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如何把主动语态的宾语移到句首被动语态的主语

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主动语态变被动语态的方法:

1、主动语态中的宾语变被动语态中的主语;

2、主动语态中的动词由主动结构变被动结构,即be +及物动词的过去分词;时态变化通过be的各种时态形式表现出来。如

1)、一般现在时的被动语态:am / is /are +动词的过去分词;

2)、一般过去时的被动语态:was /were +动词的过去分词;

3)、一般将来时的被动语态:will be+动词的过去分词;

4)、含有情态动词的被动语态:情态动词+be +动词的过去分词;

3、主动语态中的主语变被动语态中by的宾语(是代词时要用宾格)。

如:

We (主语)speak(谓语) Chinese(宾语) . ( 主动语态)

Chinese is spoken by us . (被动语态)

They(主语) planted(谓语) many trees(宾语) last year . (主动语态)

Many trees were planted by them last year . ( 被动语态)

The workers (主语)will build(谓语) a bridge (宾语))over the river next year. (主动语态)

A bridge will be built by the workers over the river next year. (被动语态)

He (主语) can draw(谓语) a cat (宾语). (主动语态)

A cat can be drawn by him . (被动语态)