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1、延续性动词与非延续性动词及其转换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;
2、 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，
3、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
4、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；c
5、atch 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
6、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 away2. I _ the League for 5 years so far. A. joined B. have joined C. have been in3.The factory _ since the February of 1988. A . has been open B. has opened C.
7、was open D. opened4.Mary and Rose _friends since they met in 2000. A. have made B. have been C. made D. have become5.You mustnt _ until he comes back. A. be away B. leave C. be left6.The meeting _ for a week now. A. has finished B. has ended C. has been over7.Miss Gao _ this school for nearly 5 year
8、s. A. has been in B. has come to C. has taught8.Ben _ a teacher for 4 years . A. has been B. has become C. was D. became9. I _ home for a week. A. have returned B. have been back C. returned10. How long _ he _ ? A. died B. has, died C. has, been dead11. He _ at eight yesterday afternoon.A. slept B.
9、was sleeping C. has sleep D. had slept12.He _ the car for a week. A. bought B. has bought C. has had 13.-How long _ you _ ill ? -Two weeks. A. did fall B. have, fell C. have, been14.Since 2000, he _ his hometown. A. has left B. has moved away C. has been away from15.Ill lend you the book , but you c
10、an only _ it for 2 days. A. borrow B. keep C. take16.The bus _ on the road for 2 hours so far. A. has stopped B. stopped C. has been17.Are you _ the jacket these days? A. wearing B. putting on C. dressing D. on18.He _ foe 2 hours. A. got up B. has got up C. has been up19. Tom is ill in hospital. He _ a cold for several days. A. is B. catches C. has caught D. has had20.- How long can I _ the book? - Two weeks.A. borrow B. lend C. get D. keepKey:1-5 D C A B B; 6-10 C A A B C; 11-15 B C C C B; 16-20 C A C D D
