被动语态 (3).ppt

被动语态
构成：1 主语+be+ .
2 主语+ will (can…) + be + .
3 主语+be +being + .
4 主语+ have + been + .
has
had
特殊使用
1. make sb. do sth./ see sb. do
The boss made Tom work 12 hours a day.
Tom was made to work 12 hours a day.
2. give sb. sth./ tell sb. sth. (带有双宾语的)
I give Jim a book.--- Jim is given a book.
A book is given to Jim.
help him.--He is helped by teachers.
4　含有动词短语的句子
We should take care of the old man.
The old man should be taken care of (by us).
5 　不定式的被动语态结构为“to be done”
My bike doesn’t work. It needs to be mended.
6 物 + need + doing （主动的形式表被动的含义）
My bike needs mending.
My bike needs to be mended.
7. too… to… 句型
The problem is too difficult to solve.
8. be worth doing(值得……) 句型
This book is worth reading.
。（smell,taste,sound…,sell,write…）
The soup tastes terrible.
This kind of shirts sells well.