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初中英语知识点归纳:主动语态与被动语态

来源:101教育网整理 2017-06-05 字体大小: 分享到:

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  初中英语知识点归纳:主动语态与被动语态

  语态表示主语和谓语的关系。语态有两种:主动语态和被动语态。如果主语是动作的执行者,或者是说动作是由主语完成的,要用主动语态,如:We speak Chinese in China.在中国我们说汉语;如果主语是动作的承受者,或者是说动作不是由主语而是由其他人完成的,则用被动语态,如:Chinese is spoken by us in China.在中国汉语被我们说。

  一、主动语态改成被动语态方法

  把主动语态改为被动语态非常简单,可以遵循以下几个步骤:

  1. 将主动语态的宾语作被动语态的主语;

  2. 谓语动词变为“be+及物动词的过去分词”,并通过be的变化来表达出不同的时态;

  3主动语态的主语变为介词by的宾语,组成介词短语放在被动结构中的谓语动词之后。(有时by的短语可以省略); 例:1. Bruce writes a letter every week. →A letter is written by Bruce every week.

  二、被动语态的用法:

  1. 一般现在时的被动语态构成:is / am / are + 及物动词的过去分词   Our classroom is cleaned everyday.

  2. 一般过去时的被动语态构成:was / were + 及物动词的过去分词   A new shop was built last year.

  3. 现在完成时的被动语态构成:has / have + been + 及物动词的过去分词   This book has been translated into many languages.

  4. 一般将来时的被动语态构成:will+ be + 及物动词的过去分词     Many more trees will be planted next year.

  5. 含有情态动词的被动语态构成:情态动词+ be + 及物动词的过去分词   Young trees must be watered often.

  6. 现在进行时的被动语态构成:am / is / are + being + 及物动词的过去分词   Uncle Wang is mending my bike now.→   My bike is being repaired by Tom now.

  7. 不定式的被动语态:to + be + 及物动词的过去分词   There are two books to be read. →   There are twenty more trees to be planted.


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