1-142 Sally was invited 被动语态 1

Lesson 1-142 

被动语态: be+done (动词的过去分词）

1. Someone airs the room. (主动语态）

    The room is aired by someone. (被动语态）

2. They clean these rooms.

    These rooms are cleaned by them.

3. He repaired the car.

    The car was repaired by him. 

4. They watered the flowers.

    The flowers were watered by them. 

把主动语态变成被动语态时要注意的三点：

1. 把主动语态中的宾语用作被动语态中的主语；

2. 选择系动词be时，要注意人称、单复数和时态的变化；

      be: am, is , are, was, were, will be 

3. 被动语态中的动词要用动词的过去分词。