一个保留不动。例如：
We have given him the book.
→He has been given the book.
→The book has been given to him.
3. 带有复合宾语的动词变为被动语态时，只能将宾语变为主语，原来的宾补改为主语补足语。原来省略to的不定式作宾补的，被动语态中要用带to的不定式。例如：
I have told them to help you.→They have been told to help you.
I have made her work hard.→She has been made to work hard.
4. 短语动词变为被动语态时，要注意保持短语的完整性，动词后原有的介词或副词不可遗漏 。例如：
They have refer red to the books.→The books have been referred to (by them).
He has thought of a way of dong it.→A way of doing it has been thought of.
［典例解析］1.Hundreds of jobs ________ if the factory closes.（2001全国春招）
A. lose B. will be lost C. are lost D. will lose
[解析]本句的意思是：如果工厂倒闭，那么将失去数百个工作岗位。lose a job意为”失业”。工作将被失去，要用将来时态的被动语态， 因此排除答案A、C和D，答案选B。
2.The mayor of Beijing says that all construction work for the Beijing Olympics ________ by 2006. (2004北京)
A. has been completed B. has completed
C. will have been completed D. will have completed
[解析]宾语从句中主语all construction work for the Beijing Olympics和谓语动词complete之间有被动关系，
