内容正文:
►专题10 被动语态
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考点精
讲
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考点01 动词的被动语态
常用被动语态
构成
常用被动语态
构成
1
一般现在时
am/is/are asked
6
过去进行时
was/were being asked
2
一般过去时
was/were asked
7
现在完成时
have/has been asked
3
一般将来时
shall/will be asked
8
过去完成时
had been asked
4
过去将来时
should/would be asked
9
将来完成时
will/would have been asked
5
现在进行时
am/is/are being asked
10
含有情态动词
can/must/may be asked
考点02 被动语态的否定式
被动语态的否定式是在第一个助动词或情态动词后加not,短语动词的被动语态不可漏掉其中介副词。
固定结构be going to,used to,have to,had better变为被动语态时,只需将其后的动词变为被动语态。如:
Trees should not be planted.
The boy was made fun of by his classmates.
Newspapers used to be sent here by the little girl.
考点03 不出现主语,用被动结构表示
汉语中有一类不出现主语的句子,在英语中一般可用被动结构表示,如:
It is believed that...
It is generally considered that...
It is said that....
It is well known that...
It must be pointed out that...
It is supposed that...
It is reported that...
It must be admitted that...
It is hoped that...
考点04 主动形式表示被动意义
1.某些系动词可以用主动形式表示被动含义,如feel, look, seem, appear, taste, sound, smell, prove, remain等;主语通常是事物,且表示该事物本身具有某一特征。
【例】The dish tastes delicious.
2.某些动词在表示主语的内在品质或性能时,用主动形式表示被动含义,常见的有write, read, clean, sell, wash, cook, open, close, lock等。
【例】The clothes wash well.
3.在日常用语中,某些动词用于进行时态时,可用主动形式表示被动含义,如cook, bake, make, print, pack, build, work out等。
【例】The plan is working out.
4.在表示“需要”的need, want, require 及 be worth后的动词-ing形式中,用主动形式表示被动含义。
【例】The window wants/needs/requires repairing.
5.在下列情况中,动词不定式的主动形式表示被动含义。
(1)在“be+形容词+ to do”句型中。
【例】English words are difficult to remember.
(2)在作补语的形容词后作状语的不定式。
【例】We found the book easy to understand.
(3)在This /That /These /Those be后的名词后的不定式。
【例】This is a difficult problem to solve.
(4)在there be/have/with sth. to do ( 有……要……) 结构中。
【例】I have a lot of work to do.
(5)在“疑问代词+不定式”结构。
【例】The question is what to do next.
(6)在be to blame / seek / let结构中。
【例】The house is to let. 此房出租。
考点05 不可变为被动语态的几种情况
下面词或短语没有被动语态:
leave,enter,reach,become,benefit,cost,equal,contain,last,lack,fit,fail,have,appear,happen,occur,belong to,
take place,break out,come,about,agree with,keep up with,consist of,have on,lose heart等。
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