第二章 “It”用法及其句型和固定搭配讲解

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it的用法

语法：it的用法一.it 作人称代词1.it的最基本用法是作代词，指代前面所提到过的事情、事物、群体、想法，也可以指代未指明但谈话双方都明白的事情或情况。

如：The Parkers bought a new house but it will need a lot of work before they can move in.---I have broken a plate.---It (Breaking the plate) doesn’t matter.2.it也可以指代性别不明或性别被认为不重要的人或动物。

如：---Is it your dog？---No, it isn’t.二.it 作非人称代词1.指时间It is half past two now.2.指距离It is 6 miles to the nearest hospital.3.指温度It is very cold in the room.4.指天气A lovely day, isn’t it?/ It is a bit windy.5.指日期---What’s the date today? --- It’s May 1st, 2014.6.指季节It is winter now.7.指环境It was very quiet in the café.8.指价值---What’s the price of the T-shirt？---It is 150 yuan.三.it作形式主语1.it替代作主语的动词不定式（to do）(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, possible, right, important, polite, clear, obvious, useful, dangerous, legal, illegal等。

it的用法

it的用法“It”用法及其句型和固定搭配，是英语语法的重点、难点，又是近几年考试的热点，因此在复习中应给予足够的重视。

It 句型归纳：1． It is ＋adj．(＋for sb．／sth．) ＋ to do sth．用于此句型的形容词有：easy， hard， difficult，possible， important，impossible， necessary， good， bad， exciting， interesting， surprising 等。

如： It is necessary to change your job．It was very hard for them to walk such a long way in the snow．2．It is ＋n．(＋for sb．／sth．) ＋ to do sth．用于此句型的名词有： pity, shame, pleasure, one’s duty, one’s job, fun, joy, good manners, bad manners等。

如：It is a pity for you to have missed such a wonderful play．It is bad manners for the young to take up the seats for the old．3．It is ＋adj．＋of sb．＋to do sth．此句型中的形容词主要描述某人的品德、特征。

能用于该句型的形容词有：kind, nice, wise, silly, polite, impolite, friendly, foolish, clever等。

如：How silly it was of you to give up such a good chance！It is friendly of the family to try to make me feel at home in their house．4．It is ＋adj．（＋n．）＋doing sth．此句型中的形容词和名词常见的有：no／little use, no／much good, useless 等。

高考重点：It的用法以及含有it的句型

高考重点：It的用法以及含有it的句型英语中it 一词结构看似简单，但其词义广泛，使用范围很广，常令一些初学者感到头痛。

It用法及其句型和固定搭配，是英语语法的重点、难点，又是近几年考试的热点,在高考中也是重现率较高的语言点，其考查方式多通过“单项填空”进行，偶尔也出现在“短文改错”和“完形填空”中。

因此在复习中应给予足够的重视。

下面笔者就it的用法简单归纳如下。

一、代替上文中提到过的人或事物。

指代人时，一般用于小孩或身份不十分明朗的人。

1) －Who is the baby? －It‘s my teacher’s son．2) －Who is that gentleman? －It's my friend Tom．He(不可用It) wants to see you．不定代词one 指代前文提到的同类事物之一，而it 特指上文中提到的同一事物。

试对比：This pair of shoes is small. May I have another one？（泛指的另一双）这又鞋子太小了，再拿一双给我看看好吗My pen is missing.Ican’td find it.我的钢笔丢了找不到了(it指my pen)二. it 作为无人称动词的主语，表示天气，时间，距离，环境情况等等。

这时的it 不指某个具体的东西。

没有明确的含义。

译成汉语可不必译出来。

如1).It‘s half an hour’s walk from here to our school．从这儿到我们学校是步行一个小时的路程2) It‘s nice and warm here．这里非常暖和3) But it's two o'clock now, and it's time for us to go to school．两点了该是上学的时间了4) It’s quite close in the room . Let’s open the window for a while。

English Learning(Chapter2 “It”用法及其句型和固定搭配讲解)

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
六、It 常用的固定搭配
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。 It 作形式宾语的常见句型： 1. verb+ it+ adj./noun (for/of) to do/clause (verb=think, believe, suppose, consider, feel, make, keep…) 例 I think it hard for you to do the task on your own./I think it hard that you'll do the task on your own.

(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.

“It”用法及其句型和固定搭配讲解

“It”用法及其句型和固定搭配讲解“It”用法及其句型和固定搭配,是高中英语语法的重点、难点,又是近几年高考的热点，因此应给予充分的重视,现将it用法归纳如下:一、It用作实词表达以下概念：指代前文提到的事物,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 bｅadj．(fｏr ｓb.)ｔo dｏｓth．此处adj. 通常为描述事件的形容词：easy，ｄiffｉcult，hard，nｅcessaｒy,ｕnnecｅssa ｒｙ,possible，iｍpossible，liｋely，ｕnliｋｅly,riｇｈｔ，wrong，ｉmportant,uｎｉｍpoｒt ａnt，leｇal,illegal，wｅll-maｎｎerｅd,ill－manｎｅｒｅd,ｐolite,impolite，clｅar,obviｏu ｓ,cｅrｔaｉｎ,ｓuｉｔａble，ｐropeｒ，fiｔ，uｓefuｌ,useｌｅsｓ,ｄanｇeroｕｓ…例Iｔis iｌlegａl(ｆｏrａｔeｅnagｅｒ）to dｒiveａcａr withoｕt a licens ｅ.(2）It be adｊ．oｆsb. toｄo 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＇ｓkiｎdｏf yｏｕto help me wiｔｈｔhe proｂlｅm.（3)It替代作主语的动名词的常见句型It'ｓnｏｇｏod／usｅdｏinｇ…Ｉｔ＇ｓ（welｌ）wortｈdoｉng…It＇s（well）worth oｎe＇ｓwhilｅdoing/to do…Iｔ's（weｌl）ｗorth while doiｎg/ to do例Ｉt＇s no usｅcryｉngｏvｅr ｓpilt milk.2. Iｔ替代作主语的从句常见句型（1）It is ＋nouｎ+从句例Iｔis ｎo ｓｅcret thaｔtｈｅpresidentｗants ｔo hａve ａｓecond ｔerm at office．（2）It is adj. +cｌauseＩt'ｓsｕrprisｉnｇtｈat…(ｓhould）………竟然……It＇s a piｔy/ｓhame tｈat…(sｈould）………竟然……例It＇s importaｎt thａｔyｏu ｓｈoｕld apoｌoｇiｚe tｏher foｒyouｒrudeｎess.(=It's ｏf mｕch ｉmｐｏｒtａnｃｅthat yｏｕshｏｕld apｏlogｉze to ｈer for yoｕr rｕdeｎess．)（3）Iｔｖerｂsb. + claｕse= It ｉs v-ｉng + ｃlauｓeIｔ+suｒpｒｉse/ｄeliｇht/inteｒｅst/ｄｉsaｐpoiｎｔ/ｗoｒry/diｓturｂ/ａｎnoy/amaze /ｂother/ｃonｃｅrn/ｆｒｉghten/pｌeａse/anger ｓb. ｔhat…例Iｔwｏrried mｅthaｔshe ｄroｖe ｓｏfast.(＝Iｔｗas wｏrｒｙing that ｓhe dｒovｅso fasｔ.）（4）Iｔverb（ｔo sｂ.)tｈａt…= sb／stｈverb tｏdo（vｅｒｂ＝ａpｐeａr,seeｍ,ｃome about，emerge，ｆｏｌｌｏw,chance,hａppen，oｃｃur,transpire,turn ouｔ,ｗork ouｔ)例Ｉt(so）ｈappeneｄ/chanced thａt tｈey werｅoｕt.(＝Tｈｅｙhapｐened/c ｈanceｄto ｂe ｏut.）（5)It is v-ed that…=sb/ｓtｈｉs to do(verb=say,report，tｈinｋ,belieｖe,hope，exｐｅcｔ,agree，acｃept，deｃidｅ，dｅtｅrmine，intenｄ，ｐｌan,unｄerstａnd,ｋｎow)例It is said that the couple hａvｅgottｅｎｄivorcｅd.(＝Thｅcｏupｌe aｒe said to have goｔten ｄivorced.）（６)Ｉt ｉｓv－eｄthat …（ｓhouｌｄ)…(verｂ＝deｍand，ｒeｑuest,reｑuｉｒe,oｒdｅｒ,sｕｇｇｅsｔ,ａｄvise，rｅｃoｍmｅｎd例It is suggeｓted tｈａt tｈｅy should begｉn with the tｈirdｑuｅｓｔion. “It”用法及其句型和固定搭配讲解2007-0５-０１17:１4：０5.０中国高中生网()三、Ｉt作主语的句型1．It tａkｅs sb.…tｏdo…（=sb ｔａkes…tｏｄo…）某人用多长时间做某事例It took tｈe meｎａweｅk ｔo menｄour roof．（= Tｈe men toｏk a ｗeek t ｏmｅnｄoｕｒroof.）2. It's（ｊuｓt）(uｎ）lｉke sb．to dｏ…（不）像某人做某事的风格例Ｉｔｗas(juｓt)lｉｋe ｈimｔo 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)tｉmｅthat we shouｌｄtａke ａｃtｉon.４．Iｔ'sｔhe x－th timｅ（ｔhat)…have v－ed…第几次做某事了例Iｔ's the third tiｍe thaｔhe ｈas faｉledｔｈe ｄrｉvｉnｇｔest.5．It is/ｈas ｂｅen…since…cｏｎtinuｏus v-ｅd（延续性动词)某动作已有多长时间不发生了例It＇s 10 yｅars tｈａt he lｉveｄheｒe６.It ｗas(noｔ）…befoｒe…过(不)了多长时间某动作发生了例It was noｔlong 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。

has it 倒装句讲解

has it 倒装句讲解“It”用法及其句型和固定搭配一、It用作实词表达以下概念:指代前文提到的事物，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1. 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……(3) It verb sb. + clause= It is v-ing + clauseIt+surprise/delight/interest/disappoint/worry/disturb/an noy/amaze /bother/concern/frighten/please/anger sb. that …(4) 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）(5) It is v-ed that …(should)…(verb=demand, request, require, order, suggest, advise, recommend 例It is suggested that they should beg in with the third question.三、It作主语的句型1. It's (just)(un)like sb. to do某人的风格2. It's (about/high) time that…should /v-ed…3. It's the x-th time (that) …have v-ed…4. It is/has been…since …continuous v-ed(延续性动词) 某动作已有多长时间不发生了5. It was(not)…before…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用法及其句型和固定搭配讲解

高中英语It用法及其句型和固定搭配讲解小编为大家准备了这篇高中英语It用法及其句型和固定搭配，帮助大家对it有更多了解。

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高中英语It用法及其句型和固定搭配讲解"It" 用法及其句型和固定搭配，是高中英语语法的重点、难点，又是近几年高考的热点，因此应给予充分的重视，现将it用法归纳如下：一、It用作实词表达以下概念:指代前文提到的事物，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.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 atoffice.(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 yourrudeness.(=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/ann oy/amaze/bother/concern/frighten/please/anger sb. that…例It worried me that she drove so fast.(= It was worrying that shedrove so fast.)(4) It verb (to sb.) that…= sb/sth verb to do(verb = appear, seem, come about, emerge, follow, chance, happen,occur, transpire, turn out , work out)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.)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 tomend 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) 某动作已有多长时间不发生了6.It was(not)…before…过(不)了多长时间某动作发生了四、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。

高考英语It的用法

高考英语It的用法It是高考英语中一个极其重要的词，其用法多样，在不同的语境中具有不同的意义。

下面我们将从it的用法、句型和固定搭配三个方面进行讲解。

一、it用作实词1、表示时间、天气、距离、温度等自然现象。

例如：It is Monday today.今天是星期一。

It is raining outside.外面正在下雨。

It is 5 kilometers away from here.距离这儿有5公里远。

2、表示观点、看法、态度等主观想法。

例如：I think it is a good idea.我认为这是一个好主意。

We think it is important to learn English well.我们认为学好英语很重要。

二、it用作形式主语当不定式、动名词或从句作主语时，为了保持句子结构平衡，避免头重脚轻，常用it作形式主语，代替不定式、动名词或从句，而把真正的主语放在句尾。

例如：It is important to learn English well.学好英语很重要。

It took me an hour to finish the homework.我花了一个小时完成作业。

三、it用作形式宾语当不定式、动名词或从句作宾语时，为了保持句子结构平衡，避免头重脚轻，常用it作形式宾语，代替不定式、动名词或从句，而把真正的宾语放在句尾。

例如：I think it is important to learn English well.我认为学好英语很重要。

He found it hard to learn English well.他发现学好英语很难。

四、it用于强调句型中强调句型是英语中一个重要的句型，用于突出强调某个成分，特别是主语、宾语和状语等。

在强调句型中，it没有实际意义，只是起到引导作用。

例如：It is I who am the best student in my class.我是班里最好的学生。

it作形式主语和形式宾语用法

it作形式主语和形式宾语用法2009-09-21 09:58:41| 分类：study | 标签：|字号大中小订阅一、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 ...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：①It + 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。

)②It + be +名词词组+ doing / that ….e.g. It is no good telling lies.(撒谎没好处。

)It is a pity that you didn’t go to see the film yesterda y.(你昨天没看成那部电影真遗憾。

It常用句型大盘点

It常用句型大盘点“It” 用法及其句型和固定搭配，是英语语法的重点、难点，又是近几年考试的热点，因此在复习中应给予足够的重视。

现将it用法归纳如下：1. It is + 被强调部分+ that ...【说明】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。

强调的主语如果是人，that可以换成who。

如果把这种句型结构It is / was... that /who... 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。

【举例】It was I who / that met Jim in the street.(强调主语)It was in the street that I met Jim. (强调状语)It was Jim who / that I met in the street. (强调宾语)It is a chief engineer that he becomes now. 他现在担任的是总工程师（强调表语）2. It is not until + 被强调部分+ that ...【说明】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。

【举例】It was not until I got home that my mother went to bed.= M y mother didn’t go to bed until I got home.=Not until I got home did my mother go to bed.3. It’s no use / good doing sth. 做某事没有用。

【举例】I t’s no use/good crying over spilt milk.= Crying over spilt milk is no use / good.4. It’s a waste of time doing sth. 浪费时间做某事。

高考英语It句型和强调倒装句式讲解

高考英语It句型和强调倒装句式讲解一、复习思路这三种句式主要在翻译题中考查；每一种句式都是先讲解知识点然后辅以练习，练习难度分为三个层次。

二、复习要点1. 知识点1：It句型"It" 用法及其句型和固定搭配，是高中英语语法的重点、难点，又是近几年高考的热点，因此应给予充分的重视。

That Sunkong develops fast is well-known to us.______________________________________________________.It作形式主语的概念：当不定式（短语），动名词（短语）或从句在句子中作主语时，为保持平衡，避免句式结构的混乱，常用it 作形式主语，而将真正的主语放在句尾。

It 作形式主语的常用句型:①It + be + 形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, quite clear, unusual, etc.) + that从句。

如：It is certain that she will do well in her exam.It is probable that he told her everything.②It + be + 名词词组(a fact, good news, no wonder, an honor, a good thing, a pity, no surprise, etc.) + that从句。

如：It's a pity that we can't go.It's no surprise that our team should have won the game.③It + be + 过去分词(said, reported, thought, expected, decided, announced, arranged, etc.) + that从句。

it用法

It用法“It” 用法是英语语法的重点、难点，又是考试的热点，因此应给予足够重视。

现将it用法归纳如下：一、It用作实词，表达以下概念：1. 指代时间、天气、距离、环境等自然现象；It is 8 o’clock now. It is a lovely day, isn’t it? It is very noisy here.2. 替代前文提到的事物，强调同一事物（注意one/that/it表替代时的区别）；I lost my pen and I couldn’t find it.3. 指代一位性别不明的小孩或未知的人；The woman had a lovley baby. It was really lovely.4. 指代未指明但谈话双方都知道的那件事。

How do you deal with it?二、It作形式主语It可以用来替代作主语的从句、动词不定式、动名词，以避免英语中经常出现的头重脚轻的问题，而把真正作主语的从句、动词不定式、动名词置于句末。

It is no use/no good/useless quarreling with him on this matter.It is a waste of time talking with him so much.It is impossible for him to finish the job before dawn./It is impolite of you to ignore your teacher.It made his parents desperate that he was addicted to drugs.三、It 作形式宾语It可以用来替代作宾语的从句、动词不定式、动名词，以避免英语中经常出现的头重脚轻的问题，而把真正作宾语的从句、动词不定式、动名词置于句末。

It 作形式宾语的常见动词： think, believe, suppose, consider, feel, make, keep。

It句型及倒装句

“It”用法及其句型和固定搭配一、It用作实词表达以下概念:指代前文提到的事物，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1. 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……(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 …(4) 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） (5) It is v-ed that …(should)…(verb=demand, request, require, order, suggest, advise, recommend 例 It is suggested that they should beg in with the third question.三、It作主语的句型1. It's (just)(un)like sb. to do某人的风格2. It's (about/high) time that… should /v-ed…3. It's the x-th time (that) … have v-ed…4. It is/has been… since …continuous v-ed(延续性动词) 某动作已有多长时间不发生了5. It was(not)…before…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。

“It”作形式主语和形式宾语用法详解

新希望英语语法精讲------“It”作形式主语和形式宾语“It”作形式主语和形式宾语的用法详解It作形式主语和形式宾语用法，是英语学习的主要语法项目之一。

无论是单项选择，还是完行填空，it 用法始终是反复考查的重、热点之一。

现将it在特殊句型中作形式主语和形式宾语用法，进行如下归纳分析，以供学习参考。

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 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。

)②It + be +名词词组+ doing / that ….e.g. It is no good telling lies. (撒谎没好处。

)It is a pity that you didn’t go to see the film yesterday. (你昨天没看成那部电影真遗憾。

高考英语语法总结：it的用法(一)

2014高考英语语法总结：It的用法（一）It用法及其句型和固定搭配，是高中英语语法的重点、难点，又是高考英语的热点，因此应给予充分的重视，现将it用法归纳如下：一、作人称代词1、it代替前面（或后面）的单数名词或分句等所表示的事物。

e.g. You cannot eat your cake but have it.（it代替前面的cake）Although we cannot see it, there is air all around us. （it代替后面的air）They say he has left town, but I don’t believe it. （it代替前面Theytown分句中的情况）2、代替有生命但不能或不必分阴阳性的东西（包括婴儿）。

e.g. Yesterday we saw a big tree. It was fully twenty metres high. （it代替前面的tree）The baby cried because it was hungry. （it代替前面的baby）3、在某些习惯说法中，可以代替人。

e.g. -- Someone is knocking at the door, Peter. -- Who is it? -- It’s me.-- Who are singing? -- It is the children.-- The light is still on in the lab. It must be the third-year students doing the experiment.4、it与one的区别：这两个词都可以代表前面说过的名词，但it用于同名同物的场合；one则用于同名异物的场合。

e.g. -- Do you still have the bicycle? -- No, I have sold it.-- Is this knife yours? -- No. It is Xiao Zhang’s. Mine is the one on the desk.5、it与that的区别：两词都可代替某一特定名词，但that指同一类，并非同一个。

it用法总结(高考)

2) It is not until + 被强调的部分+ that…
该句型也是强调句型，主要用于强调时间状语，译成“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.
一、it 作人称代词的用法
• 1. 指事物 • 作为人称代词，it 可以除人以外的一切事
物或动物。如： • I dropped my watch and it broke. 我
把手表掉在地上摔坏了。 • It’s hard work, but I enjoy it. 工作很
辛苦，可是我乐意干。 • “Where is the dog?” “It’s in the
• See to it that you’re not late again. 注意千万
不要再迟到。
• Look to it that this doesn’t happen again. 注意
不要再发生这种事。
• You may rely on it that he’ll come to meet you.
=The letter took me an hour (to write). =I took an hour to write the letter.
(5) It is up to sb to do sth. 该由某人做某事 • It’s up to you to to make the choice. 得由你来
五、用于强调句型中
1) It + be+被强调部分 + that/who (a person) 从句 I met Tom in the park yesterday. 1) It was I who met Tom in the park yesterday. 2) It was Tom who I met in the park yesterday. 3) It was in the park that I met Tom yesterday. 4) It was yesterday that I met Tom in the park.

It的用法(超全)

---------------------------------------------------------------最新资料推荐------------------------------------------------------It的用法(超全)用法及其句型和固定搭配，是英语语法的重点、难点，又是近几年考试的热点，因此在复习中应给予足够的重视。

句型归纳：1． It is ＋adj．(＋for sb．／sth．) ＋ to do sth．用于此句型的形容词有：easy， hard， difficult，possible， important， impossible，necessary， good， bad， exciting， interesting， surprising 等。

如：It is necessary to change your job． It was very hard for them to walk such a long way in the snow． 2．It is ＋n．(＋for sb．／sth．) ＋ to do sth．用于此句型的名词有：pity, shame, pleasure, ones duty, ones job, fun, joy, good manners, bad manners 等。

如：It is a pity for you to have missed such a wonderful play． It is bad manners for the young to take up the seats for the old． 3．It is ＋adj．＋of sb．＋to do sth．此句型中的形容词主要描述某人的品德、特征。

能用于该句型的形容词有：1 / 13kind, nice, wise, silly, polite, impolite, friendly, foolish, clever 等。

It”用法及其句型和固定搭配讲解

高中英语语法权威解析目录:第01章名词性从句第02章“It”用法及其句型和固定搭配讲解第03章高中英语语法中的省略现象第04章主谓一致第05章动词不定式第06章倒装结构第07章定语从句第08章被动语态第09章祈使句第10章感叹句第11章疑问句第12章名词第一章名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses）。

名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。

一．主语从句主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。

1. It 作形式主语和it引导强调句的比较It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。

而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。

被强调部分指人时也可用who/whom。

例如：a) It is a pity that you didn‟t go to see the film. 你不去看那场电影真可惜。

b) It doesn‟t interest me whether you succeed or not.我对你成功与否不感兴趣。

c) It is in the morning that the murder took place.谋杀案是在早上发生的。

（强调句型）d) It is John that broke the window.是John打碎的窗户。

（强调句型）2. 用it 作形式主语的结构(1) It is ＋名词＋从句It is a fact that … 事实是…It is an honor that …非常荣幸It is common knowledge that …是常识(2) It is ＋形容词＋从句It is natural that… 很自然…It is strange that… 奇怪的是…(3) It is ＋不及物动词＋从句It seems that… 似乎…It happened that… 碰巧…It appears that… 似乎…(4) It ＋过去分词＋从句It is reported that… 据报道…It has been proved that… 已证实…It is said that… 据说…3. 主语从句不可位于句首的五种情况：（1）if 引导的主语从句不可居于复合句句首。