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。

延续性动词的用法特征

1.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。表示"段时间"的短语有：for two years, during the past three years, since last year, how long等。

如：I have learned English since I came here.

2.延续性动词不能与表示短暂时间的"点时间"状语连用。

如：It rained 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.

瞬间动词，也叫终止性、结束性动词。表示动作的结果，或表示短暂性、一次性的动作。

如：close, leave, buy, join, become, begin, fall(掉下)，fall ill(病倒)，get to(know), come, go, see, hear, hear from, catch a cold等。

这类动词可以用于完成时，但在一般情况下，不能加上表示一段时间的状语或疑问词，但是在否定句中，瞬间动词也可以和表示一段时间的状语、连词连用，它的含义是好长时间没进行这个动作了，没进行此动作的状态就可以延续。

注意：终止性动词若需要表示一段时间，英语中须用替换词来替换该类动词。如：

come           be here

leave           be away

die               be dead 

begin           be on

open            be open

buy              have had

join              a member of

arrive           be here

a)用延续性动词代替终止性动词

1、用have代替buy

My brother has had(不能用has bought) this bike for almost four years.

2、用keep或have代替borrow

I have kept(不能用have borrowed) the book for quite a few days.

3、用be替代become

How long has your sister been a teacher?

4、用have a cold代替catch a cold

Tom has had a cold since the day before yesterday.

5、用wear代替put on

b)用“be＋形容词”代终止性动词

1、be＋married代marry

2、be＋ill代fall (get) ill

3、be＋dead代die

4、be＋asleep代fall (get) asleep

5、be＋awake代wake/wake up

6、be＋gone代lose,die,sell,leave

7、be＋open代open

8、be closed代close/shut

9、be＋missing(gone,lost)代lose

c)用“be＋副词”代终止性动词

1“be＋on”代start,begin

2“be＋up”代get up

3“be＋back(to)”代return to,come back to,go back to

4“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 to

2.用be in the army 代替join the army

3.“be in/at +地点”代替move to

瞬间动词转换为延续性动词的常见的有：

leave→be away, borrow→keep, buy→have, begin/start→be on, die→be dead, move to→live in, finish→be over, join→be in/be a member of, open sth.→keep sth. open, fall ill→be ill, get up→be up, catch a cold→have a cold。

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终止性动词。

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+ 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。

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;

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，没有发生的事就可以延续下去。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
　　leave --- be away, borrow --- keep, buy --- have, begin/start --- be on, die --- be dead, finish --- be over, join --- be in+组织机构, be a member of+组织机构, open sth --- keep sth open, fall ill --- be ill, get up---be up, catch a cold --- have a cold, come here --- be here, go there --- be there, become --- be, come back --- be back, fall asleep --- be asleep, get to/ arrive/reach --- be (in), leave --- be away from, get to know --- know, go (get) out →be out， put on→ wear；catch a cold →have a cold等。 例: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. He joined the Party 2 years ago. -----He has been in the Party for 2 years. I bought the book 5 days ago. ---- I have had the book for 5 days.

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, get to, leave, move, borrow,buy等。
一、延续性动词
　　延续性动词表示的动作不但可以延续，而且可以产生持久的影响。常见的这类动词有：be，have，keep，know，learn，lie，live，read，sing，sleep，stand，stay，wait，walk，watch等。延续性动词的用法很广，但常见于现在完成时中的句子中，且常与for，how，long，since等引导的表示一段时间的状语或状语从句连用。
举例
　　1．I have learned more than 1，000 Chinese words since I came to China． 　　自从来到中国，我已经学会了l，000多个汉字。 　　2．We have lived in Linqing since we came here．自从来到这儿，我们就一直住在临清。 　　3．I have kept the picture for about three years．这张画我保存了大约三年。 　　延续性动词又称持续性动词，它所表示的是一种持续的动作。　　延续性动词可与表示一段时间的时间状语连用,而非延续性动词不行 　　(1) How long have you had it? 这辆车你买了多久了？

[说明] 在英语中，非延续性动词不能与表示一段时间的时间状语连用。所以我们不说

“How long have you bought it?”因为how long 是“多久”的意思，而buy是非延续性动词，二者不相配。

常用的非延续性动词有：become, begin, buy, borrow, arrive, come, die, fall,finish, get to know, go, join, leave, marry, start, stop等。

为了表达这种意思，我们常用相应的延续性动词 have,keep 或短语 “be+名词，形容词，位置副词，介词短语” 来代替非延续动词。

如：become---be, begin---have/ be on, borrow---keep, buy---have,come--- be here/there/in…, die---be dead, finish---be over, join---be in, 　　leave---be away等。

His father has been dead for one year.(不能用die)

My brother has been in the army for two years.(不能用join)

I have kept the book for two weeks. (不能用borrow)我借这本书两个星期了。

二、非延续性动词

可用与现在完成时态,但由于动作是瞬时间完成的所以不能与for或since引出的时间状语连用.英语中常见的非延续性动词在完成时态中可改为相应的表示延续性的动词或短语,这时可与表示一段时间的的状语连用.

He has been a Party member for two years.

他已经入党两年了

He has joined the Party for two years. (错误）

由于动作是瞬时间完成的所以不能与for或since引出的时间状语连用

小练习：下面哪句话有问题，你知道吗？

Now let's do some exercise!

I have bought this computer for a month.

I have come here for two years.