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2013年12月英语六级基础语法解析之过去完成时

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发表于 2016-7-11 19:49:40 | 显示全部楼层 |阅读模式
一般过去式和过去完成时的对比:
  (1)过去完成时:
  过去的过去;
  eg:Before I came to Beijing, I had stayed in Shanghai.
  ① 一个句子里有两个谓语动词,一个发生在前,一个发生在后,发生在前的用一般过去时,发生在后的用过去完成时;
  eg:When the police arrived, the thieves had run away.
  ② 表示意向的动词,如hope, wish, expect, think, intend, mean, suppose等,用过去完成时表示"原本…,却未能…"
  eg:We had hoped that you would come, but you didn't.             We had thought that he would take part in the competition,but he didn't.
  ③ 虚拟语气:
  若虚拟的现象与过去事实相反,则用过去完成时;
  eg:If you had come to my birthday party, you would have seen Yaoming.
  虚拟语气中可以用had+过去分词,表示对过去事实的虚拟;
  3. 一般将来时
  (1)shall/will,   shall用于第一人称,常被will 所代替;
  eg:Which paragraph shall I read first?
  (2)be going to +不定式,表示将来;表示要发生的事情有了预先的计划、准备或有迹象表明要发生;
  eg:What are you going to do tomorrow?
  What will you do this afternoon?
  will表示纯粹的将来;
  (3)be +不定式:表将来,按计划或正式安排将发生的事;
  eg:We are to/will discuss the report next Saturday.
  (4)be about to +不定式:意为马上做某事,后面不可以接时间状语;
  eg:He is about to leave for Beijing.
  注意:
  (1)一般现在时有时也可表将来;
  eg:The train leaves at six tomorrow morning.
  ① 趋向性动词come, go, arrive, leave, start, begin, return的一般现在时表将来,主要用来表示在时间上已确定或安排好的事情。
  eg:When does the bus star? It stars in ten minutes.
  ② 在时间或条件句中,用一般现在时表将来;
  eg:I'll write to you as soon as I arrive in Beijing.
  (2)现在进行时也可表将来:通常用于口语,翻译为打算……;
  come, go, start, arrive, leave, stay等词可以用进行时表将来;
          编辑推荐:◇ 2013年12月英语六级基础语法解析汇总

          
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