第1个回答 2007-04-07
英语中及物动词有两种语态，即主动语态和被动语态。主动语态表示主语是动作的执行者被动语态表示主语是动作的承受者。被动语态由“助动词be+及物动词的过去分词”构成。助动词be有人称、时态和数的变化。
一、 被动语态的用法：
1. 一般现在时的被动语态构成：is / am / are + 及物动词的过去分词
Our classroom is cleaned everyday.
I am asked to study hard.
Knives are used for cutting things.
2. 一般过去时的被动语态构成：was / were + 及物动词的过去分词
A new shop was built last year.
Dinosaur eggs were laid long long ago.
3. 现在完成时的被动语态构成：has / have + been + 及物动词的过去分词
This book has been translated into many languages.
Many man-made satellites have been sent up into space by many countries.
4. 一般将来时的被动语态构成：will+ be + 及物动词的过去分词
A new hospital will be built in our city.
Many more trees will be planted next year.
5. 含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词
Young trees must be watered often.
Your mistakes should be corrected right now.
The door may be locked inside.
Your homework can be handed in tomorrow.
6. 现在进行时的被动语态构成：am / is / are + being + 及物动词的过去分词
Uncle Wang is mending my bike now.→
My bike is being repaired by Tom now.
They are planting trees over there. →
Trees are being planted over there by them.
7. 不定式的被动语态：to + be + 及物动词的过去分词
There are two books to be read. →
There are twenty more trees to be planted.
二、 怎样把主动语态改成被动语态?
把主动语态改为被动语态非常简单，可以遵循以下几个步骤：
1. 先找出谓语动词；
2. 再找出谓语动词后的宾语；
3. 把宾语用作被动语态中的主语；
4. 注意人称、时态和数的变化。
例：1. Bruce writes a letter every week. →A letter is written by Bruce every week.
2. Li Lei mended the broken bike this morning.→The broken bike was mended by Li Lei this morning.
3. He has written two novels so far.→Two novels have been written by him so far.
4. They will plant ten trees tomorrow.→Ten trees will be planted by them tomorrow.
5. Lucy is writing a letter now.→A letter is being written by Lucy now.
6. You must lock the door when you leave.→the door must be locked when you leave.
三、 使用被动语态应注意的几个问题：
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
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.
My father bought me a new bike. →A new bike was bought for me by my father.
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 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.
只要你掌握了以上一些方法，被动语态并不难学。
第2个回答 2007-04-07
1. 被动语态
(1). 被动语态表示句子的主语是谓语动词所表示的动作承受者。
(2). 被动语态基本结构：be+及物动词的过去分词
(如果是不用物动词，其过去分词应带有相应的介词)
(3). 被动语态中的be 是助动词，有人称、数和时态的变化。
一般现在时被动语态为：am/is/are+过去分词
一般过去时被动语态为：was/were+ 过去分词
与情态动词连用的被动语态：情态动词+ be + 过去分词
(4). 被动语态中动作的发出者或执行者做介词by的宾语，放在句
末，by 表示“由，被”的意思
如何理解被动语态？
为取胜更清晰、更深刻地理解被动语态的含义，可以将主动语态和被动语态的句子结构进行比较。
主动语态： 主语+ 谓语动词 + 宾语 + 其他成分
被动语态： 主语+ be +过去分词 + by +宾语 +其他成分
如： Many people speak English.
被动语态 English is spoken by many people.
2. 本单元要掌握的句型 见课本P69 中的Grammar Focus
3. invent v. 发明 inventor n. 发明家 invention n. 发明 可数名词
4. be used for doing用来做…(是被动语态) 如：
Pens are used for writing. 笔是用来写的。
Pens aren’t used for eating. 笔不是用来吃的。
5. 给某人某样东西
give sth. to sb. 如：I gave a pen to him. 我给他一支笔。
give sb. sth. I gave him a pen. 我给他一支笔。
6. all day 整天
7. salty adj. 咸的 salt n. 盐
8. by mistake 错误地 如：
I took the umbrella by mistake. 我不小心拿错了雨伞。
9. make sb./sth. +形容词 使…怎么样 It made me happy. 它使我高兴
make sb./sth. +名词 让…做… It made me laugh. 它让我发笑
10. by accident 意外 偶然 I met her by accident at bus stop.
我在公共汽车站意外地见到了她。
11. not…until… 直到…才做… 如：
I didn’t go to bed until I finished my work.
我直到完成我的工作才去睡觉。
12. according to +名词 根据… 如： according to an legend
according to this article根据这篇文章 根据一个神话
13. over an open fire 野饮
14. leaf n. 叶子 复数形式 leaves
15. nearby adj. 附近的 如： the nearby river
16. fall into 落入 掉进 如：The leaf fell into the river. 叶子落入了河里。fall down 摔倒 如：She fell down from her bike.
她从她自行车摔倒了。
17. quite 非常 adv. 与冠词a连用时，冠词a必须放在它的后面
如： quite a beautiful girl 一个漂亮的女孩
very 非常 adv. 与冠词a连用时，冠词a必须放在它的前面
如： a very beautiful girl 一个漂亮女孩
注：当不与冠词a 连用时，两者可以互用 如：
I am very happy.=== I am quite happy. 我非常高兴。
18. in the way 这样
19. pleased adj. 表示外部因素引起人发自内心的欣慰和愉快
pleasant adj. 愉快 高兴 指天气、时间、旅行令人高兴愉快
please v. 使高兴 使同意
20. battery—operated adj. 电池控制的
是名词+动词的运动分词构成的合成形容词
21. in the sixth century 在第6世纪
22. travel around 周游
23. more than === over 超过 如：
more than 300 == over 300 超过300
24. including prep. 介词 包括 可以与名词和动名词连用
如: Six people, including a baby, were hurt.
6个人包括一个小孩受伤了。
25. have been played 被上演 是现在完成时的被动语态
现在完成时的被动语态的结构：have /has been +过去分词
26. be born 出生 He was born in Canada. 他在加拿大出生
27. safety n. 安全 safe adj. 安全的
28. knock into 撞上(某人)
29. divide sth. into … 将…划分成..
通常指将一个整体分成几个对应相对的部分 如：
Let’s divide ourselves into 4groups. 让我们把我们自己划成4组。
30. since then 自从那以后 常与完成时 态连用 如：
Since then, I have left Beijing. 自从那以后，我已经离开了北京。
中考英语被动语态完全手册
一、语态概述
英语的语态是通过动词形式的变化表现出来的。英语中有两种语态：主动语态和被动语态。
主动语态表示主语是动作的执行者。巧记为：主动、主动、主去动。
例如：Many people speak English.
谓语：speak的动作是由主语many people来执行的。
被动语态表示主语是动作的承受者，即行为动作的对象。巧记为：被动、被动、主被动。例如：English is spoken by many people.主语English是动词speak的承受者。
主动态和被动态指的是动词形式，是词法概念；而主动句和被动句则指的是句子结构，从而是句法概念。所谓主动句就是由主动态动词(词组)作谓语动词的句子，而被动句则是由被动态动词(词组)作谓语动词的句子。
例如：He opened the door.他开了门。(主动句)
The door was opened.门被开了。(被动句)
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。现以teach为例说明被动语态在各种时态中的构成。
一般现在时：am／is／are＋taught
一般过去时：was／were＋taught
一般将来时：will／shall be＋taught
现在进行时：am／is／are being＋taught
过去进行时：have／has been＋taught
现在完成时：have／has been＋taught
歌诀是：被动语态be字变，过去分词跟后面。
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。
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。
Eight hours per day for sleep must be guaranteed.每天8小时睡眠必须得到保证。
歌诀：谁做的动作不知道，说出谁做的没有必要；
动作承受者需强调，被动语态运用到。
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。
(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)。
(3)把主动语态中的主语放在介词by之后作宾语，将主格改为宾格。例如：
All the people laughed at him.
He was laughed at by all people.
They make the bikes in the factory.
The bikes are made�by them in the factory.
歌诀是：宾变主，主变宾，by短语后面跟。
谓语动词变被动，be后“过分”来使用。
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，原来带to的情态动词变成被动语态后“to”仍要保留。
歌诀是：情态动词变动，情态加be加“过分”，原来带to要保留。例如：
We can repair this watch in two days.
This watch can be repaired in two days.
You ought to take it away.
It ought to be taken away.
They should do it at once.
It should be done at once.
第3个回答 2007-04-07
见你那麼著急，好吧！
先讲过去式，用was/were+past participle(过去分词)，如∶
I put an apple on the desk. 我把一个苹果放在桌上。
The apple was put by me. 苹果是我放的。
(put 三式不变，现在、过去、过分都一样)
通常只用过去式，除目前发生用现在式。