it句型汇总
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．．．）＂。
it的10大句型
10.It is necessary that...
10、It is necessary that we should master a foreign language.我们掌握一门外语是必需的。 这是主语从句，在“It is+少数形容词+that sb should do …”这种句型中，it同样是形式主语，that之后从句 的谓语动词是“should+动词原形”，其中should可 以省略。这样的形容词有 necessary/important/unusual/strange/natural等
2、It is the first time that I...
2、It is the first time that I have written to a foreign pen friend. 这是我第一次给一个外国 笔友写信 这是定语从句，that之后的时态要 用现在完成时态。
3、It was ... when... 3、It was eight when the class began.8点钟开始上课。 这是时间状语从句，强调句型： It was at eight that the class began.
4、It is possible that...
4、It is possible that I will enter this key university. 我上这所重 点大学是可能的。 这是主语从句。It是形式主语。that I will enter this key university是真正主语。还原成： That I will enter this key university is possible.
Every storm runs, runs out of rain. Just like every dark night turns into day.
it的9种主要句式
it的9种主要句式it句型是初中英语中使用频率较多的重点句型之一，为了便于同学们搞好中考复习，现将常见有关it的主要句式归纳如下：1.“It is time for……〞表示“是……时候了〞。
句中介词for后接名词或代词作宾语。
如：It’s time for school.是上学的时候了。
2.“It’s time to do sth.〞表示“是做某事的时候了〞。
此句常与上句替换使用。
如：It is time for us to have lunch.=It is time for our lunch.是我们吃午饭的时候了。
3.在“It seems……〞句中，seem是不及物动词，常作系动词用，有“好似、似乎〞的意思，后面可跟动词不定式、形容词作表语，也可跟从句。
如：It seemed that nobody knew anything about the matter.看来没有人了解这件事。
4.“It’s one’s turn to do sth.〞表示“轮到某人做某事了〞。
如：It’s your turn to play ping-pong.该轮到你打乒乓球了。
5.“It is+形容词+to do sth.〞表示“做某事怎么样〞。
其中it作形式主语，替代后面的不定式to do sth.(真正主语)。
如：It is easy to speak English. 说英语很简单。
6.“It is+形容词+for X.+to do sth.〞意为“对某人来说做某事怎么样〞。
这种结构中的形容词常常是easy，difficult，hard，important，necessary，quick等，这些形容词常与事物的特征有关。
如：It is quite difficult for us to find out who broke the windows.对我们来说，查明是谁打破了窗户是相当难的。
7.“It is+形容词+of X.+to do sth.〞表示“某人做某事怎样〞。
英语语法it的句型
英语语法it的句型下面是小编为大家整理分享的英语语法it的句型，快来看看吧。
四、It 作形式主语的常见句型：1. 替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/ann oy/amaze/bother/concern/frighten/please/anger sb. that (I)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.下载文档润稿写作咨询润稿写作咨询。
it的用法及句型总结
It的用法一、Tell the functions for “it" in each sentence:1、—--What's the weather together？—-—It is fine。
2. It is hard to communicate with him。
3。
I find it hard to communicate with him。
4。
It is Li that who cleaned the classroom。
5。
It is a book。
二、It 用法归纳1,指代it（1）.用作人称代词：指代物、整个句子(2）用作非人称代词2，形式it:（1)作形式主语（2)作形式宾语3，强调it4，特殊句型5。
在答语中指代this/that：1）.—-—Whose book is that? ——-It’s mine.三、特别注意：it, one和that作替代词的用法及区别1。
it代替前面提到的同一事物,该事物既可以是可数名词也可以是不可数名词。
(特指，指代单数，指代物,同名同物）Can I borrow your pen?-Sorry，I'm using it。
2。
one代替前面提到的同类事物中的一个。
该事物只能是可数名词，前面可以有冠词，也可以被this、that或形容词修饰,其后也可以有定语. (泛指，指代可数名词，指代人或物,同名异物）I have a bike。
Do you have one?Eg：（1）.I bought a dictionary three years ago and I am still using______ now。
(2) I bought a dictionary three years ago but I am going to buy a new _______soon. （3)。
that代替前面提到的同类事物中特指的一个。
It句型总汇
It 句型总汇一、it 作形式主语1. It is +形容词+thatIt is clear ( obvious, true, possible, certain…) that …It is very clear that he's round and tall like a tree.2. It is important ( necessary, essential, strange, natural...) that ...that 后的从句中要用虚拟语气（should + 动词原形）It is important that we (should) learn English well.3. It is suggested ( ordered, required ... ) that sb (should) doIt is suggested that the meeting ( should ) be put off.4. It is said (reported, estimated, known, thought…) that …“ 据说（据报道，据估计……）”。
It is said that he has come to Beijing. （=He is said to have come to Beijing ）5. It is a pity ( a shame ... ) that ...从句中用should do ．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.6. It is (high/about) time that ... 从句中用should do/didIt is time that children should go to bed.It is time for sb to do sth It is time for you to go to bed.7. It happens (seems, looks, appears ) that...It (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……8. It takes sb. … to do sth. “做某事要花费某人多长时间”。
It 用法的句型
It 用法的句型1.It was + 段时间+before sb. did sth. “过很久才…”It will be+段时间+before sb. do sth. “将过很久才…”(do代will do)It was not+段时间+before sb. did sth. “不久就…”It will not be+段时间+before sb. do sth. “不久就将…”(do代will do)2.It is +段时间+since sb. did sth. “自从…到现在为止”3.It is/was/will be+时间点+when sb. do/did/do) “当…的时候”4.It/This/That is the first time that sb. has done sth. “截止到现在是第一次…”5.It is (high/about)time that sb. did/should do sth.(不省should) “该到…的时间了”6.1)It is/was+强调部分+that /who+原句其他部分2)Is /Was it+强调部分+that /who+原句其他部分? (划线部分用陈述语气)3)特殊疑问词+was it+强调部分+that /who+原句其他部分? (划线部分用陈述语气)4)It was not until+句子/短语）+that /who+原句其他部分.7. It is no good/no use/fun/a waste of time doing sth.8. It is adj. （指人）of sb. to do sth.It is adj. （指事）for sb. to do sth.9.It takes sb. some time to do sth.10.It is said that …=sb./sth. is said to do/to be doing /to have done （类似said的动词有：reported，thought，announced，known等）11.It is a wonder that…（类似wonder的名词有：an honor, a pity, a shame等）12.find it +adj/n+to do sth./从句（类似的动词有feel, think, consider , make）13.appreciate it+when/if从句（类似词有表示喜怒哀乐，love ,enjoy ,prefer, hate like.）。
It 句型小结
It 句型小结1.It is/was + 被强调部份+ who/ that + 句子的其它成份2. It be/become + adj./n. +(for sb.) + to do…/ that…3. It took/was/will take/will be + 一段时间+ before… 过多久才（就）…, …之后才…此句型中谓语动词多用过去时和将来时.4. It is time + for sth. / to do sth. / that … 该是…的时候了。
后接that从句时谓语动词常用过去式或should+动词原形5. It is the first/second…time (that) … 第一/二次…由于time前有序数词修饰，从句谓语动词常用完成时态，且和主句时态保持一致。
6.It looks/seems as if … 看起来好像…7. It is said/reported/thought/considered/believed/announced/expected… + to do…/that…据说/据报道/据认为/据相信/据宣布/据期望…8. It takes (sb.) some time to do sth. 做某事花费多少时间9. It is no use/good + doing sth. 做某事是没用/好处10. It seems/looks/appears/happens + that … 似乎/看起来/好像/碰巧11. think/make/believe/find/feel/consider+ it + adj./n. + to do/doing/that-clauseThere be句型的小结1. There used/seem/ happen/appear to be2. There is no sense in doing 做某事是没有用的，没有意义的3. There is no use /good doing 做某事是没有用的，没有必要的4. There is no need to do 没有必要做某事5. There is thought/said/reported to be 人们认为有/据说有/据报道有6. There is no doing（口语）不可能…….。
It句型归纳最全总结
It句型归纳最全总结It句型归纳总结I。
It作形式主语的句型1.It is adj (kind。
wise。
careless。
XXX.) of sb to do sth.For example: It is wise of him to make such a XXX wise.2.It is adj (easy。
safe。
common。
normal。
) for sb to do sth.If adj is important。
necessary。
natural。
possible。
strange。
vital。
essential。
etc。
it can be changed to a clause。
and the clause should use should + verb.For example: It'XXX for children to play with fire。
Children playing with fire is very dangerous.It is important for us to learn English well。
It is importantthat we (should) learn English well.3.It is V-ed (reported。
believed。
said。
XXX.) that clause.In this sentence pattern。
if V-ed is reported。
believed。
said。
etc。
it is often translated as "据报道"。
"据认为"。
"据说"。
If V-ed is suggested。
ordered。
demanded。
insisted。
etc。
which means "suggested"。
It 构成的20句常用句型归纳
It 构成的20句常用句型归纳【句型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，表语或状语。
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。
【例】It was about 600 years ago that the first clock with a face and an hour hand was made.【例】It was they that (who ) cleaned the classroom yesterday.【例】It was in the street that I met her father.【句型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。
【例】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.【句型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句型归纳最全总结
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的句型归纳清单-高三英语一轮复习
It的句型归纳一、it 作形式主语的句型（is都可以换成was或其他变形）It is + adj. + that…1.It is obvious that……. 是显而易见的2.It is true that………是真实的3.It is natural that……..是自然的4.It is surprising that……..是令人惊讶的5.It is good that…….是好的6.It is wonderful that………是很棒的7.It is funny that……. 是有趣的8.It is certain that………..是肯定的9.It is probable that………可能的10.It is likely that………可能的11.It is possible that………可能的It is +名词+that…12.It is no wonder that.. 难怪…..13.It is an honor that…很荣幸….14.It is a good thing that…….是好事15.It is a pity that…很遗憾…..16.It is no surprise that…….不令人惊奇It is + 过去分词+ that….17.It is said that.. 据说…..18.It is reported that…据报道….19.It is thought that …普遍认为….20.It is expected that…期盼…..21.It is decided that.. 决定….22.It is announced that.. 宣布….23.It is arranged that…安排….It +动词或动词短语+ that…（所有加s都可以换成其他时态。
）24.It seems that…看起来…..25.It happens that…碰巧….26.It matters that…….关键；….起作用27.It appears that…看起来似乎….28.It turns out that…后来证明…；事实证明….29.It proves that…后来证明…；事实证明….30.It occurs that…碰巧….31.It seems as if…看起来似乎….32.It looks as if…看起来似乎….33.It looks as though…看起来好像….34.It occurs to sb. that…. 某人突然想起…..35.It es to sb. that…某人突然想出….36.It strikes sb. that.. 某人突然想出….37.It hits sb. that…某人突然想出….38.It is well known that…. 众所周知….39.It is well acknowledged that…众所周知….其他句型40.It is no use doing …做…没用41.It is useless doing sth…做…没用42.It is no good doing sth…做…没用43.It takes sb. some time to do sth…. 花费某人多少时间做…..44.It is high time that…是做…. 的时候45.It is the first time that…第一次做……46.It was the second time that…第二次做…..47.I t is +时间段+ since + 从句（一般过去时）自从….以来有多久48.It has been + 时间段+ since +从句（一般过去时）自从….以来有多久49.It + be + 时间段+ before+从句（时态遵守主将从现或前后一致）（肯定）过了多久才….（否定）没过多久就…50.It be + 被强调部分+that……51.It is + adj. + for sb. + to do sth…对某人来说做….怎么样52.It is + adj. + of sb. + to do sth…对某人来说做….怎么样二、it 作形式宾语的句型1.take it that…. 认为….；想…2.hate it when…. 讨厌….3.like it when…喜欢….4.can’t help it if…如果…,我也没办法5.appreciate it if…如果…将感激不尽6.I don’t mind it if…如果…我不介意7.see to it that…确保…;务必….8.count on it that…相信…..9.As someone puts it, ….. 像某人说的那样10.If you don’t feel like it, …. 如果不喜欢,就….11.When it es to….., ….. 当谈到…..12.主语+think/believe/ suppose/consider/feel/ make/keep/…. + it + useless/ nogood / no use….+ doing sth. 某人认为……没用13.主语+ think/believe/ suppose/consider/feel/ make/keep/…. + it + adj./ n. +for/of sb. + to do sth. 某人认为……怎样。
it句型归纳总结大全
it句型归纳总结大全"it"句型是英语中常见的一种句型结构，通常用来强调或者指代特定的事物或情况。
下面是对"it"句型的归纳总结：1. 强调句型：It is (was) + 被强调的部分 + that/who + 其余部分。
例，It is the book that I want to read.（我想读的就是这本书。
）。
例，It was Mary who broke the window.（打破窗户的是玛丽。
）。
2. 虚主语句型：It + be + 形容词 + to do.例，It is important to learn English well.（学好英语很重要。
）。
3. 虚宾句型：It + be + 名词 + to do.例，I find it a pleasure to work with you.（我觉得和你一起工作很愉快。
）。
4. 指代句型：It + be + 形容词 + (for sb.) + to do sth.例，It is easy for me to solve the problem.（对我来说解决这个问题很容易。
）。
5. 天气句型：It + be + adj. + (for sb.) + to do sth.例，It is hot for us to go out.（对我们来说出去很热。
）。
6. 距离句型：It + be + 距离 + to + 地点。
例，It is five kilometers to the station.（离车站还有五公里。
）。
以上是对"it"句型的归纳总结，希望对你有所帮助。
如果你还有其他问题，欢迎继续提问。
It 常见句型
It 常见句型一．It 作形式主语的句型1. It + be + adj + of sb to do sth /.It + be + adj + for sb to do sth常用的形容词有：kind, bad , brave , careless, clever , cruel , foolish , good （好心的）, honest , horrible , kind , lazy , modest , naughty , nice, polite, rude , silly , stupid , wise , right, wrong等。
2.常见的形容词有：① important, necessary, natural ②easy , safe , common , normal , hard , difficult , dangerous , unusual, rare , impossible , pleasant等。
1.你协助我真是太好了。
2.那些小孩玩火真是太顽皮了。
3.这样处理这个事情是对的。
4.你对他说出真相真是太笨了。
5.你满嘴食物地说话真是没有礼貌。
6.小孩子玩火是很危险的。
7..要我按时完成这个任务是很困难的。
8..见到你我真是太高兴了。
9..你必须在离开实验室之前把灯给关了。
10..这里的人们离家不关门是很平常的。
2. It + be + 过去分词+ that 从句：可用于该句型的过去分词还有：known , thought , told , believed , hoped , announced , expected , decided , suggested等，该句型常能够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。
1.据说汤姆已经从外国回来了。
2.据报道有20个小孩在意外中受伤。
a.3.人们希望这座桥能在年底之前完工。
a.4.他成为总统的消息宣布了。
It 的 13 个常用句型及其运用!书面表达必备!
It 的13 个常用句型及其运用！书面表达必备！It 的13 个常用句型及其运用it 虽然并不显眼，但只要运用得当，也能在书面表达中发挥出巨大的作用，给人以高大上的感觉。
本文在归纳其常用的句式结构的基础上着眼于在书面表达中如何恰当地运用it 的相关句型，以达到优化句子，增加文章亮点。
01一、it 句型的归纳：( 一) it 作形式主语的 6 个句型句型1. It is + adj. (=of n.) + for sb. to do sth. / that... 某人做某事是……的。
Will it be convenient for you to start work tomorrow? 你明天开始工作方便吗?It is vital /of great significance for students to take regular exercise. = It is vital /of great significance that students should take regular exercise. 定期进行锻炼这对学生来说太重要了。
句型2. It is a shame / pity that... 很遗憾……(1) It is a shame that some students should scribble and litterrandomly on the campus. 一些学生竟然在校园中乱涂乱画，乱扔垃圾，这真是太不应该了。
(2) It is a pity that I cannot go to see the movie on Saturday evening. 很遗憾，周六晚上我没办法陪您去看电影了。
说明： that 引导的从句为主语从句，从句中谓语动词的语气分两种情况：①表述的内容是事实，用陈述语气 , 如例句 (2) ；②若内容表明说话人的一种语气 / 情感则使用虚拟语气 , 如例句 (1) 。
it常见句型
• 这是我第一次到美国． It is the first time that 这是我第一次到美国． It is the first time that I have come to the U.S. A. It • 并非每个孩子都有这样的机会． is impossible… 并非每个孩子都有这样的机会． It is impossible for each child to have such a chance. • 他发现学习英语很难．find it difficult to 他发现学习英语很难． He found it difficult to learn English. • 该轮到你发言了．It is your turn to 该轮到你发言了． It is your turn to make a speech.
IT 常见句型
1、It is time for sth. / to do sth. / that 句子 、 该是做．．．的时候了． ．．．的时候了 该是做．．．的时候了． 2、It takes sb.some time to do． 、 ． 做某事花了某人多少时间 3、It is / has been some time since＋句子． 、 ＋句子． 自从做．．．多少时间． ．．．多少时间 自从做．．．多少时间． 4、It is/ was＋强调部分＋ that．．． 、 ＋强调部分＋ ．．． 正是．．． ．．．怎么样 正是．．．怎么样
• 只是在解放后，中国人民才开始新的生活． 只是在解放后，中国人民才开始新的生活． It was after liberation that the Chinese people began a new life. • 我们认为他这样做是应该的． 我们认为他这样做是应该的． We think it his duty for him to do so. • 好久我们才知道发生的事情． It was long before 好久我们才知道发生的事情． It was long before we knew what happened. • 你帮助我真是太好了． 你帮助我真是太好了． It is kind of you to help me.
it的用法总结经典句型
it的用法总结经典句型1. “It’s time to do something”（是做某事的时候了）。
比如说：“It’s time to hit the sack!（是该睡觉的时候啦！）”，这就像是火车到了站点，该行动啦！2. “It takes somebody some time to do something”（某人花费多少时间做某事）。
像“ It took her a whole day to finish that painting.（她花了一整天来完成那幅画。
）”，就好像爬山一样，得一步步花费力气上去呀。
3. “It seems that...”（似乎……）。
比如“ It seems that he is angry.（似乎他生气了。
）”，这就如同天空的云，好像是某种形状，但又不是那么确定。
4. “It is said that...”（据说……）。
像“ It is said that there is a monster in that lake.（据说那个湖里有个怪物。
）”，就好像是流传的神秘故事一样吸引人。
5. “Make it +形容词”（使它变得……）。
例如“Let’s make it interesting.（让我们使它变得有趣。
）”，是不是如同给一幅画上色，让它鲜活起来呢？6. “Find it +形容词to do something”（发现做某事是……的）。
像“ I find it difficult to learn this language.（我发现学习这门语言很难。
）”，这和走一条崎岖的路一样，能感受到其中的不容易啊。
我的观点结论：掌握这些关于 it 的经典句型就如同拥有了一把钥匙，可以打开英语表达的各种奇妙之门，让我们在英语的世界里更加自如地交流和表达呀！。
It构成的句型小结
It构成的句型小结一、It作形式主语的句型为使句子平衡，往往把it置于句首作形式主语，而把真正的主语（通常是不定式短语、动名词短语或主语从句）移至句末。
It 作形式主语的句型有：㈠it 代指不定式短语的句型1. It takes + (sb.) + sometime / some money + to do sth.做某事花去某人多长时间Just a minute, it won't take me long to change. 等一下,我很快就可以换好衣服。
It takes five minutes to walk there. 走到那里需要5分钟。
It took me three days to prepare for the examination. 我花了三天准备那次考试。
It takes a lot of money to buy a house like that. 买那样一幢房子需要很多钱。
2.It takes + 名词+ (for sb.) to do sth. 某人做某事需要… …It took great imagination as well as patience for Annie to teach me to speak.对安妮来说，教我说话需要极大的信心和想象力。
It takes time for them to prepare for the great changes that take place in space.他们需要很多时间准备应付太空中所发生的巨大变化。
3.It is + 形容词+ (for / of sb.) to do sth. 某人做某事是… …的for sb. 的句型常用于表示事物的特征特点，表示客观形式的形容词，如easy, difficult, hard, important, possible, impossible, comfortable, necessary, better等。
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it常用特殊句型
1.make/think/consider/find/feel/suppose it + adj./n. + to do sth.
2.enjoy /like/love/hate/dislike it + when/if …喜欢/讨厌……
3. sb would appreciate it if sb would/could do... 如果某人做……, 某人将不胜感激。
4.see to it that…= make sure that... 务必/确保……
5.depend on/rely on/count on it that ...= believe that... 信赖……。
6.take it for granted that…认为……是理所当然
7. bring it to one's attention that ... ……引起某人的注意。
8.owe it to sb. that…把……归功于……。
9.sb. make it a rule to do sth/ that ... 使做某事成为一种习惯
10.... make it possible/ impossible (for sb) to do sth. ……使某人可能/不可能做某事。
11.sb. make it clear that... 表明...
12.It occurred to/ came to/hit/ struck sb that... 某人突然想到……
13.It is necessary/unnecessary/important/possible... (for sb) to do sth. 某人做某事是必要的……。
14.It happened / chanced that ... 碰巧……。
15.It is no use/useless/ no good doing sth. 做某事是没用的/ 好处的。
16.It is a waste of time/money doing sth. 做某事是浪费时间/ 钱.
17.It is worthwhile doing sth./ to do sth. 做某事是值得的
18.When it comes to sth, ... 当谈到/涉及到某事时，……
19.if I can help it,…如果我能做到的话，……
can't help it . 情不自禁，没办法，无法控制或改变。
20.it was + 具体时间+ when从句（一般过去时）某事发生时，时间是……
21.it is/has been + 一段时间+ since 从句（一般过去时）自从……以来有……之久
22. it was + 一段时间+ before从句（一般过去时）过了多长时间就/才……
23.it will be + 一段时间+ before从句（一般现在时）要过多长时间就/才……；
24.it was long + before从句（一般过去时）过了很久才……
25.it wasn’t long + before从句（一般过去时）没过多久就……
26. it will be long + before从句（一般现在时）将要很久才能……
27.it won’t be long + before从句（一般现在时）将不要多久就会……
28.It is/ was + 被强调部分（除谓语以外）+ that / who(人) ... (强调句)
29. it was not until +从句或时间短语+ that+ 句子是直到……才……
30.it is + the序数词+ time + 现在完成时这是某人第几次做某事了
31. it was + the序数词+ time + 过去完成时那是某人第几次做某事了
32. it is (high/about) time + that从句（一般过去时或should+动词原形）某人该做某事了
33.it looks/ seems/ appears as if(as though)...... 看起来好像……
34.It takes sb some time to do sth. 某人花费时间做某事
35. It costs sb. + money + to do sth 做某事花费了某人...钱
36. It is + natural ( strange, important, essential, necessary…) + that-cl (虚拟语气:should +V原形)
37. It is + a pity ( a shame, …)+ that-cl (从句用虚拟语气：should +V原形)
38. It is said (reported, known, thought, believed, announced… ) +that-cl
39. It is suggested ( advised, ordered, demanded, insisted, commanded…) + that-cl ( 虚拟语气)
40. It makes no difference whether ….or not…不论（是否）……没关系、没影响
41. It doesn’t matter/count much whether… or not…不论（是否）…… 不十分重要。
42. It turns/turned out that….结果是……
43. It is up to sb to do sth 做某事由某人决定。
44.It is/was no wonder that... 难怪……。
45.It is kind/clever/cruel ...(adj.修饰sb.) (of sb) to do sth. 做……某人真是太好/聪明/残忍…
46.It must be kept in mind that ... 必须牢记的是……
47.It can be seen from the statistics that ... 从这个统计可看出……
48. It must be pointed out that... 必须指出的是……
49. It has been proved that… 有人已经证实……
50. It is likely/ possible/probable that ... 很可能……。
51. It's convenient for sb to do sth. 某人方便做某事。
52. It's one's duty/ responsibility to do sth. 做......是某人的责任。