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过去完成时

过去完成时. 常常和 before, after, until, when 等引导的时间状语从句连用，其谓语动词的动作一般用一般过去时。常见句型：（ 1 ） by the time (the end) of + 表示过去时间的短语或句子；（ 2 ） hardly (scarcely) + 过去完成时 +when+ 一般过去时；（ 3 ） no sooner + 过去完成时 +than+ 一般过去时. 现在完成（进行）时.

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过去完成时

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  1. 过去完成时 常常和before, after, until, when等引导的时间状语从句连用，其谓语动词的动作一般用一般过去时。常见句型：（1）by the time (the end) of + 表示过去时间的短语或句子；（2）hardly (scarcely) +过去完成时+when+一般过去时；（3）no sooner +过去完成时+than+一般过去时

  2. 现在完成（进行）时 常用时间状语：this day (week, month, year), so far, for some time, up to now, up to the present, all this year (month, week)

  3. 将来完成时 常常和before, after, until, when等引导的时间状语从句连用，其谓语动词的动作一般表示将来。 常见句型：by the time (the end) of + 表示将来时间的短语或句子

  4. Examples A 1. He said, “ I ______ a lot of new words by the end of last month.” (2002.12) A) had already learnt B) would have already learnt C) have already learnt D) already learnt

  5. 2. The project to clear up the polluted river _______ by the end of next year. (2002.6) A) is being completed B) will have been completed C) has been completed D) will have completed B

  6. 3. The students ____ their papers by the end of this month. (2002.6) A) will have finished B) have been finishing C) have finished D) will be finishing √

  7. have spent 4. Up till now I _______________ (spend) a great deal of money on books, magazines and newspapers. (2003.6)

  8. 5. Until then, his family ____ from him for several months. A) hadn’t heard B) hasn’t heard C) didn’t hear D) hasn’t been hearing √

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