代词it句型总汇

1、7. 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：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 took me three days to prepare for the exam in ati on. 我花了三天准备那次考试。It tak

2、es a lot of money to buy a house like that. 买那样一幢房子需要很多钱。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。2. 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，女口 easy, difficult, hard, importa nt, possible,

3、 impossible, comfortable, n ecessary, better等。of sb的句型一般用表示人物的性格，品德，表示主观感情或态度的形容词，如kind,nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate（考虑周至曲勺）,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

4、汉谋生是越来越困难了。What time would it be most convenient for me to call aga in?什么时候我再给你打电话最合适？It ' s very thoughtful arldnd of you to offer me this lovely holiday.你能给我这么美好的假日，实在是想得太周到、友善了。3. It is +名词+ to do sth .做某事是的常用于该句型的名词有：manners, duty, fun, good, a great honour 等。As a stude nt, it is bad manners

5、 to come late to class.作为学生，上课迟到是没有礼貌的。It is our duty to pay taxes to our gover nment.向政府交税是我们的义务。It is his tur n to take the childre n to school.今天该轮到他送孩子们上学了。4. It is + up to sb. + to do sth.做某事是某人的责任或义务It ' s 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 ' s up to you to de

6、cide whether to go or not.应该由你决定是否去。5. 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 waste of time, a great honour 等。用于 该句型的形容词有：pleasa nt, useless, sen seless, worthwhile, dan gerous 等。It ' s no use/good (in) crying over spilt/spilled milk.事已至此，后悔也无用。(牛奶已泼，哭也没用。)It is hard

7、work keeping the grass green at this time of year.这个季节还使草保持绿色真是不容易。It ' s a waste of time your talking to him.你和他谈话是浪费时间。It ' s dangerous playing with fire.玩火是危险的。Is it worthwhile making such an experime nt?做这样的实验值得吗？6. It is +名词+ that从句用于该句型中的名词有：a pity, a shame, a fact, an honour, a won de

8、r, a good thing, good news, no wonder 等。惯用句型有：It is com mon 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 wonder 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 a thousa nd pity/ thousa nd pities that he missed the cha nee.他错过了这次机会真是太可惜了。It is n

9、o won der that he has passed the exam in atio n. 难怪他考试及格了。It is a shame that you have to leave so soo n.你必须这么早离开，真遗憾。It is a great honour that he receive that prize.他得到了那个奖真是无上的荣耀。7. It is +形容词+ that从句 是用于该句型中的形容词有：clear, obvious, true, certain, important, strange, natural,surprising, fortunate, goo

10、d, 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 importa nt that we (should) lear n En glish well.我们学好英语是非常重要的。It is n ecessary that the stude nts (should) remember all the new words.学

11、生记住所有的新单词是必要的。8. It is + -ed分词+ that从句 据是的常见的过去分词有： said, reported, lear ned, announ ced, known, decided, expected, believed, considered, declared, felt, hoped, seen, supposed, thought, understood 等。惯用句型有：It is said that据说It is repo rted that 据报道It is believed that大家相信It is hoped that大家希望It is well

12、known that众所周知It is thought that-大家认为It is suggested that据建议It has bee n decided that大家决定It must be remembered that 务必记住的是It is reported that ano ther man-made satellite has bee n put into orbit.据报道，又有一颗人造卫星被送入轨道。It is said that he has go ne to the USA for further study. 据说他已去美国深造了。It is known to al

13、l that light travels in straight lin es.众所周知，光以直线运行。It has bee n decided that we should desig n the mach ine ourselves.已经决定我们自己来设计这部机器。9. It +及物动词+名词+从句It makes no differenee to me whether it' s foggy or clear.对我来说，天气有雾或晴朗没什么关系。It doesn ' t make any differenee to me whether he goes or not.不管

14、他是否去对我都没有什么影响。10.lt +不及物动词+ that分句常见的不及物动词有：seem, happen, Iook, appear, come about, turn out, occur 等。惯用句型有：It appears that 似乎 It (so) happens (that) (那么)碰巧 It occurred to me that我突然想起 It happened that he wasn' t there. (= He happened not to be there.)碰巧他不在哪儿。It doesn ' t matter to me whatsh

15、声对我来说，他说什么都无所谓。It doesn ' t seem to matter much whether he received the gift or not.他是否接受这件礼物似乎都无所谓。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。(1) suggested, ordered, proposed, required, dema nded, requested, in sisted + (should) do(2) importa nt, n ecessar

16、y, n atural, stra nge + (should) do(3) a pity, a shame, no won der + (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1. sb find/ believe/ think/ feel/ consider/ make + it +n/adj +to do 或从句该句型中的it作形式宾语。为了记忆

17、方便我们可称该句型为“6123结构”。6指主句中常用的动词：think, believe, make, find, consider, feel ; 1指的是形式宾语it; 2指的是宾补的两种形式：形容词或名词；3指的是真正宾语的三种形式：不定式短语，动名词短语或 that引导的宾语从句。Eg: We thi nk it our duty to clea n our classroom every day.He felt it importa nt lear ning En glish well. They found it difficult that they would finish t

18、heir work in two days.2. 主语+ hate / dislike / love / like 土 it + when 从句Eg: I hate it whe n people speak with their mouths full.3. 主语土 appreciate 土 it 土 if从句Eg: I really appreciate it if you could help me with my math.4. sb. depend on/count on/rely on/see to负责，确保)/ answer for it tha t Eg: You may re

19、ly on it that he won ' t be late.You must see to it that the doors are locked before you leave the lab.5. sb. take it for granted tha t 认为是理所当然的Eg: I take it for gra nted that he will succeed.三、It引导的时间句型 It is+时间段 + since引导的时间状语从句：(从句用过去时)该句型中从句一般用过去时态，句意为 自从以来已多久了 ”Eg : It is 5 mi nutes si nee

20、the bus left.公汽开走已有 5 分钟了 It was/will be + 时间段 + before 引导的时间状语从句 ： (主从句时态一致)该句型中，主句谓语动词be若为肯定式，意为 过多久才；若为否定式时，意为 没 过多久就。”Eg : It will be 3 hours before he comes back.要过三个小时他才会回来It was 3 hours before he came back.过了三个小时他才回来 It was / will be + 时间点 + when引导的时间状语从句(it等于时间，时间前无介词)这个句型中，it代指时间，表示时间点的词前没有

21、介词。Eg : It will be Mon day whe n he comes back.他周一的时候回来.It was Mon day whe n he came back. 他周一回来的.对比：It was on Monday that he came back .(强调句) It + is (about/high) time + (that) sb did/should do sth意为"该是某人做的时候了”，about/high是用于加强语气，that从句用should或动词一般过去时表虚拟。亦可转换成It + is+ time +(for sb )to do sth.E

22、g : It ' s (high/about) time (that) we handed /should hand in our homework.(5) It / This / That +is+ the first(second)time + that sb has done sth:意为"这是某人第次做”，注意 time前有序数词，主句是 is时，从句要用现在完 成时；如果主句用was，则从句须用过去完成时。Eg : It is the third time that I have seen the film.That was the sec ond time that I have bee n there.四、It引导的强调句：It + is/was +被强调的部分+ that/who从句Eg: It was last week that I met an old friend in the street.It was because he was ill that he did