被动语态的结构
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详解
主动语态变被动语态时,主动语态句中的宾语变成被动语态句中的主语,主动语态句中的主语成为被动语态句中的动作的执行者。
构成
(1)助动词be+及物动词的过去分词
(2)情态动词+be+及物动词的过去分词
被动语态常用于陈述事实,一般用在科技文章或新闻报道中。
口诀
一般现在时、一般过去时用be +及物动词的.过去分词,be有人称、时、数变。
完成时态have(has)done,被动将been加中间。
一般将来shall(will)do,被动变do为be done。
将来进行无被动,shall(will)be doing。
现在完成时,被动 have(has)been done。
现、过进行be doing,被动be加being done。
情、助、有、是妥安排,一律随新主语变。
否定助后加not,疑问一助置主前。
主语恰是疑问词,直陈语序主在前。
一般情助加be done,双宾多将间宾变。
复合宾语宾变主,宾补、主补相应变。
主动语态变为被动语态例句:
一般现在时:
主:We believe him.
被:He is believed by us.
一般过去时:
主:He bought his children some pens.
被:Some pens were bought for his children by him.
一般将来时:
主:Everyone will know the truth soon .
被:The truth will be known by everyone.
现在进行时:
主:Mary is making a doll.
被:A doll is being made by Mary.
过去进行时:
主:They were carrying the hurt player.
被:The hurt player was being carried by them .
现在完成时:
主:He has received the letter.
被:The letter has been received by him.
过去完成时:
主:They had built ten bridges.
被:Ten bridges had been built by them
“havedone”,被动将“been”加中间(过去完成时“had done”也包括在内)。
1、主动:We have studied English for 3 years at the spare-time school.
被动:English has been studied by us for 3 years at the spare-time school.(“have”随新主语变为“has”)
我们已经在学校里学了三年英语了。
2、主动:They had produced 100 tractors by the end of last year.
被动:100 tractors had been produced by the end of last year.
到去年年底他们已生产出一百台拖拉机。
3、主动:They have set up a power station in their home town.
被动:A power station has been set up in their home town.
他们的家乡建立了一座发电站。
4、主动:They have warned us to be careful of rats.
被动:We have been warned to be careful of rats by them.
他们已提醒我们要注意老鼠。
5、主动:People have piled plastic bags full of rubbish in streets.
被动: Plastic bags full of rubbish have been piled in streets.
人们把装满垃圾的塑料袋子堆放在街上。
一般用法
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 by my mother.
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
The 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.
特殊用法
1.不及物动词无被动语态。 如:happen, break down, come out......
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。 如: write, sell, ride.....
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 at him. →He can’t be laughed at 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 sickpeople. →The sickpeople is being taken care of by the nurse.