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英语讲义【11】语态被动有方

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英语讲义【11】语态被动有方

  英语动词有主动语态(the active voice)和被动语态(the passive voice)两种形式。如果主语是谓语动词的主宰,这就是主动语态;如果宾语成为动作的执行者,这就是被动语态。

  在下列两个句子中,(a)是主动语态,(b)是被动语态。

  ① a. I have just bought a new book.

   b. A new book has just been bought by me.

  ② a. Tom will invite you to dinner.

   b. You will be invited to dinner by Tom.

  主动转被动语态的步骤

  从主动语态转换为被动语态时,必须按照下列步骤进行:

  ⒈把谓语动词后头的宾语移到句首当主语。如果没有宾语或者不是宾语的句子成分, 就没有新主语;这句话也就不能有被动语态了。

  ⒉如果有两个宾语(即直接宾语和间接宾语),只要把其中一个变成主语即可, 其他一个保留在原位。

  ⒊用助动词be + 过去分词的动词形式,并和主语的人称、数目配合;动词时态也要和主动语态里的配合。

  ⒋如果主动语态中有语气动词(如:must, can, should)等,就以这个语气动词和be + 过去分词连用。

  ⒌把主动语态里的主语移到句末, 但要在它前面加上介词by 。通常,这个by + 主语的短语,都被省略了。

  ⒍如果谓语动词是片语动词(the phrasal verb)的话, 就要把片语动词当一个单位处理。例如:

  ③ a. We must do the work.

    b. The work must be done (by us)。

  ④ a. John gave Anne a pen.

    b. Anne was given a pen by John 或 A pen was given to Anne by John.

  ⑤ a. They have put off the meeting.

  b. They meeting has been put off.

  使用被动语态的情况

  一般上说,我们用主动语态的时候多,用被动语态的时候少。然而,如果我们不知道谁是动作的执行者,我们只有被动语态这条路可走:

  ⑥ A cat was knocked down.

  ⑦ Electricity is widely used in all cities.

  ⑧ The annual sports meet may be held in three months.

  此外,在下列情况下,也最好用被动语态:

  ⒈宾语比主语重要,必须突出,如:

  ⑨ A thief was arrested.

  ⑩ The waste paper has been burnt.

  如果把⑨和⑩改为主动语态,就平淡乏味了:

  △The police arrested a thief.

  △Someone has burnt the waste paper.

  ⒉不方便提到主语;在此情况下, 常用it来引导,如:

  11. It is said that the government will raise the income tax.

  ⒊有些动词多以被动语态出现,如:

  12. All are expected to come early.

  13. The report was based on the findings of a survey.

  

  英语动词有主动语态(the active voice)和被动语态(the passive voice)两种形式。如果主语是谓语动词的主宰,这就是主动语态;如果宾语成为动作的执行者,这就是被动语态。

  在下列两个句子中,(a)是主动语态,(b)是被动语态。

  ① a. I have just bought a new book.

   b. A new book has just been bought by me.

  ② a. Tom will invite you to dinner.

   b. You will be invited to dinner by Tom.

  主动转被动语态的步骤

  从主动语态转换为被动语态时,必须按照下列步骤进行:

  ⒈把谓语动词后头的宾语移到句首当主语。如果没有宾语或者不是宾语的句子成分, 就没有新主语;这句话也就不能有被动语态了。

  ⒉如果有两个宾语(即直接宾语和间接宾语),只要把其中一个变成主语即可, 其他一个保留在原位。

  ⒊用助动词be + 过去分词的动词形式,并和主语的人称、数目配合;动词时态也要和主动语态里的配合。

  ⒋如果主动语态中有语气动词(如:must, can, should)等,就以这个语气动词和be + 过去分词连用。

  ⒌把主动语态里的主语移到句末, 但要在它前面加上介词by 。通常,这个by + 主语的短语,都被省略了。

  ⒍如果谓语动词是片语动词(the phrasal verb)的话, 就要把片语动词当一个单位处理。例如:

  ③ a. We must do the work.

    b. The work must be done (by us)。

  ④ a. John gave Anne a pen.

    b. Anne was given a pen by John 或 A pen was given to Anne by John.

  ⑤ a. They have put off the meeting.

  b. They meeting has been put off.

  使用被动语态的情况

  一般上说,我们用主动语态的时候多,用被动语态的时候少。然而,如果我们不知道谁是动作的执行者,我们只有被动语态这条路可走:

  ⑥ A cat was knocked down.

  ⑦ Electricity is widely used in all cities.

  ⑧ The annual sports meet may be held in three months.

  此外,在下列情况下,也最好用被动语态:

  ⒈宾语比主语重要,必须突出,如:

  ⑨ A thief was arrested.

  ⑩ The waste paper has been burnt.

  如果把⑨和⑩改为主动语态,就平淡乏味了:

  △The police arrested a thief.

  △Someone has burnt the waste paper.

  ⒉不方便提到主语;在此情况下, 常用it来引导,如:

  11. It is said that the government will raise the income tax.

  ⒊有些动词多以被动语态出现,如:

  12. All are expected to come early.

  13. The report was based on the findings of a survey.

  

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