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, 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. 补充练习：
1. When he arrived at the bus stop, the bus ________ for 20 minutes.
A. has left B. had left C. has been away D. had been away
2. I ______ the League for 5 years so far.
A. joined B. have joined C. have been in
3. The factory ________ since the February of 1988.
A . has been open B. has opened C. was open D. opened
4. Mary and Rose _______friends
since they met in 2000.
A. have made B. have been C. made D. have become
mustnt ________ until he comes back.
A. be away B. leave C. be left
meeting _______ for a week now.
A. has finished B. has ended C. has been over
Gao ______ this school for nearly 5 years.
A. has been in B. has come to C. has taught
______ a teacher for 4 years . A. has been B. has become C. was D. became
9. I ______ home for a week. A. have returned B. have been
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