1. 不及物動詞無被動語態。
What will happen in 100 years？一百年裡會發生什麼事？
The dinosaurs disappeared about 65 million years ago. 約65萬年前恐龍滅絕。
2. 有些動詞用主動形式表示被動意義。
This pen writes well. 這支鋼筆很好寫。
This new book sells well. 這本新書賣的很好。
3. 感官動詞或使役動詞使用省略to的動詞不定式，主動語態中不帶to ，但變為被動語態時，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. 一個女孩看到我的錢夾掉了當她經過的時候。
The boss made the little boy do heavy work.→The little boy was made to do heavy work by the boss. 這個老闆讓這小男孩乾重活。
4. 如果是接雙賓語的動詞改為被動語態時，直接賓語(物)作主語，那麼動詞後要用介詞，這個介詞是由與其搭配的動詞決定。
He gave me a book.→A book was given to me by him. 他給了我一本書。
He showed me a ticket.→A ticket was shown to me by him. 他給我展示了一張票。
My father bought me a new bike. →A new bike was bought for me by my father. 我父親給我買了一輛新自行車。
5. 一些動詞短語用於被動語態時，動詞短語應當看作一個整體，而不能丟掉其中的介詞或副詞。
We can’t laugh at him. →He can’t be laugh at by us. 我們不能嘲笑他。
He listens to the radio every day. →The radio is listened to by him every day. 他每天都收聽廣播。
The nurse is taking care of the sick man. →The sick man is being taken care of by the nurse.這護士在照顧這個虛弱的男人。
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