文档介绍：关于初中英语现在完成时
现在学习的是第1页，共25页
春天还会远吗 ?
will it still be far in spring?
冬天已经来了,
Winter has already come,
现在学习的是第2页，共______________ for two minutes.
borrowed two books last week.
We _______________ the two books for a week.
5. Sally joined the League two years ago.
Sally _______________ the League for two years.
has been away from
has been dead
has been on
have kept
has been in
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延续性动词：表示可以延续一段时间的动作或状态。如：be,drink,fly,eat,keep,lie,live,rain等。
瞬间性动词：表示不能延续的动作，即动作发生后立即结束。如：begin,arrive,borrow,buy,break,close,come,fall,finish,go,leave,lend,mary,reach,receive,open,,start,stop等。 瞬间性的动词是不能持续的，所以不能和表示一段时间的状语连用。
比较延续性动词与瞬间性动词
现在学习的是第12页，共25页
since 用来说明动作起始时间— “自从……”
for用来说明动作延续时间长度— “长达……”
I have lived here for more than twenty years. I have lived here since I was born.
My aunt has worked in a company since 1949. I have not heard from my uncle for a long time.
比较since和for
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二、用since和for填空 years years ago month 1999 o’clock 7__4 hours hour ago were children lunch time she left here 12. He has lived in Nanjing __ the year before last. 13. I’ve known him __ we were children. 14. Our teacher has studied Japanese __ three years. 15. She has been away from the city __ about ten years. 16. It’s about ten years __ she left the city.
since
or
for
现在学习的是第14页，共25页
瞬间性动词例如come,go,leave等，不和表示延续性的时间状语连用，例如for two hours或者是since last month。如果我们想用它们来表达延续性的状态，就要把他们转化成对应的延续性动词。
Verb
Used for a continuous state
Example
buy
have/has had
He has had the watch for over two years.
borrow
have/has kept
She has kept this book for two weeks.
arrive
have/has been in/at
Kitty has been in Nanjing for a month.
leave
have/has been away
She has been away from home for ten years.
join
have/has been in/a member of
Simon has been a member of the Football Club since la