高中英语语法知识之It的用法总结
高考英语复习 It的用法讲解
It 的用法一链接高考二主要内容1. 作人称代词或非人称代词2. 指无生命的东西或不详的性别3. 作形式主语4. 作形式宾语5. 用于强调句型中6. 用于几种特殊句式中三练一练一链接高考●主要形式：语法填空、写作等●考点：1. 作人称代词或非人称代词2. 指无生命的东西或不详的性别3. 作形式主语4. 作形式宾语5. 用于强调句型中（时态问题）6. 用于几种特殊句式中（特殊句式用于写作的积累）二·主要内容“It”的用法极其广泛,既可以作人称代词,也可以作非人称代词,表示时间、距离、气候等；既可以充当形式主语和形式宾语,也可以用于强调句结构中;它还常常用在某些动词或特殊词类之后,构成习惯用语。
下面就其使用的重点及难点,分门别类地加以总结。
1. 作人称代词,可以用来代替人、物或事；亦作非人称代词，表示时间、天气、季节、距离等。
It i s r aining c ats a nd d ogs. 雨下得很大。
It is a long way to the college. 大学距这儿很远。
It is eight o’clock sharp now. 现在是8点整。
2. 指无生命的东西，性别不详或性别无关紧要时，可用“It”来指动物，幼童等。
The baby cried because it was hungry。
小宝贝因为饿而哭了。
3. 作形式主语英语中不定式、动名词、主语从句在作主语时，主语往往显得很长，使整个句子看上去有点头重脚轻，这时就需要借助“It”作形式上的主语，而把整个句子的主语移到句子后边去，使句子看上去平稳一些。
It is difficult to study and work at the same time.一边工作一边学习很难。
It is very clear that the elephant's l eg is round a nd tall like a tree.大象的腿跟树干一样圆而高，这点显而易见。
英语语法：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。
英语it用法归纳总结
英语it用法归纳总结t 既是代词又是引词。
作代词时，它可做人称代词、指示代词、非人称代词，用于前指、非确指或习语中。
作引词时，它本身无实义，只起先行引导的作用。
可作形式主语(it is + adj. + for/of sb. to do sth.)或形式宾语(it + adj. + to do sth.)，真实的主语或宾语是不定式、动名词或名词从句，它们则放在后面。
It 也用于强调句结构。
如想强调某个词或部分，可用it is (was) + 强调部分(主语、宾语或状语) + that(who)…的强调结构。
本章要求了解代词it 和引词it 的各种用法，重点掌握it 用于前指或后指;引导词it 用于强调结构。
下面请参考小编整理的使用方法。
1、人称代词ITIT一般指物不指人,但可指小孩、婴儿和团体等.IT用于成人,有轻蔑的含义.For example: Would you like to marry Malcom? Fancy being owned by that! Fancy seeing it every day!2、指示代词IT作为指示代词时,IT可以指人.For example: Who is it?(是谁呀?)3、非人称代词IT(1)指时间For example: I glanced at my watch. It was earlier than I thought.(2)指距离For example:How far is it from your office to the bank?It was a long journey to that part of the country.(3)指天气等自然现象For example:Now it is clearing up, and a sparrow is beginning to chirp.It’s damp and cold. I thingk it’s going to rain.4、IT用于前指或后指(1)前指For example:---They lost the game.---Yes, so I hear. Isn’t it a shame?(2)\x09后指For example:It’s seems so full of comfort and of strength, the night.Though no one knew it, it was the last time he would be present at the bank.注：代词it指代if或when等引导的状语从句时,既可前指,也可后指.5、非确指的IT有时,it所指代的是什么,要看上下文来确定.这种IT即所谓的非确指的it(Unspecified it).For example:1.How’s it going with you? (你近况如何?)2.Does it itch much? (很痒痒吗?)3.Where does it hurt? (哪儿痛?)4.Now you are in for it. (你现在可倒霉了!)5.It says in the Bible: Thou shalt not steal. (圣经上说:不许偷窃.)6.Hand it all, we can’t wait all day for him. (见鬼!我们不能整天等他呀.)7.We had a nice time of it. (我们玩得很好.)8.There is nothing else for it but to stand. (没有办法,只好忍受.)9.You never had it so good. (日子过得从来没有这样好.)10.Take it easy. (不要紧张.)。
it的七种用法
it的七种用法1.指代特定的事物或物体："我正在使用这台电脑，它非常好用。
"拓展："it"也可以指代不确定的事物或物体，特别是当我们无法或不想具体描述时。
例如："我听到了什么声音，但我不知道是什么，我觉得有点可怕。
"2.指代动物，尤其是不知道其性别或不确定其性别时： "我看到一只猫，它在树上爬来爬去。
"拓展："it"也可以用于指代婴儿或不确定性别的人。
3.指代强调上文所提到的事物或观点： "我买了一辆新车，我花了很多时间挑选，但它真的很值得。
"拓展：这种用法可以强调前面提到的具体事物或主题，并给予它更多的关注或认可。
4.被用作形式主语： "It's important to exercise regularly."拓展：在某些句子中，"it"可以用作形式主语，代表主语部分的内容，尤其是当真正的主语是以后出现时。
5.引导强调句： "It was John who broke the vase."拓展：在强调句中，"it"被用作形式主语，而真正的主语将被放置在句子的后部，以便强调。
6.用于指示时间、天气和环境条件： "It's raining outside."拓展："it"在描述天气、时间或条件时，常用于英语中，例如："It's getting late." "It's hot today."7.在某些习语中，表示状态或情感： "I'm over it." （我已经度过了这个困境）拓展：在某些习语或俚语中，"it"用于表示情感、状态或体验，并在一定程度上代表所描述的特定情况。
高中英语语法总结--强调句、It的用法、省略和插入语
高中英语语法总结——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 was yesterday that he met Li 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. Was it yesterday that he met Li 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 station yesterday.句子进行强调。
强调主语：It was I that (who) met Li Ming at the railway station yesterday.强调宾语：It was Li Ming that I met at the railway station yesterday.强调地点状语：It was at the railway station that I met Li Ming yesterday.强调时间状语：It was yesterday that I met Li Ming at the railway station.5、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 …。
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。
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。
（完整版）It的用法总结
（完整版）It的用法总结It的用法总结在英语中,it有许多不同的用法,它既可以用作代词(如人称代词、非人称代词)，也可以用作引导词（作形式主语或形式宾语），还可以用来构成强调句型。
.it用作代词(1) 用作人称代词在句子中作主语或宾语；指前面已经提到过的事物、动物或人，且it指特定的事物；如果指前文中提到的事物中的任何一个，用one。
one可以与any, each, every, not等连用，但one 不可代替不可数名词。
—where’s your car?—it’s in the garage. 你的汽车在哪儿呢？在车库里。
(指代物品your car)did you hit it? 你打中了吗？ (指代事件)the baby cried when it was hungry.这婴儿饿时就哭。
（指代婴儿，尤指性别不详或无所谓时）—who is that?—it’s me. 是谁？我。
(指一定情景中所确定的人或事物，此时相当于指示代词，代指this和that,有时也指人)—what’s this?—it’s a box. 这是什么？一只箱子。
(2) 作非人称代词表示天气、日期、时间、温度、距离、价值、路程、度量、自然现象与环境等。
也可模糊地指一般情形或上文的部分或整个意思。
译成汉语时，it通常不一定译出来。
it’s a long time since they left. 他们走后很久了。
it’s two miles to the beach.离海滨有两英里远。
that’s just it—i can’t work when you’re making so much noise.原因就在这里——你弄出这么大的声音，我工作不了。
另外，需要注意两点：（1）“it’s time…”后面可以接不定式和介词短语表示“是做……的时候了”。
如：it’s time for supper. it’s time to have supper.(2) “it’s time…”后面还可以接一个从句，但是从句中的谓语动词一定要用过去式即虚拟语气，如：it’s time we had lunch.是我们吃饭的时候了。
高考英语语法复习知识It用法
高考英语语法复习知识It用法一、概述小小的it在英语中却扮演着非常重要的角色，它使语言更加生动流畅。
本章将it法分为指代性用法和非指代性用法，对于指代性用法从人称代词和指示代词两方面进行了详尽阐述，将非指代性用法的it分为“虚义”it、“先行”it和“分裂句引导词”it分别予以阐述。
将it用法看作一种分析问题的方法，在具体的语言环境中要能准确判断it的相应用法。
二、分类及用法总的来说，根据it在运用中是否具有指代性，可将it用法分为两大类：一、指代性it，二、非指代性it。
1、指代性it包括：人称代词it、指示代词it。
（1）人称代词代词it一般指物不指人。
如：You shouldn’t hunt the deer and kill it.The cupboard is used to put files on and it is made of steel.但it可指代不知性别的婴儿和小孩。
如：What is it? A boy or girl?His sister gives birth to baby, it is very lovely.it表示鄙视、轻蔑的含义时，也可指人。
如：What a bad and mean man it is.在电话用语中要用人称代词it。
如：Who is it speaking? （而不说who are you speaking?）（2）指示代词①it作为指示代词可以指人，尤其指不知名的人。
如：—Who is knocking at the door?—It is Tom.②it可用于指代名词（或名词短语）和整个句子，既可指代前面已提到的事物或事情，也可指代后面出现的事物或事情。
如：I put my pen in the drawer but now I can’t find it.（it指代pen）—Whose is the car?—It is Mrs. Brown’s.（it指代the car）You have saved my life; I will remember it forever.（it指代第一个分句）Here it is, the walkman you just bought.（it指代walkman）the famous mountain.）There is no any doubt about it, the earth goes around the sun.（it指代后一句the earth goes around the sun）③it也可以指复数名词。
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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。
It is important that we (should) learn English well. It is necessary that he (should) remember these words.5. It is said (reported, learned....) that ...该句型中的it 仍是形式主语，真正主语是that 引导的主语从句。
该结构常译为＂据说（据报道，据悉．．．）＂。
It is said that he has come to Beijing.6. It is suggested ( ordered ... ) that ...主句中的过去分词是表示请求，建议，命令等词时，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．．It is suggested that the meeting ( should ) be put off.It was ordered that we ( should ) arrive there in two hours.7. It is a pity ( a shame ... ) that ...该句型中，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。
It is a pity that such a thing ( should ) happen in your class. It is a pity that he is ill.8. It is time ( about time ,high time ) that ...该句型中that 后的从句应该用虚拟语气，值得注意的是①常用过去时态表示虚拟．②有时也用should + 动词原形，should 不能省。
常译为＂是（正是）．．．的时侯．．．＂。
It is time that children should go to bed. = It is time that children went to bed.9. It is the first ( second ... ) time that ...该句型中的that 从句不用虚拟语气，而用完成时态。
至于用什么完成时态，由主句的谓语动词的时态决定。
如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。
该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人第几次做某事了＂。
It is the first time I have been here. = This is the first time I have been here.10 It is the +形容词最高级+ 名词+ that + …..该句型中的that 从句不用虚拟语气，而用完成时态。
至于用什么完成时态，由主句的谓语动词的时态决定。
如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。
该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人做过的最…的事情＂。
This is the best film that I have ever seen . That was the worst song that he had heard .11. It is .... since ...该句型主要用作处理瞬间动词的完成时，又要和表示一段时间的时间状语连用的问题。
主句中是时间作表语，其时态是现在时或完成时，since 引导的从句通常是一般过去时态，而且是瞬间动词。
如果主句是一般过去时，从句则用过去完成时。
It is ( has been ) 5 years since his father died.12. It is ... when ...该句型中的when 引导的是一个时间状语从句，主句中的it 指时间，表语由具体的时间充当。
常译为＂当．．．的时候，是．．．＂。
It w as 5 o’clock when he came here.比较：There was a time when + 定语从句（曾经一度….；有一个时期…）There was a time when Iraq was one of the strongest countries in the world .There was a time when I was disappointed and wanted to leave here .13. It be ... before ...该句型主句中的it 指时间, 主句中的时态常是将来一般时或过去时两种时态．主句中的表语多是long, not long , 3 days , 2 weeks 等表示时间段的词或短语。
常译为＂．．．之后．．．＂。
It was 3 days before he went to Beijing. It will be not long before he finishes his job.14. It happens (seems, looks, appears ) that...该句型中it是形式主语，that 引导的是主语从句，主句中的happen , seem等词是不及物动词．It happened ( so happened ) that he met his teacher in the street. 碰巧．．It seems that he will be back in a few days. 看来．．．15. It looks ( seems ) as if ...该句型中it无意义。
as if 引导一个状语从句。
常译为，＂看起来好象．．．＂如果与事实不相符合，则用虚拟语气．It looks as if he is ill.It looks as if he were ill. It seemed as if he were dying.16. It takes/costs sb. ... to do sth.该句型中的不定式是真正的主语，it是形式主语，句型中的直接宾语是时间。
常译为＂做．．．要花费某人．．．＂。
It took thousands of people many years to build the Great Wall.注意：当主语和表语都是不定式时，不能用it 作形式主语代替动词不定式。
To see is to believe . To respect others is to be respected .17. It is kind ( of sb. ) to do sth.该句型中的不定式短语是真正主语，如果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形容词。
常见的有：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.It is kind of you to say so. = You are kind to say so.18. It is necessary ( for sb. ) to do sth.如果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，安全等情况的形容词。
常见的形容词有：①important, necessary, natural ②easy , safe , common , normal , hard , difficult , dangerous , unusual, rare , impossible , pleasant等。
在①中的形容词作表语可以用从句改写，It is important for her to come to the party. = It is important that she (should ) come to the party19. It is no good / use / fun doing sth.It is a great pleasure / a waste of time / a bore doing sth .It is useless / nice / good doing sth .该句型中的真正主语是动名词或动名词短语，主句中的表语可以是名词或形容词。