Unit 3 A healthy life Editor: Yang Wenhua

Unit 3 A healthy life Learning Plan (Grammar)

Objective:

To learn the use of “it” properly it的用法总结：

形式主语；形式宾语；人称代词；代替指示代词；非人称代词表示时间、日期、地点、天气、温度、距离、环境等；某些习语及习惯用法。 1. 做形式主语

it 可以用作先行词作为句子的主语,而把句子的真正主语移到后面去, 可以移到后面的主语是：

1) 不定式 句子的谓语可以是: be + 形容词

e.g. It is important to know your limitations. 知道自己的局限性是很重要的。 be + 名词；

e.g. It is a good idea to have a little notebook handy. 手边有个小笔记本是个好主意 be + 介词短语；

e.g. It is against the law to do that. 这样做是违法的。

其他类型的谓语

e.g. It gives me great pleasure to see the movie. 观看电影让我很高兴。 2) 动名词

? 用no good, no use, great fun, a new experience等名词作表语；

e.g. It is fun working for him. 为他工作很有意思。 ? 也可用某些形容词作表语；

e.g. Do you think it is worthwhile quarrelling with him?

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it的用法总结

it 用法虽不是高考的热点，但近几年全国各省市高考试题经常出现对it用法的考察。It的用法之多值得我们在学习过程中高度关注。同时我们不能疏忽it与其他语言知识点相结合进行命题的趋势。下面就帮你系统归纳其基本用法，并通过高考试题进行巩固，让你轻松掌握it的用法。

一、 it 的基本用法：

（1）用作人称代词，代替前文提到过的事物。

My mother bought me a new chothes.It was very beautiful.

（2）用以代替提示代词this, that。

—what’s this in Eenglish?

—It is a knife.

（3）起指示代词的作用，指一个不明身份的人或事物。

—who is knocking at the door?

—it’s me.

（4）指环境情况等。

it was very noisy (quiet) at the very moment.

（5）指时间、季节等。

—what time is it now?

—it’s eight o’clock.

It often rains in summer here.

（6）指距离。

It is a long way to the school.

（7）作形式主语。

It is not easy to finish the work in two days.

It is no use crying over spilt milk.

It is a pity that you didn’t read the book.

（8）作形式宾语。

I found it very hard to fininsh homework before eight.

（9）用于强调结构。

it is∕was + 被强调部分 + that/who + 句子的其他部分

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关于It的用法总结

关于It的用法小结：

1.It is+被强调部分+that

该句型是强调句型，将被强调的放在前面，其他部分置于之后，强调的主语如果是人，可以用来替换，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他从句的方法。

It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father.

It was with great joy ___he received the news that his lost daughter had been found. (2004 福建)

A. because B. which C. since D. that (D)

2. It is not until +被强调的部分+ that

该句型译成汉语“直到??才”，可以说是的强调形式。It was not until she took off her dark glasses that I realized she was a film star. =Not until she took off her dark glasses did I realize she was a film star. =I didn’t realize she was a famous film star until she took off her dark glasses.

It was ___back home after the experiment. (2004 湖北)

A. not until midnight did he go

B. until midnight that he didn’t go

C. not until midnight that he went

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It用法总结

it的用法

1． it作代词

(1)在答语中替代this或that。如：

-What's this？ -It's a frog.

(2)指已提到过的物体。如：I've lost it on my way home.

（3)指情形、行为等。如： Jack is ill. Have you heard about it?

(4)指人（不明的人或婴儿）。如： Who is it?

(5）指天气、温度、时间、距离等。如： It is raining. It's very hot. It's five o'clock.

2.引导词it

(1）作形式主语。如：

It is difficult to understand the passage.

It is no use trying.

It is said that the meeting will be put off.

4)It+take+(sb.) some time / some money+to do sth. 例如:

It will take them more than ten years to complete the Three Gorges Dam.

5)It+be+said / reported / told等+that-clause. 例如:

It is said that he will leave for Beijing tomorrow.

6)It+vt.+sb.+that-clause. 例如:

It worried her a bit that her hair was turning grey.

[原题再现] ①________is a fact that English is being accepted as an international language.

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It 的用法总结

１．作人称代词

John likes playing table tennis. He always does it in the afternoon．(指代上下文提到的事物) It's time we went home.

How far is it from here to your home?

It is getting warmer and warmer．

It's very quiet at the moment．(可指时间、天气、环境等)

２．引导词

Ａ．作形式主语，代替由不定式、动名词或从句表示的真正主语。

It's important for us to learn a second language．

It's no use talking to him．

It's known to all that the earth goes round the sun．

B．作形式宾语，代替由不定式、动名词或从句表示的真正宾语。

We feel it our duty to help others．

He made it clear that he would leave the city．

C．强调结构：It is (was) +被强调部分＋that (或who)…

注意: 在强调结构中，如被强调部分为时间状语或地点状语，其后的连接词也绝不能为when 或where，而应用that 。在复习中，一定要注意句式的不同。

It was in Shanghai that I bought the guitar．(that引起强调句)

It was Shanghai where I bought the guitar．(where引起定从)

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It句型小结zhaodavid 词汇语法 it句型, 语法 1 Comment 发表评论

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。强调的主语假如是人，that可以由who换用。假如把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判定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 …..

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" It" 做形式宾语用法总结

当不定式（短语）、动名词（短语）或从句在某个句子中作宾语时，为保持句子结构平衡，避免句式结构的混乱，常用it作形式宾语，而将真正的宾语放在句尾，构成“动词＋it＋宾语补足语＋不定式（动名词或从句）”结构，也可称作“6123结构”。此时it仍只起先行引导作用，本身无词义。它可以代替三种形式：不定式、动名词和宾语从句。

it作形式宾语时，需具备两个条件： ① ② 足语，具备了这两个条件，形式宾语it一定要用。

⒈ it代替不定式短语 think/ find/ feel/ consider/ make/ regard…+ it +形容词/名词 + 不定式短语 如：

①I find it pleasant to work with him.

(it 作形式宾语，代替不定式短语to work with him)

②They felt it difficult to finish the work in such a short time.

（ it 作形式宾语，代替不定式短语to finish the work in such a short time）

③She thinks it her duty to help us.

（ it 作形式宾语，代替不定式短语to help us）

④I think it my honor to be invited to speak here.

（ it 作形式宾语，代替不定式短语to be invited to speak here）

⑤Tom didn’t find it difficult to write letters in Chinese.

（ it 作形式宾语，代替不定式短语to write letters in Chinese）

⑥All these noises made it impossible for me to go on with the work.

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