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it做形式主语的19个句型

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1.It is/was + 被强调部分 +

that/who ...

该句型是强调句型.被强调部分可所以主语,宾语,表语或状语.强调的主语假如是人,that 可以由 who 换用.假如把这种句型构造划失落后,应当是一个完全无缺的句子.这也是断定强调句型与其它从句的办法.

2. It is not until + 被强调部分 + that ...

该句型也是强调句型.重要用于强凋时光状语,译成汉语“直到……才……”,可以说是

not ... until ... 的强调情势.

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 是情势主语,真正的主语是 that 引诱的主语从句,常译为“清晰（显然,真的,确定……）”是主语从句最罕有的一种构造.

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 ...+(should) do 该句型和上一个同属一个句型.因为主句中的形容词不合,that

后的从句中要用虚拟语气（should + 动词本相）,should 可以省去.

5. It is said (reported,

learned…) that …

该句型中的it 仍是情势主语,真正主语是 that 引诱的主语从句.该构造常译为“ 据说（据报导,据悉……）”.

6. It is suggested

( ordered, required ... )

that ... +(should) do

该句型和上一个同属一个句型.主句中的曩昔分词是暗示要求,建议,敕令等词时,that 后的从句要用虚拟语气（should + 动词本相）,should 可以省.常译为“ 据建议;有敕令……）”.

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 + 动词本相）,should 可省去．暗示出乎料想,常译为“竟然”.没有这种意义时,则不必虚拟语气.

It is a pity that such a

thing ( should ) happen in

your class.这种事竟然产生在你们班上,真是圆满！ It

is a pity that he is ill.

他生病了,真圆满！

8. It is time ( about

time , high time ) that ...

该句型中that 后的从句应当用虚拟语气,值得留意的是①

经常应用曩昔时态暗示虚拟．② 有时也用should + 动词本相,should 不克不及省.常译为“是（恰是）……的时侯……”.

9. It is the first

( second … ) time that … 该句型要和上一个句型差别开来.该句型中的 that 从句不必虚拟语气,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议.假如是一般如今时,后面从句用如今完成时态;假如是一般曩昔时,后面从句则用曩昔完成时态.该构造中

that 可以省去;it 有时用

this 调换,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 ...

该句型重要用作处理刹时动词的完成时,又要和暗示一段时光的时光状语连用的问题.主句中是时光作表语,当时态是如今时或完成时,since 引诱的从句平日是一般曩昔时态,并且是刹时动词.假如主句是一般曩昔时,从句则用曩昔完成时.

11. It is ... when ...

该句型中的 when 引诱的是一个时光状语从句,主句中的

it 指时光,表语由具体的时光充当.常译为“当……的时刻,是……”.

12. It be ... before ...

该句型主句中的 it 指时光, 主句中的时态常是未来一般时或曩昔时两种时态．主句中的表语多是long, not

long , 3 days , 2 weeks 等暗示时光段的词或短语.常译为“……之后……”.

13. It happens (seems,

looks, appears ) that...

该句型中it是情势主语,that

引诱的是主语从句,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. 恰巧…… 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是情势主语,句型中的直接宾语是时光.常译为“做……要消费或人……”.

15. It is no good (use )

doing sth.

该句型中的真正主语是动名词短语,主句中的表语可所以no good , ( not any good ) ,

no use , ( not any use ).

16. It doesn't matter

whether ( if ) ...

该句型中whether (if) 引诱的从句是真正主语,该句型常译为“不管（是否）…… 没紧要…….

17. It is kind ( of sb. )

to do sth.

该句型中的不定式短语是真正主语,假如不定式的逻辑主语是由 of 引起,主句中的形容词必须是能暗示逻辑主语特点的形容词.罕有的有: bad,

brave, careless, clever,

cruel, foolish, good (恶意的), honest, horrible, kind,

lazy, modest, naughty, nice

(有教化的), 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.假如不定式的逻辑主语是由for 引起,主句中的形容词平日是暗示重要性,紧急性,频仍程度,难易,安然等情形的形容词.罕有的形容词有：

① important, necessary,

natural

② easy, 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 引诱一个状语从句.常译为,“看起来仿佛…… ＂假如与事实不相相符,则用虚拟语气．

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it做形式主语的19个句型

it做形式主语的19个句型

1.It is/was + 被强调部分

+ that/who ...之杨若古兰创作

该句型是强调句型.被强调部分可所以主语，宾语，表语或状语.强调的主语如果是人，that 可以由 who 换用.如果把这类句型结构划掉后，应当是一个完好无缺的句子.这也是判断强调句型与其它从句的方法.

2. It is not until + 被强调部分

+ that ...

该句型也是强调句型.次要用于强凋时间状语，译成汉语“直到……才……”，可以说是 not ... until ... 的强调方式.

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 是方式主语，真实的主语是 that 引诱的主语从句，常译为“清楚（明显，真的，肯定……）”是主语从句最罕见的一种结构.

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 ...+(should) do

It做形式主语句型整理大全

It做形式主语句型整理大全

精美文档 1 It作形式主语常见句型

动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有：

1. It + be + 形容词+主语从句，如：

It is uncertain whether he can come to Jenny’s birthday party or not.

2. It + be + 名词词组 + 主语从句，这类名词有：a fact, a pity, a shame, an honour，a

question等，如：

It’s a pity that you missed the exciting football match.

It remains a question whether he will come or not.

3. It + be + 过去分词 + 主语从句，这类过去分词有：announced, believed, expected,

hoped, decided, reported, said, shown等， 如：

It is reported that 16 people were killed in the earthquake.

It is not decided who will give the operation to the patient.

4. It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear,

happen, seem等， 如：

It seemed that he didn’t tell the truth.

It happened that I was out when he called.

5. It + be + 形容词 + for sb.）+ 动词不定式

这类句型常用形容词easy, difficult, hard, important, possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如：

it作形式主、宾语的用法解析

it作形式主、宾语的用法解析

it作形式主、宾语的用法解析

it作形式主、宾语的用法解析

IT这个词中英语中最渐渐不过了，当it作为形式主语和形式宾语出现时，你会用法吗?以下是店铺整理的it作形式主语和形式宾语的用法解析，希望对你有所帮助。

It 用作形式主语当不定式(短语)、动名词(短语)或从句在某个句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it作形式主语置于句首，而将真正的主语放在句尾。此时it只起先行引导作用 ...

一、 It 用作形式主语

当不定式(短语)、动名词(短语)或从句在某个句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it作形式主语置于句首，而将真正的主语放在句尾。此时it只起先行引导作用，本身无词义。

e.g. It is wrong to tell a lie.

(说谎是错误的。) 〔It为to tell a lie的形式主语〕

It is no use arguing about it.

(争吵是没用的。) 〔It为arguing about it的形式主语〕

It is uncertain who will come.

(谁要来还不确定。) 〔It为who will come的形式主语〕

It 作形式主语的.常见句型：

① It + be + 形容词 + to do sth. / doing / that ….

e.g. It is very important to learn a foreign language.

(学一门外语非常重要。)

It is useless crying over the spilt milk.

(覆水难收。)

It was really surprising that she married a man like that.

(她嫁给那样的男士真让人惊讶。)

② It + be +名词词组 + doing / that …. e.g. It is no good telling lies.

it做主语的句型

it做主语的句型

IT 作为主语的句子类型主要包括以下几种：

1. 一般陈述句：

例如：IT is a beautiful day.

（今天是个美好的一天。）

2. 疑问句：

例如：What about IT?

（怎么样？）

3. 否定句：

例如：IT isn't working.

（它没在运作。）

4. 祈使句：

例如：IT needs fixing.

（它需要修理。）

5. 感叹句：

例如：How amazing IT is!

（多么惊人啊！）

6. 一般疑问句：

例如：Does IT work?

（它运作吗？）

7. 特殊疑问句：

例如：Which IT do you mean?

（你指的是哪个？）

8. 选择疑问句：

例如：Do you want IT or that one? （你要哪一个，这个还是那个？）

9. 被动句：

例如：IT is being repaired.

（它正在被修理。）

10. 宾语从句：

例如：I think IT is a good idea.

（我认为这是个好主意。）

11. 状语从句：

例如：However IT happens, we should be prepared.

（无论怎样，我们都应该做好准备。）

12. 名词性从句：

例如：IT is obvious that he is talented.

（他很天赋。）

13. 条件句：

例如：If IT rains, we will stay indoors.

（如果下雨，我们就在室内活动。）

14. 虚拟语气：

例如：What would IT be like if IT were summer?

（如果现在是夏天，它会是什么样子？）

15. 比较级和最高级：

例如：IT is the best solution.

（这是最好的解决方案。）

16. 倍数表达：