英语It的用法
引导语：it 原意在英语中指代物的第三人称单数，通常含义为“它”。以下是百分网小编分享给大家的英语It的用法，欢迎阅读!
英语It的用法 篇1
<例句>
It was you who had been wrong.
错的是你。
<语法分析>
it 强调句子的主语，可用 who 或 that 引导句子的后面部分。用于强调的 it，可以对句子的某一处成分加以强调。例如可以强调句子的主语、宾语以及状语等。It 的用法有很多，它最基本的用法是作代词，主要代表刚提到的事物以避免重复，也可以代表某些抽象事物或代表一个彼此都知其何所指的东西。有时也可以不指具体的.东西，例如天气、环境和时间等。先行词的it 主要作为句子的形式主语，从而使句子变得平稳。
<触类旁通>
(1) It was a great surprise to me when she did a thing like that.
她做这样的事情我大为吃惊。
语法分析：It代表抽象的事物。
(2) Where does it hurt?
哪儿疼?
语法分析：it代表一个彼此都知其何所指的东西。
(3) How fat is it to Beijing?
到北京有多远?
语法分析：it代表距离。
(4) It was she who lent us the money.
是她借钱给我们的。
语法分析：it用于强调句中，强调句子的主语。
(5) It's beyond me to say why.
我无法说个究竟。
语法分析：It作先行词，作句子的形式主语，有平稳句子的作用，句子谓语有这几种：be +形容词或名词，介词短语+不定式，及物动词+宾语+不定式。
<巩固练习>
1. _____ says here there was a big fire in the city.
2. “Why, ____ is you!” she cried.
3. _____ takes two to make a quarrel.
4. Why is _____ that everyone thinks I'm narrow-minded?
5. Was _____ you that broke the window?
6. Does _____ itch much?
<参考答案>
1. It 2. it 3. It 4. it 5. it 6. it
英语It的用法 篇2
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.
（ it 作形式宾语，代替不定式短语to go on with the work）
⒉ it代替动名词短语( 这只限于少数句型，在多数情况下用不定式时更多一些)
如：
①The professor considers it no good reading without understanding.
②Do you consider it any good trying again
③He found it useless( no use) arguing with him.
④He thought it absolutely senseless attempting the impossible.
⑤I don’t think it worthwhile going to such a place.
⒊ it代替宾语从句：
如：
①We all thought it a pity that the conference should have been cancelled.
②I took it for granted that they were not coming.
③I’ll see to it that everything is ready in time.
“it”的特殊用法常出现在以下几种结构中。
A. 动词＋it＋when / if 从句。常见于appreciate, enjoy, like, dislike, love, hate, prefer等少数动词之后。
We would much appreciate it if you could do us that favour.
I'd prefer it if I didn't have to finish the work.
B. 动词+ it + that从句。常见于like, take, have, put等少数动词之后（it相当于that从句的同位语）。
I take it that they will succeed sooner or later.
The newspapers have it that some Japanese firms have gone bankrupt.
Rumor has it that Mary is getting married.
I take it that you have been out.
Let me come and stay. You can put it that it was arranged before.
C. 动词 + it + 介词短语 + that从句。常见于bring it to one's attention; owe it to sb; take it for granted 等结构中。
I owe it to you that I finished my work in time.
Don't take it for granted that they will support you.
D. 动词 + 介词(短语) + it + that从句。常见于answer for, depend on, rely on, insist on, look to, see to, stick to 等结构中。
I'll see to it that everything is ready in time.
You may depend on it that Tom will help you with your English.
I’m counting on it that you will come.
E. 动词+ it +过去分词+从句。常见于几个可以带过去分词作宾语补足语的动词之后。
I heard it said that that factory was founded in 1995.
They haven't made it known where the meeting is to take place.
易混用其他句型
英语中有一些句型不含it, 但却易被误用了it，常见的有以下句型：
⒈ There is something/nothing wrong/ the matter with sb./ sth.
如：There is nothing wrong /the matter with him. He’s just pretending. 他没什么事，他只是在装呢。
⒉ There is no doubt about…对…毫不怀疑
There is no doubt that…对…毫不怀疑
如：①There is no doubt about his suitability for the job. 毫无疑问，他适合这个工作。 ②There is no doubt about the fact. 关于这个事实毫无怀疑。
③There is no doubt that he is hard to deal with. 毫无置疑他很难对付。
⒊ There is no need (for sb.) to do sth.没必要…
如：①There was no need for him to remain in Paris. 他没有必要继续留在巴黎。 ②There is no need for you to start yet. 你现在还不必动身。
⒋ There is no/a possibility that… …没可能/有可能
(= It is impossible/possible that …)
如：①There is a possibility that the train may be late. 可能火车要晚点。
②There is no possibility that we’ll see him this weekend. 我们本周末不可能见到他。
⒌ There is a chance that …可能…
如：There is a chance that the sick child will get well. 这个生病的孩子可能会好起来的。
⒍ There be no/ some differences between…and……和…之间没/有区别
如：There are some differences between the two languages. 这两种语言之间有些区别。
⒎ After what seemed + 时间
如： After what seemed a very long time, the wounded soldier came back to life.
在经过似乎很长的一段时间之后，那个受伤的士兵苏醒了过来。
⒏ There be difficulty/ trouble (in) doing sth.干…有困难
如：There was no difficulty in finding him. 找到他没费什么事。
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