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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．．．）＂。
IT 作为主语的句子类型主要包括以下几种：1. 一般陈述句：例如：IT is a beautiful day.（今天是个美好的一天。
）2. 疑问句：例如：What about IT?（怎么样？）3. 否定句：例如：IT isn't working.（它没在运作。
）4. 祈使句：例如：IT needs fixing.（它需要修理。
）5. 感叹句：例如：How amazing IT is!（多么惊人啊！）6. 一般疑问句：例如：Does IT work?（它运作吗？）7. 特殊疑问句：例如：Which IT do you mean?（你指的是哪个？）8. 选择疑问句：例如：Do you want IT or that one?（你要哪一个，这个还是那个？）9. 被动句：例如：IT is being repaired.（它正在被修理。
）10. 宾语从句：例如：I think IT is a good idea.（我认为这是个好主意。
）11. 状语从句：例如：However IT happens, we should be prepared. （无论怎样，我们都应该做好准备。
）12. 名词性从句：例如：IT is obvious that he is talented.（他很天赋。
）13. 条件句：例如：If IT rains, we will stay indoors.（如果下雨，我们就在室内活动。
）14. 虚拟语气：例如：What would IT be like if IT were summer? （如果现在是夏天，它会是什么样子？）15. 比较级和最高级：例如：IT is the best solution.（这是最好的解决方案。
）16. 倍数表达：例如：IT costs twice as much as that.（它的价格是那个的两倍。
）17. 并列句：例如：IT rains and snows simultaneously.（雨和雪同时下。
含it的9个常用特殊句型1. It appears/ happens/ seems/ says that…It seems that he is always correct. 他好像总是对的。
It happened that I had no money with me. 碰巧我当时没有带钱。
2. It is said/ reported/ believed/ understood that…It is said that he has joined the Party. 据说他已经入党了。
3. It doesn’t matter…It doesn’t matter what he says. 他说什么都没关系。
4. (It is) no wonder( that) …It’s no wonder he is not hungry; he has been eating sweets all day. 难怪他不饿，他整天在吃糖果。
5.It is a waste of time /money doing sth.It’s a waste of time your talking to him. 你和他谈是浪费时间。
6. It makes no/mush difference…It’s doesn’t make much difference my being there. 我在不在那儿没有什么影响。
7. it takes sb. some time to do sth.It took me nearly an hour to work out the problem. 花了我差不多一个钟才做出那道题.8. It’s one’s turn to do sth.It’s my turn to clean the classroom. 是轮到我打扫教室的了。
9.If it were not for…If it were not for your help, I would still be homeless. 若不是你帮忙，我现在还是无家可归。
it句型造句IT句型，即It sentence pattern，是英语语法中常见的一种句型结构，它以it作为主语，其后接一个谓语动词和一个宾语或补足语。
这种句型在英语中常被用来强调某个动作、状态或事物的存在、发生或发展。
下面是一些使用IT句型的例句：1. It is important to have a balanced diet to maintain good health.（保持饮食均衡对于保持健康很重要。
）2. It was raining heavily, so we decided to stay indoors.（当时下着大雨，所以我们决定待在室内。
）3. It seems that the company is facing financial difficulties.（看起来公司面临着财务困境。
）4. It is believed that regular exercise can improve mental well-being.（人们认为定期锻炼可以改善心理健康。
）5. It became clear that the project would require more resources to be completed on time.（很明显，这个项目需要更多的资源才能按时完成。
）6. It is not easy to master a foreign language without consistent practice.（如果没有连续不断的练习，要掌握一门外语并不容易。
）7. It surprised me to see how quickly they adapted to the new environment.（看到他们如此快速地适应了新环境，我感到很惊讶。
）8. It is essential for parents to provide emotional support to their children.（为孩子提供情感支持对于父母来说至关重要。
It 引导的句型结构1． It + be + adj. ( for sb.) to do sth. “〔某人来〕，做某事很⋯〞. It is important for us to learn English well. 我来，学好英很重要。
Exercises璐西来，解道数学很简单。
安娜来，个包太沉了。
2．It + be + adj. + of sb. to do sth. “某人做某事很⋯〞. It was foolish of her to waste money on such clothes.她真蠢，把都花在的衣服上。
Exercises你人真好，帮我个忙。
他真残忍，死了那么多无辜的人。
你真明，能想出么一个好法。
3. It + be + adj./n. + that ⋯“. It is very important that we (should) pay more attention to spoken English.重要的是，我更加重英口。
Exercises沮的是，他并没有通考。
激的是，支球最得了比的利。
4．It + be + n. +. It is no use crying over the spilt milk. 覆水收。
Exercises吸烟没有任何益。
5． It + be + some time + since⋯“从⋯ 起已有多〞 It is tenyears since he had left China他.走开中国已十年了。
6． It +be + (said, reported, believed⋯) + that⋯.It is said that he will leave for Beijing on Tuesday.7． It + be + time + ( that )⋯. 是做什么的候了。
It is time we get up.8. It takes (sb.) some time + ( for sb.) to do sth.It took three weeks for us to finish the work.9.It + be + the first/second⋯+ time + (that)⋯It’s the first time I’ve been here.It was the first time she’d been at a summer school.。
⾼考英语：关于It的20个常⽤句式 掌握⼀些⾼级句型对于和作⽂都有很⼤的帮助，下⾯YJBYS⼩编为⼤家搜索整理了关于It的20个常⽤句式，欢迎参考学习，希望对⼤家备考有所帮助!想了解更多相关信息请持续关注我们应届毕业⽣培训⽹! 1.It is+被强调部分+that... 【说明】该句型是强调句型，将被强调的放在前⾯，其他部分置于之后，强调的主语如果是⼈，可以⽤来替换。
如果把这种句型结构划掉后，应该是⼀个完整的句⼦，这也是判断强调句型与其他从句的⽅法。
【例句】 It was they that /who cleaned the classroom yesterday. It was in the street that I met her father. 2. It is not until +被强调的部分+ that... 【说明】该句型译成汉语“直到……才”，可以说是的强调形式。
【例句】 It was not until she took off her sun glasses that I realized she was a film star. =Not until she took off her sun glasses did I realize she was a film star. =I didn’t realize she was a famous film star until she took off her sun glasses. 3. It is clear (obvious, true, possible, certain) that…. 【说明】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结构。
【例句】 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… 【说明】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。
中考英语it的常考句型及知识点归纳（附练习题）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。
It'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”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”在英语中经常用作形式主语，尤其是在主语从句中。
形式主语用于表示主语从句，即一个句子作为主语，而“it”是这个句子的形式主语。
以下是几个使用“it”作为形式主语的常见句型：
1. It is + 形容词+ that + 主语从句
例如：It is clear that he has made a mistake.
解释：在这个句型中，“it”是形式主语，“that”后的句子是真正的主语。
2. It is + 名词+ that + 主语从句
例如：It is a fact that the earth is round.
解释：这个句型与上一个相似，但形容词被替换为名词。
3. It + 动词+ 主语从句
例如：It happened that he was late for the meeting.
解释：在这个句型中，“it”是形式主语，动词是主语从句的谓语。
4. It + be + 时间/距离+ before + 主语从句
例如：It will be two years before we meet again.
解释：这个句型用于表示在某个时间或距离之后会发生某事。
5. It is/was + 被强调部分+ that + 主语从句
例如：It was yesterday that he met his friend.
解释：这个句型用于强调某个时间或部分。
这些只是使用“it”作为形式主语的一些常见句型。
在英语中，还有其他更复杂或特定的用法。
It 句型归纳总结I．It 作形式主语的句型①It + be + adj (kind , wise , careless, clever…) + of sb to do sthEg: It is wise of him to make such a decision.他做出这样的决定是明智的。
②It + be + adj(easy , safe , common , normal …) + for sb to do sth该句型中adj若为important, necessary, natural, possible, strange, vital, essential等可改为从句,从句用should+动词原形。
.Eg: It’s very dangerous for children to play with fire.It is important for us to learn English well. (= It is important that we (should) learn English well.)③It + be +V-ed( reported, believed, said, suggeste d…) + that 从句该句型中：⑴若V-ed为reported, believed, said等常译为“据报道”，“据认为”，“据说”。
⑵若V-ed为suggested, ordered, demanded, insisted等表示“建议”,“命令”的词，从句要用虚拟语气(should)+动词原形。
Eg: It is suggested that the book (should) be revised.It’s said that Tom has been back from abroad. (=Tom is said to have been back from abroad.)④It + be + n (a pity, a shame, a fact , good new s…) + that 从句:该句型中，从句一般用(should) + 动词原形，表示出乎意料，常译为＂竟然＂。
It句型--高考重点It 引导的句型虽不是高考的热点，但近三年全国各省市试题中经常出现，我们不能疏忽。
考查的重点主要有三个方面：1.it引导的强调句型；2. it作形式主语或者形式宾语；3. it 和since、before、when等连用。
为了提高同学们的应变能力，现对it引导的一些常见句型归纳和总结如下：1。
It + be + 时间+ since-clause主句多用一般现在时，从句用一般过去时，如果表示过去的情况，主句用一般过去时，从句用过去完成时，或主句用过去完成时，从句用一般过去时。
It is three years since his father passed away . (从现在算起)It was 10 years since they married . (从过去算起)It had been fifteen years since she left Shanghai . (从过去算起)30 years has passed since we joined the Party . (从现在算起)2. It + be + 时间+ before-clause这句型中的时间一般为表示一段时间的词语(如：long years , months , weeks , days ,hours , minutes ) ，主句中的谓语动词用肯定式，意为"过多长时间才......"。
主句的谓语动词是否定式时，意为"没过多长时间就......"、“不久就……”。
主句的时态可用过去时was/wasn’t或将来时will be/won’t be；用was 时，before从句的动词用一般过去时；用will be 时，before 从句常用一般现在时。
It was not long before she learned those poems by heart . 她没过多久就背会了那些诗歌。
It was long before the police arrived .过了很久警察才来。
It will be hours before he makes a decision . 要过好几个小时他才会作出决定。
It will not be hours before meet again 要不了几个小时我们还会再见面的----Did your manager phone you again the next day ?----No, it was a fortnight before he gave me a second call . 没有，过了两周他才再次打电话3. It + be + 时间+ when-clause这句型中, it 指时间，而且表示时间的词语前没有介词(时间一般为具体时间)。
主句中的谓语动词和从句中的谓语动词在时态上一般是一致的，主句是will be，when从句用一般现在时代替将来时。
例如：It was already 8 o’clock when we got home .It w as the next morning when we finished our work .It will be midnight when they get there .4. It + be + 被强调成份+ that/who-clause强调句型。
It was two years ago that he made an important invention .(原句是：He made an important invention two years ago . )It was at 5 o’cl ock that he practiced playing the violin in the morning .(原句是：He practiced playing the violin at 5 o’clock in the morning . )比较：It was 5 o’clock when he started in the morning 定语从句注意：It is/ was not until +被强调成份+thatI didn’t realize she was a famous film star until she took off her dark glasses .=Not until she took off her dark glasses did I realize she was a famous film star .=It was not until she took off her dark glasses that I realized she was a famous film star .What is it that he asks for?他要的东西究竟是什么？5. It + be + time/high time / about/really time + that从句虚拟语气结构不管主句中用的是is 或was ，that从句都须用动词的过去式或should + 动词原型(但不及用过去式普通)，在time之前有时可加上high或about 以加强语气。
It is time(that)we handed in our exercises .(= It is time that we should hand in our exercises .)It is high /about time (that ) she wrote a letter to her boyfriendI think it’s really time that we should end our discussion.我想我们该结束这次讨论了6. It / This / That +is +the first(second , third …) time + that从句这句型表示截止到说话时为止的某人的一种经历，关键是注意time前有序数词，主句是is时，从句要用现在完成时；如果主句用一般过去时was ，则从句须相应地用过去完成时。
This is the first time (that) these Europeans have visited the Great Wall .It was the fifth time (that)I had paid a friendly visit to Africa .7. It + be + 过去分词known , thought , told , believed , hoped , announced ,expected , decided , + that 从句该句型常可以转换成含有宾语从句的复合句或者含有不定式作主补的简单句。
Its said that Tom has come back from abroad . →People say that Tom has come back from abroad . →He is said to have come back from abroad .注意：It is ordered /commanded/suggested / advised/demanded/required /insisted/requested that .(should) V原形It is suggested that the meeting (should ) be put offIt was ordered that we ( should ) arrive there in two hours .8. It + be + 名词词组a wonder an honor , a good thing , a fact , a surprise , good news + that 从句It is a fact that…事实是……It is a question that………是个问题It is good news that………是好消息It is common knowledge………是常识注意：It is a pity / a shame that (should) V原形表示出乎意料“竟然”，没有这种意义时，不用虚拟It is a pity that such a thing (should ) happen in your class.It is a pity that he is ill now .9. It + be + 形容词+ that 从句It is likely that he will come to see me tomorrow.注意：It is important / natural / necessary/strange that从句建议记住该句型中形容词, that 后应用(should) +V原形It is necessary that he (should) remember these words .10. It + seems / appears / happens /looks+ that 从句It follows that…由此可见……It turned out that…结果是……It seems that he enjoys pop songs very much .看来他非常喜欢流行歌曲。
It appears that Tom might change his mind .看来汤姆会改变主意。
It happened that I went out that day .碰巧我那天外出了注意：It looks / seems as if +从句It looks as if he is ill . (真实)It looks as if he were ill .( 虚拟)It seems as if he were dying . (虚拟)11. It is known (not decided , not made clear , found out , discussed , being discussed , being considered , a question , uncertain等) + 连接代词或连接副词引导的从句12. It doesn’t matter(doesnt matter too much , doesn’t make too much difference等) + 连接代词或连接副词引导(whether / if ..)的从句。
