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主语从句

主语从句(Subject Clause)

定义:主语从句,即句子在复合句中充当主语

What I feared has come upon me; what I dreaded has happened to me.

我所惧怕的迎面而来;我所恐惧的临到我身。

It goes without saying that you are keeping something from me.

不言而喻,你有事瞒着我。

(1)That he finished writing the composition in such a short time surprised us all.

                  主(从)                                             谓    宾 同 

思考题:水蒸气上升,温度下降,变成水,就下落。这就是雨形成的原理。

That steam rises and becomes water when the temperature goes down is the law of forming rain.

It is the law of forming rain that steam rises and becomes water when the temperature goes down.

 

(2)Whether we will go for an outing tomorrow remains unknown.

              主从                              系        表  

思考题:一个男人和一个女人能不能结婚取决于周围所有的人是否赞同。因为爱是两个人的事。

Whether a man and a woman can get married or not depends on how all the people around them think, for love is only a matter of both two.

(3)Who will be our monitor hasn't been decided yet.   

(4) Whom we must study for is a question of great importance.  

(5)What caused the accident remains unknown.   

(6)Whatever you did is right.   

(7)Who the watch belongs to was lost is unknown.   

(8)What we need is time.   

(9)What we need are good doctors.   

为了防止句子头重脚轻,通常把形式主语it放在主语位置,真正主语搁置于句末   

(1)It is certain that he will win the match.   

(2)It is true that he has made a very important discovery in chemistry.   

(3)It is very likely that they will hold a meeting.   

(4)It is strange that he should do that.   

(5)It is important that we all should attend the meeting.   

(6)It is strange that the man should have stuck to his silly ideas.   

 注解:She should have been my wife.(与事实不符)

       She may have come.(对过去的推断)

(7)It is a pity that we won't be able to go to the south to spend our summer vacation.   

(8)It is still a mystery what caused the accident.   

(9)It is said that he has gone to shanghai.

(10)It is known to all that the gun powder was first invented by the Chinese.   

(11)It is suggested that the work should be done with great care.   

(12)It seems that he has seen the film. 

(13)It happened that the two cheats were there.  

 

It 作形式主语和it引导强调句的比较   

①主语从句常用it作形式主语,一般常用句型为:It is+{名词/形容词/过去分词}+主语从句例如:   

It is still a question whether she will come or not.   

It is strange that you should like him.  

It is still unknown which team will win the match.   

It turned out that you have no right to deliver speech if you don’t look into something deeply.

It turned out that you will not have the right of delivering speech if there is no a deep investigation.

思考题:已经证明,学好英语语法,就是掌握词法和句法。 

It has been proved that studying grammar well means having a command of phraseology and syntax.

思考题:众所周知:一个人一生必然经历三十而立、四十不惑、五十知天命的过程。

It is well known that everyone has to experience three stages during which one is bound to have a steady career when he is 30, knows the world when he is 40 and is familiar with the universal rules when he is 50.

 

It is well-known that everyone is likely to experience a course in all his life ------ at the age of 30, he has a steady career; at 40, he knows the world and at 50, he is familiar with the universal rules.

It is well-known that everyone is likely to experience a course in all his life ------at the age of 30, he has a steady career; at 40, he knows the world and at 50, he is familiar with the universal rules.

而强调句则不同,它的结构是:It+be+被强调部分+that+从句   

强调主语:

It is the times that produces its heroes.

强调宾语:It is English that Prof. Lin teaches us.

It is Prof. Lin who teaches us English.

强调状语:It was in shanghai that I saw the film.

Linda bought some perfume and shampoo in the market.

用it 作形式主语的结构   

(1) It is +名词+that从句   

It is a fact that … 事实是…

思考题:

事实是:钱不是问题,问题是没有钱。

It is a fact that money isn’t a problem, but the problem is that we have no money.(表语从句) 

It is a fact that money isn’t a problem, but having no money is a problem.  

it is +形容词+that从句   

思考题 显然,人为财死,鸟为食亡。

It’s obvious that people would die of wealth and birds would die of food.  

it +不及物动词+that从句   

It seems that… 似乎…   

It happened that… 碰巧…   

it is+过去分词+that从句  

 It is reported that… 据报道…   

It has been proved that… 已证实…   

据说,汉字是在6000年前发明的。

It is said that Chinese characters were invented 6000 years ago.



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发布时间:2011-11-10 | 访问量:2609次 | 标签:yyw
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