英语it的用法小结
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【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。
高中英语语法高考二轮复习it考点讲义【精讲版】it用作形式主语和形式宾语的用法归纳总结一、用作形式主语当不定式、动名词、从句等用作主语时,避免头重脚轻,通常在句首使用形式主语厄而把真正的主语放在句子末尾。
如:It is stupid to do such a thing.做这种事真蠢。
It's no good sitting up too late.熬夜没有好处。
It is necessary that he should be sent there at once.有必要马上派他到那里去。
注:类似以下句子中的il也可视为形式主语:It happened that the harvest was bad in 1988.碰巧1988 年的收成很不好。
It seems that she is afraid to tell them about it.似乎她怕将此事告诉他们。
二、用作形式宾语当不定式、动名词、从句等用作宾语且其后跟有宾语补足语时,就应在宾语补足语前使用形式宾语,而将真正的宾语移至句末。
如:I've made it a rule never to hurry,我已养成凡事从容不迫的习惯。
Do you think it possible to root out crime?你认为可以根除犯罪吗?He found il difficult to breathe at high altitudes.他觉得在高空呼吸困难。
注:通常意义的形式宾语主要见于真正宾语为不定式、动名词、从句等且其后跟有宾语补足语时的情形,即用于“动词+it+宾语补足语+真正的宾语”这样的结构,但以下两类形式宾语却比较特殊,其后没有宾语补足语:1.由于介词后通常不能直接跟that从句作宾语,有个别特殊结构就在介词后先接it作形式宾语,再跟that从句。
如:You may depend on it that it is true.你可以相信这是真的。
it 的用法it 除用作代词,还可用作引导词。
其本身无实义,只起一种先行引导的作用。
一. 用作形式主语。
代替由不定式、动名词或从句表示的真正的主语。
如:It will take them more than ten years to complete the Three Gorges Dam.他们要用十多年的时间来完成三峡大坝工程。
It seemed impossible to finish the job on time. 似乎按时完成这项工作是不可能的。
(真实主语是不定式短语)It is difficult to translate this article. 翻译这篇文章很难。
(真实主语是不定式短语)It won’t be easy finding our way home. 寻找回家的路不容易。
(真实主语是动名词短语)It is no use crying over spilt milk. 覆水难收。
(真实主语是动名词短语)It is getting harder every day for a lazy man to get a living. 懒汉谋生是日益困难了。
(真实主语是不定式复合结构for a lazy man to get a living.)It has been a great honour your coming to visit me. 你的来访是我很大的荣幸。
(真实主语是动名词复合结构your coming to visit me)It is said that he will leave for Beijing tomorrow. 据说他明天去北京。
(真实主语是主语从句)It is certain that Tom will do well in the exam. 汤姆会在考试时做得很好,这是确信无疑的。
(真实主语是主语从句)It doesn’t matter what you do. 你干什么都没关系。
考点十五It的用法it作为代词用法非常灵活,可用于代替上文中提到的事物,代替上文中说到的一件事,代替不知情的人(尤其是不知身份、性别和姓名的人)。
也可用于表示时间、天气、距离、计算结果等。
还可用来代替不定式、动名词、从句等,充当形式主语或形式宾语。
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;可以是可数名词,也可以是不可数名词,在句子中既可以作主语,也可以作宾语。
1. 指动物和植物。
☞ Look at that bird. It always comes to my window. 看看那只鸟。
它总是飞到我的窗前来。
2. 指代无生命的东西。
☞This is my watch. It’s made in Switzerland. 这是我的手表。
它是瑞士产的。
3. 代替上文提到过的整个事情。
☞Well, you mustn’t play on the road. It’s dangerous! 哦,你不能在马路上玩。
这是危险的!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。
☞—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。
☞—Look, someone is coming. Who can it be? ——看,有人过来了。
他可能是谁呢?—It may be the headmaster. ——可能是校长。
3. 在回答用指示代词表示人的特殊问句时,常用it指人。
☞—Who’s that? ——那人是谁?—Is it Helen? ——是海伦吗?—Yes, I think you’re right. It’s Helen. ——是的,我想你说对了,是海伦。
三、用于指时间、距离和自然现象等1. 表示时间。
☞—What’s the date? ——今天是几月几日?—It’s the third of March. ——今天是3月3日。
初中英语it的用法初中英语 it 的用法1. 作为代词的用法•指代上文提到的事物或物体:例如,“I have a bag. It is blue.”(我有一个包。
它是蓝色的。
)这里的“it” 代替了上文提到的包。
•指代天气或环境状况:例如,“It is raining outside.”(外面正在下雨。
)这里的“it” 指代天气状况。
•指代时间或日期:例如,“What time is it?”(现在几点了?)这里的“it” 指代当前时间。
2. 作为形式主语或形式宾语•it 用作形式主语:例如,“It is important to study hard.”(努力学习很重要。
)这里的“it” 在句子中充当主语,真正的主语是“to study hard”。
•it 用作形式宾语:例如,“I find it difficult to understand this math problem.”(我觉得很难理解这个数学问题。
)这里的“it” 在句子中充当宾语,真正的宾语是“to understand this math problem”。
3. 表示时间或距离的用法•it + is / was + 时间:例如,“It is 7 o’clock now.”(现在是7点。
)•it + is / was + 距离:例如,“It is 10 kilometers from my home to school.”(从我家到学校有10公里。
)4. 强调的用法•强调特定的时间或环境:例如,“It was in 1998 that I went to Beijing for the first time.”(我是在1998年第一次去北京的。
)•强调特定的事实或情况:例如,“It is true that prac tice makes perfect.”(实践确实是能够使人变得更完美。
)5. 其他常见用法•it 用作不定式的宾语:例如,“I find it difficult to learn English grammar.”(我发现学英语语法很难。
英语it的用法小结
江苏沛县湖西中学鹿俊先 221611
1.实义的it。
实义的it用来指代具体的内容。
1.1.指代上文提过的除人以外的生物或非生物,复数形式为they。
The earth is the planet that we live on. It is the fifth largest planet of the solar system.
This car is not fast enough. It can only do 60 miles an hour.
John is in the school football team. It was reorganized last year.
“Where is the cat?”“It is in the garden.”
“Where are the cats?”“They are in the garden.”
1.2.指代上文提过的性别不明或无须指明性别的小孩。
To feed a child without also educating it is a fault in the father.
What’s matter with the baby? It has been crying.
Her baby is due next month. She hopes it will be boy.
1.3.作主语指代上文提过的人,谓语用以指明该人的身份。
“Who is that at the door?”“It’s the postman.”
The footsteps drew nearer and she saw from behind the curtain who her visitor was. And she opened the door to welcome her. It was Maria Cragg.(文中的主人已知客人是谁,所以在使用It之前就使用了her,但读者依然不明白,所以最后用It 作主语谓语指明该人的身份。
)
1.4.作主语,指代谓语部分所说明的自然现象(如:风、雨、热、冷)、季节、时间、距离、环境等。
It was raining hard when he got off the train.
Is it very cold in your country in December?
It is high time (that) we had a rest.
It was early spring / 1986 when we first met.
It is six months since he lost his job.
It won’t be long before we meet again.
It is only two hours’ ride / eighty miles to Cleveland.
It is very dark / pretty / crowded / noisy /dirty in the room.
1.5.指代上下文或一定语境所表明的情况、事件等。
“I’m trying to change my job.”“You’ll find it difficult.”(it指调换工作这件事。
)
“I’ll have to work all night through.”“It is awful.”(it指你彻夜工作这件事。
)You’ll be in trouble before you know it.(it指你陷入困境这件事。
)
English is very important, and we all know it.(it指英语的重要性。
)
When the factory closes, it will mean 500 redundancies.(it指工厂倒闭这件事。
有些学者把此处及以下四个句子中的it解释为形式主语或形式宾语但却无法解释没有真正的主语/宾语何来形式主语/宾语。
)
I’d appreciate it if you could help me with the work.(it指你帮助我工作这件事。
)
I hate it when people speak with their mouths full.(it指人们边吃东西边讲话这一情况。
)
He likes it when Mary is with him.(it指Mary的陪伴。
)
It is dull when Mary is away.(it指无Mary相陪的状况。
)
“Isn’t it lovely here?”“Yes, I like it here.”(it指这儿的环境。
)
It seems that no one has any objection to the idea.(it指作为话题的事实、情况。
有些学者把此处的it解释为形式主语,但却回避seem不能单独作谓语这一事实或无法解释为什么主语从句不能复位。
)
It happens that his sister is a close friend of mine.(同上)
It must be that I made a mistake about him.(同上)
2.半实义的it。
半实义的it仅在形式上替代某一内容处于某一语法位置。
2.1.作形式主语,替代不定式短语、动名词短语及名词性从句,把这类较长的主语移至句尾,使句子显得匀称。
It is a great pleasure to be working with you.
It is necessary for you to obey the order.
It is no use crying over spilt milk.
It was fortunate that there was a doctor at the spot.
It doesn’t matter what he thinks.
2.2.作形式宾语,替代不定式短语、动名词短语及名词性从句,后接宾语补足语,把这类较长的宾语移至宾语补足语之后,使句子显得匀称。
We consider it foolish of him to meet her.
Jane found it dull working at the kitchen sink all day.
George made it clear that he disagreed.
I take it for granted that you all know this.
3.虚义的it。
it本身无意义。
用于强调结构,强调句子中的某一成分,这一成分往往是说话人认为对方所不清楚的。
It was Jim that / who shot a bear yesterday.
It was a bear that Jim shot yesterday.
It was yesterday that Jim shot a bear.
It may have been at Christmas that John gave Mary a silk handbag.
Was it because he was ill that he didn’t attend the lecture?
Where was it that you found the wallet?
It was not until he came that we started.。