短暂性动词和延续性动词.ppt

文档介绍：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。
,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?
、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.
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, get up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．
. He has come back.
The film has begun.
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．
. I haven’t heard from Uncle Wang for a long time.
We haven’t seen him since 1992.
She hasn’t left home all her life.
3、还可改用一般过去时来表达．
. He came back a week ago.
4、也可用“It is ﹢一段时间﹢since…”句型
来表达．
. It is a week since he came back.
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,
put on ------ wear,
catch/get a cold ------ have a cold,
come/go/become ------ be.
②、转换成 be﹢名词;
join the Party ------ be a Party member,
join the army ------ be a soldier,
go to school ------ be a student.
③、转换成be + 介词短语 :
go to school ------ be in school,
join the army ------ be