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it句型大总结,赶紧收藏哦!

发布时间:2017-04-21 23:23:59编辑:365bet体育在线来源:www.356884.com浏览量:

本文章由春喜在线英语2017.4.21日编辑发布

 

 

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1、It is + 被强调部分 + that ...

该句型是强调句型。将被强调的部分放在前面,其它部分置于that之后。被强调部分可以是主语,宾语,表语或状语。强调的主语如果是人,that可以由who换用。如果把这种句型结构划掉后,应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。

It was about 600 years ago that the first clock with a face and an hour hand was made.

It was they that (who) cleaned the classroom yesterday.

It was in the street that I met her father.

 

2、It is not until + 被强调部分 + that ...

该句型也是强调句型。主要用于强凋时间状语,译成汉语“直到...才...”,可以说是 not ... until ...的强调形式。
 
It was not until she took off her dark glasses that I realized she was a famous film star.

= Not until she took off her dark glasses did I realize she was a famous film star.

= I didn’t realize she was a famous film star until she took off her dark glasses.

 

3、It is clear ( obvious, true, possible, certain ... ) that ...

该句型中it是形式主语,真正的主语是that引导的主语从句,常译为“清楚(显然,真的,肯定...)”是主语从句最常见的一种结构。   

It is very clear that he’s round and tall like a tree.

= That he’s round and tall like a tree is very clear.
 


4、
It is important ( necessary, right, strange, natural ... ) that ...

该句型和上一个同属一个句型。由于主句中的形容词不同,that后的从句中要用虚拟语气(should + 动词原形),should可以省去。建议记住该句型中的形容词。

It is important that we ( should ) learn English well.   
 
It is necessary that he ( should ) remember these words.

 

5、It is said ( reported, learned ... ) that ...

该句型中的it仍是形式主语,真正主语是that引导的主语从句。该结构常译为“据说(据报道,据悉...)”。   

It is said that he has come to Beijing.   
 
It is reported that another earth satellite has been put into orbit.

 

6、It is suggested ( ordered ... ) that ...

该句型和上一个同属一个句型。主句中的过去分词是表示请求、建议、命令等时,that后的从句要用虚拟语气(should + 动词原形),should可以省。常译为“据建议,有命令”。   

It is suggested that the meeting ( should ) be put off.  

It was ordered that we ( should ) arrive there in two hours.

 

7、It is a pity ( a shame ... ) that ...

该句型中,that后的从句一般用虚拟语气(should + 动词原形),should可省去。表示出乎意料,常译为“竟然”。没有这种意义时,则不用虚拟语气。

It is a pity that such a thing ( should ) happen in your class.
这种事竟然发生在你们班上,真是遗憾!

It is a pity that he is ill.
他生病了,真遗憾!

 

8、It is time ( about time, high time ) that ...

该句型中that后的从句应该用虚拟语气,值得注意的是
常用过去时态表示虚拟。
有时也用should+动词原形,should不能省。常译为“是(正是)...的时侯”。

It is time that children should go to bed.   

= It is time that children went to bed.

 

9、It is the first ( second ... ) time that ...

该句型要和上一个句型区别开来。该句型中的that从句不用虚拟语气,而用完成时态。至于用什么完成时态,由主句的谓语动词的时态决定。如果是一般现在时,后面从句用现在完成时态;如果是一般过去时,后面从句则用过去完成时态。该结构中 that可以省去;it有时用this替换。常译为“是第一(二)...次...”。

It is the first time I have been here.

= This is the first time I have been here.


 
10、
It is ... since ...

该句型主要用作处理瞬间动词的完成时,又要和表示一段时间的时间状语连用的问题。主句中是时间作表语,其时态是现在时或完成时,since引导的从句通常是一般过去时态,而且是瞬间动词。如果主句是一般过去时,从句则用过去完成时。   

It is ( has been ) 5 years since his father died.

 

11、It is ... when ...

该句型中的when引导的是一个时间状语从句,主句中的it指时间,表语由具体的时间充当。常译为“当...的时候,是...”。   

It was 5 o’clock when he came here.

 

12、It be ... before...

该句型主句中的it指时间,主句中的时态常是将来一般时或过去时两种时态。主句中的表语多是long, not long, 3 days, 2 weeks等表示时间段的词或短语。常译为“...之后...”。

It was 3 days before he went to Beijing.
 
It will be not long before he finishes his job.

 

13、It happens ( seems, looks, appears ) that ...

该句型中it是形式主语,that引导的是主语从句,主句中的happen , seem等词是不及物动词。

It happened ( so happened ) that he met his teacher in the street. (碰巧)

It seems that he will be back in a few days. (看来)

 

14、It takes sb. ... to do sth.

该句型中的不定式是真正的主语,it是形式主语,句型中的直接宾语是时间。常译为“做...要花费某人...”。   

It took thousands of people many years to build the Great Wall.


 
15、
It is no good ( use ) doing sth.

该句型中的真正主语是动名词短语,主句中的表语可以是no good, not any good, no use, not any use。

It is no good learning English without speaking English.


 
16、
It doesn’t matter whether ( if ) ...

该句型中whether ( if ) 引导的从句是真正主语,该句型常译为“不论(是否)...没关系...。

It doesn’t matter if they are old.


 
17、
It is kind ( of sb. ) to do sth.

该句型中的不定式短语是真正主语,如果不定式的逻辑主语是由of引起,主句中的形容词必须是能表示逻辑主语特征的形容词。常见的有: bad, brave, careless, clever, cruel, foolish, good(好心的), honest, horrible, kind, lazy, modest , naughty, nice(有教养的), polite, rude, silly, stupid, wise, wrong(错误的)等。 这个句型可以改写为:sb. is kind to do sth.  

It is kind of you to say so.
 
= You are kind to say so.


 
18、
It is necessary ( for sb. ) to do sth.

该句型与上一个同属一个句型。如果不定式的逻辑主语是由for引起,主句中的形容词通常是表示重要性、紧迫性、频繁程度、难易、安全等情况的形容词。常见的形容词有:
①important, necessary, natural
②easy, safe, common, normal, hard, difficult, dangerous, unusual, rare, impossible, pleasant等。

在①中的形容词作表语可以用从句改写, 如:

It is important for her to come to the party.

= It is important that she ( should ) come to the party.

 

19、It looks ( seems ) as if ...

该句型中it无意义。as if引导一个状语从句。常译为,“看起来好像...”。如果与事实不相符合,则用虚拟语气。

It looks as if he is ill.(真的病了)

It looks as if he were ill.(没有生病)

It seemed as if he were dying.

 

20、We think it important to learn a foreign language.

该句型中的it作形式宾语。为了记忆方便大家可称该句型为“6123结构”。
“6”指主句中常用的动词:think, believe, make, find, consider, feel;
“1”指的是形式宾语it;
“2”指的是宾补的两种形式:形容词或名词;
“3”指的是真正宾语的三种形式:不定式短语,动名词短语或that引导的宾语从句。

We think it our duty to clean our classroom every day.

He felt it important learning English well.

They found it difficult that they would finish their work in two days.

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