过去完成时
一、过去完成时的构成:助动词had+动词过去分词
二、过去完成时的用法:
1、表示在过去某一时间或动作以前已完成的行为或存在的状态。即发生的时间是过去的过去。常与“by/before+过去时间”构成的短语连用。
例如:The train had already left before we arrived. 在我到达之前,火车已经开走了。
He said that he had learned some English before. 他说过他以前学过一些英语。
2、表示过去未曾实现的计划、愿望等。这种用法中常用的动词为hope, want,plan,wish, expect, think, intend, mean, suppose等。
例如:We had hoped that you would come, but you didn't.
那时我们希望你能来,但是你没有来。
I had thought that all knew about it.我以为他们都知道这件事呢。
3、表示在过去某一时间点之前已经持续了一段时间的动作或状态,常与for/since引导的表示过去的时间壮语连用。
例如:I had lived in America for two years before I came here .
我来这儿之前在美国住过两年。
巩固练习:
1. You don't need to describe her. I ___ her several times.
A. had met B. have met C. met D. meet
2. ---I'm sorry to keep you waiting.
---Oh, not at all. I ___ here only a few minutes.
A. have been B. had been C. was D. will be
3、The students ___ busily when Miss Brown went to get a book she ___ in the office.
A. had written, left B,were writing, has left
C. had written, had left D. were writing, had left
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