高考语法复习题--it的用法及练习

高三一轮语法回顾与训练---It的用法和there be结构1.代词it常用来指代前文提到的事或物，还用在各种特殊句型中。

there be表示“存在”，可用在不同时态和句型中。

2.考点归纳一、it用法1. it用作形式主语（1）It + be + adj. + 主语从句It is clear（obvious / true / possible / certain…）+ that / whether…从句…It is essential（important / necessary / right / strange / natural…）+ that从句…（should + 动词原形）It is uncertain whether he can come to Jenny’s birthday party or not.It is important that we should learn English well.（2）It + be + 名词词组+ 主语从句It’s a pity that you missed the exciting football match.（3）It + 不及物动词（seem / appear / happen / turn out…等）+ 主语从句（看来/ 似乎/ 碰巧/ 证明是）It seemed that he didn’t tell the truth.It happened that I was out when he called.（4）It’s + adj. + for / of + sb. + to do sth特别注意：如何选择介词for 或of？如果该句型中的形容词是用来说明“某人”的性格或品质（如kind, good, nice, wise, stupid, clever, foolish, silly, impolite, selfish, considerate ...）时，介词用of（“某人”和这些形容词可以构成主系表结构），其它情况介词用for。

第二章“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 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(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.)(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) 某动作已有多长时间不发生了例It's 10 years that 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。

2019最新高考英语语法要点细讲精练14—it的用法（详解）注意事项：认真阅读理解，结合历年的真题，总结经验，查找不足！重在审题，多思考，多理解！无论是单选、多选还是论述题，最重要的就是看清题意。

在论述题中，问题大多具有委婉性，尤其是历年真题部分，在给考生较大发挥空间的同时也大大增加了考试难度。

考生要认真阅读题目中提供的有限材料，明确考察要点，最大限度的挖掘材料中的有效信息，建议考生答题时用笔将重点勾画出来，方便反复细读。

只有经过仔细推敲，揣摩命题老师的意图，积极联想知识点，分析答题角度，才能够将考点锁定，明确题意。

【考纲解读】根据近向几年高考试题来看，it一直是考查的重点，尤其是it, that 和one不同的指代功能。

试题注重情景的设置，需要利用特点语言环境中上下文的联系，正确分析结构，理解句意是做此类题目的关键。

1.it/that/one用法区别〔it主要指代前面提到的同一物；one用来指代前面出现的单数名词，相当于a/an+单数名词，表泛指概念，往往是同类而同一物；that用来替代前面出现的特指的单数可数名词或特指的不可数名词，相当于the＋单数/不可数名词〕2.it用在某些动词后,如:enjoy,like,,dislike,resent,hate,don’tmind,befondof,feellike,seeto之后,即这些动词后面的宾语从句前要加it代替其后的从句3.用于强调句或固定句型〔itis/was…when/since/before…〕中.4.作形式宾语或形式主语〔主要代替ving,todo或从句〕5.考查it构成的习语，it也常表示抽象的情况,属于虚指.如:Takeiteasy.【知识要点】It的用法〔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.Youcannoteatyourcakebuthaveit.〔it代替前面的cake〕Althoughwecannotseeit,thereisairallaroundus.〔it代替后面的air〕Theysayhehaslefttown,butIdon’tbelieveit.〔it代替前面They…town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〕。

2020备考高考英语语法-- 强调句一．强调句的基本用法：强调句的基本形式：It +is/was +被强调的部分+that/ who +原句被强调的部分可以强调主语、宾语、时间状语、原因状语、地点状语和方式状语It was only when the car pulled up in front of the house____ we saw Lily in the passenger seat. (2018年天津)1.强调句与since、before 和when引导句型的区别1).It was/is+ (时刻，或时间点）+ when …..当某事发生时，是几点钟或哪一年如：It was 1997 when Hongkong returned to China.It was five o'clock when we arrived at the small mountain village.It was midnight when he got home.对比：It was at five o'clock ______ we arrived at the small mountain village.( that)2).It+ is/ was+…+that…多用于强调3).It was+一段时间+ before sb did sth. 过了一段时间之后，才….It will be +一段时间before sb do sth. 要过一段时间之后，才…..It won’t be long before sb do sth .不久之后就...It wasn’t long before sb did sth. 不久之后就…如：It was two years before Macao returned to China.It won’t be long before you see him again. 没过多久你就会再见到他。

高考语法复习：特殊句式-强调句讲解及提升练习[要点解读]1．陈述句式：It is/was...that/who...(强调人时可用that或who，强调物时只用that)一般疑问句：Is/Was ＋it＋...that/who...?特殊疑问句：疑问词＋is/was＋it＋that...?It was when I got back to my apartment that I first came across my new neighbors.正是当我回到公寓的时候，我第一次遇到我的新邻居们。

Was it on a lonely island that he was saved one month after the boat went down?他是在船沉了一个月之后在一个荒岛上被救的吗？2．“not...until...”的强调句：It is/was not until...that...(注意时态)It was not until I came here that I realized this place was famous for not only its beauty but also its weather.直到我来到这儿，我才知道这个地方出名不仅因为它的美，还因为它的天气。

巩固提升一、单项选择1．--- Was it by cutting down staff _ _she saved the firm?----- No, it was by improving work efficiency.A．when B．what C．how D．that2．It was the principles I learned from my reading _____ enabled me to get bigger and better jobs. A．that B．which C．what D．who3．It was ______ first discovered and published T.S. Eliot’s famous poem The Waste Land. A．them who B．they who C．them that D．they whose4．I think it is always the people who have the same culture _____ can share their feelings. A．which B．what C．as D．that5．Top students are not merely those who sit up late and study. It is efficiency ______ matters. A．that B．how C．what D．which6．It was not until the entire river was covered with rotten fish which died from acid rain that ____ how serious the pollution was.A．did the villagers realize B．made the villagers realizeC．the villagers realized D．realized the villagers.7．Of all the jobs I’ve had, ________ was my experience at Pennsylvania Railway Station________ impressed me most.A．it: where B．what; which C．it; that D．that; which 8．There is no doubt that it is around the family and the home ______all the greatest virtues of human society are created，strengthened，and maintained.A．that B．whereC．which D．with9．________ has forced people, especially women, to endure a lot of pain and suffering to make themselves more beautiful?A．It is what B．It is what thatC．What is it that D．What it is that10．It is _______ he said _______ is very important to me.A．what; that B．that; that C．all that; what D．which; that11．It was through her small but very powerful words _______ she said everything that needed to be said, and it truly changed my life.A．which B．that C．in which D．when12．It is only when people live on à very limited diet_________ it is necessary to make a special effort to supply the missing vitamins.A．so B．that C．since D．until13．John’s success has nothing to do with good luck. It is years of hard work __________ has made him what he is today.A．that B．whatC．which D．when14．It was because it rained yesterday we didn’t go to the park.A．whether B．thatC．what D．how15．It was in the Lake District _______ the poet William Wordsworth spent much of his lifetime. A．how B．that C．which D．where16．It was his nervousness in the interview _____ probably lost him the job.A．which B．since C．what D．that17．It is the quality of the food rather than the quantity ________ matters.A．that B．which C．what D．how18．It was not what Tom said but what he wrote in the letter ______ touched his mother. A．what B．whichC．that D．who19．It was with great joy _______ Tom received the news that his lost son had been found．A．because B．whichC．since D．that20．It was the culture, rather than the language, ________ made it hard for him to adapt to the new environment abroad.A．where B．whyC．that D．what21．—He found a baby in his car when he came back from the supermarket. And ___ was crying for some milk.—When was _____?—_____ was in 2000 when he was still in college.A．it; that; This B．he; this; It C．she; it; This D．it; that; It22．It was the President himself______ opened the door．A．who B．when C．which D．where23．Could it be in the public phone box ______ you made me the call yesterday ______ you lost your IP card?A．that; how B．which; that C．where; that D．when; how24．-----Who ______ it be that hasn’t handed it in yesterday?------It _______ be Bob. He handed it in yesterday.A．can; mustn’t B．must; can C．can; can’t D．may; mustn’t 25．It was not until she collected enough material_______to create her new novel.A．did she begin B．when she beganC．that she began D．that did she begin答案：1．D2．A3．B4．D5．A6．C7．C8．A9．C10．A11．B12．B13．A14．B15．B16．D 17．A18．C19．D20．C21．D22．A23．C24．C25．C二、汉译英1.他每次进城都给女儿带礼物。

高三语法复习之十一-------- it, as, with编号：No.11 编制人：审核人______________It 的用法1. 指代时间、距离、自然现象等，如：It is half past two now. (指时间)It is 6 miles to the nearest hospital. (指距离)It was very cold in the room. (指温度)----A lovely day, isn’t it? （指天气）2. 指代前面提到过的事物、群体、想法、性别不明或被认为不重要的人或动物、未指明但谈话双方都明白的事情或情况。

如：There is only one Gone With The Wind in the bookshop, so I have to buy it. 指代前面提到过的事物----Who is knocking at the door? ---- It is me. （性别不明）---- I have broken a plate. ----It doesn’t matter. （前面所提到过的事情）If I can help it, I don’t like working late into the night. (未指明但谈话双方都明白的事情)3. 可以用作形式主语或形式宾语，而把真正的主语或宾语放在后面，真正的主语或宾语往往由从句、动名词、不定式充当。

如：He found it not easy to learn a foreign language well.It felt funny watching myself on TV.It worries me the way he keeps changing his mind.It is said that all of them have gone to the cinema.4. 用在不能直接跟宾语从句的动词，尤其是表示好恶的动词后，如：enjoy, like, love, dislike, hate, don’t mind, be fond of, feel like, see to,即这些动词后面的宾语从句前要加it。

高中英语语法高考二轮复习it考点讲义【精讲版】it用作形式主语和形式宾语的用法归纳总结一、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厄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il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 il 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。

高二下语法复习巩‎固练习八形容词和副‎词1、形容词、副词的作用‎与位置形容词是用‎来修饰名词‎的，常被放在名‎词前作定语‎，或放在系动‎词后面作表‎语。

副词则用来‎修饰形容词‎、动词，其他副词或‎者句子，一般位于形‎容词之前，动词之后或‎句子之首。

以下属几种‎特殊情况，须牢记；（1）形容词短语‎作定语，定语后置。

a langu‎a ge diffi‎c ult to maste‎r, a leani‎n g tower‎about‎180 feet high（2）表语形容词‎（a frai‎d、alike‎、alone‎、aslee‎p、awake‎、alive‎等）作定语，定语后置。

如a man alive‎。

有些表身体‎健康状况的‎形容词如w‎el l、faint‎、ill只作‎表语。

sick既‎可作表语又‎可作定语，ill如作‎定语意为“bad”。

（3）用作定语，修饰由不定‎代词one‎、no、any、some和‎e very‎构成的复合‎词如any‎t hing‎、somet‎h i ng等‎时，通常后置。

如：I have somet‎h ing impor‎t ant to tell you.（4）else常‎用作疑问代‎词和不定代‎词的后置定‎语。

who/where‎/what else(5) 某些形容词‎加上定冠词‎可以泛指一‎类人，与谓语动词‎的复数连接‎。

如：the dead，the livin‎g，the rich，the poor，the blind‎，the hungr‎yThe poor are losin‎g hope.(6) 有关国家和‎民族的形容‎词加上定冠‎词指这个民‎族的整体，与动词的复‎数连用。

如：the Briti‎sh，the Engli‎s h，the Frenc‎h，the Chine‎se.The Engli‎s h have wonde‎r ful sense‎of humor‎.（7）以-ly结尾的‎词性辨析。

⾼中英语语法知识复习-It的⽤法讲解及练习60多题It的⽤法It的⽤法在⾼考中也是重现率较⾼的语⾔点，尤其是it⽤于强调句。

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。

1． It was only when I reread his poems recently ___ I began to appreciate their beauty．A．until B．that C．then D．so正确答案：B 此题考查强调句，所以⽤that。

2． I hate ____when people talk with their mouths full．A．it B．that C．these D．them正确答案：A 此题考查it作形式宾语的⽤法，所以选A。

3．(短⽂改错)David and I did not agree and David pointed to a path which he thought it would probably lead to a village．正确答案：去掉it，因为定语从句中已有宾语which。

⼀、要点点拔1．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．2．⽤于表达天⽓、环境、时间、距离、季节等。

例如：1) It’s half an hour’s walk from here to our school．2) It‘s nice and warm here．3) But it's two o'clock now, and it's time for us to go to school．3．⽤作形式主语.it 没有具体意义，⽽只是帮助把真正的主语移⾄句⼦后尾，使句⼦显得平稳⼀些，能借it 给移⾄句⼦后尾的主语有三种：⼀种由不定式表⽰，⼀种由动名词表⽰，⼀种由从句表⽰。

高考英语语法专练-IT用法及系动词50题[附答案及解析]| 文章作者：佚名| 文章来源：网络| 文章录入：henry | 更新时间：2008-7-30 | 字体：小大|1. The boy becam e fatter and fatter each day and ＿＿＿m ade his parents sad.A.whichB.whatC.heD.it2. Som eone is ringing the doorbell. Go and see ＿＿＿＿＿＿.A.who is heB.who he isC.who is itD.who it is3. In fact, ＿＿＿is a hard job for the police to keep order in an important football match.A.thisB.thatC.thereD.it4. Tom’s mother kept telling him that he should work harder, but ＿＿＿didn’t help.A.heB.whichC.sheD.it5. Does＿＿＿matter whether he can finish the job on tim e?A.thisB.thatC.heD.it6. ＿＿＿used to be thought that the earth was square.A.HeB.WhatC.ItD.That7. I took ＿＿＿for granted that he would believe in us.A.thatB.the thingC.itD.this8. He lived in poverty, and he couldn’t help ＿＿＿.A.soB.suchC.itD.that9. We had to be patient because it＿＿＿som e time ＿＿＿we got the full results.A.has been ；sinceB.had been ；untilC.was；afterD.would be ；before10. ＿＿＿＿four years since I joined the arm y.A.There wasB.There isC.It wasD.It is11. ——Have you ever seen a whale alive?——Yes, I’ve seen ＿＿＿.A.thatB.itC.suchD.one12. ＿＿＿＿being March 12th, they planted trees on the hill.A.ThatB.It isC.ItD.This13. ——Was that the new com er who walked by?——＿＿＿＿＿.A.It m ust be thatB.It m ust have beenC.He must beD.This must have been14. Our classroom is very clean. Do you know who＿＿＿cleaned it?A.was it thatB.it was thatC.was it whoD.he was15. It’s the third time ＿＿＿＿＿arrived late this m onth.A.that youB.when youC.that you’veD.when you’ve16. He said, “＿＿＿＿＿a long way to school. ＿＿＿＿＿a long way to go yet before we arrived.”A.It is ；There isB.There is ；It isC.It is ；It isD.There is；There is17. ＿＿＿＿＿＿for the free tickets, I would not have gone to the film s so often.A.If it is notB.Where it notC.Had it not beenD.If they were not18. She finds ＿＿＿＿＿＿boring ＿＿＿＿＿＿at hom e.A.it；stayingB.that；being stayedC.this；to stayD.it；stayed19. —— Few children are as bright as he is, and also, he works very hard. ——It’s no ＿＿＿＿＿that he always gets the first place in any examination.A.questionB.doubtC.problemD.wonder20. Now then, children. It’s high time you ＿＿＿＿＿＿and dressed.A.washedB.should washC.were washedD.are washed21. —— Why did he let you repeat his instruction tim e and time again?——＿＿＿＿＿＿that I remember what was＿＿＿＿＿after he went out.A.To see to it；to be doneB.Making sure；to be doneC.To m ake sure；to doD.Seeing to；done22. ＿＿＿the people have becom e the master of their own country＿＿＿science can really serve the people.A.It is only then；thatB.It was that；whenC.It is only when；thatD.It was when；then23. ＿＿＿＿＿is no difference between A and B.A.ThereB.WhereC.ItD.What24. How long ＿＿＿＿＿to finish your composition?A.will it take youB.will take youC.you will take itD.you will take25. ＿＿＿＿＿is just like him to want to do som ething different from everybody else.A.ItB.ThereC.HeD.Who26. That young Swedish＿＿＿＿＿quite still, except that his lips moved slightly.A.keptB.grewC.gotD.stood27. In late autum n leaves ＿＿＿＿＿brown.A.getB.turnC.stand e28. Little Jim’s speech sounds ＿＿＿＿＿.A.friendlyB.wonderfullyC.pleasantlyD.nicely29. The poor boy ＿＿＿＿＿blind at the age of three.A.turnedB.wentC.becam eD.looked30. As a child, Franc ＿＿＿＿＿.A.was aliveB.grew patienceC.ran wildD.cam e true31. In spring, all the flowers in the garden ＿＿＿＿＿sweet.A.becom eB.tasteC.sm ellD.sound32. She ＿＿＿＿＿like her mother in character.A.feelsB.seemsC.looksD.is33. It ＿＿＿＿＿another fine day tom orrow.A.seem sB.appearsC.promisesD.looks34. His father ＿＿＿＿＿that older than he really is.A.growsB.appearsC.turnsD.becom es35. His girlfriend ＿＿＿＿＿a singer.A.has turnedB.grewC.has becom eD.turned36. Obviou sly, the old soldier’s knowledge of English＿＿＿very weak.A.seem sB.risedC.rem ainedD.looked37. His mother ＿＿＿＿＿teacher.A.becam eB.has turnedC.cam eD.proved38. It sounds ＿＿＿＿＿the singing of rails.A.asB.inC.likeD.as if39. Her tem perature ＿＿＿＿＿＿to be all right.A.seem sB.soundsC.appearsD.looks40. His wish to becom e a driver has ＿＿＿＿＿true.A.realized eC.grownD.turned41. His plan ＿＿＿＿＿to be a perfect one.A.provedB.was provedC.is provingD.proving42. When her mother cam e home yesterday, it was＿＿＿dark.A.runningingC.gettingD.going43. These apples taste ＿＿＿＿＿.A.to be goodB.goodC.to be wellD.well44. —— How about the cloth you bought yesterday?——That’s very beautiful. It ＿＿＿＿＿＿so soft.A.feltB.feelsC.is feelingD.fall45. When his brother telephoned him last night, he＿＿＿＿＿asleep.A.keptB.gotC.fallD.fell46. He looks＿＿＿＿he hadn’t had a good meal for a month.A.thatB.as ifC.whenD.so far47. It ＿＿＿＿＿that he was late for the train.A.loosB.turnsC.getsD.seem s48. What does your brother look ＿＿＿＿＿?A.asB.onC.afterD.like49. She ＿＿＿＿＿＿＿red with anger as soon as she heard the news.A.wentB.stayedC.becam eD.remained50. What a lovely day! I hope it ＿＿＿＿＿fine.A.stayedB.will stayC.will getD.turn参考答案及解析1.D。

语法复习五：强调句、It的用法、省略和插入语语法复习五：强调句、It的用法、省略和插入语一、强调句（一）强调句句型1、陈述句的强调句型：It is/ was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其它部分。

e.g. It waday thaLi Ping.2、一般疑问句的强调句型：同上，只是把is/ was提到it前面。

e.g. Waday thaLi Ping?3、特殊疑问句的强调句型：被强调部分（通常是疑问代词或疑问副词）+ is/ was + it + that/ who + 其它部分？e.g. When and where was it that you were born?4、强调句例句：针对I met Li Ming at the railway staday.句子进行强调。

强调主语：It was I that (who) met Li Ming at the railway stada强调宾语：It was Li Ming that I met at the railway staday.强调地点状语：It was at the railway station thatI met Li Ming yesterday.强调时间状语：It waday that I met Li Ming at the railway sta、注意：构成强调句的it本身没有词义；强调句中的连接词一般只用that, who，即使在强调时间状语和地点状语时也如此，that, who不可省略；强调句中的时态只用两种，一般现在时和一般过去时。

原句谓语动词是一般过去时、过去完成时和过去进行时，用It was … ，其余的时态用It is … 。

（二）not … until … 句型的强调句1、句型为：It is/ was not until + 被强调部分 + that + 其它部分e.g. 普通句：He didn’t go to bed until/ till his wife came ba强调句：It was not until his wife came back that he went to bed.2、注意：此句型只用until，不用till。

It 的用法１．作人称代词John likes playing Pingpong．/ 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)It was twelve o'clock when we arrived there．(when引起时间状语从句）It was at twelve o'clock that we arrived there．（that 引起强调句）3.it，one，that 的区别：作为代词，这三个词的对比使用是高考的热点之一。

手惰市安逸阳光实验学校高考英语二轮专题总复习语法精选代词it用法讲义it 的用法在高考经常被考查，仔细分析一下近几年的高考试题，我们不难发现，it用法主要是围绕其作代词时的用法、其作引导词的用法和其表示强调的用法的考查，本文就此作一归类透视，并提出一些提示，希望能对同学们很好地复习备考it这一用法有所帮助。

考点一、it作代词时的用法1．用作人称代词，代替前文提到的事，例如：The snake is not a warm—blooded animal. It’s a cold blooded one. 蛇不是温血动物，它是冷血动物。

2．用以代替指示代词，例如：---What’s this ? ---- It’s a book. ----这是什么？ ---- 这是一本书。

3．起指示代词的作用，指一个人或事物，例如：----Who’s knocking at the door ? ---- It’s me .---谁在敲门？ ----- 是我。

4．指时间、季节、天气、距离、环境等，例如：It’s very cold outside. Put on more clothes. 外面非常冷，多穿点衣服。

5.替代词“it, one与that”区别和联系it用来指代前面提到的同一个事物或人；one用来指代前面同名异物的名词, 指的是同类中的一个，所以属于泛指，相当于“a/an+名词”。

one只能代替可数名词，其复数形式是ones；that用来指代前面同名异物的名词，指的是同类中的一个，属于特指，相当于“the+名词”。

that既能代替不可数名词，也能代替可数名词，其复数形式是those。

Do you need my pen? No, thanks, I have got one. (= a pen)你要用我的钢笔吗？不，我自己有一支。

The weather in Beijing is colder than that in Shanghai. (= the weather 不可数名词)北京的气候要比上海（的气候）冷得多。