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 oclock;
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 havent left here for 3 years. I havent 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, put on→ wear
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， ；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.

受用

不错

再写广泛一点就更好了，

写常见的就行