高一英语被动语态北师大版

三、被动语态的用法
(1)不知道或没有必要说明动作的执行者是 谁。
例如：Some new computers were stolen last night.
一些新电脑在昨晚被盗了。 (不知道电脑是谁偷的) This book was published in 1981. 这本书出版于1981年。
(2)强调动作的承受者，而不强 调动作的执行者。
? They are having dragon boat races to celebrate the Dragon Boat Festival.
? The boy has already completed the task. ? People can either boil or fry sweet dumplings.
三、 被动语态的各种句型：
Ｔhe song is liked by young people. ( 肯定句) 否定句 :
Ｔhe song isn ' t liked by young people 一般疑问句 :
Is the song liked by young people ? 特殊疑问句 :
Who is the song liked by ?
I am reading a book. A book is being read by me. They were playing a game at 8'o clock yesterday morning A game was being played by them at 8'o clock yester morning. I bought a book yesterday A book was bought yesterday.
五、含有情态动词的被动语态
含有情态动词的主动句变成被动句时， 由“情态动词＋be＋过去分词”构成. 例如：
We can repair this watch in two days.
This watch can be repaired in two days.
TIthsehyosuhldoubled ddooniteaattoonnccee.
Homework
改主动为被动句：
? Millions of Chinese people celebrate the Mid-Autumn Festival every autumn.
? dozens of boys light lanterns to celebrate the Lantern Festival.
Passive 被( 动语态)
Many people speak English. ( 主动语态) English is spoken by many people.
He opened the door.他开了门。(主动句) The door was opened.门被开了。
被动语态表示主语是动作的承受者， 即行为动作的对象。
例如：The window was broken by Mike. 窗户是迈克打破的。
This book was written by him. 这本书是他写的。
四、主动语态变被动语态的方法
(1)把主动语态的宾语变为被动语态的主语。 I bought a book ( a book was bought by me)
I have finished my homework My homework has been finished . He broke the window. The window was broken by him.
Eห้องสมุดไป่ตู้. 7
1. is celebrated 4. are told 7. are raced
(2)把谓语变成被动结构 (be＋过去分词 ) (根据被动语态句子里的主语的人称和数，以及原 来主动语态句子中动词的时态来决定 be的形式)。 The man killed a tiger. → A tiger was killed by the man .(改的过程 中要注意时态和语态两个方面 ) .
2. is splashed 5. is related 8. are launched
3. are carried 6. are washed
Ex. 9 1. depends on 4. mark 7. was saved
2. was lit 5. celebrate 8. including
3. has decorated 6. share
二、被动语态的构成
被动语态由“助动词be＋及物动词的过去 分词”构成。人称、数和时态的变化是通 过be的变化表现出来的。
一般现在时：am／is／are＋p.p 一般过去时：was／were＋p.p 一般将来时：will／shall be＋p.p 现在进行时：am／is／are being＋p.p 过去进行时：was/were being＋p.p 现在完成时：have／has been＋p.p