英语语法

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【英语语法】过去完成时的用法

【英语语法】过去完成时的用法,珠海IBS英语学校编辑和大家分享过去完成时的用法和举例说明,请阅读下文.

【英语语法】过去完成时的用法,珠海IBS英语学校编辑和大家分享过去完成时的用法和举例说明,请阅读下文。


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什么是过去完成时?


      过去完成时是一种相对时态,即以某一过去吋间作参照,过去完成时表示的动作发生在这一过去时间之前,所以我们可以简单地用"过去的过去"这五个字来理解过去完成吋态。如:


      1. He______more than 5000 English words when he entered the university  at the age of 15.


      A. has learned       B. would have learned       C. learned       D. had learned


      【分析】答案选D。因为上大学是过去,学了五千个英语单词是在上大学之前,即"过去的过去",所以用过去完成吋。


      【注】用于某些特殊句型:no sooner''''''than , hardly''''''when , scarcely''''''before等。如:


      We had no sooner set out than a thunderstorm broke.


      我们刚出发就遇到了大雷雨。(主句谓语要用过去完成时)


      He had hai'dly arrived when it began to snow. 他一到,天就下起雪来了 。(主句谓语要用过去完成时)


      Scarcely had I arrived at the station before the train left.


      我剛抵达车站,火车就走了 。(主句谓语要用过去完成时)


      2.When the old man______to walk back to his house , the sun______itself behind the mountain.


      A. started;had already hidden      B. had started ;had already hidden


      C. had started;was hiding          D. was starting ;hid


      【分析】答案选A。根据句意,"开始回房子"发生在过去,"太阳落山"是在"开始回房子"之前,故过去的过去。


      3.Father______for London on business upon my arrival,so I didn't see him.


      A. has left     B. left     C. was leaving     D. had left


      【分析】答案选D。根据"我没见到他"可知,"在我到达"前"父亲已经去伦敦"了,即父亲去伦敦发生在"过去的过去",故用过去完成时。


      4.The policeman 's attention was suddenly caught by a small box which______placed under the Minister 's car.


      A. has been      B. was being      C. had been      D. would be


      【分析】答案选C。因为这个小盒子"被放在部长车下"发生在"引起警察注意"之前,即"过去的过去",所以用过去完成时。


      5." Hurry up ! Alice and Sue are waiting for you at the school gate. " " Oh ! I______thought they without me."


      A. wen      B. are going      C. have gone      D. had gone


      【分析】答案选D。因为thought(原以为)用的是过去时,所以他们"走了"就是"过去的过去",故用过去完成时。



相关阅读:

什么是情态动词

什么是过去分词

现在分词作定语与动名词作定语的区别


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