使用被動(dòng)語態(tài)應(yīng)注意：
1.不及物動(dòng)詞無被動(dòng)語態(tài)。
What will happen in 100 years.
The dinosaurs disappeared about 65 million years ago.
2.有些動(dòng)詞用主動(dòng)形式表示被動(dòng)意義。
This pen writes well.
This new book sells well.
3.感官動(dòng)詞或使役動(dòng)詞使用省略to的動(dòng)詞不定式，主動(dòng)語態(tài)中不帶to ，但變?yōu)楸粍?dòng)語態(tài)時(shí)，須加上to 。
例：make somebody do something→somebody+ be +made to do something
see somebody do something→somebody +be +seen to do something
A girl saw my wallet drop when she passed by.→My wallet was seen to drop by a girl when she passed by.
The boss made the little boy do heavy work.→The little boy was made to do heavy work by the boss.
4.如果是接雙賓語的`動(dòng)詞改為被動(dòng)語態(tài)時(shí)，直接賓語(物)作主語，那么動(dòng)詞后要用介詞，這個(gè)介詞是由與其搭配的動(dòng)詞決定。
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.
My father bought me a new bike. →A new bike was bought for me by my father.
5.一些動(dòng)詞短語用于被動(dòng)語態(tài)時(shí)，動(dòng)詞短語應(yīng)當(dāng)看作一個(gè)整體，而不能丟掉其中的介詞或副詞。
We can't laugh him. →He can't be laugh by us.
He listens to the radio every day. →The radio is listened to by him every day.
The nurse is taking care of the sick man. →The sick man is being taken care of by the nurse.