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2020年中考英语知识点之过去完成式的形式

2019-10-08 17:13:47中考网编辑
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  中考网整理了关于2020年中考英语知识点之过去完成式的形式,希望对同学们有所帮助,仅供参考。

  过去完成式的形式如下:

  had + past participle

  过去完成式是不能单独用的。我们用的时候,必须有另一个事件。也就是说,假如我们有两件事 A 和 B,两件事都发生在过去,但 A 发生在 B 以前,A 应该用过去完成式,B 则用过去式。以下是几个例子:

  (1) 他到台湾以前,曾学过中文。

  He had studied Chinese before he came to Taiwan.

  (2) 他念大学以前,曾前工作过。

  He had worked before he decided to go to college.

  (3) 我写这篇有关爱尔兰的小说以前,曾去过爱尔兰。

  I had been to Ireland before I wrote this book about Ireland's people.

  (4) 我在上大学以前,已经学过微积分。

  I had studied calculus before I got into college.

  (5) 周一以前,已经下过雪了。

  It had already snowed before Monday.

  如果我们要强调较早发生事件的连续性,我们可以用过去完成进行式。占去完成进行式和现在进行式惟一不同的地方是 verb to have 的地方一定要用had 。以下是一些过去完成进行式的例子:

  1. I had been watching TV before you called me.

  2. I had been working hard in a company for many years before I went to college.

  3. He had been studying before he went to class.

  4. He had been driving all day before he went to sleep.

 

 

 

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