延续性动词和短暂性动词的使用在学习现在完成时的过程中，我们经常碰到类似这样的句子：1）这辆自行车我已经买了五年了。
2）这位老人已经去世五年了。
此时，有些同学就想当然的将之翻译为：1)I have bought this bike for five years.（此句突出“买”的动作。
言下之意，到现在还没有买到。
）2)The old man has died for five years.(此句突出“死”的动作，给人的感觉是“这位老人五年期间一直在死亡线上挣扎”。
)造成这种错误的主要原因是学习者在运用动词的过程中，将瞬间动词与延续性动词混为一谈。
英语中，动词按其动作发生的方式、动作发生过程的长短，可分为延续性动词和瞬间动词。
那么，什么是瞬间动词呢？简而言之，瞬间动词也叫短暂性动词或终止性动词。
这种动词是指它们动作的开始也就意味着动作的结束，所以不能直接跟表示一段的时间状语连用。
如open, close, finish, begin, come, go, arrive, reach, get to, leave, move, borrow, buy, die等。
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。
延续性动词可以用于现在完成时，其完成时态可与表示"段时间"的状语连用。
延续性动词不能与表示短暂时间的"点时间"状语连用.It raind at eight yesterday morning.(误) rain为延续性动词，而at eight表示"点时间"，前后显然矛盾。
如果用延续性动词表示一瞬间的动作，可以借助come, begin, get等终止性动词来表示。
上句可改为：It began to rain at eight yesterday morning.(正)那么，如何使瞬间动词与表示一段时间的状语连用呢？此时，我们可以将这些词转换成意义相近的延续性词（组），从而间接表示其中的意思。
a)用延续性动词代替终止性动词1、用have代替buyMy brother has had(不能用has bought) this bike for almost four years.2、用keep或have代替borrowI have kept(不能用have borrowed) the book for quite a few days.3、用be替代becomeHow long has your sister been a teacher?4、用have a cold代替catch a coldTom has had a cold since the day before yesterday.5、用wear代替put onb)用“be＋形容词”代终止性动词1、be＋married代marry2、be＋ill代fall (get) ill3、be＋dead代die4、be＋asleep代fall (get) asleep5、be＋awake代wake/wake up6、be＋gone代lose,die,sell,leave7、be＋open代open 8、be closed代close/shut9、be＋missing(gone,lost)代losec)用“be＋副词”代终止性动词1“be＋on”代start,begin2“be＋up”代get up3“be＋back(to)”代return to,come back to,go back to4“be here (there)”代come(arrive,reach,get) here或go (arrive,reach,get) there等等d)用“be＋介词短语”代终止性动词1.“be in/at +地点”代替go to /come to2.用be in the army 代替join the army3.“be in/at +地点”代替move to延续性动词与不延续性动词延续性动词与非延续性动词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,for 2 years; since从句,since he came here; since+时间点名词,since last year, since 5 days ago; how long; for a long time等。
例:He has lived here for 6 years. You can keep the book for 5 days. I stayed there for 2 weeks last year. How long did you stay there last year?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：two years ago; at 5 o'clock; 例:He died 5 years ago.否定的终止性动词可以与表示时间段的时间状语连用。
例:I haven't left here for 3 years. I haven't heard from him for 3 weeks.三.延续性动词与非延续性动词之间的转换：1.The old man died 4 years ago. ---- The old man has been dead for 4 years. ---- It is 4 years since the old man died. ----Four years has passed since the old man died.2.He joined the Party 2 years ago. -----He has been in the Party for 2 years.3.I bought the book 5 days ago. ---- I have had the book for 5 days.一．同意句替换（中考必考）短暂动词的一般过去式可以同意替换为延续性动词的现在完成时（for/since ）1. borrow keep have keptHe borrowed my CD yesterday.2. get to know know have knownHe got to know the truth two days ago.3. catch a cold have a cold have had a coldHe caught a cold the day before yesterday.4. buy have have hadHe bought this computer four years ago.5. die be dead have been deadHe died in 1996.6. open be open have been openThe shop opened half an hour ago.7. close be closed have been closedThe factory closed last year.8. get married be married have been married They get married when he graduated from university.9. fall ill be ill have been illLast night ,he fell ill suddenly.10. fall asleep be asleep have been asleepHe fell asleep when he listened to the radio.11. leave sp. Be away from sp. Have been away from sp. He left the school after 18yesrs old.12. return be back have been backHe returned to China after 7 years.13. go to bed be in bed have been in bedHe didn’t go to bed until his mother came home.e to the island be on the island have been on the island Thomas came to the island when he was a child.15. go to sp./come to sp. Be in sp. Have been in sp.He went to Australia for further study last spring.16. come here be here have been hereHe came here last summer.17. go there be there have been thereHe went there with his secretary ten days ago on business.18. go out be out have been outHe went out when his neighbour came to his house.19. get up be up have been upHe got up immediately when he heard the bell ring20. start/ begin be on have been onThe concert started 7minutes ago21. finish/ end be over have been overHe finished all the schoolwork ten minutes ago.22. become be have beenHe become a basketball player when he was a little child.23. join be a member of have been a member ofBe in have been inHe joined the communist part in 1998.二．单项选择题1. When he arrived at the bus stop, the bus ________ for 20 minutes.A. has leftB. had leftC. has been awayD. had been away2. I ______ the League for 5 years so far.A. joinedB. have joinedC. have been in3.The factory _______ since the February of 1988.A . has been open B. has opened C. was open D. opened4.Mary and Rose _______friends since they met in 2000.A. have madeB. have beenC. madeD. have become5.You mustn't ________ until he comes back.A. be awayB. leaveC. be left6.The meeting _______ for a week now.A. has finishedB. has endedC. has been over7.Miss Gao _____ this school for nearly 5 years.A. has been inB. has come toC. has taught8.Ben ______ a teacher for 4 years .A. has beenB. has becomeC. wasD. became9.I ______ home for a week.A. have returnedB. have been backC. returned10.How long _______ he ________ ?A. diedB. has, diedC. has, been dead11.He ________ the car for a week.A. boughtB. has boughtC. has had12.-----How long ____ you _____ ill ? -----Two weeks.A. did fallB. have, fellC. have, been13.Since 2000, he _____ his hometown.A.has leftB.has moved awayC.has been away from14.I'll lend you the book , but you can only _____ it for 2 days.A. borrowB. keepC. take15.The bus _____ on the road for 2 hours so far.A. has stoppedB. stoppedC. has been16.Are you ____ the jacket these days?A. wearingB. putting onC. dressingD. on17.He _______ for 2 hours.A. got upB. has got upC. has been up。