过去的动作对现在的影响或结果，强调现在的情况，常与副词just,already,yet连用。（注意：already多用于肯定句或疑问句中，yet常用于疑问句或否定句句尾。）1.Wehavealreadyknowneachother.2.Ihavejustwashedmyface.3.Ihaventreadyournovelyet.,.,2.表示从过去到现在曾经发生过或经历过某事，表达一种经验或经历，常与副词ever,never,once,twice,before等连用,1.Haveyoueverseenhimbefore?2.WehaveeverbeentoHainanmanytimes.3.Ihaveneverseenyoubefore.,.,3.常与for或since连用。For后接一段时间；since后接过去的点时间或表示过去时间的时间状语从句。,1.Ithasntrainedsincetwomonthsago.2.HehasbeeninBeijingforovertenyears.3.Howmanywordshaveyoulearnedsinceyoucamehere?,.,Theyhavebeeninthiscountryformorethan3years.Theconcerthasbeenonforhalfanhour.Theyhavebeenoffforalongtime.,.,四.使用现在完成时应注意的几点：,1.have(has)beento表示“曾经去过或到过某地”，表示一种经历，现在可能还在那里，也可能不在那里了。它可以与ever,never,once,twice等连用。1.IhavebeentoAustraliathreetimes.2.Hassheeverbeenthere?,.,2.have(has)goneto表示“某人去某地了”说明那个人不在说话处，其主语常用第三人称。Ididntseeyourfather.Whereishe?HehasgonetoAustralia.,.,2.点（瞬间）动词或非延续性动词：,buy,borrow,leave,join,die,arrive,come,go,begin,start,get,become,lose等，它们不能和表示一段时间的时间状语连用。如：for+一段时间，since引导的表示一段时间的时间状语,.,用延续性动词或状态动词代替非续性动词。,buy-have/borrow-keep/becomebe/diebedead/marry-bemarried/start(begin)-beon/end(finish)-beover/join-bein/arrive(reach,getto,)-bein/leave-beoff（away）/1.Ihavekeptthebookforamonth.2.Shehashadthebikeforoverayear.,.,(误)Hehasarrivedhereforthreedays.(正)Hehasbeenhereforthreedays.,.,使用“Itis/ithasbeen+时间+since+过去时态的句子”结构或(时间have/has+passed+since+过去时态的句子”结构表示以since引导的时间状语从句中的动作自发生以来已经有一段时间了。It后面的be动词常用一般现在时，但有时也可以用一般将来时或一般现在时。,.,1.Itisalongtimesincetheysaweachotherlast.2.Howlongisitsinceyoutookpartintheorganization?3.Ithasbeen3yearssinceIlivedhere.4.Itwillbe8yearsnextmonthsinceIbecameateacher.,.,3.与ever,never,just,always等表示不确定的时间副词连用时,可用现在完成时也可用一般过去时。Haveyoueverheardofsuchaman?（现在完成时。）Didyoueverhearofsuchaman?（一般过去时。）4.终止动词的否定式可与for或since引导的表示一段时间的副词短语或状语从句连用。Ihaventseenherforfiveyears.,.,现在完成时专练,()1.NeitheryounorLily_totheGreatWall.A.havegoneB.haswentC.hasbeenD.havebeen()2.Where_you_yesterday?A.havebeenB.havegoneC.didgoD.weregone()3.MrBlack_hereforthreeyearssincehecametoChina.A.worksB.workedC.hasworkedD.hadworked,C,C,C,.,()4._fortwomonths.A.ThemeetinghasbegunB.HisfatherhasboughtthecarC.MybrotherhasbecomeadoctorD.Shehasworkedhere()5.A:_Jim_toEngland?B:Yes,hellbebacknextweek.A.Does,goB.Has,beenC.Has,goneD.did,go,D,C,.,()6.A:Howlonghashebeenlikethis?B:_.A.FortwodaysB.SincetwodaysC.TwodaysagoD.Fortwodaysago()7.A:“WhereisLucy?”B:“She_tothelibraryjustnow.”A.goesB.wentC.hasgoneD.isgoing,A,B,.,()8.A:Whosdonebestinthehistoryexamthisweek?B:Lily_.A.isB.doesC.wasD.has()9.IcantopenthedoorbecauseI_mykeys.A.lostB.havelostC.willlose,D,B,.,()10.Themeeting_forfiveminutes.A.hasbegunB.hadbegunC.hadbeenonD.hasbeenon填空1.TheGreens_(be)heresincetwoyearago.2.Iwontgotoseethefilmtonight,becauseI_myticket.(lose),D,havebeen,havelost,.,Theybegantocooktwominutesago.(同义句)They_fortwominutes*Thebookshopclosedhalfanhourago.Thebookshop_forhalfanhour.5.They_(marry)for2years.,havecooked,hasbeenclosed,havebeenmarried,.,现在完成时专练(二),()1Theman_in1992,he_fortenyears.A.died,wasdeadB.died,hasbeendeadC.was,head,hasdiedD.wasdead,hasbeendied()2They_inthisschoolsincethey_tothiscityin2000.A.havestudied,havecomeB.havestudied,cameC.studied,cameD.werestudying,havecome,B,B,.,()3HowlongcanI_thisbook?-Twoweeks.A.borrowB.keepC.lendD.return()4Ihave_amemberofGreenerChinasincethreeago.A.becomeB.becameC.beenD.joined,B,C,.,()5-Haveyoufinishedyourwork_?-Yes,Ihave_doneit.A.yet,yetB.already,alreadyC.already,justD.yet,just()6TheGreenshave_theirhometown_1990.A.left,sinceB.left,forC.beenawayfrom,afterD.beenawayfrom,since.,D,D,.,()7Wherehaveyou_?Ididntseeyoujustnow.A.beenB.goneC.beentoD.goneto()8-WheresBob?-He_Pariswithhissister.Hellbebackintwoweeks.A.hasbeentoB.hasgonetoC.comesfromD.wentto,A,B,.,9Hebeganhisclasstenminutesago.=Hisclasshas_fortenminutes.()10Howlonghaveyou_thisbike?A.boughtB.hadC.borrowedD.got()11Liliehas_GetoB.gonetoC.beentoD.beenin,beenon,B,D,.,()12Theteacherisnthere.He_totheoffice.A.wentB.willgoC.hasgoneD.isgoing.()13“_you_thefilmy