高中英语语法：It的完整用法精讲打印版
高二英语语法总结：“It”用法及其句型和固定搭配
高二英语语法总结：“It”用法及其句型和固定搭配"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(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 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) 某动作已有多长时间不发生了例It's 10 years that 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(共16张PPT)
Not until I graduated from the university did I see him.
robbed me of near the school last Don’t take it for granted
It was near the school that the man in black robbed me of my mobile phone last year because of my carelessness.
children in poor areas have access Don’t take it for granted
the school last year because of my carelessness.
Who was it that robbed me of my mobile phone near the school last year because of my carelessness.
强调句的特殊疑问句
school because of my carelessness.
When was it that the man in black robbed me of my mobile phone near the school because of my carelessness.
强调句的特殊疑问句
学校规定，考试中作弊的学生将受到严惩。 The school makes it a rule that those
who cheat in the exams will be seriously punished.
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。
高二英语选修6it的用法完整.1ppt课件
the street.
时间状语
强调句的连接词一般只用 that ； 强调人时， 可用who (主语) 或 whom (宾语).
强调句的句型一般为“It was/is+强调部分 +that+其余部分”
强调时间,地点,原因状语时,不能使用 when,where,why 来代替that
二 It was yesterday that I met Tom in the street. (改为一般疑问句)
eg: I bought a dictionary three years ago and I am still using___i_t __ now. I bought a dictionary three years ago but I am going to buy a new __o_n_e___soon.
I need the plastic bags, not the paper_o_n__es__ .
3) that/ those一般不带前置定语，但必须有后置定 语。one/ones都可。当替换词的后置定语用所有格 的 of 短 语 或 当 替 换 词 被 所 有 格 修 饰 时 ， 不 用 one/ones而用that of/those of.
一、 It is/was+ 被强调部分是物 + that+剩余的部分 被强调部分是人 + who/whom/ that +剩余的部分
注意 (被强调部分是:主语，宾语，表语或状语)
我昨天在街上看到TOM. I met Tom in the street
yesterday.
① It was I who (that) met Tom in the
it考点讲义：it用作形式主语和形式宾语的用法归纳总结- 高考英语语法二轮复习专题.docx
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。
高中英语it用法详解课件(共37张PPT)
对比结构中指代前文出现的表特指的可数名词单数或不可数名 词。（复数名词用those指代)
I had a good pen, but I lost it yesterday. I’ll buy one tomorrow.
易误辨析: it / one / that
Sentence patterns: 1. Sb + think + it + necessary + ( for sb. ) to do sth.
+连词+clause
make\believe\feel\ hard\possible\important\usele
find\consider
ss\worth\worthwhile…
A√ . Anyone who B. The boy C. The one D. the
ones
形式宾语
The chairman thought ___ necessary to invite Professor Smith to speak at the meeting. A. that BB. it C. this D. him
Traanslation
形式宾语
I like __C_ in the autumn when the weather is clear and bright. A. this B. that C. it D. one
点拨:这是it作形式宾语的一种特殊用法.少数动词 (如like, love,enjoy, dislike, hate, don't mind, appreciate, feellike等)或包含介词的动词短语(如 see to, depend on,be fond of等)后接宾语从句,必 须先由it担任形式宾语,再接从句.
高中英语it的用法课件完整版共27页文档
16、自己选择的路、跪着也要把它走 完。 17、一般情况下)不想三年以后的事， 只想现 在的事 。现在 有成就 ，以后 才能更 辉煌。
18、敢于向黑暗宣战的人，心里必须 充满光 明。 19、学习的关键--重复。
20、懦弱的人只会裹足不前，莽撞的 人只能 引为烧 身，只 有真正 勇敢的 人才能 所向披 靡。
66、节制使快乐增加并使享受加强。 ——德 谟克利 特 67、今天应做的事没有做，明天再早也 是耽误 了。——裴斯 泰洛齐 68、决定一个人的一生，以及整个命运 的，只 是一瞬 之间。 ——歌 德 69、懒人无法享受休息之乐。——拉布 克 70
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。
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高中英语语法：It的完整用法精讲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，是第三人称单数中性，代表前文已提到过的一件事物。
如：1）That vase is valuable. It's more than 200 years old. 那个花瓶很珍贵，它有200多年的历史。
2）I love swimming. It keeps me fit. 我喜欢游泳，它能使我保持健康。
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's a lovely baby. Is it a boy or a girl? 宝宝真可爱，是男孩还是女孩？it可用来指代团体。
如：4）The committee has met and it has rejected the proposal. 委员会已开过会，拒绝了这项建议。
it用以代替指示代词this, that.如：5）--- What's this? --- It's a pen. —这是什么？—是一支钢笔。
6）--- Whose book is that? --- It's Mike's. —那是谁的书？—是迈克的。
2. 指示代词it，常用以指人。
如：7）Go and see who it is. 去看看是谁。
8）--- Who is making such a noise? —是谁发出这样的吵闹声？--- It must be the children. —一定是孩子们。
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）It is half past three now. 现在是三点半钟。
10）It is six miles to the nearest hospital from here. 这里离最近的医院也有六英里。
11）It was very cold; it snowed and grew dark.天气很冷；天下着雪，渐渐地变黑了。
it也常用来表示一般的笼统的情况。
如：12）It's awful—I've got so much work I don't know where to start. 糟透了——我有这么多工作要做我不知从何开始。
13）How is it going with you? 你近况如何？14）Take it easy. 不要紧张。
it也常用于下列结构：15）It looks as if the college is very small. 看起来这个学院很小。
16）It seems as though our plan will be perfect. 似乎我们的计划很完善。
17）It's my turn. 该轮到我了。
it也常用于某些习惯用语中作宾语，各该习惯用语有具体意义，但it并无具体意义。
如：cab it 乘车catch it 受责，受罚come it 尽自己分内come it strong 做得过分walk it 步行make it 办成take it out of somebody 拿某人出气4. 先行词it.it充当形式主语或形式宾语，本身无意义，只起一种先行引导的作用，先行词不重读。
后面的真正主语或真正宾语通常是不定式结构、-ing分词结构或名词性从句。
（1）用作形式主语18）It is difficult to translate this article. 翻译这篇文章很难。
19）It is getting harder every day for a lazy man to get a living. 懒汉谋生是日益困难了。
20）What time would it be most convenient for me to call again?什么时候我再给你打电话最合适？21）It is no use going there so early. 这么早去那里没有用。
22）It has been a great honour your coming to visit me. 你的来访是我很大的荣幸。
23）It is strange that he did not come at all. 真奇怪，他竟还没来。
24）It doesn't matter what you do.什么都没关系。
在上述诸例中，后置的真正主语可以取代先行it的位置，而出现于句首。
To translate this article is difficult.Going there so early is no use.That he did not come at all is strange.上述结构远不如用先行it结构普通。
此外，也并非所有先行it结构都可作上述转换。
如：25）It seems that John is not coming after all. 似乎约翰终竟不来。
26）It happened that John was the only witness. 碰巧约翰是唯一的证人。
上述两例只能转换为：John doesn't seem to be coming after all.John happened to be the only witness.（2）用作形式宾语27）I found it difficult to explain to him what happened. 我觉得向他解释清发生了什么事很困难。
28）He thought it no use going over the subject again. 他认为再讨论这个问题没有用了。
29）They kept it quiet that he was dead. 他们对他的死保密。
30）We must make it clear to the public that something should be done to stop pollution.我们必须使公众明白应该采取措施制止污染。
5. 分裂句引导词it.分裂句是以it为引导词的强调句型。
它的结构形式是：It+be的一定形式+中心成分+that-/who-从句。
如：31）It was Jane that/who called this morning. 是珍妮今天上午打来电话。
32）It was a parcel that she brought him. 她带给他的是一个包裹。
分裂句是由普通陈述句转换而来的。
通过这种结构可以强调除谓语动词以外的大多数句子成分。
如：33）John gave Mary a handbag at Christmas. 约翰在圣诞节给了玛丽一个提包。
根据上下文和语义意图，说话人可以通过分裂句分别强调主语、间接宾语、直接宾语、状语，使之成为信息中心。
34）It was John that/who gave Mary a handbag at Christmas. 是约翰在圣诞节给了玛丽一个提包。
35）It was Mary that John gave a handbag （to）at Christmas. 约翰在圣诞节是给玛丽提包的。
36）It was a handbag that John gave Mary at Christmas. 约翰在圣诞节给玛丽的是一个提包。
37）It was at Christmas that John gave Mary a handbag. 是在圣诞节约翰给了玛丽一个提包。
分裂句的时态一般应一致，即主句与从句的时态应皆用现在时，或皆用过去时，或皆用将来时。
如：38）It is not I who am angry. 发怒的不是我。
39）It was my two sisters who knew her best. 是我的两个姐妹最了解她。
40）It will not be you who will have to take the blame for this. 对此须受责难的将不是你。
有时分裂句的谓语动词还可以采取复杂形式。
如：41）It may have been at Christmas that John gave Mary a handbag. 可能是在圣诞节约翰给玛丽一个提包。
42）It might have been John who gave Mary a handbag. 很可能是约翰给了玛丽一个提包。
分裂句可以强调多种多样的状语成分。
如：43）It was when she was about to go to bed that the telephone rang. 是在她即将上床睡觉时电话铃响了。
44）It was because I wanted to buy a dictionary that I went to town yesterday. 我昨天是由于想买一本词典而进城的。
45）It was not until his father came back that Tom went to bed yesterday.昨天汤姆是直到他父亲回来才上床睡觉的。
（注意句中not的位置）主语补语通常不可以用作分裂句的中心成分，如在规范英语中通常不说：It is beautiful that she is.It is chairman of the Committee that he is.但是宾语补语是可以这样用的。
如：46）It is the chairman of the committee that they elected him. 他们选他是作委员会主席。
47）It is green that they have painted the wall. 他们把墙壁漆的是绿色。
注：（1）当强调的中心成分为主语，指人时可用连词that或who，如上述例（31）、（34）、（38），强调其余的成分时，连词一律用that。
（2）分裂句中的that与who在非正式文体中可以省略，如：48）It was the President himself spoke to me.是总统亲自和我谈了话。
（省去从句主语who）49）It was the dog I gave the water to. 我是给那条狗水的。
（省去从句的宾语that）50）It was yesterday I first noticed it. 我是昨天开始注意到的。
（省去从句连词that）有时还可省去句首的it is，如：51）A good, honest trade you are learning, Sir Peter! 彼得爵士，你学得是一种很好而诚实的一行啊！（3）分裂句中的被强调部分有时可放在句首，如：52）Now was it that his life was done, and the fate which he could not escape was upon him.就在这时，他的生命完结了，他所逃不脱的命运降临了。