语法基础it的用法
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。
高中英语 语法代词 it的用法课件(共32张ppt)
2) It was not until __C__ that ____ to prepare his lessons. A. did his father come in, the boy began B. did his father come in, did the boy begin C. his father came in, did the boy begin D. his father came in, the boy began
3) I hope that it will be fine Weather tomorrow.
4) It’s spring now.
Season
5) It’s quiet here. Circumstance
2. 用作人称代词, 代表前面提到的人 或事。
1) Who’s it? _It_’_s me. 2) Look at the picture. _I_t is a picture
Exercises
1) It was not _C__ she took off her dark
glasses ___ I realized she was a
famous film star.
A. when, that B. until, when
C. until, that
D. when, then
3. I don’t think __D_ possible to master a foreign language without much memo ry work. A. this B. that C. its D. it
4. Was it during the Second World War _A__ he died? A. that B. while C. in which D. then
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。
高考英语语法总复习7it的用法课件
A. it
B. her
it作形式宾语
C. that
D. this
★it知识点补充★
it变化成形物代形式 注意区分its和it’s
it→its(它的)
it’s=it is
it和现三单 It sounds good.
it
it变化成反身代词 it→itself(它自己)
it变化成复数形式 it→they(他们 主格) it→them(他们 宾格)
注意: 某些动词(短语)后接从句时要用it作形式宾语，再接从句，构成“动词(短语)+it+that/if/when/...从句”，如： ①I hate/like it when... 我讨厌/喜欢... ②You should see to it that... 你应该确保... ③You can depend on it that... 你可以相信... ④I can’t help it if... 如果...我也没有办法 ⑤I would appreciate it if... 如果...我将感激不尽
★常用it作形式主语的句式★
(5)用于It is/was...that/who... 强调句中 1.It was they that/who cleaned the classroom yesterday.
昨天是他们打扫的教室。
2.They cleaned the classroom yesterday.
were using ___it___ every day.
此处作using的宾语，根 据语境可知，所填词指 代上文的railway，故填
it
(4)作形式主语或形式宾语，代替动名词、不定式或从句
2.I find it difficult to work with him.
英语语法详解：代词it的用法总结
英语语法详解：代词it的用法总结it是最常见的代词之一，用法很广泛。
虽然考察it的题型有很多，如阅读理解、完形填空、语法填空、短文改错等，但大多不属于难点。
因此，学习代词it的用法是一件相对轻松的事情。
相信每个人在英语学习初期，会发现在很多不同的语境下都会使用代词it，足以说明其用法的广泛性。
代词it看似简单，但并不代表每个人都能了解它的全部用法，尤其是在高考考点会涉及到的用法。
下面，就简要总结代词it的常见用法。
it的用法一：it用作代词（1）it用作人称代词it用作人称代词，一般指未知或不明身份的人。
例句：Who is it in the room? Open the door!谁在房间里啊？把门打开！（2）it用作指示代词作指示代词时，it的用法相当于this或that。
有时候it并不特指某件具体的事物，而是代表前面提到的、或者即将提到的某件事情。
例1：She said it was a very popular film，but I don't like it.她说那是一部非常流行的电影，但我却不喜欢（它）。
例2：She does not really treat me as a family member，and it has hurts me badly.她并没有把我当家人看待。
这就让我很受伤。
（3）it作非人称代词代词it还可以用来指代时间、距离、价值、天气、温度、环境等无生命的抽象事物，无阴阳之分。
例1：—What time is it by your watch?你的表到几点了？—It is 9:39 9点39。
例2：It is really quiet in the woods.小树林里真安静。
It的用法二：it用作形式主语或形式宾语（1）it作形式主语当句子的主语是动词不定式、动名词或名词性从句时，为了避免头重脚轻的句式结构，我们往往把主语部分放在谓语的后面，而用it作为形式主语放在句子的开头处。
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。
高考语法it用法详解
一. it作人称代词在特定的环境中，it可指人，如指婴儿、性别不详或身份不明的人。
e.g.1. The baby stopped crying as soon as it saw the woman.（指婴儿）2. —Who is it?—It’s me.（性别不详或身份不明）二. it作形式主语或形式宾语it可以作形式主语或形式宾语而把真正的主语或宾语后置。
1. 用it作形式主语的情况：(1) It＋系动词＋形容词＋that从句It is necessary/important/surprising/strange＋that从句，从句中谓语动词常用“should＋动词原形”形式，且should可省略。
(2) It＋系动词＋名词＋that从句It is a pity/a shame/good news/a fact/an honour/a wonder/no wonder/our duty＋that从句。
e.g. It’s no wonder that you’ve achieved so much success.难怪你取得了如此大的成功。
(3) It＋不及物动词＋that从句It seems/happened/turned out /occurs/appears＋that从句。
e.g. It happened that he was out when I called on him.当我去拜访他的时候，碰巧他出去了。
(4) It＋系动词＋过去分词＋that从句It is said /reported/ announced/ believed/ thought/ well known/ hoped/ pointed out/ found out/ suggested/ ordered/ advised/ requested/ insisted/ required/ demanded＋that从句。
语法专项复习 it的用法
语法专项复习：IT的用法一、人称代词1. it指刚提到的事物本身, 以避免重复:例如: They watched the train until it disappeared in the distance.one用来替代前面出现的单数名词，泛指，相当于a/an+单数名词。
ones用来替代前面出现的复数名词，泛指。
the one 用来替代前面出现的特指的单数名词；the ones 用来替代前面出现的特指的复数名词；that与所指名词为同类，但不是同一个；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。
it 表示特指，与所指名词为同一个。
用来替代前面出现的单数名词2. 指动物或婴儿(未知性别的婴儿或孩子);或不重要的人, 常见于敲门或打电话:例如: 1) Is this your dog？No, it isn’t.2) They got a baby and it was a ten-pounder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.2. 作形式主语: 当句子的主语为不定式、动名词(doing)或主语从句时，为保持句子的平衡，常把真正的主语移到句末；用it作形式主语放在句首，it无具体的意义。
“It”作形式主语的句型：1) It is/was +名词( no wonder, an honor, a good thing, a pity, no surprise…)＋主从例句：It is a pity that we can’t go.2) It is/was ＋形容词(obvious, natural, surprising, wonderful, possible, likely, certain…)＋主语从句例句：It is clear that Tom has returned.3) It is/was＋过去分词(said / reported / believed / known / thought / expected / decided / announced / arranged…)＋主语从句例句：It is said that President Jiang will visit our school next week.4) It＋动词(happens /occurs / seems…) ＋主语从句例句：It occurred to him that he failed in the examination.5) It doesn’t matter how/whether…例句：It doesn’t matter whether he is wrong or not.6) It is time ( about time, high time ) + that从句(虚拟语气:动词用过去时did)例句：It is time that children went to bed.7) It 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 )例句：It is the first time I have been here. = This is the first time I have been here8) It is difficult/easy… for sb. to do sth.It is typical/nice/kind… of sb. to do sth.例句：It is kind of you to say so. = You are kind to say so.It is important for her to come to the party.9) It is no use/useless/no good/ a waste of time doing sth.例句：It is no good learning English without speaking English.It’s useless trying to argue with Shylock.10) It takes sb. some time/ some money to do sth.: 做．．．要花费某人．．．例句：It took thousands of people many years to build the Great Wall.11) 其它常见句型:1. It is + 时间段+ since sb. did sth.: 自…以来已经有多久了例句：It is six years since you began to learn English.2. It will be + 时间段+ before sb. do sth. 要过…时间，才……3. It was long before sb. did sth.. 过了很久才……4. It wasn’t long before sb. did sth. 没过多久就……5. It will be long before sb. do sth. 要过很久才……6. It won’t be long before sb. do sth. 过不了多久就……7. It is up to you whether to go. 是否去由你决定。
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。
高考英语语法之it的用法
2. I hope there are enough glasse for each guest to have ________.(NMET 1995) A.it B.those C.them D.one 解析:答案为D.本题考查替代词it和 one的区别.it用于替代同类的,特定的, 同一的事物;one替代同类的,泛指的 人或物.根据题意"我希望有足够的杯 子使每个客人有一个."可知应用one 泛指enough glasses中的一个.
4)It is no use/ good + doing sth. It is no use trying again = It is of no use to try again. (5)It is + 被强调部分 + that/who + … Was it in the street that you met her? Who was it that called him "comrade"? It was not until yesterday that I met my old friend. It is in a small factory that my brother is going to work.(注意上述各句均为强调句型的"考点") 比较:It is a small factory where my brother is going to work.(定语从句)
(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.
英语语法14之it的用法
五、it用在习语中
1.it用于某些动词（短语）之后，词义含糊，构成习语。多半出现在 口语中和非正式文体中。常用的有：make it办成功，make it do凑合， cab it乘车，come it 尽自己的份内事，come it strong做得过分，beat it 走，滚，hop it走开，chuck it停止，go it alone单枪匹马地干，brave it out拼命干到底，have it out讲个明白，beat it up狂欢，hang it岂有此 理，见鬼，catch it挨骂，受罚，hand it out痛打，严罚，put it mildly 毫不夸张地说，let sb have it让某人吃苦头，How comes it?这是怎么搞 的？take it out of sb拿某人出气。 举例：You will catch it for breaking the glasses.
高考英语二轮复习之必备语法it的用法、常用句型(共28张PPT)
【说明】能用于此结构的动词不多，常见的 有 have, take, put, like 等
(2) 动词 + it + when (if)-从句。如： I dislike it when you whistle. 我不爱听你吹口哨。 We really appreciate it when she offered to help. 她 来帮忙了，我们十分感激。
四、it用在一些固定表达中 As someone puts it, ... 像某人所说的那样 Please see to it that ... 请务必…… When it comes to ... 当提到……时 It looks / seems as if ... 看起来好像…… It’s time for sth. 该做某事了 It’s time (for sb.) to do sth. (某人)该干某事了 It is (high) time that ... (早就)该……
Mary. I haven’t a dictionary; can you lend me one?
1. how would you like ___D__ if you were watching your favorite tv program and someone came into the room and just shut it off without as you? a. them b. one c. those d. it
五、it与one的区别 两者均可代替前面提到的事物，区别是： it指的是与前面已提到的事物为同一物，此 时的it等于“the +名词”；而one 指的是与 前面已提到的事物为同一类物，此时的one 等于“a +名词”。 e.g. I have a dictionary but I’ve lent it to
【高中英语】高中英语语法：It的完整用法
【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。
it句型归纳总结大全
it句型归纳总结大全"it"句型是英语中常见的一种句型结构，通常用来强调或者指代特定的事物或情况。
下面是对"it"句型的归纳总结：1. 强调句型：It is (was) + 被强调的部分 + that/who + 其余部分。
例，It is the book that I want to read.（我想读的就是这本书。
）。
例，It was Mary who broke the window.（打破窗户的是玛丽。
）。
2. 虚主语句型：It + be + 形容词 + to do.例，It is important to learn English well.（学好英语很重要。
）。
3. 虚宾句型：It + be + 名词 + to do.例，I find it a pleasure to work with you.（我觉得和你一起工作很愉快。
）。
4. 指代句型：It + be + 形容词 + (for sb.) + to do sth.例，It is easy for me to solve the problem.（对我来说解决这个问题很容易。
）。
5. 天气句型：It + be + adj. + (for sb.) + to do sth.例，It is hot for us to go out.（对我们来说出去很热。
）。
6. 距离句型：It + be + 距离 + to + 地点。
例，It is five kilometers to the station.（离车站还有五公里。
）。
以上是对"it"句型的归纳总结，希望对你有所帮助。
如果你还有其他问题，欢迎继续提问。
语法专题十：it的用法
语法专题十：it的用法1.指代事物、动物、婴儿或未知的人。
2.指天气、时间、距离、自然现象、环境等。
3.代替不定式，作形式主语或形式宾语(常与feel, consider, find, believe, make, take,imagine, think, suppose, regard等连用)。
4.代替动名词，作形式主语或形式宾语：It is no good / no use / useless / dangerous + doingI think it no good / no use / useless / dangerous + doingI think it no use complaining about their prejudice.5.代替主语从句、宾语从句，作形式主语或形式宾语：It seems / appears / happens / turns out / proves + that…It is certain / likely / possible / probable + that…We have made it clear that she has nothing to do with the case.6.用于强调句：It is / was … that / who…A student witnessed the car accident at the turning last night.(1 ) ( 2 ) ( 3 ) ( 4 )(1) _________________________________________________________.(2) _________________________________________________________.(3) _________________________________________________________.(4) _________________________________________________________.It is not until +被强调的部分+ that…I didn’t realize she was a famous film star until she took off her dark glasses.________________________________________________________________.7. 其他重要句型：It is important (necessary, right, strange, natural) that…（should+动词原形）It is said (reported, learned…) that…It is suggested (ordered…) that…（should）+动词原形It is a pity (a sham) that …（should）+动词原形It happens (seems, looks, appears ) that...It occurs to sb. to do / that…：使某人想起……It is/ has been +一段时间+ since ...+过去时It will be +一段时间+ before ...It looks ( seems ) as if …It is no wonder…：难怪When it comes to…：当谈到……It comes about that…：发生8. appreciate, love, like, hate, see to(负责，注意) + it + 从句巩固练习：1. It took us over an hour ______ along the street.A. walkB. to walkC. walkingD. walked2. I think it a great honour ______to visit your country.A. to inviteB. invitingC. having invitedD. to be invited3. Many people now make ______a rule to buy cards for their friends before Christmas.A. themselvesB. itC. thatD. this4.______is very clear to everyone that he's round and tall like a tree.A. ThisB. WhatC. ThatD. It5. ---It is raining cats and dogs.---______ .A. So it isB. So is itC. Neither it isD. Neither is it6. It's no use ______over spilt milk.A. cryB. cryingC. that you cryD. for you to cry7. It is important ______ their offer.A. rejectB. rejectsC. to rejectD. rejecting8. Has ______been decided when we are to hold the sports-meeting?A. thatB. thisC. itD. what9. ---Did Li Lei call me while I was out?---Yes, it was ______ that called you.A. h imB. heC. whoD. whom10. I don't know ______makes her afraid of having her business discussed.A. what it is about Mary thatB. that is it abut Mary whatC. what is it about Mary thatD. that is about Mary what11. It was with great joy ______ he received the news that his long lost son would return home.A. asB. thatC. soD. for12. I don't think ______difficult for a student to master a foreign language within five years.A. thatB. itC. tooD. very13. It's the second time you ______ late this week.A. arrive B .arrived C. have arrived D. had arrived14. It will not be ______we meet again.A. long beforeB. before longC. soon afterD. shortly after15. It's demanded that we ______there on foot.A. not to goB. don't goC. not goD. won't go16. It was not until 1936 ______ basketball became a regular part of the Olympic Games.A. thatB. whenC. whichD. then17. ______ you met the Englishman?A. Where it was thatB. Who it was thatC. Where was it thatD. Where was that18. ______ certain that his invention will lead to the development of production.A. That'sB. This isC. It'sD. What's19. Tom's mother kept telling him that he should work harder, but ______didn't help.A. heB. whichC. sheD. it20. It is important that she ______with Mr. Williams immediately.A. speakB. spokeC. will speakD. to speak21. ______that there’s another good harvest this year.A. It saysB. It is saidC. It was saidD. He was said22. I really appreciate ______ if you can lend your computer.A. thatB. whatC. itD. which23. I didn’t ______ her ______ for help.A. occur; to askB. occur to; to askC. occur to; askingD. happen to; that to ask。
it 和them的用法
it 和them的用法使用"it"和"them"的正确方式引言：在英语语法中，我们经常会遇到代词的使用。
其中，"it"和"them"是两个常见的代词，在不同情境下有着不同的用法。
本文将详细介绍并解释如何准确地使用这两个代词。
一、 "it"的用法1. 作为主语：a) 描述天气：例如，"It is raining."（在下雨）b) 描述时间和日期：例如，"It is 9 o'clock."（现在是9点）c) 引出论题或观点：例如，“It is said that laughter is the best medicine.”（据说笑是最好的药）2. 作为形式主语：a) 当关于时间、天气或环境的真正主语太长或复杂时，可以使用形式主语"it"。
例如，"It is important to exercise regularly."（定期锻炼很重要）3. 作为强调句子中的句型元素：a) 强调某人/某物具备某种特征时：例如，“It was John who won the race.”（是约翰赢得了比赛）4. 在特定动词短语中充当宾语：a) 表示存在感觉(感觉、听到、看到等): 例如，“I can hear it singing in the trees.”（我能听到树上有鸟在唱歌）二、 "them"的用法1. 作为复数的人称代词:a) 指代前文中提到的复数名词：例如，“I saw my friends yesterday. I talked to them for hours.”（昨天我见到了朋友。
我和他们聊了好几个小时。
）2. 作为不定代词：a) 泛指某个或某些事物，常与"of"连用：例如，“I need some books, but I don't have any of them.”（我需要一些书，但是我没有任何一本。
动词不定式it的用法
动词不定式it的用法在英语学习中，动词不定式是一个重要的语法点，而其中“it”在动词不定式中的用法常常让学习者感到困惑。
下面我们就来详细探讨一下这一用法。
首先，我们要明白什么是动词不定式。
动词不定式是一种非谓语动词形式，通常由“to ＋动词原形”构成，比如“to do”“to go”“to study”等。
它在句子中可以充当主语、宾语、定语、状语等成分。
当“it”用于动词不定式结构中时，主要有两种常见的句型：“It ＋ be＋形容词＋ for/of sb ＋to do sth”和“It takes/took sb ＋时间＋to do sth”先来看第一种句型“ It ＋ be ＋形容词＋ for/of sb ＋to do sth” 。
在这个句型中，“it”作形式主语，真正的主语是后面的动词不定式“to do sth”。
使用“for”还是“of”，要根据前面的形容词来决定。
如果形容词是描述事物的性质、特征的，比如“difficult”“easy”“important”“necessary”等，就用“for”；如果形容词是描述人的品质、性格的，比如“kind”“clever”“foolish”“nice”等，就用“of”。
比如说，“It is important for us to learn English well” 这里“important”是描述“学好英语”这件事的重要性，所以用“for”。
而“It's kind of you to help me” 这里“kind”是形容“你”这个人善良，所以用“of”。
再看第二种句型“It takes/took sb ＋时间＋to do sth” ，这个句型表示“做某事花费某人多少时间”。
例如，“It took me two hours to finish my homework yesterday” 意思是“昨天我花了两个小时完成作业”。
此外，还有一种比较特殊的情况，就是“it”作形式宾语。
四级语法：cet4-语法-it的用法
四级语法：cet4-语法-it的用法As soon as is born he begins to die.It 的用法一．It做人称代词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.It’s hard work, but I enjoy it.“Where is the dog?” “It’s in the room. ”------------------------------------------------------------------------------------------------------2.指人it 指人主要用于指不性别不明的婴儿或用于确认某人的身份。
如：Is it a boy or a girl?There is a knock on the door. It must be my brother.说明:在答语中，常用来指本人，如说It’s me。
----------------------------------------------------------------------------------------------------------3.代替某些代词代词it 还可用于代替上文提到的指示代词this, that 以及复合不定代词something, anything, nothing等。
如：---“What’s this?”---“It’s a new kind of mobile phone. ”Nothing is wrong, is it? 没出什么问题，是吗?----------------------------------------------------------------二．It做非人称代词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，称为非人称的it：1.指天气：It is a lovely day, isn’t it?It is a bit windy.2.指时间: It was nearly midnight when she came back.3.指环境: It was very quiet in the café.4.指距离：It is half an hour’s walk to the city centre.5指日期：What's the date today? It's the eleventh,October.6指季节：It is summer now.7指度量：It is about 20 pound/kg8.指价值：--- What's the cost of the dictionary?---It is sixty-three.9 It's 35 centigrade now. So I feel hot.----------------------------------------------------------------------Tom's mother kept telling him that he should work harder,but______didn't help.A.heB.whichC.sheD.it---------------------------------------------------------------------------------It用于强调句：1. eg: It was the boy who caused the fire yesterday.It’s I that/who am going to see my dentist.It’s him that my sister love best.It was at five o’clock that he came here.Where is/was it that you met your formal teacher?以上为it’s(was)+强调部分+tha t(who)…wh-is it that+s+V?h------------------------------------------------------------------------ He was nearly drowned once.-When was ______?-______was in 1998 that he was in middle school.A.that;ItB.this;ThisC.this;ItD.that;This Was ______ that I saw last night at the concert?A.it youB.not youC.youD.that yourself ----------------------------------------------------------------------- it充当形式主语：1. It was very obvious that he was telling a lie.=That he was telling a lie was very obvious.It is true that the earth moves around the sun.=That the earth moves around the sun is true.以上为it’s clear/true/certain/possible/obvious+that(主语从句)----------------------------------------------------------------------------- 2.It’s important that we (should) help each other.It’s necessary that he remember as many words as possible.It is strange that he stands here who left for US an hour ago.以上为It’s i mportant/necessary/strange+that+S+(should)+V特殊形容词，切记虚拟--------------------------------------------------------------------------- 可别忘了：it’s important/necessary/strange+for sb+to do sth1.Is______necessary to complete the design before National Day?A.thisB.thatC.itD.he------------------------------------------------------------------------3.It’s suggested that sports meeting (should) put off.以上为it’sordered/commanded;suggested;required;proposed+that+S(should)+V 表建议，要求，命令，主语从句------------------------------------------------------------------------- 4..It’s a shame that such a thing should happen in my class.It’s a pity that he was ill,so he didn’t came here.It’s a pity/shame that +should +V,译为竟然S+V(该什么就什么)------------------------------------------------------------------------------- 还有It’s a fact/a wonder/no wonder that______is a fact that English is being accepted as an international language.A.ThereB.ThisC.ThatD.It-------------------------------------------------------------5.It’s reported that another accident happened in this area.It’s said that he would come.It’s estimated that 1.8 persons die and 4.1 persons was given to birth per seconds.It’s said/reported/announced/claimed/believed/thought/accepted/estimated/announced…+that S+V------------------------------------------------------------------------------------6. It doesn’t matter if they are young or lack of experience.It didn’t m atter whether you understood me.It doesn’t matter whether you are rich,I will marry to you.以上为it doesn’t/didn’t if/whether--------------------------------------------------------------------------------7.eg:It happened that he met his friend in the street.It seems that no one knows he is a liar.It appeared that she didn’t like him.It occurs to me that I can solve the problem in this way.以上为It occurs/happens/disappears/appears/seems/occurs to sb that +S+V(主语从句)Vi linkV-----------------------------------------------------------------------------------8. eg:It took thousands of people many years to build the Great Wall.It takes me the whole morning to accomplish the work.It takes me quite a long time to understand the meaning of the painting by PICA-SSO.以上为it takes/took sb some time to do sth-------------------------------------------------------------------------------------9.eg：It’s kind of you to say so.=You are kind to say so.It’s brave of you to save the girl who was in the river.=You were brave to save the girl who was in the river.It’s cruel of him to do that.=He is cruel to do that.---------------------------------------------------------------------以上为it作形式主语替代不定式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。
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Talk about the following pictures, using
It is no use/good doing sth 做……没有用/不好 It is fun doing sth 做……很有趣
还想跑？ 甭想！
想追我?
没门！
Proverbs(谚语) with “It”
① It is never too old to learn. 活到老, 学到老。
② It is easier to fall than to rise. 摔倒容易爬起来难。
③ It is no use crying over spilt (溢出的) milk. 覆水难收。
④ It never rains but it pours(泼水). 不鸣则已, 一鸣惊人。
一、 用作人称代词, 代表前面提到的人或事物 1) Who’s it? ___It_’_s___ me. 2) Look at the picture. __I_t __ is a picture of our school.
二、用于代替指示代词this 和that。 ---Is this jacket yours? ---Yes, __i_t___ is.
Read and analyze the sentences.
It is obvious that the water was to blame. It is true that he will treat me for breakfast tomorrow. It is certain that our class will do a good job in the final exam. Is it possible that he will become the chairman of our country? It is amazing that at my age I still look like a student! 分析: it是 __形__式__主__语__, 句子真正的主语是 _t_h_a_t_引__导__的__主__语__从__句__。
四、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 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 It is illegal (for a teenager) to drive a car without a license.
⑤ It is easy to open a shop but hard to keep it always open. 创业容易守业难。
⑥ It takes three generations (代) to make a gentleman. 十年树木, 百年树人。
Read and analyze the sentences.
三、用以表示时间、距离、天气、气候、 季节、环境等
1) It is half past eight now. Time 2) It’s only half an hour’s walk from here
to our school. Distance 3) I hope that it will be fine tomorrow. Weather 4) It has rained much this year. Weather 5) It’s spring now. Season 6) It’s quiet here. Circumstance
It is Friday today. date It was very cold last Monday. weather It is about 8:30 now. time It is about 25km from Longxian to Bazi. distance It lies in the south of Shaoguan city. place It is 40°C ! You got a high fever! temperature Conclusion: it 可以用作非人称代词, 表示_日__期__, _天__气__, __时__间__, _距__离___, _地__点___, _温__度___等。
牢记以下常用于该句型的形容词
It is clear/obvious/true/possible/certain/ amazing/ridiculous等+ that从句.
思考: 为什么要用it做形式主语而把真正 主语放到后面去?
遵循英语语言的尾重原则, 避免句子 头重脚轻。
The use of “it”
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, careful careless, silly, foolish, stupid, clever, wise, crazy. 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 while doing/ to do It’s no use crying over spilt milk.
2. it作形式主语替代主语从句 ①It is adj. + clause 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……)”, 是主语从句最常见的一种结构。 e.g. It is very clear that he’s round and tall like a tree.