概念:•一般过去时表示在过去某个时间发生的动词或存在的状态，也表示过去经常或反复发生的动作。e.g.Hecamehereyesterday.•现在完成时表示过去的动作（或状态）对现在产生的影响和结果e.g.Hehasbrokenhisbottle.一般过去时和现在完成时的区别：1）构成不同TomwenttoLondonlastyear.LilyhasbeentoLondontwice.一般过去时的谓语动词用过去式，现在完成时的谓语用“助动词have/has+过去分词”一般过去时和现在完成时的区别：一般过去时的时间状语：一般过去时的时间状语：yesterday,once,lastweek,...ago,in1980,inOctober,justnow等具体的时间状语。现在完成时的时间状语：现在完成时的时间状语：for,since,sofar,ever,never,just,yet,already等不确定的时间状语。一般过去时常与具体的时间状语连用，现在完成时常与模糊的时间状语连用，或无时间状语。1.He___________(wait)foranhour.2.I_______________(notfinish)theworkyet.3.______you______(know)himsincethen?4.I___________(nothear)frommybrotherforalongtime.5.We___________(be)theremanytimessince3yearsago.Fillintheblankswiththecorrectformsoftheverbs.haswaitedhaven’tfinishedHaveknownhaven’theardhavebeen练习1.--Ihaveseenthefilm"Titanic"already.--When____you____it?A.have,seenB.willseeC.did,seeD.did,seen2.Mr.Black____inChinasincefiveyearsago.A.livedB.haslivedC.livesD.isgoingtolive3.---______UncleWang______(mend)theTVyet?---Yes,he______.---When_____he_____it?---Yesterday.4.---I________(see)thefilm"ChickenRun".---Whereandwhen________you_______(see)it?---Lastweek.5.---____you_____(see)thefilmlastnight?---No,I_____(see)itforseveraltimes.6.---_______you_______(return)thebooktothelibrary?---Notyet.ButI_________(return)itthisafternoon..•6.Tenyearshavepassedsincetheygotmarried.•7.JimhasgonetoBeijingfor2years.•8.Whattimehavethefactoryopened?•9.IhavegonetoChunhuaMiddleSchooltwicehashasbeenindidopenbeentoMakeupsentences,please!golastyeareatthismorningleaveyesterdaygiveamomentagoridejustnowwritelastnightcatchwhenIwasonly10makeamistakethedaybeforeyesterdaypaythenextmorningsweepafterclassUsethegivenwordstomakeadialogue,please!Shanghai,once,lastyearanoldman,help,yesterday,manytimesJointheLeague,lastmonth,foramonthThankyou!2.什么情况下使用has?主语是第三人称单数时，使用has.Hehasfinishedhishomework.Shehasgonehome.Daminghasseenthefilm.Myfatherhashaddinner.其他情况下使用haveIhave…Youhave…Wehave…Theyhave…ExercisesExercises•1.I________(have)lunchalready..•2.Hasthetrain_______(arrive),yet?•3.Tome____never_______(beto)China.•4.Thetwin______just_____(see)myfather.•5.Thetwins____(see)myfatherjustnow.havehadarrivedhasbeentohasseensaweg.1.Hehadhisbreakfastat6:00Hehashadhisbreakfast.2.Whendidyoucomehere?IwatchedthefootballmatchonTVat9:00.
