it的用法总结

1、it 的用法汇总报告: 用法 英语中 it 的用法汇总报告 it 的用法汇总报告高中 it 的用法汇总报告小学篇一 :it 的用法归纳? Never be afraid of grammar? Collect some examples;? Watch them very carefully;? Find out something in common;? Try to use the rules practise.it 用法完全归纳一、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.

2、 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

3、代替指示代词 this, that 以及复合不定代词 something, anything, nothing 等。如 :“Whats 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

4、get very hot here.这里有时会很热。2.用于某些句型Its time for sth.该做某事了。Its time to do sth. 该做某事的时候了。Its time for sb to do sth.某人该干某事了。Its (about / high) time + that- 从句. 某人该做某事了。 ( 从句谓语用过去式，有时也用“ should+ 动词原形” )It s first (second) time + that- 从句. 某人第几次干某事。 ( 从句谓语用现在完成时 )It s + 时间段 + since- 从句 .自从 , 有一段时间了。It s +

5、 时间段 + before- 从句 .过多长的时间才 ,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:Its very important to remember this.记住这一点很重要。Its hard work climbing mountains.爬山是费劲的事。Its unknown when he will come.他什么时候来还不知道。2.用作形式主语的的重要句型(1) It + be + adj. for (of) sb to do sth某人做某事 ,It i

6、s hard for him to make up his mind.他很难下定决心。It was foolish of her to say such a thing.她说那样的话，真是太蠢了。【说明】介词 of 与 for 的区别是 :of 用于指某人的性格、属性、特征等，介词 for 表示 对象，意为“对 , 来说” (from ) 。(2) It takes sb +时间段 + to do sth. 某人做某事花了 , 时间It takes years to master a new language.要花多年的时间才能掌握一门新的语言。【说明】此句型可以有以下多变种变体 :It to

7、ok me an hour to write the letter. =The letter took me an hour (to write). =I took an hour to write the letter.我写这封信花了一个小时。(3) It is up to sb to do sth.该由某人做某事It s up to you to to make the choice.得由你来作选择。(4) it look (seem, appear, happen, occur) that as if?似乎,It seemed as though he didn t recognize

8、me. 他似乎没认出我来。It happened that I was out when he called.他打电话时我碰巧不在家。(5) If it were not for? / If ithadn t been for? 若不是因为,If it were not for their help, we couldnt have got over thedifficulties. 要不是他们帮助，这些困难我们不克服不了的。四、it 用作形式宾语1. 基本用法 当不定式、动名词、从句等复杂成分用作宾语且其后跟有宾语补足语时，通常会在宾语补 足语前使用形式宾语，而将真正的宾语移至句末。其基本结

9、构为“动词+it+ 宾语补足语 +不定式(动名词或从句 )”。如 :I find it difficult to do the job well.我发现做好这件事不容易。I think it best that you should stay here.我认为你最好住这儿。We think it no use complaining.我们认为抱怨是没有用的。2. 用作形式宾语的几个特殊结构(1) 动词 + it + that- 从句。如 :I like it that you came.你来了，我很高兴。I take it （that） he will come on time.我认为他会准时

10、来的。 You can put it thatit was arranged before.你可以说这是以前安排的。Rumor has it that the defence minister will soon resign.据传闻，国防部长不久就要辞职。【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。 （from）篇二 :It 作形式宾语用法汇总报告It 做形式宾语用法汇总报告当不定式 （短语）、动名词 （短语）或从

11、句在某个句子中作宾语时，为保持句子结构平衡，避 免句式结构的混乱，常用 it 作形式宾语，而将真正的宾语放在句尾，构成“动词， it ，宾语 补足语，不定式 （动名词或从句 ）”结构，也可称作“ 6123 结构”。此时 it 仍只起先行引导作 用，本身无词义。它可以代替三种形式 : 不定式、动名词和宾语从句。it 作形式宾语时，需具备两个条件 : ? ? 足语，具备了这两个条件，形式宾语 it 一定要用。? it 代替不定式短语 think/ find/ feel/ consider/ make/ regard,+ it + 形容词 / 名词 + 不定式短语 如 :?I find it ple

12、asant to work with him.（it 作形式宾语，代替不定式短语 to work with him）?They felt it difficult to finish the work in such a short time.（ it 作形式宾语，代替不定式短语 to finish the work in such a short time）?She thinks it her duty to help us.（ it 作形式宾语，代替不定式短语 to help us）?I think it my honor to be invited to speak here.（ it

13、作形式宾语，代替不定式短语 to be invited to speak here） ?Tom didnt find it difficult to write letters inChinese.（ it 作形式宾语，代替不定式短语 to write letters in Chinese） ?All these noises made it impossible for me to go on with the work.（ it 作形式宾语，代替不定式短语 to go on with the work）? it 代替动名词短语 （ 这只限于少数句型，在多数情况下用不 定式时更多一些 ）如:

14、?The professor considers it no good reading without understanding.?Do you consider it any good trying again?He found it useless（ no use） arguing with him.?He thought it absolutely senseless attempting the impossible.?I don t think it worthwhile going to such a place.? it 代替宾语从句 :如:?We all thought it

15、 a pity that the conference should have been cancelled.?I took it for granted that they were not coming.?I ll see to it that everything is ready in time.“it ”的特殊用法常出现在以下几种结构中。A. 动词， it ， when / if从句。常见于 appreciate, enjoy, like,dislike, love, hate, prefer 等少数动词之后。We would much appreciate it if you co

16、uld do us that favour.I'd prefer it if I didn't have to finish the work.B. 动词+ it + that 从句。常见于 like, take, have, put 等少数动词 之后（it相当于that从句的同位语）。I take it that they will succeed sooner or later.The newspapers have it that some Japanese firms have gone bankrupt.Rumor has it that Mary is gettin

17、g married.I take it that you have been out.Let me come and stay. You can put it that it was arranged before.C. 动词 + it + 介词短语 + that 从句。常见于 bring it toone's attention; owe it to sb; take it for granted 等结构中。I owe it to you that I finished my work in time.Don't take it for granted that they w

18、ill support you.D. 动词 + 介词(短语) + it + that 从句。常见于 answer for, dependon, rely on, insist on, look to, see to, stick to 等结构中。I'll see to it that everything is ready in time.You may depend on it that Tom will help you with your English.I m counting on it that you will come.E. 动词+ it + 过去分词+从句。常见于几个

19、可以带过去分词作宾语补足语的动词之后。I heard it said that that factory was founded in 1995.They haven't made it known where the meeting is to take place.易混用其他句型英语中有一些句型不含 it, 但却易被误用了 it ，常见的有以下句型:? There is something/nothing wrong/ the matter with sb./ sth.如:There is nothing wrong /the ma tter with him. He s just

20、pretending. 他没什么事，他只是在装呢。? There is no doubt about,对, 毫不怀疑There is no doubt that,对, 毫不怀疑如:?There is no doubt about his suitability for the job.毫无疑问，他适合这个工作。 ?There is no doubt about the fact.关于这个事实毫无怀疑。?There is no doubt that he is hard to deal with.毫无置疑他很难对付。? There is no need (for sb.) to do sth.没

21、必要,如:?There was no n eed for him to remai n in Paris.他没有必要继续留在巴黎。 ?There is no need for you to start yet.你现在还不必动身。? There is no/a possibility that, ,没可能 / 有可能(= It is impo ssible/possible that ,)如:?There is a possibility that the train may be late.可能火车要晚点。?There is no possibility that well see him t

22、his weekend. 我们本周末不可能见到他。? There is a chance that , 可能,如:There is a chance that the sick child will get well.这个生病的孩子可能会好起来的。? There be no/ some differences between,and,和,之间没/有区别如:There are some differe nces betwee n the two Ian guages.这两种语言之间有些区别。? After what seemed + 时间如 : After what seemed a very

23、long time, the wounded soldiercame back to life.在经过似乎很长的一段时间之后，那个受伤的士兵苏醒了过来。? There be difficulty/ trouble (in) doing sth.干, 有困难如:There was no difficulty in fin di ng him.找到他没费什么事。篇三:lt用法小结“It ” 用法及其句型和固定搭配，是高中英语语法的重点、难点，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

24、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

25、， 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 :

26、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 d

27、oing/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 secondterm at office.(2)It is adj. +clauseIt's surprising that,(should), ,竟然 , It's apity/shame that,(should),

28、,竟然 , 例 It'simportant that you should apologize to her for your rudeness.(=It's of much importance that you should apologize to herfor your rudeness.)(3) It verb sb. + clause= It is v-ing + clauseIt+surprise/delight/interest/disappoint/worry/disturb/annoy/amaze/bother/concern/frighten/please

29、/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 coupleare said to have gotten div