高中英语 it的用法

【导语】"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，⽆忧考整理了“it的⽤法”，欢迎阅读参考！更多相关讯息请关注⽆忧考！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。

高中英语语法—it的用法及练习1、it可指天气、温度、时间、距离等e.g. —It is cold today, isn’t it?2、用作人称代词，代替前文提到过的事物e.g. The dog is not a cold-blooded animals. It doesn’t need to hibernate.3、为避免重复，it可用来代替前面说过的短语或句子e.g. I tried to persuade my father to give up smoking, but found it impossible. (it=to persuade my father to give up smoking)4、代替指示代词this，thate.g. —What’s this?—It’s an album.—Whose new bike is that? —It’s Mary’s.【注】it与that的异同it指同一事物，that指同类但并不是同一事物e.g. I like the climate of Kunming more than that of Beijing. The climate of Kunming is mild, and I like it.5、it作形式主语it在句中可作形式主语，而真正作主语的主语从句需要放在句子的末尾。

主语从句后置常用以下几种结构：1）It is/was + adj. + subject-clause可用于此句型的形容词有：clear, certain, funny, good, impossible, likely, natural, obvious, possible, probable, strange, surprising, true, unusual, wonderful等e.g. It is obvious that going for sports will do a lot of good to your health.2）It + be + adj./n. (for sb./of sb.) + to do sth.该句型中的形容词通常表示事物的特点或特征的，如difficult, hard, easy, impossible, necessary, important 等，此时用for；或表示人的性格特征或特点的，如nice, good, bad, kind, silly, foolish, wise, clever, careless, rude, brave, cruel, careful, grateful等，这时要用of7）一些固定句型It takes sb. some time to do sth.e.g. It will take you two days to get there on foot.It costs sb. some money to do sth.e.g. It costs 1,000 dollars to fly to America.It is/was no use(useless) doing（做什么是没有用处的）e.g. It’s no use arguing with him.It is/was no good doing（做什么是没有好处的）8）以下句型结构中需要用虚拟语气①It is/was important(necessary, strange) that…; It is/was ordered(required, suggested, proposed) that…; It is/was a pity(a shame) that…表示遗憾等感情的句子中，主语从句要用“should+动词原形”，should可以省略。

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。

I.wa.the.tha.(who.cleane.th.classroo.yesterday.I.wa.i.th.stree.tha..me.he.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.no....unti....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...didn’.realiz.sh.wa..famou.fil.sta.unti.sh.too.of.he.dar.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.I.i.importan..necessary.right.strange.natural....tha....由于主句中的形容词不同, tha.后的从句中要用虚拟语气（shoul..动词原形）, shoul.可以省去。

“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。

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。

接下来我们一起来看一看。

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。

高中英语it的用法的归纳总结以下是关于 it 的用法的一些归纳总结:1. 当 it 作为形式主语时，常用动词不定式或名词形式充当主语，其后面通常会加上 for 或 to 引导的短语。

例如：- It"s important to study hard.(努力学习很重要。

)- It"s a beautiful day.(今天天气很好。

)- It"s difficult to imagine a better place to live.(无法想象一个更适合居住的地方。

)2. 当 it 作为形式宾语时，通常用不定式或名词形式充当宾语，并在其后加上 for 或 to 引导的短语。

例如：- I appreciate your help.(感谢你的帮助。

)- It"s a great opportunity for me to learn new skills.(这是一个我学习新技能的好机会。

)- It"s necessary to clean the room.(打扫房间有必要。

)3. 当 it 作为实义主语时，表示某一具体事物或人物。

例如： - It"s a beautiful day, isn"t it?(今天天气很好，是吗？) - It"s yours, isn"t it?(这是你的吗？)4. 当 it 作为强调句的结构时，通常位于句首，其后是句子的主要成分。

例如：- I don"t know who it was that called me yesterday.(我不知道昨天是谁给我打电话。

)- It was yesterday that I visited my grandmother.(昨天我去看望了我奶奶。

)5. 当 it 作为单数名词时，通常指某一类人或物中的一个。

例如：- It"s a police car.(这是一辆警车。

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。

【高中英语】高中英语语法：It的完整用法除了课堂上的学习外，平时的积累与练习也是学生提高成绩的重要途径，本文为大家提供了高中英语语法：it的完整用法，祝大家阅读愉快。

it可用作人称代词、指示代词、先行词及引导词等。

1.人称代词it，就是第三人称单数中性，代表前文已提及过的一件事物。

例如：1)thatvaseisvaluable.it'smorethan200yearsold.那个花瓶很珍贵，它有200多年的历史。

2)iloveswimming.itkeepsmefit.我讨厌游泳，它能够并使我维持身心健康。

当说话者不清楚或无必要知道说话对象的性别时，也可用it来表示。

如：3)it'salovelybaby.isitaboyoragirl?宝宝真可爱，就是男孩还是女孩?it可用来指代团体。

如：it用来替代命令代词this,that.如：5)---what'sthis?---it'sapen.—这是什么?—是一支钢笔。

6)---whosebookisthat?---it'smike's.—那就是谁的书?—就是迈克的。

2.指示代词it，常用以指人。

如：7)goandseewhoitis.回去看一看就是谁。

8)---whoismakingsuchanoise?—是谁发出这样的吵闹声?---itmustbethechildren.—一定就是孩子们。

3.虚义it无指代性，常用作没有具体意义的主语，出现于表示天气、气候、温度、时间、地点、距离等意义的句子中。

如：9)itishalfpastthreenow.现在就是三点半钟。

10)itissixmilestothenearesthospitalfromhere.这里离最近的医院也有六英里。

11)itwasverycold;itsnowedandgrewdark.天气很冷;天下着雪，渐渐地变黑了。

以上就是为大家整理的高中英语语法：it的完备用法，期望同学们写作后会对自己有所协助，预祝大家写作开心。

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。

高中英语it的用法一、代词itA. heB. thatC. itD. theman3. Tom's mother kept telling him that he should work harder, but didn't work.A. heB. whichC. sheD. it4. —How _____ going?— Everything is OK.A. is itB. are theyC. is thatD. arethese5. — He was nearly drowned once.— When was ______ ?— _______ w as in 1998 when he was in middle school.A. that... ItB. this... ThisC. this... ItD. that...ThisKeys:1-5. D C D A A二、引导词it专项练习1. _______ is a fact that Global Warming has influenced human beings' life.A. ThereB. ThisC. ThatD. It2. It is wrong _______ treat your mother like that.A. that you toB. of you toC. for you toD.because you3. Is _______ n ecessary to complete the task before National Day?A. thisB. thatC. itD. he4. Does _____ matter if he can't finish the job on time?A. thisB. thatC. heD. it5. He hasn't had any food for two days. that he is so hungry.A. There is no pointB. There is no needC. It is no wonderD. It is no way6. ______ h e has been fired because of his absence for a long time with no reason.A. It is said thatB. They all said thatC. That is announced thatD. It was reported7. It is no use _____ books without reading.A. to buyB. in buyingC. of buyingD.buying8. _______ h uman beings can live on the moon in the next twenty years.A. There seems impossibleB. This is impossible forC. It is impossible ofD. It seems impossible that9. _______ i n the school regulation that students should wear school uniforms at school.A. What is requiredB. What requiresC. It is requiredD. It requires10. —How do you know him well?— ______that we live in the same neighbourhood.A. It isB. That isC. It is becauseD. Ithappens11. I don't think possible to complete the task without good preparation.A. thisB. thatC. heD. it12. I hate ______ when people talk with their full mouth.A. itB. thatC. theseD. them13. He _______ to do morning exercise in the park.A. took a ruleB. made a ruleC. made it a ruleD. tookit a rule14. I would appreciate _____ you would turn off the TV set.A. thatB. it ifC. these ifD. itthat15. I think _____ hard for you ______ t he task on your own.A. it is... doB. this... to doC. that is... doingD. it...to do16. Don't ______ for granted that he will keep his promise.A. take thatB. take itC. make thatD. makeit17. He soon ______ w hy he had done it.A. spoke clearlyB. made it clearC. told clearD. saidit clear18. Do you think _____ no use ______ another apology to him?A. it... to makeB. it is... makeC. it... makingD. that...of making19. We should regard _____ as a social duty to help these poor and homeless people.A. ourselvesB. theseC. itD. us20. I found ______to watch the football match on TV.A. it relaxingB. that is relaxingC. it relaxedD. thatis relaxedKeys:1-5 DBCDC 6-10 ADD CD11-15 DACBD 16-20 BBCCA三、it在强调结构中专项练习1.It was who telephoned me yesterday.A．him B．his C．himself D．he2. was a handbag that John gave Mary at Christmas.A．It B．This C．That D．Such3.Was the room the famous writer had ever lived in?A．that, it B．it , that C．it , where D．that, which 4.Why is it everyone thinks he’s a thief?A．because B．as C．when D．that5. is known to us Mary dances best.A．She, ×B．It, that C．It, she D．She, who Keys:1-5 AABDBKeys:1-5 DCDDA练习题：单项选择1. _______ that I was watching TV when he came to see me.A. It happenedB. What happenedC. That happenedD. It was happened2. The chairman thought necessary to invite Professor Smith to speak at the meeting.A. thatB. itC. thisD. him3. The Foreign Minister said, " ____ our hope that the two sides will work towards peace."A. This isB. There isC. That isD. Itis4. ______ is reported in the newspaper that the terrible flood has caused a loss of 10 million yuan.A. ItB. ThisC. ThatD. As5. It's up to you whether we should go to the art exhibition right now.A. decidingB. to decideC. of decidingD.decide6. Was ________ that I saw last night at the corner?A. it youB. not youC. youD. thatyourself7. It is about two months James leaves school. He is going to be a lawyer.A. whenB. beforeC. sinceD. that8. ______ turn is ______ to clean the blackboard?A. Which... itB. Whose... itC. Which... thatD.Whose. .. that9. The seriously injured man has stopped breathing. will be no possibility ofmaking him come to life.A. ItB. ThereC. ThatD. This10. Space exploration has been made with the development of modern science.A. it possibleB. it wasC. that being possibleD.possible11. To improve my spoken English, I make to recite a passage of English every day.A. a ruleB. it a ruleC. a rule thatD. arule it is12. He moved to a new flat because is only five minutes' walk from the new flat to his office.A. itB. thisC. thatD.there13. It was _______ several years I had an opportunity of seeing the bird again.A. for... beforeB. not for... thatC. for... whenD. notfor... then14. It was with the greatest difficulty the boy gathered the strength to rise.A. with whichB. thatC. whichD.what15. It is of great help Radio English on Sunday. It is well received.A. to pick upB. of picking upC. to pickD.picking upKeys: 1-5 ABDAB 6-10 ABDBD 11-15 BABBA基础题：一．单项选择：1. It is high time that our child to do some homework.A. learnedB. learnC. will learnD.would learn2. It is essential that every child the same educational opportunity.A. hasB. could haveC. haveD. had3. It was going to be some time he saw his parents again.A. sinceB. untilC. whenD.before4. _______ the 1500's_______ the first European explored the coast of California.A. It is not until... thenB. It was until... thatC. It's not until... whenD. It was not until... that5. I just wonder ________ that made them so depressed.A. why it didB. what they didC. how it wasD.what it was6. It was eight o'clock I got to the school this morning, made our teacher very angry.A. when... thatB. that... thatC. that... whenD.when... which7. ______ , they all went to the lake to swim.A. It was a hot dayB. Being a hot dayC. It being hotD. For it was a hot day8. I don't mind her criticizing me, but is how she does that I object to.A. itB. thatC. thisD.which9. — ______ seems to be something wrong with the machine.—Yes, _____ got a lot of noise.A. It... it'sB. There... it'sC. It... there'sD.There... there's10. ______ a certain doubt among the workers as to the necessity of the work.A. There areB. There isC. They areD. Itis11. Joan had often heard said that Marley had no money.A. oneB. onceC. itD. her12. When you go outing with your sisters, you must see to that they are safe.A. everythingB. itC. thatD.yourself13. He said, " a long way to school. a long way to go yet before we arrive."A. It is... There isB. There is... It isC. There is... There isD. It is... It is14. —Is it my age the boss minds?—I'm afraid not. He will consider necessary to have an experiencedassistant.A. which... itB. that... itC. which... thatD.that... that15. ______ easy to do the repair. All you need is a hammer and some nails.A. You areB. That isC. There isD. ItisKeys:1-5 ACDDD 6-10 DCABB 11-15 CBABD提升题：一、翻译。

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的用法的归纳总结1. it 作为人称代词在句子中代替一个名词或代词，作为主语、宾语、表语或形式宾语等。

例句：It is raining heavily.The book is interesting. I love it.I find it difficult to understand.2. it 作为代词形式的宾语用在像 think, believe, find, consider, call 等动词后面，作为宾语，这些动词有时常被称为“感觉类动词”。

例句：I find it hard to believe that he would do such a thing.They called it a day and went back home.I consider it a waste of time to keep trying.3. it 作为形式宾语用在像 make, find, see, hear, feel 等动词后面，表示动作的对象。

例句：They made it clear that they would not accept the offer.I find it interesting to learn new things.I saw it with my own eyes.4. it 作为虚拟主语或虚拟宾语用在像 suggest, insist, demand, prefer 等动词后面，表示虚拟语气。

例句：The boss suggested that it would be better to start the project next month.She insisted that it was her right to make the decision.I demand that it be done as soon as possible.5. it 作为强调的主语或宾语用在像 be, have 等动词后面，表示强调。

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。