如何学好英语语法：使用被动语态应注意的几个问题 ，希望对大家的学习有所帮助。
1. 不及物动词无被动语态。What will happen in 100 years. The dinosaurs disappeared about 65 million years ago.
　　2. 有些动词用主动形式表示被动意义。This pen writes well. This new book sells well.
　　3. 感官动词或使役动词使用省略to的动词不定式，主动语态中不带to，但变为被动语态时，须加上to. 例：make somebody do something→somebody be made to do something
　　see somebody do something→somebody be seen to do something
　　The boss made the little boy do heavy work.→The little boy was made to do heavy work by the boss.

　　4. 如果是接双宾语的动词改为被动语态时，直接宾语（物）作主语，那么动词后要用介词，这个介词是由与其搭配的动词决定。
　　He gave me a book.→A book was given to me by him.
　　He showed me a ticket.→A ticket was shown to me by him.
　　5. 一些动词短语用于被动语态时，动词短语应当看作一个整体，而不能丢掉其中的介词或副词。
　　We can't laugh at him. →He can't be laughed at by us.