高考英语专题-it句型总结

1、IT句型总结一、        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： it 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        It took me three days to prepare

2、 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 pati

3、ence 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。3.     It is + 形容词 + (for / of sb.) to do sth.  某人做某事是 的常用于该句型的形容词比较多。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。of sb的句型一般用表示人物的性格，品德，

4、表示主观感情或态度的形容词，如kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate(考虑周到的), silly, selfish(自私的) 等。It was kind of you to help us.谢谢你对我们的帮助。It is getting harder every day for a lazy man to get a living.懒汉谋生是越来越困难了。4.     It is + 名词 + to do sth.

5、60;做某事是 的常用于该句型的名词有：manners, duty, fun, good, a great honour等。It is our duty to pay taxes to our government. 向政府交税是我们的义务。5.     It is + ones turn + to do sth.  轮到某人做某事It is his turn to take the children to school.今天该轮到他送孩子们上学了。6.     It is + up to sb. + t

6、o do sth.  做某事是某人的责任或义务Its up to us to give them all the help we can.我们理应竭尽所能地给予他们帮助。 it 代指动名词短语的句型7.     It is + 名词 + doing sth.  做某事是 用于该句型的名词有：no good, no use, hard work, a nuisance, a waste of time, a great honour等。Its no use/good (in) crying over spilt/spilled milk

7、.事已至此，后悔也无用。（牛奶已泼，哭也没用。）It was a nuisance having to wait for such a long time.要等这样久真烦人。8.     It is + 形容词 + doing sth.  做某事真 用于该句型的形容词有：pleasant, useless, senseless, worthwhile, dangerous等。It was pleasant meeting you in London that day.那天在伦敦见到你真高兴。 it 代指名词性从句的句型9.  

8、;   It + be + 名词 + that从句用于该句型中的名词有：a pity, a shame, a fact, an honour, a wonder, a good thing, good news, no wonder等。惯用句型有：It is common knowledge that 是常识It is a surprise that       令人惊奇的是It is a fact that       事实是It is no wonde

9、r that            难怪 It is a pity that she has made such a mistake.真遗憾，她犯了这样一个错误。It is no wonder that he has passed the examination.难怪他考试及格了。It was a stupid thing that he didnt listen to his teacher.他不听老师的话，真蠢。10. It + be + 形容词 + that从句  是

10、用于该句型中的形容词有：clear, obvious, true, certain, important, strange, natural, surprising, fortunate, good, wonderful, funny, possible, impossible, likely, unlikely, quite clear, unusual等。惯用句型有：It is necessary that 有必要It is important that 重要的是It is obvious that 很明显It is important that we (should) learn Eng

11、lish well.我们学好英语是非常重要的。It is necessary that the students (should) remember all the new words.学生记住所有的新单词是必要的。11. It + be + -ed 分词 + that从句 据 是 的常见的过去分词有：said, reported, learned, announced, known, decided, expected, believed, considered, declared, felt, hoped, seen, supposed, thought, unders

12、tood等。惯用句型有：It is said that        据说It is reported that        据报道It is believed that      大家相信It is hoped that        大家希望It is well known that    

13、众所周知It is thought that      大家认为It is suggested that     据建议It has been decided that   大家决定It must be remembered that务必记住的是It is said that he has gone to the USA for further study.据说他已去美国深造了。It has been decided that we should design the machine

14、ourselves.已经决定我们自己来设计这部机器。12. It + 及物动词 + 名词 + 从句It makes no difference to me whether its foggy or clear.对我来说，天气有雾或晴朗没什么关系。It doesnt make any difference to me whether he goes or not.不管他是否去对我都没有什么影响。13. It + 不及物动词 + that分句常见的不及物动词有：seem, happen, look, appear, come about, turn out, occur等。惯用

15、句型有：It appears that 似乎It (so) happens (that)（那么）碰巧It occurred to me that 我突然想起It seems that he is sick. (= He seems to be sick.)看来他似乎有病。It happened that he wasnt there. (= He happened not to be there.)碰巧他不在哪儿。14. It doesnt matter (to sb.) + 从句 （对） 都无所谓It doesnt matter to me what he says.对我

16、来说，他说什么都无所谓。注意：It is demanded / necessary / a pity + that结构中的主语从句的谓语动词要用should 加动词原形， should 可省略。其句型为： (1)suggestedIt is (2)importantthat+ (should) do (3) a pity(1) suggested, ordered, proposed, required, demanded, requested, insisted + (should) do(2) important, necessary, natural, strange

17、 + (should) do(3) a pity, a shame, no wonder + (should) doIt is suggested that we (should) hold a meeting next week.It is necessary that he (should) come to our meeting tomorrow. 二、        It 作形式宾语的句型 it 代指不定式短语的句型15. 主语 + find(make, feel) it + 形容词 (

18、+ for sb.) + to do sth.I find it easy enough to get on with Tom.我觉得与汤姆相处很容易。16. 主语 + find(make, feel) it + 名词 + to do sth.He felt it his duty to mention the fact to Mr. Smith.他觉得把事实告诉史密斯先生是他的职责。 it 代指动名词短语的句型17. 主语 + think + it + 名词 + doing sth.We thought it no use doing that.我们认为做那件事是无用的。

19、18. 主语 + think + it + 形容词 + doing sth.   I dont think it worthwhile taking such trouble. 我想不值得这么费事了。 it 代指名词性从句的句型19. 主语 + find(make, think) it + 名词 + that从句   I consider it a great shame that I didnt pass the examination. 我认为我考试不及格是件非常羞耻的事。20. 主语 + find(make, thin

20、k) it + 形容词 + that从句I think it best that you should stay here.我认为你最好呆在这里。21. 主语 + take it for granted + that从句I took it for granted that you would stay with us.我以为你当然会留在我们这里。22. I hate(like, enjoy, love) + it + when从句    我不喜欢/喜欢 该句型中it用于hate, like, enjoy, love等动词后，充当形式宾

21、语。I hate it when people talk with their mouths full.我很不喜欢人们吃着东西说话。三、        It 用于强调结构句型23. It is/was + 被强调部分 + that 是 的 此结构强调的成分仅限于主语，宾语和状语。It was my father who did the experiment in the lab yesterday evening.It was the experiment that my father did in the lab

22、 yesterday evening.It was yesterday evening that my father did the experiment in the lab.It was in the lab that my father did the experiment yesterday evening.What was it that made you so happy?使你这么高兴的到底是什么？Whom was it that Mr. Smith saw in the college yesterday? 24. It is/was not until + 被强调部分

23、 + that 直到 才 It was not until I had read your letter that I understood the true state of affairs.It is not until I have seen it with my own eyes that I will believe it.25. It is/was not (被强调部分)+ that是 而不是 It is/was not but (被强调部分)+that不是而是It was last week not yesterday that she met your brother in N

24、ew York. 她是在上周而不是在昨天，在纽约看见你弟弟的。It was not last week but yesterday that she met your brother in New York.26. It is/was because + that  是因为 才 It was because he was ill that he had to see a doctor.是因为病了，他才不得不去看医生的。27. It is/was not because but because + that 不是因为 而是因为 才 It is not because she is be

25、autiful but because she has a talent for music that I recommend her.我不是因为她美，而是因为她有音乐天才，才推荐她的。28. It is/was + (被强调部分) + (that) + that 正是 的这个 才  It is the fact that we have spent all our money that we must face.正是我们已花光我们所有钱财的这一事实，才是我们必须面对的。It was that he was chosen that made us very happy.正是他被选中这

26、件事，才使我们非常高兴的。It is in the factory (that) we visited last week that his father works.他父亲工作的地方，正是上周我们参观的那家工厂。四、        It 用于特殊结构句型常用固定句型29. It is + time + for sb. to do sth到时间了; 该到了It is + time(about time, high time) + (that) sb. did sth. 时间已迟了; 早该了It is time fo

27、r you to go to bed. 你该睡觉了。It is time you went to bed.你早该睡觉了。It is (high) time that 后面的从句谓语动词要用过去式或用should加动词原形，但should不可省略。It is time that the children went to bed. (= It is high time that the children should go to bed.)30. It is + the first / second time（表次数）+ that从句   这是第一次 /第二次 该结构中的从句部

28、分，用现在完成时。It is the first time that I have visited the city.31. It is + 一段时间 + since从句 It has been + 一段时间 +   since从句 自从 以来已经 该句型中 " It is since"可代替"It has been since "，意思不变。It is (= has been) five years since we last met.自从我们上次见面以来已经有五年了。It is two years since I became a postgraduate student.我成为研究生已有两年了。注意：since从句中用延续性动词或状态动词的一般