have +過(guò)去分詞,構(gòu)成完成時(shí)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。">

    do和have的區(qū)別和用法

    回答
    瑞文問(wèn)答

    2024-10-13

    have的用法;
    have +過(guò)去分詞,構(gòu)成完成時(shí)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(kuò)展資料

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

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

      have +been +過(guò)去分詞,構(gòu)成完成式被動(dòng)語(yǔ)態(tài)。例如:

      English has been taught in China for many years. 中國(guó)教英語(yǔ)已經(jīng)多年。

      do 的用法

      構(gòu)成一般疑問(wèn)句。例如:

      Do you want to pass the CET? 你想通過(guò)大學(xué)英語(yǔ)測(cè)試嗎?

      Did you study German? 你們學(xué)過(guò)德語(yǔ)嗎?

      do + not 構(gòu)成否定句。例如:

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

      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(guò)去,好多學(xué)生不知道英語(yǔ)的重要性。

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