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do和have的區(qū)別和用法

回答
瑞文問答

2024-10-13

have的用法;
have +過去分詞,構成完成時態(tài)。例如:
He has left for London. 他已去了倫敦。
By the end of last month, they had finished half of their work.  上月未為止,他們已經完成工作的一半。

擴展資料

  have + been +現在分詞,構成完成進行時。例如:

  I have been studying English for ten years. 我一直在學英語,已達十年之久。

  have +been +過去分詞,構成完成式被動語態(tài)。例如:

  English has been taught in China for many years. 中國教英語已經多年。

  do 的用法

  構成一般疑問句。例如:

  Do you want to pass the CET? 你想通過大學英語測試嗎?

  Did you study German? 你們學過德語嗎?

  do + not 構成否定句。例如:

  I do not want to be criticized.  我不想挨批評。

  He doesn't like to study.  他不想學習。

  n the past, many students did not know the importance of English.

  過去,好多學生不知道英語的重要性。