初中英语现在完成时和一般过去时课件副本.ppt

现在完成时与一般过去时的比较thepresentperfecttense&thesimplepasttense,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：,一般过去时和现在完成时的区别：,现在完成时是表示过去的动作与现在的联系，主要说明的是现在的情况和状态；而一般过去时则强调动作发生在过去某一时间，与现在不发生联系.e.g.Wehaventseenhimsincelastyear.我们自从去年以来一直未见到他。（现在还未见到）Wedidntseehimlastyear.我们去年没见到他。（现在不一定未见到）Whohasopenedthedoor?谁把门开了？（现在门还开着）Whoopenedthedoor?谁开的门？(指过去，与现在无关。现在门是关着还是开着，没有说明。)Haveyouhadyourlunch?你吃过午饭没有？（意即你现在不饿吗？）Yes,Ihave.吃了。（意即我现在饱了，不要再吃了。）Whendidyouhaveit?你什么时候吃的？（说话人感兴趣的是“吃”这一动作发生在时。）,2）用法不同Ihadsupperanhourago我一小时前吃的晚饭。（表示过去的动作）Ihavejusthadsupper我刚刚吃过晚饭。（强调对现在的影响我不饿）Hewasateacherthen他那时是个教师。（表示过去的状态）Hehasbeenateachersincethen他从那时起一直当教师。（他现在还是教师）,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：for,since,sofar,ever,never,just,yet,till,uptonow,always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。,Makeupsentences,please!,golastyear,eatthismorning,leaveyesterday,giveamomentago,ridejustnow,writelastnight,catchwhenIwasonly10,makeamistakethedaybeforeyesterday,paythenextmorning,sweepafterclass,LastSunday,Correctthepassage:,LastSunday,Tedandhisfatherareathome.Theymovdtoanewhouse.Hisfatherwanttedtoputthebooksinsomeboxes,buthecantfindanyboxes.Tedtelledhimtheboxeswasinthenextroom.Thenheboughttheseboxestohisfather.,moved,wanted,couldnt,told,were,brought,were,Exercisesforthepresentperfecttense:,7.IsTomdoinghishomework?No,he_hishomeworkalready.(finish)8.DoyouknowMissKing?No,butI_herbefore.(hearof)9.Whataboutthefilm?Sorry,Idontknow.I_ityet.(see)10._youever_totheGreatWall?No,never.(go)11.Howdoeshegetonwithhisclassmate?Oh,he_alotthesedays.(change)12.Helpyourself,please.No,thanks.Imfull.I_just_threeeggs.(eat),already,hasfinished,before,havehearedof,yet,haventseen,ever,never,Have,been,thesedays,haschanged,just,have,eaten,Choosetherightanswer,please!,()1.HowlonghasMrTurnerworkedinthisschool?A.30years.B.Sinceitwasopen.C.5years.()2.Whatmonthisitnow?A.October.B.November.C.December.()3.Whosillinhospital?A.Kate.B.MrWu.C.Linda.()4.Howlonghasthemanbeenhere?A.Oneyear.B.halfayear.C.Threemonths.()5.Whatistheteacherdoing?A.Talkingtoaparent.B.givingamathslesson.C.Playingbasketball.,C,B,C,B,A,练习,1.-IhaveseenthefilmTitanicalready.-When_you_it?A.have,seenB.willseeC.did,seeD.did,seen2.Mr.Black_inChinasincefiveyearsago.A.livedB.haslivedC.livesD.isgoingtolive,3.-_UncleWang_(mend)theTVyet?-Yes,he_.-When_he_it?-Yesterday.4.-I_(see)thefilmChickenRun.-Whereandwhen_you_(see)it?-Lastweek.5.-_you_(see)thefilmlastnight?-No,I_(see)itforseveraltimes.6.-_you_(return)thebooktothelibrary?-Notyet.ButI_(return)itthisafternoon.,7.IsTomdoinghishomework?No,he_hishomeworkalready.(finish)8.DoyouknowMissKing?No,butI_herbefore.(hearof)9.Whataboutthefilm?Sorry,Idontknow.I_ityet.(see)10._youever_totheGreatWall?No,never.(go)11.Howdoeshegetonwithhisclassmate?Oh,he_alotthesedays.(change)12.Helpyourself,please.No,thanks.Imfull.I_just_threeeggs.(eat),练习,Furtherexercises:,1.Iambusytheseday.I_(notgo)tothecinemaforweeks.2.Theboyishappybecausehe_(sell)outallthenewspapers.3.They_(live)inShanghaisince1991.4.Greatchanges_(takeplace)inourcountrysince1949.5.MissJane_(teach)uslastyear.She_(teach)inourschoolfor4years.,6.She_already_(do)herhomework.She_(do)ityesterdayevening.7.-_youever_toLondon?-Yes,Ihave.-When_you_(go)there?-Lastyear.8.Who_(take)mydictionaryaway?Icantfinditeverywhere.9.It_tenyearssinceI_(leave)china.10.Al