小学一年级英语语法-一般过去时现在完成时

李婷 1172分享

  小学一年级英语语法 一般过去时现在完成时

  一般过去时现在完成时主要用于:

  1 、表示到现在为止这一时期中发生的动作或情况,即多次动作的总和。

  e.g. We have learnt four English songs this month.

  How many times have you read the novel?

  For many days we haven`t seen each other.

  2 、表示对现在有影响的某一已发生的动作。

  e.g. The delegation has left 代表团已经走了(说明现在不在这里)

  Look, what you have done. 看你干的事。

  与这一时态连用的时间状语有:

  already, yet, just, ever, never, by now, so far, recently, by the end of this month, since, for 短语,连词 since 引导的时间状语从句。

  一般过去时与现在完成时的区别:

  一般过去时:重在说明动作在过去发生时的具体情况(时间、地点、方式、对象、细节等)。

  现在完成时:只提起已发生的动作(事实)及其影响,不说明动作发生时的具体情况。

  cf. Have you had your lunch?

  What did you have for lunch?

  I have ever been to the Great Wall,_and_I went there last summer with my father.

  注:现在完成时表达的动作常具有反复性,故下面一句是错的:

  Have you seen the six thirty`s news program?

  应改为:

  Did you see the six thirty`s news program?

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