被动语态句型构成包括被动语态的各种时态构成,最好有例子.

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被动语态句型构成包括被动语态的各种时态构成,最好有例子.被动语态句型构成包括被动语态的各种时态构成,最好有例子.被动语态句型构成包括被动语态的各种时态构成,最好有例子.一、被动语态的用法:1.一般现在

被动语态句型构成包括被动语态的各种时态构成,最好有例子.
被动语态句型构成
包括被动语态的各种时态构成,最好有例子.

被动语态句型构成包括被动语态的各种时态构成,最好有例子.
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

一般现在时:
be+过去分词:如:I am always threatened by him.
我总是被他所威胁。
一般过去时:
be+过去分词:如:I was hitted by him yesterday.
昨天我被他打了一顿。
一般将来时:
will/be going to...

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一般现在时:
be+过去分词:如:I am always threatened by him.
我总是被他所威胁。
一般过去时:
be+过去分词:如:I was hitted by him yesterday.
昨天我被他打了一顿。
一般将来时:
will/be going to be+过去分词:如:You will/are going to be hitted by me .明天你将挨我揍。
现在进行时:
be+being+过去分词:如:The bridge is being built.
那座桥在建成中。
现在完成时:
have/has been+过去分词:如:Mary has been taken to school by her mother.玛丽已被她妈妈带到学校去了。
They have been warned.他们受过警告了。

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一般现在时:be done(be随人称变化)
一般过去时:was/were done
一般将来时:will be done
现在进行时:be being done(前面的be随人称变化,后面的being固定)
过去进行时:was/were being done(being固定)
将来进行时:will be being done(being固定) <...

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一般现在时:be done(be随人称变化)
一般过去时:was/were done
一般将来时:will be done
现在进行时:be being done(前面的be随人称变化,后面的being固定)
过去进行时:was/were being done(being固定)
将来进行时:will be being done(being固定)
现在完成时:have/has been done
过去完成时:had been done
将来完成时:will have been done
将来完成进行时:will have been done
现在完成进行时:have been being done
过去将来时:would be done
过去将来完成时:would have been done
过去完成进行时:had been being done
过去将来进行时:would be being done
过去将来完成进行时:would have been being done
(例句自己套就可以了)

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http://baike.baidu.com/view/135.htm
各种时态都有,自己看吧。