Thepresentperfecttense(现在完成时):have/has+过去分词Hashehandedinherhomeworkyet?HehasjustgonetoBeijing.TheyhaveneverbeentotheUSA.Wehavelivedherefortenyears.pastperfecttense(现在完成时)过去完成时由had+过去分词构成表示在过去的某一时间或动作之前已经发生或完成的动作，它表示“过去的过去”发生的动作构成方式:肯定句:had+动词的过去分词否定句:hadnot(hadn’t)+过去分词一般疑问句:had+主语+过去分词肯定回答:Yes,主语+had.否定回答:No,主语+hadn’t.Ihadhadsupperbefore6yesterdayevening.Ihadnothadsupperbefore6yesterdayevening.Hadyouhadsupperbefore6yesterdayevening?Yes,Ihad./No,Ihadn’t.练习：自从他离开北京我们就一直未曾见过面。WehavenotseeneachothersinceheleftBeijing.昨天我见到王先生了．自从他离开北京我们就一直未曾见过面。IsawMr.Wangyesterday.WehadnotseeneachothersinceheleftBeijing.(1)试翻译：1.我在这工作已经五年了。2.到2005年8月，我在这工作已经五年了。1.Ihadworkedherefor5years.2.Ihadworkedherefor5yearsbyAugust,2005.1.我在你回来之前就已经把晚饭准备好了.2.当我赶到学校时,已经开始上课了.3.在我到家之前他已经走了.Ihadfinishedcookingdinnerbeforeyoucameback.TheclasshadbegunwhenIgottoschool.HehadleftbeforeIgothome.(2)1.她说她从来没有去过巴黎。ShesaidthatshehadneverbeentoParis.2.我觉得我以前见过他。IthoughtthatIhadseenhimbefore.3.Tom说他借了这本书两周了。Tomknewthathehadkeptthebookfor2weeks.(4)过去完成时与现在完成时的区别现在完成时表示的动作发生在过去,但侧重对现在产生的结果或造成的影响,与现在有关.其结构为”助动词have/has+过去分词”;过去完成时则是一个相对的时态,它所表示的动作不仅发生在过去,更强调”过去的过去”,只有和过去的某时或某动作相比较时,才用到它.到目前为止我已经学会了3000个单词.Ihavelearned3000Englishwordssofar.过去完成时与一般过去时的区别1.时间状语不同．过去完成时在时间上强调“过去的过去”，而一般过去时只强调过去某一特定的时间Theyhadarrivedatthestationbytenyesterday.(说明昨天不到１０点就在车站了）Theyarrivedatthestationattenyesterday.(说明１０点到车站的）•WhenIarrivedthere,they___________(leave)already.•Thefilm______________(start),whenwegottothecinema.•I___________(read)thebookbeforeIstartedschool.•Theythoughtthatthey___________(try)theirbest.•Thepoorgirlneversawhergrandpabecausehe__________________(passaway)beforeshewasbornhadlefthadstartedhadreadhadtriedhadpassedaway选择填空()1.---“DidyouseeTomattheparty?”---“No,Marytoldmethathe___bythetimeIgotthere.”A.leftB.wasleavingC.hadleftD.hasleft()2.Hesaidthathe____hislunchyet.A.hadn’thadB.hasn’thadC.wouldn’thaveD.washaving()3.Bytheendoflastyearwe____eachotherfortenyears.A.haveknownB.knewC.wereknowingD.hadknown()4.IsawLiLeiyesterday.Wehadn’tseeneachother______IleftBeijing.A.afterB.beforeC.sinceD.untilcADc()6.Iknew_______thecityforalongtime.A.shehasbeeninB.shehasgonetoC.shehadbeeninD.shehadgoneto()7.Hesaidthathe_______acoldforthreedays.A.hasB.hadcaughtC.hadhadD.hasgot()8.IsawKatewithanewradioinherhandyesterday,butshetoldmeshe______theradiofortendays.A.hasboughtB.hadboughtC.hashadD.hadhadccD()9.Thefilm______whenIgotthere.A.hasbegunB.hadalreadystartedC.beganD.havealreadybegun()10.Thefilm_______fortenminuteswhenwegottothecinema.A.hadalreadybeenonB.hadalreadybegunC.havealreadybeenonD.havealreadybegunAB1.他来我们学校之前已经在那所学校工作了三年.2.当Millie到达电影院的时候,电影已经开始了半个小时了.3.自从他离开南京我们就一直没有见过面.Hehadworkedinthatschoolforthreeyearsbeforehecametoourschool.ThefilmhadalreadybeenonforhalfanhourwhenMilliegottothecinema.Wehaven’tseeneachothersinceheleftNanjing.4.到上学期末,我们已经学历4000多个单词.Bytheendoflastterm,wehadlearntover4,000words.5.贝尔（Bell）在30岁前发明了电话.Bellhadinventedthetelephonebeforehewas30.Theyoungcouplehadlivedhereforthreeyearsbeforehemovedthishouse.6.在他搬进这个房子之前,那对夫妇已经在这儿住了三年了.Morepractice:1.Hetoldmehe________(meet)herbefore.2.ShethankedmeforwhatI_______(do)forherson.3.I________(learn)300wordsbytheendoflastmonth.4.He_______(leave)hisofficewhenIarrivedthere.5.She_________(visit)thecitythreetimesbeforeshediedin1997.6.Theyknewshe___________(borrow)alotofmoneyforherdaughter.7.Greatchanges__________(take)placeinmyhometownsince1996.8.He__________(live)inBeijingsincehewasborn.9.Hetoldmehe________(live)inBeijingsincehewasborn.hadmethaddonehadlearnthadlefthadvisitedhadborrowedhavetakenhaslivedhadlived
