“it”用法总结(经典版)
“it”用法总结(经典版)
It was yesterday that I met your father in the street．
②不管被强调部分是哪种状语，只能用that 连接，不得使用where、when等连词.
It was in the street that I met your father yesterday．
2.2.指时间: It was nearly midnight when she came back.
2.3.指环境: It was very quiet in the café.
2.4.指距离： It is half an hour’s walk t-o the city centre.
三 强调句1. It is + 被强调部分 + that ...
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③被强调部分为人时，可用who(主格或宾格)和 whom(宾格)代替that，用that也行。
1) It was your father that/whom /who I met in the street yesterday．
2) 2) It was I that/who met your father in the street yesterday．
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四 it 用作形式主语
3.1 代替主语从句
1）It is + adj. +that从句
① It is clear ( obvious， true， possible certain....) that ..... “清楚（显然，真的，肯定．．．）”
It is very clear that he’s round and tall like a tree.
高考英语二轮复习it用法20张
• It is snowing on the mountains.
• 山上正在下雪。
• What time is it? It’s two-thirty.
• 几点了？现在是两点半。
• It's been almost a week and she hasn't been coughing today.
• 真正主语可能是动词不定式，动名词或主语从句， 一般后置。
• It is dangerous to play with fire. • 玩火是危险的。 • In all things, it is better to hope than to despair. • 凡事抱希望为佳，不应悲观而失望。
• （4）.It + seems/happens/ appears/doesn't matter/makes no difference＋that从句。
• 备注：要体会that从句用陈述语气，还是虚拟语 气。
• 2. what从句，what引导主语从句做形式主语。 • 如：It doesn’t matter what he says.
• 1. that从句。基本模式为： it＋系动词＋表语＋ that从句。主要四种句型：
• 1）.it＋be＋形容词＋that从句。句型的形容词有： necessary clear，true， strange， important， wonderfulpossible，likely， obvious， surprising等。
• （2）.It＋be＋名词（词组）＋that从句。常用于 这种句型的名词（词组）有：fact， good idea， honour， shame， no wonder， good news等。
(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。
It的用法及典型句型归纳. 个人总结
It的用法及典型句型归纳一、人称代词it的最基本用法是作代词，主要指刚提到的事物，想法，以避免重复;也可以指性别不明或性别被认为是不重要的人或动物；未指明但谈话双方都明白的事情或情况。
①They watched the train until it disappeared in the distance.②Is this your dog？No, it isn’t.③I hate it when people talk with a full mouth.．二、.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：It is a lovely day, isn’t it? // It was nearly midnight when she came back.It is April First today. // It is some 3000 kilometers from A to B.It is three dollars. // Today it is 30 degrees centigrade.三、作形式主语，替代主语从句，动词不定式，或动名词短语1.作形式主语替代主语从句⑴It is clear ( obvious，true，possible，certain....) that＂┅清楚的（显然的，真的，可能的,肯定的．．．）＂⑵It is important ( necessary，right，strange，natural...) that + (should ) do (虚拟语气)┅是重要的(必要的,对的,奇怪的,自然的┅)⑶It is said (reported/ learned/believed/thought/known/told/hoped.....) that= sb / sth is said (reported/ believed /thought…) to do( to be doing/ to have done) sth＂据说（据报道，据悉．．．）＂。
代词it的用法总结
代词it的用法总结下面是店铺整理的一些代词it的用法总结，欢迎大家阅读!it的用法总结it是常见代词之一，它既可以指代时间、地点、天气、距离等，还能作形式主语或形式宾语，同时可以引起强调结构，是历年高考热点之一。
现结合高考试题对其用法作一介绍。
一、用来表示时间、天气、地点、距离、环境、形势等。
例如：It is two miles to the beach. (Oxford) 这里到海滨有两英里。
It was raining in the morning. (Oxford) 今天早晨下着雨。
If it’s convenient I can see you tomorrow. (Oxford) 如果方便，我明天能见你。
it表示时间常用于句型：1、It is/has been+一段时间+since 从句。
意为“自……以来已有多长时间了”或“自不……以来已有多长时间了”。
例如：1)It is/has been many years since I was last in London 自从我上次到伦敦，已经有许多年了。
2)It’s a long time since we met last. 自从我们上次见面以来已经有很长一段时间了。
2、It is/ was/ will be + 一段时间 + before 从句。
表示“在(做某事)前过了多长时间”，或“过了多长时间才……”。
如：But it will be more than 100 years before the country begins once again to look as it did before.但是在100年之后，这个国家才能恢复到以前的样子。
二、用来指代人。
说明某人的身份或者做某事的人;指代婴儿或儿童;在不清楚某人性别时，也可使用it，尤其在问答的形式中更为常见。
例如：---Look, someone is coming. Who can it be?---It may be the headmaster.---It can’t be him. He has gone to Shanghai.---It must be Mr. Zhang. He looks like the headmaster.三、用来指代前文中的内容，或指代整个主句。
it的用法总结
it的用法总结和练习①It is never too old to learn. 活到老，学到老。
②It is easier said than done. 说起来容易做起来难。
③It is no use crying over spilt milk. 覆水难收。
④It never rains but it pours. 不鸣则已一鸣惊人。
一、it的常用固定词组二、it 做代词的用法1.Tom has failed in the exam. Have you heard about it?代替前文提到的东西或事情。
2.Tom bought a new house, but it needed lots of work before he moved in. 代替同名同物。
3.Whose room is this? It is theirs.代替指示代词this,that的作用。
4.Let’s go to see who it is. 指明某人某事的身份或不知男女用it。
5.It’s Sunday today.（date）It is very cold today. （weather）It is about 8:30 now. （time）It’s 5 yuan. （value）It lies in the south of Shaoguan city. （place）It is 5 kilometers from A to B. （distance）三、it做形式主语的用法1.It+ be+ adj+ of/for+ sb +to do sth（用of的形容词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））2.It+ be+ adj +that/whether +从句（true /easy /hard /necessary /curious / obvious /likely /possible /probable /good /wonderful /natural /certain / natural / strange / normal / unusual/ impossible / pleasant / important）3.It+ be+ pp（said /reported /believed /supposed/ expected /proved / hoped / thought / known / decided / advised / ordered / demanded ）+that+ 从句4.it is/was a pity that …it is/was no wonder that …it is/was a shame that …it is/was no surprise that …it is/was an honor that …it is/was a good thing that …it is/was a fact that …5. It seems/seemed that/as if …It happens/happened that/as if …It appears/appeared that/as if …6.It hits/hit sb that …It strikes/ struck sb that …It occurs to sb that …It occurred to sb that …7.It is/was no use doing sth It is/was no good doing sthIt is/was useless doing sth四、it作形式宾语的用法1.Sb +动词+ it +if/ when 引导的宾语从句（like / dislike / hate / enjoy / love / appreciate）2. 6123结构think / make / find / consider / feel/ believe3.I take it that you will be leaving for Shanghai soon.认为The rumor has it that the mayor will resign to take the responsibility for the crisis. 据传You can count on it that he will arrive on time. 期待She will see to it that he goes ahead. 确保You can depend on it that the result will be announced.五、常用句式。
英语中it的用法
it 在英语中的意思较多，用法较广，现总结如下。
一、it作句子的真正主语1．it 指前面已经提到过的人或事物，有时指心目中的或成为问题的人或事物，作真正主语。
例如：What’s this? －It is a sheep? 这是什么？？这是一只绵羊。
Who is it? －It’s me (I). 谁？？是我。
It’s the wind shaking the window. 是风刮得窗户响。
2．it指时间、季节。
一般用在无人称动词的主语。
例如：What time is it? －It’s nine. 几点了？？九点了。
It’s time for the meeting. Let’s go. 开会的时间到了，我们走吧。
What day is today? －It’s Saturday. 今天星期几？？今天星期六。
What’s the date today? －It is October 1st.今天是几号？？今天是十月一日。
What season is it? －It is summer. 现在是什么季节？？是夏季。
3．it 指气候。
一般作无人称动词的主语。
例如：Is it cold in this room? －No, it isn’t. 屋里冷吗？？不冷。
What’s the weather like today? －It is fine.今天天气怎么样？？是晴天。
It often rains in summer and it often snows in winter in this city.这个城市夏天经常下雨，冬天经常下雪。
4．it指距离、情况等。
一般用作无人称动词的主语。
例如：It is five kilometers from my home to the school.从我家到学校有五公里。
It is very near from this factory to that one.从这个工厂到那个工厂非常近。
It用法总结
It用法总结it的用法1．it作代词(1)在答语中替代this或that。
如：-What's this？-It's a frog.(2)指已提到过的物体。
如：I've lost it on my way home.（3)指情形、行为等。
如：Jack is ill. Have you heard about it?(4)指人（不明的人或婴儿）。
如：Who is it?(5）指天气、温度、时间、距离等。
如：It is raining. It's very hot. It's five o'clock.2.引导词it(1）作形式主语。
如：It is difficult to understand the passage.It is no use trying.It is said that the meeting will be put off.4)It+take+(sb.) some time / some money+to do sth. 例如:It will take them more than ten years to complete the Three Gorges Dam.5)It+be+said / reported / told等+that-clause. 例如:It is said that he will leave for Beijing tomorrow.6)It+vt.+sb.+that-clause. 例如:It worried her a bit that her hair was turning grey.[原题再现] ①________is a fact that English is being accepted as an international language.A. ThereB. ThisC. ThatD. It② In fact________ is a hard job for the police to keep order in an important football match.A. thisB. thatC. thereD. it答案: ① D ② D（2）作形式宾语。
高考英语It的用法
It的用法（专项总结及训练）一、人称代词1，it的最基本用法是作代词，主要指刚提到的事物，以避免重复:①They watched the train until it disappeared in the distance.2.，也可以指动物或婴儿(未知性别的婴儿或孩子):②Is this your dog？No, it isn’t.③They got a baby and it was a ten-pounder3.，也可指抽象事物或指抽象环境和情景:③I hate it when people talk with a full mouth.．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 Beijing to Guangzhou.⑸.指价值:It is three dollars.⑹.指温度:Today it is 30 degrees centigrade.三、其他用法1.在句子的主语不太明确时充当主语，表示谁在做某事：①Who is it there? It's I (me/you/he.....).②I thought it was Mary, but it was not she.③Her face lighted when she saw who it was.2.泛泛的指某件事：(有时泛指一般情况)①It doesn’t matter.②It is a shame, isn’t it?③How is it going?(情况怎样)④It says in the newspaper that......3.指最好的或最渴望得到事物①He thinks he’s it. 他一直以为自己是最佳人选。
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。
超详细的It的用法归纳总结（附习题及答案）!
超详细的It的用法归纳总结（附习题及答案）!
超详细的It的用法归纳总结（附习题及答案）！
一、It是代词
指除人以外的一切生物和事物，用来指代时间、季节、天气距离、环境。
在这里，i是一个虚词，没有任何实际意义。
例如:
①It is a quarter to eight now.
现在是八点差一刻。
②It is midnight. 现在是午夜。
③It is time for breakfast.
现在是吃早饭的时间。
④-What is the date today?今天几月几号?
--It is December 3rd. 十二月三号。
⑤--What season is it?现在是什么季节?
--It is summer. 夏季。
⑥--What is the weather like today?
今天天气如何?
--It is fine.天气很好。
--It is foggy and wet.天气多雾又潮湿。
⑧How far is it from the bus station to your home? 从汽车站到你们家有多远?
⑨It is around five miles to the shopping center.从这儿到购物中心大约有五英里。
英语中it的用法
it 在英语中的意思较多，用法较广，现总结如下。
一、it作句子的真正主语1．it 指前面已经提到过的人或事物，有时指心目中的或成为问题的人或事物，作真正主语。
例如：What’s this? －It is a sheep? 这是什么？？这是一只绵羊。
Who is it? －It’s me (I). 谁？？是我。
It’s the wind shaking the window. 是风刮得窗户响。
2．it指时间、季节。
一般用在无人称动词的主语。
例如：What time is it? －It’s nine. 几点了？？九点了。
It’s time for the meeting. Let’s go. 开会的时间到了，我们走吧。
What day is today? －It’s Saturday. 今天星期几？？今天星期六。
What’s the date today? －It is October 1st.今天是几号？？今天是十月一日。
What season is it? －It is summer. 现在是什么季节？？是夏季。
3．it 指气候。
一般作无人称动词的主语。
例如：Is it cold in this room? －No, it isn’t. 屋里冷吗？？不冷。
What’s the weather like today? －It is fine.今天天气怎么样？？是晴天。
It often rains in summer and it often snows in winter in this city.这个城市夏天经常下雨，冬天经常下雪。
4．it指距离、情况等。
一般用作无人称动词的主语。
例如：It is five kilometers from my home to the school.从我家到学校有五公里。
It is very near from this factory to that one.从这个工厂到那个工厂非常近。
代词it的用法总结
代词it的用法总结代词it是英语中一个常见且多功能的代词，被广泛用于代替不同的名词或名词短语。
在本文中，我将总结代词it的主要用法，并提供一些例句来帮助理解。
一、指示物体或动物1. 用作主语：当我们想表达某个特定的物体或动物时，可以使用代词it作为句子的主语。
例：It is my dog.（这是我的狗。
）It is a beautiful flower.（这是一朵美丽的花。
）2. 用作宾语：当我们不需要重复具体的名词或名词短语时，可以使用代词it作为句子的宾语。
例：She bought the new book, and she loves it.（她买了那本新书，她很喜欢它。
）He saw a spider on the wall and killed it immediately.（他看到墙上有只蜘蛛，立刻把它杀死了。
）3. 用作补充说明：有时候我们需要对前面提到过的事物或动物进行进一步的说明，在这种情况下，可以使用代词it来引出补充信息。
例：I found a lost phone yesterday. I gave it to the police station.（昨天我找到了一部丢失的手机。
我把它交给了警察局。
）The cat was hungry. I fed it some food.（那只猫很饿。
我给它喂了点食物。
）二、代替不定性概念1. 用作形式主语：当不定性概念作为句子的主语时，我们可以使用代词it来起到形式上的主语。
例：It is important to be on time for the meeting.（准时参加会议很重要。
）It is necessary to study hard for the exam.（为考试努力学习是必要的。
）2. 用作形式宾语：当不定性概念作为句子的宾语时，我们可以使用代词it来起到形式上的宾语。
例：I find it difficult to understand this concept.（我觉得理解这个概念很困难。
it用法
it用法总结及练习一、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 bedroom.”“狗在哪?”“在卧室里”。
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? 是男孩还是女孩?There is a knock on the door. It must be the postman. 有人在敲门，一定是邮递员。
【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 machine.”“这是什么?”“是一种新机器”。
Nothing is wrong, is it? 没出什么问题，是吗?二、it 作非人称代词的用法1.基本用法it 作非人称代词的用法，主要用于指时间、距离、价值、天气、气候及温度等自然现象。
如：It’s too late to go there now. 现在去那儿已经太迟了。
It rained all day yesterday. 昨天下了一天的雨。
It can get very hot here. 这里有时会很热。
2.用于某些句型It’s time for sth. 该做某事了。
I t’s time to do sth. 该做某事的时候了。
It’s time for sb to do sth. 某人该干某事了。
It’s (about / high) time + that-从句. 某人该做某事了。
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。
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用法总结(高三总复习)
It is two weeks since I saw him
• It’s + 时间段 +It'sstienncyeea.r自s be从for…e I g…rad有uat一ed.段时间了。 • It’s + 时间段It+'s tbeneyfoearres .th过at I多've 长lived的he时re f间or 才… it’s=it was • It‘s + 时间段It w+astthean ty.ea…rs a多go 久whe了n I graduated • It's + 时间段 + when ...是.在某个时刻
三、it用作形式主语
1. 基本用法 • 当不定式、动名词、从句等复杂成分用作句子主
语时，为保持句子平衡，通常把真正的主语放在 句末，而在句首使用形式主语it。如：
• It’s very important to remember this. 记住这
一点很重要。
• It’s hard work climbing mountains. 爬山是费劲
.
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
it在英语中的用法
it在英语语法中属人称代词，意思是“它”，用来指人以外的一切生物和事物。
它的用形式宾语，强调句型中等。
下面我们来详细总结一下it的用法，希望对大家的学习都一、用于指人以外的一切生物、无生命的东西和事情。
一般指说话者心目中已经了解或所指的生物、无生命的东西或事情、没有性别的区分1．指动物和植物。
如：—It looks like a cat！它看上去像只猫！Where's tea grown？It's grown in the southeast of China．2．指代一些无生命的东西。
如：Is it your watch？这是你的手表吗？Look at the rain！It's heavy，isn't it？看这雨！雨很大，对吗？3．代替上文提到过的整个事情。
如：Well，you mustn't play on the road．It's dangerous．It was hard work，but they really enjoyed it．二、用于指代人。
1．指代说话者心目中不太清楚的那个人，常在打电话或敲门时用。
如：—Who was it？是谁（打来的电话）？—Was it Susan？（打电话的）是苏珊吗？—Yes，it was．是的，我是。
—Who is knocking at the door？谁在敲门？—It's me．是我。
2．指说话者心目中的那个人。
如：—Is it your sister，Kate？（那旧照片上的 baby）是你姐姐凯特吧？—No！不是。
—I know—it's you！我知道了，（那）是你。
3．指代性别不详的婴幼儿或在不计较性别时，也可用it来指人。
如The child smiled when it saw its mother．这小孩一见到母亲就笑了。
I don't know who it is．我不知道他是谁。
总结it的用法
总结it的用法在英语中，it 是一个非常常用的代词，具有多种用法和意义。
以下是对 it 用法的详细总结：1. 作为人称代词使用：当我们用 it 代替一个事物或概念时，特别是没有具体性别的事物，例如：“I bought a new car. It is red.”（我买了一辆新车。
它是红色的。
）这里的 it 代替的是车辆这一事物。
2. 指示代词使用：it 还可以用作指示代词，指向一个先前提到的事物或概念，例如：“I bought a new car. It is very fast.”（我买了一辆新车。
它非常快。
）这里的 it 指的就是先前提到的车辆。
3. 在天气描述中使用：在天气描述中，it 还可以代表自然现象，例如：“It is raining.”（下雨了。
）这里的 it 代表正在发生的雨。
4. 强调句子主语：it 还可以在强调句子主语的情况下使用，例如：“It was Mary who won the competition.”（是玛丽赢得了比赛。
）这里的 it 被用于引出强调句子的主语。
5. 虚拟主语：在某些句型中，it 被用作虚拟主语，表示没有具体指向的动作或情况，例如：“It is important to study hard for exams.”（努力学习准备考试很重要。
）这里的 it 引导的不是具体的动作，而是对于努力学习的重要性的描述。
6. 表示时间、日期和天气：it 还可以用于表示时间、日期和天气的句子中，例如：“What time is it?”（现在几点了？）“It is Monday.”（今天是星期一。
）这里的 it 作为一个占位符，用于表示具体的时间和日期。
7. 表示距离：在某些句型中，it 可以表示距离，例如：“How fa r is it to the nearest supermarket?”（离最近的超市有多远？）这里的 it 代表着距离，而不是具体的事物。
高中英语语法It的用法总结
高中英语语法It的用法总结一、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。
It 的用法总结
It 的用法总结一. 代词: 1)指代上文2)指代this/that3)指代未知性别的婴儿或孩子或身份不明的人4）指代时间/地点/天气/温度/距离/环境1.It gets dark very early in the winter.2.What will you call it if it’s a boy?3.I love spring---It’s a wonderful time of the year.4.It’s less than 100 kilometres from here to Jinan.5.When the factory closes, it will mean 500 people losing their jobs.6.What’s this? It’s a cat.7.It has snowed much this year.(1)The book in your bag is very interesting. Can I borrow ?(2) The book in your bag is more interesting than ______ on the desk.(3) The weather here is much colder than____ in Nanjing.(4) The books are free. You can take____ free of charge.(5) The books in the bag are better than _____ on the desk.【句式1】it is /has been + 段时间+ since ----自从----多久了•It is / has been 3 years since I visited your company.【句式2】It was + 段时间+ before ---过了多久-----才--- •It was 3 hours before he realized the truth.【句式3】It will be +段时间+ before --要过多久----才-- •It will be 3 months before they complete the bridge.【句式4】it was + 点时间+ when ---某事发生于---某一时刻—It was 10 o’clock when the big fire broke out .【句式5】It /this is/was the +序数词+ time + 现在完成时态/过去完成时- （表示某人第几次做某事）•It is the second time I have heard of this .【句式6】It is time (about time /high time ) that sb. did /should do （该是干……的时候了）It is time that we went to school.1. It will be years ____ we meet again.2. It is ten years ____ I came to this town.3. It is ten years ago ____ I came to this town.4. It is the third time ___ I _________ (visit) to this town.5. It was 2 am. ___Tangshan earthquake took place.A. whenB. thatC. beforeD. since二. 引导词: 1)形式主语2)形式宾语3)强调句基本结构：It + be/v. +……+(for sb/ of sb.) to do sth (动词不定式) doing sth.（动名词短语）that/ whether …（从句）注意1：: For or Of ?1. It is important ____ us to learn English well.2. It is very kind ____ you to help me learn English.3. It is foolish ____ you to believe him.4. It is necessary ____ you to go over this lesson.注意2;It 何时代替doing?It +be + no useno good + doing stha waste of time……翻译：1.和他争论没有用。
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3.3.作形式主语替代ing形式
It is no good (use ) doing sth. 该句型中的真正主语是动名词短语，主句中的表 语可以是no good , no use ,useless It is no good learning English without speaking English. It's useless trying to argue with Shylock.
5). 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．．．
4).① 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 是常用过去时态表示虚拟．常译为“是（正是）．．．的 时侯．．．”
It is time that children went to bed.
② It is the first ( second ... ) time that ... “是第一（二）．．．次．．．”。 It is the first time I have been here. = This is the first time I have been here.
③被强调部分为人时，可用who(主格或宾格)和 whom(宾格)代替that，用that也行。 1) It was your father that/whom /who I met in the street yesterday． 2) It was I that/who met your father in the street yesterday．
五、特殊句型 1). It is .... since ...。 It is ( has been ) 5 years since his father died.
2). It is ... when ...。 “当．．．的时候，是．．．” It was 5 o’clock when he came here.
2）.It is +v-ed +that 从句 ① It is said (reported， learned....) that ... 据说（据报道，据悉．．．）“。 It is said that he has come to Beijing.
②. It is suggested ( ordered / demanded/ insisted/ commanded... ) 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．．．）
2. It is 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.
It is suggested that the meeting ( should ) be put off.
3）. It is a pity ( a shame ... ) that ... 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.
it 的用法
㈠ 1.it作人称代词
1.1.it的最基本用法是作人称代词，主要指刚提到 的事物，以避免重复: Zhengzhou is a beautiful city, isn’t it?
1.2.也可以指动物或婴儿(未知性别的婴儿或孩子): Is this your dog？No, it isn’t. 1.3.也可指抽象事物: It was a great surprise to me when he did a thing like that．
3. it 用作形式主语
3.1 代替主语从句 1）It is + adj. +that从句
① It is clear ( obvious， true， possible certain....) that ..... “清楚（显然，真的，肯定．．．）” It is very clear that he’s round and tall like a tree. ②. It is important ( necessary， right， strange， natural...) that ... that 后的从句中要用虚拟语气（should + 动词原形）， should 可以省去，建议记住该句型中的形容词。 It is important that we (should) learn English well.
用It作形式主语的句型： (1) It is adj.＋ to do sth. It is difficult to translate this article.翻译这篇文章 很难。 (2) It is adj. ＋ for/of sb.＋ to do sth. It is important for us to learn English.学习英语对我 们很重要。 It’s kind of you to help me. 你帮助我真是太好了。 (3) It is up to sb. to do sth.“应由某人负责”或 “……是某人的职责”。 It’s up to you to decide whether to take the job or not. 接不接受这份工作由你自己定。
3). It is necessary ( for sb. ) to do sth. 常见的形容词有：① important， necessary， natural ② easy ， safe ，common ，normal ，hard ， difficult ,dangerous ， 等。 在①中的形容词作表语可以用从句改写， 如： It is important for her to come to the party. = It is important that she (should ) come to the party.
4）. 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.（真的病了） It looks as if he were ill. （没有生病） It seemed as if he were dying
㈡.引导词it 1. It is + 被强调部分 + that ...
使用该句型有以下几点请注意： ① 强调句的谓语is或was永远用单数. It was yesterday that I met your father in the street． ②不管被强调部分是哪种状语，只能用 that连接，不得使用where、when等连词. It was in the street that I met your father yesterday．
④强调句中 也要注意主谓一致、人称一致和否定转移 的问题。 It is they who are our friends． It was not until ten o'clock that we got home last night．
要点点拔
⑤注意不要混淆强调句和其他从句。It is was…that…为强调句标志，去掉后仍可组 成一个完整的句子，只是没被强调,而其他 从句一般不具备这一特征。 比较： 1) It was ten o'clock when we got home last night．我们昨晚到家时已十点了。 2) It was at ten o'clock that we got home last night．我们昨晚是在十点到家的。
4. It 作形式宾语. We think it important to learn a foreign language. 该句型中的it 作形式宾语，为了记忆方便我们可称该句型 为"6123结构"。 6指主句中常用的动词： think,believe,make,find,consider,feel； 1指的是形式宾语it； 2指的是宾补的两种形式：形容词或名词； 3指的是真正宾语的三种形式：不定式短语，动名词短语 或that引导的宾语从句。 We think it our duty to clean our classroom every day. He felt it important learning English well. They found it difficult that they would finish their work in two days.
3.2.作形式主语替代不定式
1). It takes sb. ... to do sth. ＂做．．．要花费某人．．＂ It took thousands of people many years to build the Great Wall.