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1、短 暂 性 动 词和延 续 性 动 词延续性动词表示能够延续的动作,这种动作可以延续下去或产生持久影响。如:learn,work,stand,lie,know,walk,keep,have,wait,watch,sing,read,sleep,live,stay等。终止性动词也称非延续性动词、瞬间动词或短暂性动词,表示不能延续的动作,这种动作发生后立即结束。如open,close,finish,begin,come,go,arrive,reach,getto,leave,move,borrow,buy等。一.延续性动词表示能
2、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,since5daysago;howlong;foralongtime等。例:Hehaslivedherefor6years. Youcankeeptheboo
3、kfor5days.Istayedtherefor2weekslastyear. Howlongdidyoustaytherelastyear?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; 例:Hedied5yearsago. 否定的终止性动词可以与表示时间段的时间
4、状语连用。例:Ihaven`tleftherefor3years.Ihaven`theardfromhimfor3weeks.短暂性动词也称做终止性动词、非延续性动词或瞬间动词,表示动作不能延续,只是一瞬间就结束的动作.常见的短暂性动词有:come,go,arrive,reach,see,hear,close,open,leave,begin,start,lose,buy,fall,join,die,become,borrow,getup等.用法:1、它们可以用于完成时态,说明某个动作的结果还存在.e.g.Hehascome
5、back.Thefilmhasbegun.2、这类动词不能和表示一段时间的状语连用,但在否定句中,非延续性动词也可以用表示一段时间的状语来修饰.e.g.Ihaven’theardfromUncleWangforalongtime.Wehaven’tseenhimsince1992.Shehasn’tlefthomeallherlife.3、还可改用一般过去时来表达.e.g.Hecamebackaweekago.4、也可用“Itis﹢一段时间﹢since…”句型来表达.e.g.Itisaweeksincehecameback.
6、非延续性动词可以转换成延续性动词,主要有以下几种:①、用相应的延续性动词;buy------have,borrow-----keep,puton------wear,catch/getacold------haveacold,come/go/become------be.②、转换成be﹢名词;jointheParty------beaPartymember,jointhearmy------beasoldier,gotoschool------beastudent.③、转换成be+介词短语:gotoschool------b
7、einschool,jointhearmy------beinthearmy.④、转换成be+adj./adv.:die------bedead,finish------beover,begin/start------beon,leave(…)------beaway(from),close------beclosed,open------beopen,fallasleep------beasleep.巩固练习:(同义转换,每空一词)1.LiLeijoinedthePartythreeyearsago.LiLeithePar
8、tythreeyearsago.LiLeithePartythreeyears.threeyearsLiLeijoinedtheParty.ThreeyearsLiLeijoinedtheParty.2.MyfatherleftGuchenglastweek.MyfatherGucheng