代詞it句型總匯

1、7. It構成的句型小結一、It作形式主語的句型：為使句子平衡，往往把it置于句首作形式主語，而把真正的主語（通常是不定式短語、動名詞短語或主語從句）移至句末。It作形式主語的句型有：1. It takes + （sb.） + sometime / some money + to do sth.做某事花去某人多長時間Just a minute, it won't take me long to change.等一下，我很快就可以換好衣服。It took me three days to prepare for the exam in ati on. 我花了三天準備那次考試。It tak

2、es a lot of money to buy a house like that. 買那樣一幢房子需要很多錢。It took great imagination as well as patience for Annie to teach me to speak.對安妮來說，教我說話需要極大的信心和想象力。2. It is +形容詞+ （for / of sb.） to do sth.某人做某事是 的常用于該句型的形容詞比較多。for sb.的句型 常用于表示事物的特征特點，表示客觀形式的形容詞，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，表示主觀感情或態(tài)度的形容詞，如kind,nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate（考慮周至曲勺）,silly,selfish（自私的）等。It was kind of you to help us.謝謝你對我們的幫助。It is getting harder every day for a lazy man to get a living.懶

4、漢謀生是越來越困難了。What time would it be most convenient for me to call aga in?什么時候我再給你打電話最合適？It ' s very thoughtful arldnd of you to offer me this lovely holiday.你能給我這么美好的假日，實在是想得太周到、友善了。3. It is +名詞+ to do sth .做某事是的常用于該句型的名詞有：manners, duty, fun, good, a great honour 等。As a stude nt, it is bad manners

5、 to come late to class.作為學生，上課遲到是沒有禮貌的。It is our duty to pay taxes to our gover nment.向政府交稅是我們的義務。It is his tur n to take the childre n to school.今天該輪到他送孩子們上學了。4. It is + up to sb. + to do sth.做某事是某人的責任或義務It ' s up to us to give them all the help we can.我們理應竭盡所能地給予他們幫助。It ' s up to you to de

6、cide whether to go or not.應該由你決定是否去。5. It is +名詞+ doing sth.做某事是 用于該句型的名詞有： no good, no use, hard work, a waste of time, a great honour 等。用于 該句型的形容詞有：pleasa nt, useless, sen seless, worthwhile, dan gerous 等。It ' s no use/good (in) crying over spilt/spilled milk.事已至此，后悔也無用。(牛奶已潑，哭也沒用。)It is hard

7、work keeping the grass green at this time of year.這個季節(jié)還使草保持綠色真是不容易。It ' s a waste of time your talking to him.你和他談話是浪費時間。It ' s dangerous playing with fire.玩火是危險的。Is it worthwhile making such an experime nt?做這樣的實驗值得嗎？6. It is +名詞+ that從句用于該句型中的名詞有：a pity, a shame, a fact, an honour, a won de

8、r, a good thing, good news, no wonder 等。慣用句型有：It is com mon knowledge that 是常識It is a surprise that 令人驚奇的是It is a fact that事實是It is no wonder that 難怪 It is a pity that she has made such a mistake.真遺憾，她犯了這樣一個錯誤。It is a thousa nd pity/ thousa nd pities that he missed the cha nee.他錯過了這次機會真是太可惜了。It is n

9、o won der that he has passed the exam in atio n. 難怪他考試及格了。It is a shame that you have to leave so soo n.你必須這么早離開，真遺憾。It is a great honour that he receive that prize.他得到了那個獎真是無上的榮耀。7. It is +形容詞+ that從句 是用于該句型中的形容詞有：clear, obvious, true, certain, important, strange, natural,surprising, fortunate, goo

10、d, wonderful, funny, possible, impossible, likely, unlikely, quite clear, unusual等。慣用句型有：It is necessary that 有必要It is important that重要的是It is obvious that 很明顯It is importa nt that we (should) lear n En glish well.我們學好英語是非常重要的。It is n ecessary that the stude nts (should) remember all the new words.學

11、生記住所有的新單詞是必要的。8. It is + -ed分詞+ that從句 據是的常見的過去分詞有： said, reported, lear ned, announ ced, known, decided, expected, believed, considered, declared, felt, hoped, seen, supposed, thought, understood 等。慣用句型有：It is said that據說It is repo rted that 據報道It is believed that大家相信It is hoped that大家希望It is well

12、known that眾所周知It is thought that-大家認為It is suggested that據建議It has bee n decided that大家決定It must be remembered that 務必記住的是It is reported that ano ther man-made satellite has bee n put into orbit.據報道，又有一顆人造衛(wèi)星被送入軌道。It is said that he has go ne to the USA for further study. 據說他已去美國深造了。It is known to al

13、l that light travels in straight lin es.眾所周知，光以直線運行。It has bee n decided that we should desig n the mach ine ourselves.已經決定我們自己來設計這部機器。9. It +及物動詞+名詞+從句It makes no differenee to me whether it' s foggy or clear.對我來說，天氣有霧或晴朗沒什么關系。It doesn ' t make any differenee to me whether he goes or not.不管

14、他是否去對我都沒有什么影響。10.lt +不及物動詞+ that分句常見的不及物動詞有：seem, happen, Iook, appear, come about, turn out, occur 等。慣用句型有：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.)碰巧他不在哪兒。It doesn ' t matter to me whatsh

15、聲對我來說，他說什么都無所謂。It doesn ' t seem to matter much whether he received the gift or not.他是否接受這件禮物似乎都無所謂。注意：It is demanded / necessary / a pity + that結構中的主語從句的謂語動詞要用should加動詞原形，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作形式賓語的句型1. sb find/ believe/ think/ feel/ consider/ make + it +n/adj +to do 或從句該句型中的it作形式賓語。為了記憶

17、方便我們可稱該句型為“6123結構”。6指主句中常用的動詞：think, believe, make, find, consider, feel ; 1指的是形式賓語it; 2指的是賓補的兩種形式：形容詞或名詞；3指的是真正賓語的三種形式：不定式短語，動名詞短語或 that引導的賓語從句。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. 主語+ hate / dislike / love / like 土 it + when 從句Eg: I hate it whe n people speak with their mouths full.3. 主語土 appreciate 土 it 土 if從句Eg: I really appreciate it if you could help me with my math.4. sb. depend on/count on/rely on/see to負責，確保)/ 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 認為是理所當然的Eg: I take it for gra nted that he will succeed.三、It引導的時間句型 It is+時間段 + since引導的時間狀語從句：(從句用過去時)該句型中從句一般用過去時態(tài)，句意為 自從以來已多久了 ”Eg : It is 5 mi nutes si nee

20、the bus left.公汽開走已有 5 分鐘了 It was/will be + 時間段 + before 引導的時間狀語從句 ： (主從句時態(tài)一致)該句型中，主句謂語動詞be若為肯定式，意為 過多久才；若為否定式時，意為 沒 過多久就。”Eg : It will be 3 hours before he comes back.要過三個小時他才會回來It was 3 hours before he came back.過了三個小時他才回來 It was / will be + 時間點 + when引導的時間狀語從句(it等于時間，時間前無介詞)這個句型中，it代指時間，表示時間點的詞前沒有

21、介詞。Eg : It will be Mon day whe n he comes back.他周一的時候回來.It was Mon day whe n he came back. 他周一回來的.對比：It was on Monday that he came back .(強調句) It + is (about/high) time + (that) sb did/should do sth意為"該是某人做的時候了”，about/high是用于加強語氣，that從句用should或動詞一般過去時表虛擬。亦可轉換成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:意為"這是某人第次做”，注意 time前有序數詞，主句是 is時，從句要用現在完 成時；如果主句用was，則從句須用過去完成時。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引導的強調句：It + is/was +被強調的部分+ that/who從句Eg: It was last week that I met an old friend in the street.It was because he was ill that he did