内容正文:
Unit5人教版九年级五单元英语语法专讲专练(二)
被动语态
在初中英语的教学活动中,被动语态是一个关键语法点,因为我们的母语----汉语语法里没有被动的特别规定,而英语却把它作为一种特殊形式表现出来,所以在教学中要切实把握住两种语言的不同表达方式。
一,概念:英语中的被动语态是指句子的主语是谓语动词的动作承受者。而主动语态句子的主语则是谓语动词的动作执行者。
Eg: We are reading English now. 我们现在正在读英语(主动)
The floor was swept . 地板被打扫过了。 (被动)
He wrote a novel 他写了一个小说 (主动)
The novel was written by him . 这个小说是他写的 (被动)
The window was broken by these boys . 窗户是被这些男孩子打破的。 (被动)
2, 结构;被动语态依据时态不同有着不同的结构。
时态
主动语态
被动语态
一般现在时
S+V(实义动词)
S+am/is/are+done
一般过去时
S+Ved
S+was/were+done
一般将来时
S+will/shall+be
S+will/shall+be+done
现在进行时
S+be+doing
S+am/is/are+being+done
过去进行时
S+was/were+doing
S+was/were+being+done
现在完成时
S+has/have+done
S+has/have+been+done
过去完成时
S+had+done
S+had+been+done
过去将来时
S+would/should+V
S+would/should+be+done
情态动词
S+can/must/may...+V
S+can/may...+be+done
说明:英语被动语态中的be动词是助动词,根据不同的时态be动词的形式也需要发生相应的变化,且be动词的变化在一般现在时、一般过去时、现在进行时、过去进行时及现在完成时句式中必须根据主语人称而变化。
The policemen thought that the man was killed by someone. (主动)
The man is thought to have been killed by someone (被动)
It is believed that the man was killed by someone (被动)
如果需要变为被动结构时,在助动词后面加not
3, 被动语态的用法
1, 当语境需要强调动作承受者时,要用被动语态。
The photo was taken by him . 这幅照片是他照的。(强调照片是承受者)
2, 当不知道动作执行者或者强调既成事实时,需要使用被动语态
The building has been built. 这幢大楼已经建好了。(不知道建设者是谁)
3, 当要表达“据说,据认为,据报道”等时需要使用被动语态
It is said that he has been to Landon. 据说他去伦敦了。
4, 主动语态变为被动语态
1, 主动语态变为被动语态时,将主动语态宾语变为被动语态主语。如果该宾语是人称代词宾格,则需要改为人称代词主格。
2, 主动语态变为被动语态时,要把动词变为相对应形式的被动语态结构。
3, 如果在被动语态中强调主动语态的句子主语,则应加by+主动主语(如果是人称代词,则需要变为宾格)
Eg: We were playing the football in our football field this time yesterday .(主动)
-------The football was being played in our football field this time yesterday by us.(被动)
They will display different kinds of robots in the coming robots show in our city .(主动)
----Kinds of robots will be displayed in the coming robots show in our city .(被动)
注意:有些动词短语在句中属于固定搭配,不可拆分。这些短语动词有:look at ,look for ,look out of ,get out of , get on with ,get along with ,catch up with ,keep up with ,make use of ,take care of ,take part in等等,这些动词短语中的介词/副词不可拆分,不可省略。
Eg: we are going to take part in a meeting this afternoon.
-------A meeting is going to be taken part in this afternoon .
另外,感官动词和使役动词,在主动句中其后所跟的动词不定式符号to是要省略的,但是在被动语态句子里,to必须还原。
感官动词:see ,hear ,watch ,notice ,feel ,listen to .
使役动词:make ,have ,let ,help .
Eg: We saw him enter the lab last night .
-----He was seen to enter the lab
He made the girl stop to listen to music .
--------The girl was made to stop to listen to music .
5, 主动结构表被动意义的特殊句
1, 某些有具体意义的系动词由于没有宾语,也就不具备被动形式,所以只能以主动形式表被动。这些系动词有:look,sound , smell, taste , feel ,prove 等
Eg: The sing sounds beautiful. 这首歌听起来很美。
The silk feels soft . 丝绸摸起来很柔软
但是这些动词做实义动词时,则不能以主动形式表被动
Pepper was tasted in the soup . 汤里面被尝出了胡椒的味道。
2,一些动词read, wash, clean, cook, lock, shut, open, act, write,cut,wear、want、need、等,用作不及物动词时且表示主语的某种属性时,用主动表被动。 例eg: The door won’t open.这门打不开。
It can’t move.它不能动。
注意:该用法的不及物动词通常与can’t(不能), won’t (不会)等连用,注意它与用被动语态含义不同:
Eg:The window won’t shut. 这窗户关不上。(说明主语的属性——窗户有问题了)
The window won’t be shut. 这窗户将不用关上。(窗户本身没问题,只是不用关)
3,不定式作定语,放在被修饰词后面,与前面被修饰的名词或代词有动宾关系,又在句子中与另一名词或代词有主谓关系,不定式要用主动表被动含义。
I have some things to do. 我有许多要做的事情。
(不定式与work是动宾关系,与I是主谓关系)
Tom is looking for a room to live in. Tom在找一间住的房间。
(不定式与room是动宾关系,与Tom 是主谓关系)
He has a family to support. 他要维持一个家庭。
(不定式与family是动宾关系,与he是主谓关系)
注意:上述动宾关系或主谓关系均指逻辑动宾或逻辑主谓关系。
4, 在be to blame,be to let(租)和be to seek(找)结构中的一些不定式:这种结构中的不定式通常应用主动表被动。
下列动词用不定式的主动形式表示被动意义:
Who is to blame for starting the fire? 这场火灾应由谁负责?
You are to blame for the accident. 你应为这事受动责备。
A better way is to seek. 还得找一种更好的办法。
The house is to let. 此房出租。
A lot remains to do. 还剩下许多事情要做。
5, 在be worth(值得)结构中,worth后用动词的-ing结构表示被动。
eg:The book is worth reading. 这本书值得一读。
6,不定式用于修饰“there be+名词”中的名词时,可用主动式,也可用被动式,有时含义差不多:
There is too much work to do [to be done]. 要做的工作太多了。
但有时含义有差别(不定式用主动式可视为其前省略了for sb,用被动式可视为其后省略了by sb):
There is nothing to do. 无事可做 (含有无聊之意)
There is nothing to be done. 不能做什么了。 (指没有办法了)
There is nothing to see. 没什么可看的。 (即不值一看)
There is nothing to be seen. 没看见什么。 (指没东西看)
但在“there be”句型中作主语的定语如果现在分词时,所用的现在分词要用主动表被动意义。
There is nothing doing these days. 这些天没事干。
I see there’s a good idea planning. 我知道又在打好主意。
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