高中It的用法专题

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it用法总结高中

it用法总结高中【导语】作者在这里给大家带来it用法总结高中（共17篇），希望大家喜欢!篇1：高中it用法总结it作人称代词：1、指代事物。

作为人称代词，it 可以指除人以外的一切事物或动物。

如：Sam picked up some knowledge of the puter just by watching others working on it. 山姆只是凭借看别人操作电脑就学到了一些电脑知识。

(指the puter) (山东)2、指代人。

主要用于指婴儿或未知的人。

如：I was just going to cut my rose bushes but someone had done it. Was it you? 我正要剪切我的玫瑰丛但(发现)有人已经这样做了。

是你干的吗？(未知的`人) (湖南某)3、代替某些代词。

代词 it 还可用于代替指示代词this, that 以及复合不定代词 something, anything等。

如：—What’s this / that? 这/那是什么？—It’s an orange. 这/那是一个橘子。

it作非人称代词：1、it用于指时间、距离、价值、自然现象、环境等。

如：It rained heavily in the south, causing serious flooding in several provinces. 南方下了大雨，在几个省造成了严重洪灾。

(指自然现象) (天津某)2、it指代前面提到过的或谈话双方都明白的事情或情况。

篇2：it用法总结高中I didn't mean to break it— it was an accident.我不是故意打碎它的—这是个意外。

If it doesn't fit, you can always take it back.要是它不合适，你总还可以把它退回去嘛。

It didn't seem worthwhile writing it all out again.把这再都写出来似乎不必要。

高中英语it的用法课件-(详细有高考题-精品)

Is this your dog？No, it isn’t.
⑶.用来泛泛的指某件事:
It was a great surprise to me when he did a thing like that．
⑷.也可指抽象事物:
It is a shame, isn’t it? You are going to be married this time？When is it？
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.
形式主语
…
possible
It is / was + adj. necessary + ( for sb. ) to do sth. / clause
important
…
It is /was + n.
… one’s duty one’s hope + clause /( for sb. ) to do sth.
Mr Liu
一、基本用法:
it可用来指代前文提到的人,物或事情, 也可以用来指时间, 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?
⑵.也可以指动物或婴儿(不知性别/未知性别的婴儿或孩子):
5. It is a pity ( a shame ... ) that ...

高考英语二轮复习专题IT的用法

6. It is said (reported， learned， thought, believed, known hoped, expected, agreed, accepted, decided, planed, understood, ） that ... 常译为“据说（据报道，据悉．．．）”。 It is reported that another earth satellite has been put into orbit. 译。大家都知道那只猫和那条狗明天要结婚。
no use/no good/ worth one's while/ a waste of time/ money/energy/ words
2.动词+ it + 形容词 + that从（should）
important/ unimportant/ necessary/ unnecessary /natural/ essential
9. It is adj ( for sb. ) to do sth. important， necessary， natural ， impossible ， unusual ， rare ， normal ， easy ， hard ， difficult ， dangerous ， pleasant ， likely, right, wrong,, , clear, obvious, certain, suitable, proper, useful, 等。
特别注意： it, one和that作替代词的用法及区别 1. it代替前面提到的同一事物,该事物既可以是可数名词也可以是不可数名词。 The news that they failed their driving test upset him, ________? A. did they B. didn\‘t they C. did it D. didn\’t it

(完整版)高中语法：it用法

It 的用法It 可用作实词（代词）和虚词（助词）。

实词it 指用于人称和前指（指刚提到的人或物），用于无人称时，做主语，表示时间，距离，天气等。

虚词it 可用作形式主语或形式宾语，也用于构成的强调句型。

（一）实词（代词）1. 用作人称代词1）指人。

例如：Who is it? Is it you, Andrew ?Who is making such a noise ? It must be the children.2）用作前指，代替前文提到过的人或事物。

例如：What a beautiful baby ! Is it a boy ?You have saved my life; I shall never forget it.3 ）代替指示代词this, that。

例如：“What's this ?” “It'sa flag.”4 ）代替一个双方既知所指的东西How 'sit going with you ?2. 用作非人称代词常用作没有具体意义的主语，表示气候，天气，温度，时间，地点，距离等。

例如：1）指天气：It 'sdamp and cold. I think it 's going to rain.2）指时间，季节等：“ what time is it ? ” “It is eight o 'clock. ”I hope it is spring all the year round.3）指距离It is five kilometers from the office to my home.4）指环境，条件等It was very quiet and peaceful here,It was becoming increasing dangerous.5）“无人称it ”也用于表达下列2 个结构表达印象和可能性：It seems as if we've known each other for years, （印象）It looks as though I 'm going to fail the test6）“无人称it ”还用于下列的表达中as it is事实上So be it但愿如此，好吧That' s it !对，是这样！make it到达，成功（二）虚词（助词）1. 作形式主语当动词不定式，动名词，或从句做主语时，通常把她们放在谓语后，而用it 做形式主语。

高中英语语法知识之It的用法总结

高考英语语法知识之It 的用法总结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，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 they that (who) cleaned the classroom yesterday. It was in the street that I met her father.2．It was 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 ...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。

高中阶段It常用句型解析及运用

高中阶段It常用句型解析及运用一、It作形式主语1.It 代替不定式，常用于以下结构：It+ be+ adj./ n. +( for sb )to do sth;It+ be+ adj. +of sb to do sthIt takes +sb+一段时间+ to do①It is important for us to master a foreign language.对于我们来说，掌握一门外语是十分重要的。

②It is very kind of you to help me with my English.你帮我学英语，真是太好了。

③It will take about two days to drive to Shanghai.开车去上海大约要两天的时间。

2.It代替动名词，常用于以下句型中：It is no use doing sth. 做……没有用。

It is no good doing sth. 做……没好处It is fun doing sth. 做……有趣①It’s no use crying over spilt milk.覆水难收。

②It’s no good eating some fast food.吃快餐是没有好处的。

③It’s great fun jumping into the swimming pool in summer.夏天跳进游泳池里游泳是件有趣的事。

3.It代替that从句，常用于以下句型中：It be +adj./ n. +that从句It be +过去分词+ that 从句It seems / appears / happens / turns out that 从句It ourred to sb+ that从句①I don’t know the restaurant, but it’s said that it’s quite a good one.我不知道这家饭馆，但听说相当不错。

(word完整版)it在高中阶段用法句型

It句型背诵一．It 做形式主语●to do 做真正的主语1. 我很方便和他取得联系。

It is convenient for me to get in touch with him.2. 你那样做是很愚蠢的。

It is stupid of you to do so.3. 我们听到那消息很惊讶。

It was amazing to us to hear the news4. 修长城花费了成千上万人很多年的时间。

It took thousands of people many years to build the Greatwall.●doing做真正主语5. 你和他理论是没有用的。

It is no use your arguing with him.6. 覆水难收It is no good crying over spilt milk.7. 雨天爬山真是有趣。

It is great fun climbing mountains on raining days.8这项工作值得做It is worthwhile doing the work.It is worthwhile to do the work.●that 做真正主语9. 他整天责备别人是不足为奇。

It is no wonder that he scolds others all day long.10. 据信他在国外学习/ 要去国外学习/ 去了国外学习。

It is believed that he is studying abroad / to go abroad for study/ has gone abroad for study. He is believed to be studying abroad/ to go abroad for study/ to have gone abroad for study.11. 我突然想起我忘了锁门。

高中英语it 基本用法全归纳及易错点讲与练

高中英语it 基本用法全归纳及易错点讲与练it 基本用法全归纳it 看似简单，但用法却并不简单。

它不仅可以指人也可以指物，不仅可以指时间和距离也可指自然现象和自然环境，不仅可用作形式主语也可用作形式宾语等。

一、用于指事物二、i t用于指代前面已提到过的事物，这是其基本用法。

如：Water expands when it freezes. 水结冰时体积膨胀。

This is our new car. I bought it yesterday. 这是我们的新车。

我昨天买的。

He didn’t give the money to John, but he gave it to me instead. 他没把钱给约翰, 却给了我。

I like pepper but it doesn’t like me. 我喜欢吃胡椒, 但胡椒不适合我的肠胃。

三、用于上文提到的情况it有时并不指某种具体的事物，而是笼统地指前面提到的情况。

如：If you keep doing that, it will do harm to your health. 你要是继续那样，会对你的身体有害的。

Her mother kept telling her not to go out at night, but it didn’t help. 她母亲老叫她晚上不要出去，但是没用。

四、用于指人it有时可用于指人，但通常只限于对方身份不明确的情况下才用，即it用于指人主要用于引出或确定一个的身份。

比较：Mr Smith is at the door. He wants to see you. 史密斯先生在门口，他想见你。

(句中用代词he是因为上句已明确指明是Mr Smith)Someone is at the door. It must be Mr Smith. 有人在门口，一定是史密斯先生。

(句中用代词it是因为上句并未明确指明是谁，it在此是为了引出Mr Smith)下面一句用it也属同样的道理：I knew it was you, I could recognize your voice a mile off! 我知道是你，好远就能听出你的声音。

专项突破全国高考英语it的用法归纳大全(经典值得收藏)

全国高考英语it的用法归纳大全（经典值得收藏）（一）it用作形式主语特殊句式小归纳it用作形式主语有不少非常有用的句式，比如以下一些就值得注意：1. 用于it seems (appears) that…句式。

如：It seems that he knows everything. 他好像什么都知道。

It appears that we may be mistaken. 看来我们可能弄错了。

但是，英语一般不说it looks that…，可改用it looks as if…。

如：It loo ks as if we’ll be late. 我们似乎要迟到了。

2. 用于it happens (occurs) that…句式。

如：It happened that I was standing next to him when he collapsed. 他倒下的时候我恰巧站在他旁边。

It didn’t occur to him that she would refuse his invitation. 他没有想到她会拒绝他的邀请。

3. 用于it follows that…句式。

如：He is wrong, but it does not follow thatyou are right. 他错了，但并不能由此推断你是对的。

She’s not in the office but it doesn’t necessarily follow that she’s ill. 她不在办公室, 并不见得就是病了。

（二）哪些从句作主语时可用it作形式主语原则上说，it用作形式主语可以代替下列从句：1. that从句It is quite clear that he has read the book. 很显然，他读过这本书。

(HM)2. what从句It doesn’t matter what he says. 他说什么没关系。

高中英语语法It的用法总结

高中英语语法It的用法总结一、It 用作实词表达以下概念:指代前文提到的事物，如前文中的this, that；替代前文中的内容；指代一位性别不明的小孩或未知的人；指代未指明但谈话双方都知道的那件事；指代时间、天气、气候、距离等自然现象……二、It 用作形式主语替代作主语的从句、动词不定式、动名词，而把真正作主语的从句、动词不定式、动名词置于句尾。

It 作形式主语的常见句型：1. 代作主语的动词不定式，其句型为:(1) It be adj. (for sb.) to do sth.此处adj. 通常为描述事件的形容词：easy, difficult, hard, necessary, unnecessary, possible, impossible, likely, unlikely, right, wrong, important, unimportant, legal, illegal, well-mannered, ill-mannered, polite, impolite, clear, obvious, certain, suitable, proper, fit, useful, useless, dangerous…例: It is illegal (for a teenager) to drive a car without a license.(2) It be adj. of sb. to do sth.此处adj. 通常为描述人的形容词：kind, unkind, nice, rude, cruel, considerate, thoughtful, thoughtless, careful, careless, silly, foolish, stupid, clever, wise, crazy.例: It's kind of you to help me with the problem.(3) It替代作主语的动名词的常见句型:It's no good/use doing…It's (well)worth doing…It's (well)worth one's while doing/to do…It's (well)worth while doing/ to do例: It's no use crying over spilt milk（覆水难收）.2. It替代作主语的从句常见句型：(1) It is + noun +从句例: It is no secret that the president wants to have a second term at office.(2) It is adj. +clauseIt's surprising that… (should)………竟然……It's a pity/shame that…(should)………竟然……例: It's important that you should apologize to her for your rudeness.(=It's of much importance that you should apologize to her for your rudeness.)(3) It verb sb. + clause= It is v-ing + clauseIt+surprise/delight/interest/disappoint/worry/disturb/annoy/amaze/bother/concern/frighten/please/anger sb. that…例: It worried me that she drove so fast.(= It was worrying that she drove so fast.)(4) It verb (to sb.) that…= sb/sth verb to do例: It (so) happened/chanced that they were out.(= They happened/chanced to be out.)(5) It is v-ed that…=sb/sth is to do(verb=say, report, think, believe, hope, expect, agree, accept, decide, determine, intend, plan, understand, know）例: It is said that the couple have gotten divorced.(=The couple are said to have gotten divorced.)(6) It is v-ed that … (should)…(verb=demand, request, require, order, suggest, advise, recommend例It is suggested that they should begin with the third question.三、It 作主语的句型1. It takes sb. … to do…(=sb takes…to do…)某人用多长时间做某事例: It took the men a week to mend our roof.(= The men took a week to mend our roof.)2. It's (just)(un)like sb. to do…（不）像某人做某事的风格例: It was (just) like him to think of helping us.3. It's (about/high) time that… should /v-ed…是该做某事的时候了例: It's(about/high) time that we should take action.4. It's the x-th time (that) … have v-ed…第几次做某事了例: It's the third time that he has failed the driving test.5. It is/has been… since …continuous v-ed(延续性动词) 某动作持续了多长时间例: It's 10 years since he lived here6. It was(not)… before…过(不)了多长时间某动作发生了例: It was not long before they arrived.四、It 作形式宾语用来替代作宾语的从句、动词不定式、动名词，而把真正作宾语的从句、动词不定式、动名词置于句尾。

高中英语it 用作形式主语宾语的用法及24个it句式盘点总结(有习题)

高中英语it 用作形式主语/宾语的用法及24个it句式盘点总结一、用作形式主语当不定式、动名词、从句等用作主语时，避免头重脚轻，通常在句首使用形式主语it，而把真正的主语放在句子末尾。

如：It is stupid to do such a thing. 做这种事真蠢。

It’s no good sitting up too late. 熬夜没有好处。

It is necessary that he should be sent there at once. 有必要马上派他到那里去。

注：类似以下句子中的it也可视为形式主语：It happened that the harvest was bad in 1988. 碰巧1988年的收成很不好。

It seems that she is afraid to tell them about it. 似乎她怕将此事告诉他们。

二、用作形式宾语当不定式、动名词、从句等用作宾语且其后跟有宾语补足语时，就应在宾语补足语前使用形式宾语，而将真正的宾语移至句末。

如：I’ve made it a rule never to hurry. 我已养成凡事从容不迫的习惯。

Do you think it possible to root out crime? 你认为可以根除犯罪吗?He found it difficult to breathe at high altitudes. 他觉得在高空呼吸困难。

注：通常意义的形式宾语主要见于真正宾语为不定式、动名词、从句等且其后跟有宾语补足语时的情形，即用于“动词+it+宾语补足语+真正的宾语”这样的结构，但以下两类形式宾语却比较特殊，其后没有宾语补足语：1. 由于介词后通常不能直接跟that从句作宾语，有个别特殊结构就在介词后先接it作形式宾语，再跟that从句。

如：You may depend on it that it is true. 你可以相信这是真的。

高中英语之it的用法详解

高中英语之it的用法详解首先先讲一下it的用法，然后在出几道题一、考点聚焦1、it的基本用法（1）用作人称代词，代替前文提到过的事物。

The train has arrived. It arrived half an hour ago.（2）用以代替提示代词this, that。

—What’s this?—It’s a knife.—Whose watch is that? —It’s mine.（3）起指示代词的作用，指一个人或事物。

—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? —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 as pity that you didn’t read the book.（8）作形式宾语。

I think it no use arguing with him.I found it very interesting to study English.He made it clear that he was not interested in that subject. （9）用于强调结构。

It was Xiaoming whom(that)I met in the street last night.It was in the street that I met Xiaoming last night.It ws last night that I met Xiaoming in the street.It was I who met Xiaoming in the street last night.2、含有“It is …”的句型（1）It is time (for sb.) to do sth.It is (high) time that sb. did sth.(虚拟语气)（2）It is + 形容词（+of / for sb.）+ to do sth.通常用 of的词有brave、clever、careful、hopeless、kind、good、naughty、nice、silly、stupid、foolish、wise等。

高中It的用法

It的用法一、考点、热点回顾1、强调句型：it is/was ....that/who 就是2、做人称代词，代表前文出现的事物本身。

Eg. He took a stone and stone and threw it.What is this? It’s an apple.3. 指示代词的作用，用来代指人或事物（性别不明）Eg. What a lovely baby! It’s a girl.4. 指代环境情况It’s terrible. It is very noisy at that moment.5. It 代表天气，时间，距离，状态。

6. It 作形式主语。

It is/was+表（adj、n）+to do/that/doingEg. It is useless talking with him.7. It 作形式宾语find, think,consider, make, feel+it+宾补+to to/that/doingEg. I find it a bad habit to eat too much junk food.We must make it clear that we’re doing an important job.He considered it no use discussing it again with him.8. 在特定短语中作宾语。

1) Catch it 受责备、惩罚If your father finds you here, you’ll really catch it.2) I like it here.3) Make it 成功做某事Can I make it 28th December?4) Walk it 步行let’s walk it back home.5) We had a good time of it. 玩的愉快6) Like/ hate/enjoy it that/when...I hate it when people talk with their mouth full.7) think of/see to it that you always carry some presents.9. 常见句型1）it is/was +表语+（for/of) to do2）It is/was+表语+that...3）It is/was+adj/n.+doing sth这样的词有：no/little use, no/much good, useless, a waste of time+doing. Eg. It’s no use crying over spilt milk.4). It takes sb.+一段时间+to do sth5). It is +done+that 从句（主语从句）It is said / known/ reported/recorded/thought/considered/hoped that...6). It +及物动词+that从句常见的及物动词有：seem, happen, appear, matterEg. It seems that there will be a heavy snow tomorrow.7). It is/ has been+一段时间+since从句，从句中的谓语动词一般用过去时。

高中关于it的用法

ｉt的用法一、概述在英语中，it的使用相当广泛,它既可用作代词，如人称代词（ｐｅrｓonaｌit）、指示代词（ｄeｍonstｒativｅit)及非人称代词(impersonal ｉt), 也可用作引导词（anｔｉcipａtor ｙit）和强调结构中的强调词（emphatiｃit)。

Sｏmeone is rｉngｉng the ｄｏorｂell.Go and see whoｉt is．有人在按门铃。

去看看是谁。

(人称代词)ﻫ--－-Ｗhａt’s this?这是什么？---－Ｉt’ｓaｂｏｏk. 这是一本书。

(指示代词）ﻫWｈat ａlong way ｉt ｉs frｏm ＢｅijinｇtｏＬonｄon! 从北京到伦敦真远。

(非人称代词）ﻫIt'ｓbｅｓｔtｏpｌant trees in sprｉｎg bｅcａuse ｉｔ's warmｅr.春天是植树的最佳时节,因为天气更暖和。

(作引导词）ﻫIt ｗasＩwho met him ｉn tｈe ｐark ｌaｓtｗeek. 是我上星期在公园遇到他的。

(强调结构中的强调词）二、it作代词1、用作人称代词（persｏｎal iｔ)代替前文提到过的事物，it作真实主语或宾语。

ﻫThｅfrｏg ｉs ｎotａwaｒm-bｌoodedａｎimaｌ.It iｓａcold-ｂloｏded one.青蛙不是温血动物，它是冷血动物。

Mｙpeｎis missing. Ｉcan't fiｎd it anywｈerｅ. 我的笔丢了,我哪儿也找不到它了。

ﻫＩwon＇ｔbe back toniｇht. Please tｅｌl mｙｗife ａbout iｔ.我今晚不回来了,请你向我妻子说一声。

ﻫ I ｗａs disａppoinｔed wiｔh theｆilm.I ｈad expectｅd it to bｅmｕch betteｒ. 我对这部电影很失望，我曾盼望它更好。

【高中英语】高中英语辅导：it用法的常考五种类型

【高中英语】高中英语辅导：it用法的常考五种类型一、考查 it 用作形式主语的用法当不定式、动名词、从句等用作主语时，为避免头重脚轻，通常在句首使用形式主语it，而把真正的主语放在句子末尾。

如：It’s no good sitting up too late. 熬夜没有好处。

It is quite clear that he has read the book. 很显然，他读过这本书。

It doesn’t matter what he says. 他说什么没关系。

【特别提醒】注意it用作形式主语的三类特殊句式：1.用作动词look, seem, appear, happen, occur, follow等的主语(后接that从句或as if从句)。

如：It seems that he knows everything. 他好像什么都知道。

It (so) happened that I had no money with me. 碰巧我没带钱。

2.当系表结构后接有if 或when引出的状语从句时，通常在系表结构前使用形式主语表示说话人对某情况的看法。

如：It was a great surprise to me when he did a thing like that. 他这样做使我很吃惊。

It would be a tragedy if anything went wrong. 如果出了什么事就是一个悲剧。

3.用于if it were not for… / if it hadn’t been for…(若不是因为)。

如：If it hadn’t been for the freezing wind they could have reached the injured man in time. 要不是有刺骨的寒风，他们就及时赶到伤员身边了。

感谢您的阅读，祝您生活愉快。

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It的用法（专项总结）一、人称代词1，it的最基本用法是作代词，主要指刚提到的事物，以避免重复:①They watched the train until it disappeared in the distance.2.，也可以指动物或婴儿(未知性别的婴儿或孩子):②Is this your dog？No, it isn’t.③They got a baby and it was a ten-pounder3.，也可指抽象事物或指抽象环境和情景:③I hate it when people talk with a full mouth.．二、.非人称代词1.it有时并不指具体的东西而泛指天气、时间、日期、距离、价值、度量、温度、环境等：⑴.指天气：It is a lovely day, isn’t it? ⑵.指时间: It was nearly midnight when she came back.⑶.指日期:It is April First today. ⑷.指距离:It is some 3000 kilometers from A to B.⑸.指价值:It is three dollars. ⑹.指温度:Today it is 30 degrees centigrade.三、其他用法1.在句子的主语不太明确时充当主语，表示谁在做某事：①Who is it there? It's I (me/you/he.....). ②I thought it was Mary, but it was not she.③Her face lighted when she saw who it was.2.泛泛的指某件事： (有时泛指一般情况)①It doesn’t matter. ②It is a shame, isn’t it? ③How is it going?(情况怎样)④It says in the newspaper that......3.it用在一些词组中，it 没有特别的意思The last train's gone. Come on, we'll foot it.(来，咱们步行吧。

)四、作形式主语，替代主语从句，动词不定式，或动名词短语：1.作形式主语替代主语从句⑴It is clear ( obvious， true， possible， certain....) that 从句常译为＂┅清楚的（显然的，真的，可能的,肯定的．．．）＂It is very clear that he’s round and tall like a tree. = That he’s round and tall likea tree is very clear.⑵It is important ( necessary， right， strange， natural...) that 从句常译为┅是重要的(必要的,对的,奇怪的,自然的┅).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。

①It is important that we (should) learn English well.②It is necessary that he (should) remember these words.⑶It is said (reported/ learned/believed/thought/known/told/hoped.....) that 从句常译为＂据说（据报道，据悉．．．）＂。

①It is said that he has come to Beijing. ②It is reported that another earth satellite has been put into orbit.⑷It is suggested ( advised/ ordered / demanded/ insisted/ commanded... ) that 从句.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．．．）①It is suggested that the meeting ( should ) be put off.②It was ordered that we ( should ) arrive there in two hours.⑸It is time ( about time ，high time ) that从句(虚拟语气:动词用过去时did)① It is time that children went to bed.⑹It is the first ( second ... ) time that从句(从句用现在完成时 have done )It was …(从句用过去完成时had done )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 here⑺It is a pity ( a shame /an honour/a good thing/a fact,/a surprise/... ) that从句.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。

①It 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！②It is a pity that he is ill. 他生病了，真遗憾！⑻It happens (seems， looks， appears ) that从句.常译为“ 碰巧…,似乎是…,看起来…”①It happened ( so happened ) that he met his teacher in the street. 碰巧．．.②It seems that he will be back in a few days. 看来．．．2.作形式主语替代不定式. ⑴ It is kind ( of sb. ) to do sth. 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褒义或贬义形容词。

常见的词有：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. 。

如:It is kind of you to say so. = You are kind to say so.⑵It is necessary ( for sb. ) to do sth. .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，安全等情况的中性形容词。

常见的形容词有：important， necessary， natural easy ， safe ， common ， normal ， hard ， difficult ，dangerous ， unusual， rare ， impossible ， pleasant如:It is important for her to come to the party. = It is important that she (should ) come to the party.⑶It takes sb. ... to do sth. 常译为＂做．．．要花费某人．．．＂。

如:It took thousands of people many years to build the Great Wall.3.作形式主语替代动名词短语It is no good / no use / useless doing sth. 常译为“┅有好处或没有用”①It is no good learning English without speaking English.②It's useless trying to argue with Shylock.五、作形式宾语，代替不定式，动名词短语或宾语从句。

We think it important to learn a foreign language.该句型中的it 作形式宾语，该结构中常用的动词有：think, believe, make ,find consider, feel；如: 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.The Internet makes it easier for companies to keep in touch with customers.CF: keep sth, in mind / keep in mind that六、.it的重要句型1.强调句型: It is/was + 被强调部分 + that 从句 (被强调的主语如果是人，that可以由who换用)①It was about 600 years ago that the first clock with a face and an hour hand was made.②It was they that (who ) cleaned the classroom yesterday.特例:It is not until + 被强调部分 + that ... 该句型也是强调句型。