现在完成时-The-Present-Perfect-Tense学习资料.ppt
现在完成时-The-Present-Perfect-TenseRide a camel in the desertSurf Go campingWin a lotteryWatch the sunriseEatatarestaurantlikethis(aquarium)GobungeejumpingSleeponasliceofbread/inashoeWhenwetalkaboutlife experience,wewillusethepresentperfecttense.结构：Have/has+done(过去分词过去分词)过去分词规则规则动词（+ed）Surfsurfedsurfedwatchwatchedwatched不规则动词（记忆）Bewas/werebeenRideroderiddenHandout不规则中的相对规则Haveyouever?ThePresentPerfectTense过去发生并且已经完成的动作对现在造成影响或后果，过去某一时间开始并一直持续到现在并且有可能还会持续的动作或状态。Fillinblanks1.Wouldyoulikesomethingtoeat?No,thanks._(I/just/have/lunch)2.DoyouknowwhereJuliais?Yes,_(I/just/see/her)3.WhattimeisJolieleaving?_(She/already/leave)Ihavejusthadlunch.Ihavejustseenher.Shehasalreadyleft.用法：表示过去过去所发生的动作对现在对现在的影响或产生的结果(强调对现在的影响和结果)一般过去时和现在完成时的区别一般过去时和现在完成时的区别Wouldyoulikesomethingtoeat?No,thanks._Ijusthadlunch.Ihavejusthadlunch.Iamfullnow.Idontwanttoeatanything.强调对现在的影响DoyouknowwhereJuliais?Yes,_Ijustsawher.Ihavejustseenher.Interestedintheresult:becauseIvejustseenher,IknowwhereJuliais.PracticeWhatisinthenewspapertoday?Idontknow._(I/not/read/it)Areyoucomingtothecinemawithme?No,_(I/have/already/see/film)Ihaventreadit.Ihavealreadyseenthefilm.Have you ever been to London?No,I havent.And Ive never been to England before.And you?Yes,I have been there twice.John,thisismycousin,Sam.Hi,Sam.Ithinkwevealreadymet.Idontthinkso.HesjustmovedherefromtheUSA.Usage1表示过去所发生的动作对现在的影响或产生的结果(强调对现在的影响和结果)常与already,yet,just,before,recently,lately,ever,never,once/twice/threetimes等表时间的副词搭配使用“仍然，还仍然，还”用在疑问句疑问句和否定句否定句中，放在句末末。Ihaventreadthisbookyet.Haveyouhadbreakfastyet?Already:Yet:“已经已经”通常用于肯定句肯定句中,放在句中句中。Ihavealready readthisbook.“从来不从来不”用在否定句否定句中,放在句中句中。Ishefamous?Ihaveneverheardofhim.EverNever“曾经曾经”通常用于疑问句疑问句和肯定句肯定句中,放在句中句中。Ihaveeverseenthisfilm.HaveyoueverbeentotheUSA?“以前以前”用在完成时中，放在句末句末。haveneverreadthiskindofbooksbefore.JustBefore“刚刚刚刚”用在陈述句陈述句中,放在句中句中。Ihavejustboughtanovel.Already yet everneverjustbefore不是完成时的标志，一般过去时也可以用。now past Ibegan to teach EnglishatthisschoolinJuly,2011.Ihave taught Englishatthisschoolforoveroneyear.Istillworkherenow.用法：表示一个从过去某个时间开始，延续到现在延续到现在并可能持续下去的动作1.Iamadoctor.IbegantoworkwhenIwas22.Now,Iam26.I_(work)forfouryears.2.WewenttotheUSAlastMonday.TodayisMonday.We_(stay)intheUSAsincelastMonday.have workedhave stayedSince:时间点时间点For：时间段：时间段用since和for填空 _twoyears_twoyearsago_lastmonth_1999_yesterday_4oclock_4hours_anhour_wewerechildren_lunchtime_shelefthere_shewasveryyoung_shewasachild_morethantwentyyearsTranslation这些天我都没见到他。Ihaventseenhimthesedays.到目前为止，我还是没收到他的邮件。Sofar/uptonow,Ihaventreceivedhise-mail.在过去的两年里，他只拜访他父母亲一次。Inthepasttwoyears,hehasonlyvisitedhisparentsonce.Usage2常与表示一段时间的时间状语连用。如：sofar（迄今为止）,uptillnow（直到现在）,since,foralongtime（很长时间）,uptopresent（直到现在）,inthepast/inthelastfewyears（在过去的几年里）,thesedays（目前）非延续性动词不能与时间段连用：非延续性动词不能与时间段连用：go/come/begin/start/die/buy/borrow/sell/leave/arrive/receive/become等词语是瞬间动词表示的动作是一时的，等词语是瞬间动词表示的动作是一时的，不能延续，不能与不能延续，不能与for、since等表示一段时间的词连用，等表示一段时间的词连用，也不能用于也不能用于how long引导的疑问句中。引导的疑问句中。如不能说：如不能说：He has borrowed the book for two months.()但可以说：但可以说：He has kept the book for 2 months.或：或：It has been 2 months since he borrowed the book.或：或：Two months has passed since he borrowed the book.这些瞬间动词常与它对应的可以表示时间段的词语进行互换。这些瞬间动词常与它对应的可以表示时间段的词语进行互换。becomebe borrowkeep buyhave begin(start)be on openbe open diebe dead leave-be away come-be here/in go outbe outjoin-be a member/be in begin to study-study注明：非延续性动词在否定结构中可用于现在完成时态：注明：非延续性动词在否定结构中可用于现在完成时态：I havent bought anything for two days.Havebeento/havegoneto此课件下载可自行编辑修改，仅供参考！此课件下载可自行编辑修改，仅供参考！感谢您的支持，我们努力做得更好！谢谢感谢您的支持，我们努力做得更好！谢谢
