内容正文:
Section 3 Grammar—复习被动语态
一、动词的被动语态构成一览表(以ask为例)
常用被动语态
构成
常用被动语态
构成
一般现在时
am/is/are asked
现在完成时
have/has been asked
一般过去时
was/were asked
过去完成时
had been asked
一般将来时
will/shall be asked
过去将来时
would/should be asked
现在进行时
am/is/are being asked
过去将来完成时
would have been asked
过去进行时
was/were being asked
含有情态动词
can/must/may ... be asked
1.被动语态的用法。
(1)当我们不知道谁是动作的执行者,或者没有必要指出谁是动作的执行者时。
Every classroom in this school is being equipped with a new TV set.
在这所学校里,每间教室都正在装备一台新的电视机。
(2)为了强调动作的承受者时。
Visitors are requested not to touch the exhibits.
参观者被要求不可触摸展品。
(3)出于策略、委婉、礼貌等不指出动作的执行者时。
You are said to be active recently.
据说你最近很活跃。
2.含有情态动词的被动语态。
含有情态动词的被动语态由“情态动词+be+过去分词”构成。
You might be asked to speak at the meeting.
可能请你在会上发言。
3.短语动词的被动语态。
“动词+介词或副词”构成的短语动词,以及“动词+名词+介词”构成的短语动词,在被动语态中不要漏掉后面的介词或副词。
A man who is much talked about is always very attractive.
被谈论多的人经常很有吸引力。
4.关于“get+过去分词”。
在英语口语中,有时可用“get+过去分词”构成被动语态。
I tried to find my way round London without a map and got lost.
我试图不带地图在伦敦寻路,结果迷路了。
注:“get+过去分词”这种结构比较常见的搭配有get arrested/caught/confused/delayed/divorced/dressed/drowned/drunk/
elected/engaged/hit/killed/lost/married/stuck等。
5.主动形式表示被动意义。
(1)有些系动词,如taste,sound,prove,feel,look,smell,remain,appear等本身含有被动意义。
They often eat in that restaurant because the food there tastes delicious.
他们常到那家餐馆吃饭,因为那里的饭菜可口。
(2)表示主语的某种属性特征的动词,如read,write,sell,open,shut,begin,wash,wear,cut,lock,play,drive等。这类动词后面常接一个修饰语。
Books of this kind sell well.
这类书很畅销。
注意事项:①被动语态的否定式是在第一个助动词或情态动词后面加not。
②据说类动词用在It is said/believed/supposed/reported that ..., It is generally considered that ..., It is well known that ... 等,及It must be admitted/pointed out that ... 等结构中常以被动形式出现。
③不及物动词或动词短语无被动语态(即多数的瞬间动词):appear, die, disappear, end, fail, happen, last, lie, remain, sit, spread, stand, break out, come true, fall asleep, keep silent, lose heart, take place等。
④不能用于被动语态的及物动词或动词短语:fit, have, hold, marry, own, wish, cost, notice, watch, agree with, arrive at/in, shake hands with, succeed