现在完成时与一般过去时的比较.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.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：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。Makeupsentences,please!LastSundayCorrectthepassage:Exercisesforthepresentperfecttense:Choosetherightanswer,please!练习7.IsTomdoinghishomework?No,he___________hishomeworkalready.(finish)8.DoyouknowMissKing?No,butI______________herbefore.(hearof)9.Whataboutthefilm?Sorry,Idon’tknow.I___________ityet.(see)10.________youever_________totheGreatWall?No,never.(go)11.Howdoeshegetonwithhisclassmate?Oh,he___________alotthesedays.(change)12.Helpyourself,please.No,thanks.I’mfull.I_____just_____threeeggs.(eat)Furtherexercises:Usethegivenwordstomakeadialogue,please!