英语被动语态总结
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英语被动语态总结
一、被动语态的构成形式
1. 被动语态的基本时态变化
被动语态通常为十种时态的被动形式, 被动语态由“be+过去分词”构成,be随时态的变化而变化。以do为例,各种时态的被动语态形式为:
1)am/is/are +done (过去分词) 一般现在时
Visitors are requested not to touch the exhibits.
2)has /have been done 现在完成时
All the preparations for the task have been completed, and we're
ready to start.
3)am/is /are being done 现在进行时
A new cinema is being built here.
4)was/were done 一般过去时
I was given ten minutes to decide whether I should reject the offer.
5)had been done 过去完成时
By the end of last year, another new gymnasium had been completed
in Beijing.
6)was/were being done 过去进行时
A meeting was being held when I was there.
7)shall/will be done 一般将来时
Hundreds of jobs will be lost if the factory closes.
8)should/would be done 过去将来时
The news would be sent to the soldier's mother as soon as it arrived.
9)shall/will have been done 将来完成时(少用)
The project will have been completed before July.
10)should/would have been done 过去将来完成时(少用)
He told me that his new clothes would have been made very soon. 2. 被动语态的特殊结构形式
1)带情态动词的被动结构。其形式为:情态动词+be+过去分词。
The baby should be taken good care of by the baby-sitter.
2)有些动词可以有两个宾语,在用于被动结构时,可以把主动结构
中的一个宾语变为主语,另一宾语仍然保留在谓语后面。通常变
为主语的是间接宾语。
His mother gave him a present for his birthday. 可改为He was
given a present by his mother for his birthday.
3)当“动词+宾语+宾语补足语”结构变为被动语态时,将宾语变为被
动结构中的主语,其余不动。
Someone caught the boy smoking a cigarette. 可改为The boy was
caught smoking a cigarette.
4)在使役动词have, make, get以及感官动词see, watch, notice, hear,
feel, observe等后面不定式作宾语补语时,在主动结构中不定式
to要省略,但变为被动结构时,要加to。
Someone saw a stranger walk into the building. 可改为A stranger
was seen to walk into the building.
5)有些相当于及物动词的动词词组,如“动词+介词”,“动词+副
词”等,也可以用于被动结构,但要把它们看作一个整体,不能
分开。其中的介词或副词也不能省略。
The meeting is to be put off till Friday.
3. 非谓语动词的被动语态
v.+ing 形式及不定式to do 也有被动语态(一般时态和完成时态) 。
I don't like being laughed at in the public.
二、如何使用被动语态
学习被动语态时,不仅要知道被动语态的各种语法结构,还要知道在哪些情况中使用被动语态。
1.讲话者不知道动作的执行者或不必说出动作的执行者(这时可省
by 短语)。
My bike was stolen last night.
2.借助被动的动作突出动作的执行者。
I was given ten minutes to decide whether I should accept the offer.
3.为了更好地安排句子。
The well-known person got on the bus and was immediately recognized by people. (一个主语就够了)
三、It is said that+从句及其他类似句型
一些表示“据说”或“相信”的动词如believe, consider, expect, report, say, suppose, think等可以用于句型“It+be+过去分词+that从句”或“主语+be+过去分词+to do sth.”。有:
It is said that… 据说……
It is reported that…据报道……
It is be lieved that…大家相信……
It is hoped that…大家希望……
It is well known that…众所周知……
It is thought that…大家认为……
It is suggested that…据建议……
It is said that the boy has passed the national exam. (=The boy is said to have passed the national exam. )
四、谓语动词的主动形式表示被动意义
1.英语中有很多动词如break,catch,clean,drive,lock,open,sell,
read,write,wash等,当它们被用作不及物动词来描述主语特征时,常用其主动形式表达被动意义,主语通常是物。
This kind of cloth washes well.
注意:主动语态表被动强调的是主语的特征,而被动语态则强调外界作用造成的影响。试比较:The door won't lock.(指门本身有毛病)
The door won't be locked.(指不会有人来锁门, 指“门没有锁”是人的原因)