初中英语语法:英语语法大全之过去完成时

2011-05-21 08:52:32 中考表示英语
英语语法大全之过去完成时》由留学liuxue86.com编辑整理。本内容整理时间为05月20日,如有任何问题请联系我们。

过去完成时 1)概念:表示过去的过去 ----|-------|-----|---- 其构成是had +过去分词构成。 那时以前 那时现在 2)用法 a.在told, said, knew, heard, thought等动词后的宾语从句。 She said (that) she had nev

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  • 过去完成时

    1)概念:表示过去的过去
    ----|-------|-----|---->其构成是had +过去分词构成。
    那时以前 那时现在

    2)用法
    a.在told, said, knew, heard, thought等动词后的宾语从句。
    She said (that) she had never been to Paris.

    b. 状语从句
    在过去不同时间发生的两个动作中,发生在先,用过去完成时;发生在后,用一般过去时。
    When the police arrived, the thieves had run away.

    c. 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…,未能…"
    We had hoped that you would come, but you didn't.

    3)过去完成时的时间状语before, by, until , when, after, once, as soon as。
    He said that he had learned some English before.
    By the time he was twelve, Edison had began to make a living by himself.
    Tom was disappointed that most of the guests had left when he arrived at the party.

    典型例题
    The students ___ busily when Miss Brown went to get a book she ___ in the office.
    A. had written, leftB,were writing, has left C. had written, had leftD. were writing, had left
    答案D. "把书忘在办公室"发生在"去取书"这一过去的动作之前,因此"忘了书"这一动作发生在过去的过去,用过去完成时。句中when表示的是时间的一点,表示在"同学们正忙于……"这一背景下,when所引导的动作发生。因此前一句应用过去进行时。

    注意:
    had no … when还没等…… 就……
    had no sooner… than刚…… 就……
    He had no sooner bought the car than he sold it.

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