人教版高中英语被动语态知识点讲解及例题
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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
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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……
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It is reported that…据报道……
It is b elieved 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)