初中英语语法-被动语态.ppt

文档介绍：中考语法精讲——被动语态
被动语态的基本构成：
be+动词的过去分词
（be+done)
am/is/are +done
We clean the classroom every day.
The classroom is cleaned by us every day.
He put on a coat.
A coat was put on by him.
was/were+done
He made the kite.
The kite was made by him.
 shall/will /be going to+ be done
They will plant trees tomorrow.
Trees will be planted by them tomorrow
He is going to write a letter to his mother.
A letter is going to be written to his mother by him.
被动语态的用法
1. 不知道动作的执行者是谁。
这块手表是中国制造的。
This watch is made in China.
2. 没有必要指出动作的执行者
每年都应该种更多的树。
Many trees should be planted every year.
3. 需要强调或突出动作的承受者。
世界上越来越多的人说汉语。
Chinese is spoken by more and more people in the world.
4. 句子的主语是动作的承受者。
许多房屋被冲走了。
Many houses were washed away by the flood.