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        do和have的區(qū)別和用法

        回答
        瑞文問答

        2021-08-20

        have的用法;
        have +過去分詞,構(gòu)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(jīng)完成工作的一半。

        擴展資料

          have + been +現(xiàn)在分詞,構(gòu)成完成進行時。例如:

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

          have +been +過去分詞,構(gòu)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(jīng)多年。

          do 的`用法

          構(gòu)成一般疑問句。例如:

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

          Did you study German? 你們學(xué)過德語嗎?

          do + not 構(gòu)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(xué)習(xí)。

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

          過去,好多學(xué)生不知道英語的重要性。

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