成考英语基本文法复习资料第四章(3)

来源:
江西成考网
发布日期
2007年09月14日

摘要:  第四章 完成式(Perfect Tense)   4§1 现在完成式(Present Perfect Tense)   完成式的形式是 verb to have + past participle,每一个动词,都有过去式和过去分词,以下就是一些例子:   原式   过去式   过去分词(past participle)   go went gone   come came come   see saw seen   do did done   watch watched watched   g

以下是这类的例子:

  (1)我已经写了这封信。

  I have already written the letter.

  (2)他已经完成了工作。

  He has already completed the work.

  (3)我已经测试了这个程序。

  I have already tested the program.

  (4)我已经收到了你的信。

  I have already received your letter.

  (5)他已搬到了一个较大的房子。

  He has already moved to a bigger house.

  (6)虽然他很年轻,但他已写了三本小说。

  I thought he is young, he has already written three novels.

  (7)我打了二次电话给他,他都没有回答。

  I called him twice, he has never answered.

  3.现在完成式用来表示一种经验,举例来说,“我曾经到过美国”、“我曾见过李总统”、“我有生以来没有跳过舞”,这些都应该用现在完成式,例如:

  我曾经到过美国。

  I have been to America.

  我曾见过李总统。

  I have seen President Lee.

  我有生以来没有跳过舞。

  I have never danced in my life.

  我看过“双城记”。

  I have read The Tale of Two Cities.

  他曾吃过这种冰淇淋。

  He has tasted this kind of ice cream.

  我未曾见过雪。

  I have never seen snow.

  你曾见过雪吗?

  Have you ever seen snow?

  你登过玉山吗?

  Have you ever climbed Jade Mountain?

  4.现在完成式可以用来表示一件过去常发生的事:

  今年我国已有二次台风。

  We have already had two typhoons so far this year.

  他今年已发表了三篇论文。

  He has already published three