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11.18 现在进行时

     现在进行时的基本用法:
     a. 表示现在( 指说话人说话时) 正在发生的事情。
       We are waiting for you.
     b. 习惯进行:表示长期的或重复性的动作,说话时动作未必正在进行。
       Mr. Green is writing another novel. 
       (说话时并未在写,只处于写作的状态。)
       She is learning piano under Mr. Smith.
     c. 表示渐变的动词有:get, grow, become, turn, run, go, begin等。
       The leaves are turning red.
       It's getting warmer and warmer.
     d. 与always, constantly, forever 等词连用,表示反复发生的动作或持续存在的状态,往往带有说话人的主观色彩。
       You are always changing your mind.

    典型例题
      My dictionary ___, I have looked for it everywhere but still___ it. 
     A. has lost, don't find   B. is missing, don't find C. has lost, haven't found  D. is missing, haven't found.  
      答案D. 前句是一个仍在持续的状态,应用进行时,由于没有找到,其影响仍然存在,应用完成时,瞬间动词用于否定式时可用于完成时。

上一条11.17 将来完成时 下一条11.19 不用进行时的动词

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