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各种结构的被动形式-思马得英语100个句子搞定英语语法(33)

Cherie207 于2013-05-07发布 l 已有人浏览
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100个句子就可以完全帮你疏通英语语法,本书的宗旨是将看似繁杂的、模糊的语法现象通过句子将之简单化、清晰化……第33课详细介绍了各种结构的被动形式

33.各种结构的被动形式

<例句>
How could he be  persuaded to stay?
怎么能劝说他留下?

<语句分析>
由can, could和be可构成被动结构,can, could 后的不定式可用完成形式,may,might或should等词后的不定式也可用完成形式。有一些不定式结构如ought to, be going to等也可构成被动形式。有些成语动词如及物动词+副词,动词+介词,动词+副词(名词)+介词等都可以有被动结构形式。

<触类旁通>
(1) This can't have been done by a human being.
这不可能是人做的事情。
语法分析:can, could后的不定式可用完成形式。

(2) The road may be further widened.
这条路还可再拓宽一点。
语法分析:may, might可构成被动结构。

(3) They might have been put in the wrong place.
它们可能被放错了地方。
语法分析:may, might后的不定式也可用完成形式。

(4) This ought to be done right away.
这事情应当马上去做。
语法分析:ought to 的被动结构。

(5) When is the dam going to be completed?
水坝什么时候建成?
语法分析:be going to 构成的被动结构。

(6) Her illness was brought on by her worries.
她忧虑成疾。
语法分析:成语动词的被动结构。

(7) We were assigned a lot of homework.
我们有很多家庭作业。
语法分析:双宾动词的被动结构。

<巩固练习>
(1) This can't _____ done in a short time.
(2) She might _____ sent to work abroad.
(3) All these factors mustn't _____ neglected.
(4) This should _____ kept a secret.
(5) Does this need _____[be] mentioned?
(6) How many people are going to _____[send] there?
(7) This has to _____[do] promptly.
(8) Not a soul was _____[see].
(9) You are requested _____[present] at the ceremony.

<参考答案>
(1) be  (2) be  (3) be  (4) be  (5) to be  (6) be sent  (7) be done  (8) to be seen  (9) to be present

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