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2014-02-11 20:03:12

•   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 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。

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  2014-02-11 20:03:12

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