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1、延续性动词与非延续性动词及其转换。编辑：刘老师动词按其动作发生的方式、发生过程的长短可分为延续性动词与非延续性动词。一.延续性动词表示能够延续的动作,如：learn,work,stand,lie,know,walk,keep,have,wait,watch,sing,read,sleep,live,stay等。延续性动词可以与表示时间段的状语连用。表示时间段的短语有:for+一段时间,for2years;since从句,sincehecamehere;since+时间点名词,sincelastyear,sin
2、ce5daysago;howlong;foralongtime等。二.非延续性动词也称终止性动词、瞬间动词,表示不能延续的动作,这种动作发生后立即结束。如:open,die,close,begin,finish,come,go,move,borrow,lend,buy等。非延续性动词在肯定句中与表示时间点的状语连用，如：twoyearsago;at5o'clock;否定的终止性动词可以与表示时间段的时间状语连用。三.延续性动词与非延续性动词之间的转换：leave---beaway,borrow---keep,
3、buy---have,begin/start---beon,die---bedead,finish---beover,join---bein+组织机构,beamemberof+组织机构,opensth---keepsthopen,fallill---beill,getup---beup,catchacold---haveacold,comehere---behere,gothere---bethere,become---be,comeback---beback,fallasleep---beasleep,ge
4、tto/arrive/reach---be(in),leave---beawayfrom,gettoknow---know,go(get)out→beout，puton→wear；catchacold→haveacold等。例:Theoldmandied4yearsago.----Theoldmanhasbeendeadfor4years.----Itis4yearssincetheoldmandied.----Fouryearshaspassedsincetheoldmandied.HejoinedtheP
5、arty2yearsago.-----HehasbeeninthePartyfor2years.Iboughtthebook5daysago.----Ihavehadthebookfor5days.补充练习：1.Whenhearrivedatthebusstop,thebus________for20minutes.A.hasleftB.hadleftC.hasbeenawayD.hadbeenaway2.I______theLeaguefor5yearssofar.A.joinedB.havejoinedC
6、.havebeenin3.Thefactory________sincetheFebruaryof1988.A.hasbeenopenB.hasopenedC.wasopenD.opened4.MaryandRose_______friendssincetheymetin2000.A.havemadeB.havebeenC.madeD.havebecome5.Youmustn't________untilhecomesback.A.beawayB.leaveC.beleft6.Themeeting______
7、_foraweeknow.A.hasfinishedB.hasendedC.hasbeenover7.MissGao______thisschoolfornearly5years.A.hasbeeninB.hascometoC.hastaught8.Ben______ateacherfor4years.A.hasbeenB.hasbecomeC.wasD.became9.I______homeforaweek.A.havereturnedB.havebeenbackC.returned10.Howlong__
8、_____he________?A.diedB.has,diedC.has,beendead11.He______ateightyesterdayafternoon.A.sleptB.wassleepingC.hassleepD.hadslept12.He________thecarforaweek.A.boughtB.hasboughtC.hashad13.-----Howlong_____you
