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It的用法总结

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It 的用法总结

一. 代词: 1) 指代上文

2) 指代this/that

3) 指代未知性别的婴儿或孩子或身份不明的人

4）指代时间/地点/天气/温度/距离/环境

What does “it” refer to?

1.It gets dark very early in the winter.

2.What will you call it if it’s a boy?

3.I love spring---It’s a wonderful time of the year.

4.It’s less than 100 kilometres from here to Jinan.

5.When the factory closes, it will mean 500 people losing their jobs.

6.What’s this? It’s a cat.

7.It has snowed much this year.

注意：it,?one和that, those作替代词的区别?

(1)The book in your bag is very interesting. Can I borrow ?

(2) The book in your bag is more interesting than ______ on the desk.

(3) The weather here is much colder than____ in Nanjing.

(4) The books are free. You can take____ free of charge.

(5) The books in the bag are better than _____ on the desk.

it 表示特指，与前面指代的名词是同一个

one 表示泛指，指代单数可数名词，与指代的名词同类但不同一个

that表示特指，相当于the+名词单数，与指代的名词同类但不同一个 those表示特指,相当于the+复数可数名词, 与指代的名词同类但不同一个

it指时间的几个重要句式

【句式1】it is /has been + 段时间 + since ----自从----多久了

• It is / has been 3 years since I visited your company.

【句式2】It was + 段时间 + before ---过了多久-----才---

• It was 3 hours before he realized the truth.

【句式3】It will be +段时间 + before --要过多久----才--

• It will be 3 months before they complete the bridge.

【句式4】it was + 点时间 + when ---某事发生于---某一时刻—

It was 10 o’clock when the big fire broke out .

【句式5】It /this is/was the +序数词+ time + 现在完成时态/过去完成时-

（表示某人第几次做某事）

• It is the second time I have heard of this .

【句式6】It is time (about time /high time ) that sb. did /should do

（该是干……的时候了）

It is time that we went to school.

对比训练

1. It will be years ____ we meet again.

2. It is ten years ____ I came to this town.

3. It is ten years ago ____ I came to this town.

4. It is the third time ___ I _________ (visit) to this town. 5. It was 2 am. ___Tangshan earthquake took place.

A. when B. that C. before D. since

二. 引导词: 1)形式主语 2)形式宾语 3)强调句

It 作形式主语

基本结构：

It + be/v. +……+ (for sb/ of sb.) to do sth (动词不定式)

doing sth.（动名词短语）

that/ whether …（从句）

注意1：: For or Of ?

1. It is important ____ us to learn English well.

2. It is very kind ____ you to help me learn English.

3. It is foolish ____ you to believe him.

4. It is necessary ____ you to go over this lesson.

注意2; It 何时代替doing?

It +be + no use

no good + doing sth

a waste of time

……

翻译：

1. 和他争论没有用。_______________________________

2. 打电脑游戏是浪费时间。_____________________________________________

注意3：that 后的从句要用虚拟语气（should + 动词原形），should 可以省

(1). It is a pity (a shame /an honor /a good thing/a fact /a surprise/... ) that ...

(2). It is important ( necessary，strange，natural...) that ...

(3).It is

insisted(ordered/commanded,suggested/advised/proposed,demanded/requested/required... ) that ...

注意4：He is said/ reported to have gone abroad.

=It is said/reported that he has gone abroad.

All the students are believed to have done their best.

=It is believed that all the students have done their best.

注意5：It + vi.(不及物动词) + that

It happens that he was out. 碰巧…

It seems that he doesn’t know the secret. 好像…

It appears that he is honest. 好像…

It occurred to me that I lost my purse on the bus. 我突然想到…

It doesn’t matter whether he will come or not. …没有关系 It作形式宾语

基本结构：

动词+ it + 形容词/名词 +（ for/of sb +）to do(动词不定式)

think doing sth（动名词短语）

believe? that 从句（从句）

find? necessary

feel? possible

consider natural,

suppose no use/no good/

make? a waste of time

keep…? ……

I think it important to make a summary in time.

I find it a good habit that we make a summary in time.

He felt it no use learning English without speaking it.

it作形式宾语的特殊句型：V.+ it + if/that/when

动词有喜欢类：enjoy, like, appreciate, prefer

讨厌类：hate, dislike

I would appreciate it if you paid in cash.

I like it in the autumn when the weather is clear and bright.

I hate it when people talk with their mouths full.

It引导强调句 1. 基本结构：It is/was + 被强调部分 + that /who(人) ...

例如：他是因为病了才没能帮我

It was because he was ill that he couldn’t help me.

Was it because he was ill that he couldn’t help me?

Why was it that he couldn’t help me?

2. not…until句式的强调句型：

It is/was not until …+ that ... “直到…才…”

例如：He didn’t get home until it was dark.

，

三．用在固定结构中的it

take it easy. 别紧张

take it for granted 认为···理所应当

believe it or not 信不信由你

make it 成功；完成某事

forget it 忘了吧； 没关系

worth it 有好处，值得做

It/That all depends. 要看实际情况而定

when it comes to···· 当谈到…，但提到…

合集下载

不定代词it的用法

不定代词it的用法

不定代词it的用法

一、不定代词it的基本用法

在英语中，不定代词it充当性别不明、指代某个特定事物或概念等的角色。它是一个非常常用且灵活的代词，能够承担多种种类和功能。在下面的段落中，我将会详细介绍it作为不定代词的几种常见用法。

1. 作为形式主语或形式宾语

在很多情况下，人们使用it作为形式主语或形式宾语来引导句子。这是因为句子的真正主语或宾语可能是一个复杂的短语或从句，而使用it可以把这个复杂结构移到句子后面而不影响主谓结构。

例如：

- It is important to have a healthy diet.（拥有健康饮食习惯很重要。）

- I find it difficult to understand this concept.（我发现理解这个概念很困难。）

2. 作为反身代词

当需要表示某人自己的行动时，人们通常会使用反身代词来强调动作涉及到了自己。在没有特指具体人物时，可以使用it作为反身代词。

例如：

- I really enjoyed the concert last night. It was a great experience!（我昨晚非常享受这场音乐会。它是一次很棒的体验！）

3. 引导形式主语从句或形式宾语从句

在某些情况下，it作为形式主语从句或形式宾语从句的引导词，用来替代真正的主语或宾语，以使整个句子结构清晰明了。 例如：

- It is believed that exercise can improve mental health.（人们认为运动可以改善心理健康。）

- I find it hard to believe that she won the lottery.（我发现难以相信她中了彩票。）

二、不定代词it的特殊用法

除了上述基本用法外，不定代词it还有一些特殊的使用方式。在接下来的几个段落中，我将逐一介绍这些特殊用法。

1. 强调句型

It的用法整理

It的用法整理

It的用法整理

一、 人称代词，用于指上文中提到的，要具体问题具体分析。

二、 虚义代词，用于表示时间，日期，距离，天气等。

Eg: It’s ten past twelve. 现在十二点十分。（it 指时间）

It’s our anniversary. 今天是我们的周年纪念日。（it 指日期）

It’s two miles to the beach. 距离海滩两英里远。（it 指距离）

It was raining this morning. 今天上午在下雨。（it 指天气）

三、 先行it, 用来做形式主语或形式宾语，真正的主语或宾语是动词不定式、动名词或that从句。

Eg: It’s impossible to get there in time. 不可能即时赶到那里。

（it做形式主语，真正的主语是动词不定式to get there）

It’s no use shouting. 喊也没有用。

（it 做形式主语，真正的主语是动名词shouting）

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

你错过了精彩的足球赛，真是遗憾。

（it 做形式主语，真正的主语是that从句）

I find it difficult to cook a meal. 我发现做饭很难。

（it 做形式宾语，真正的宾语是动词不定式to cook a meal）

He feels it important learning English well.他觉得学好英语很重要。

（it 做形式宾语，真正的宾语是动名词learning English）

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

他们发现两天内完成工作很困难。 （it 做形式宾语，真正的宾语是that从句）

it的用法归纳

it的用法归纳

it用法归纳

㈠ 1.it作人称代词

1.1.it的最基本用法是作人称代词，主要指刚提到的事物，以避免重复:

Ningbo is a beautiful city, isn’t it?

1.2.也可以指动物或婴儿(未知性别的婴儿或孩子):

Is this your dog？No, it isn’t.

1.3.也可指抽象事物:

It was a great surprise to me when he did a thing like that．

2.非人称代词it

it有时并不指具体的东西，而泛指天气、时间、环境等，称为非人称的it：

2.1.指天气：

It is a lovely day, isn’t it?

It is a bit windy.

2.2.指时间:

It was nearly midnight when she came back.

2.3.指环境:

It was very quiet in the café.

2.4.指距离：

It is half an hour’s walk to the city centre.

3.it的其他用法

3.1.表示谁在做某事的句子：

Who is it? ---It’s me.

Her face lighted when she saw who it was.

3.2.用来泛泛的指某件事：

So you are going to be married this time？When is it？

It doesn’t matter.

It is a shame, isn’t it?

（二）引导词it的用法

1.作形式主语 为了避免头重脚轻，英语里面常常把it放在句子的开头，而把真正作为主语的动名词，不定式和句子放在句子的后面去。请看下面的例子：

It’s wrong to tell a tie.

It took me ten minutes to get to the station.

It用法及总结

It用法及总结

It用法及总结

陕西丹凤中学 佘君贤

1. it指时间，天气，距离，季节，环境以及自然现象。

Eg. What’s the date today?

It’s october 27th.

2. 代替前面提到的事物。

Eg. The docoter advised him to gigive upsmoking, but it doesn’t help.

3. 指不明性别。

Eg. Who is it?

It’s me.

4. it用做形式主语。

○1. it＋be＋adj ＋to do sth

It is different to solve the problem.

○2 it＋be＋adj＋of ＋sb to do sth

It is selfish of you to do so.

○3 it ＋be ＋adj ＋for sb to do sth

It is important for you to keep fit.

○4 it＋be ＋动词的过去分词＋that 从句

It ＋be＋said / reported / suggested/ thought / believed / has been proved ….＋that 从句

It’s said that he has invented an important thing.

○5 it is no use / good doing sth

It is no use crying for the spilt milk.

○6 it takes sb some time /money to do sth

It took him three hours to finish the task.

○7 it＋be ＋adj＋that 从句（strange, important, natural,….）