1、it的用法,一、代詞 人稱代詞it可以用來(lái)代替一個(gè)名詞、短語(yǔ)、句子，以免重復(fù)。 (1)指代剛提到過(guò)的同一事物 （同類；同一） This is my new car. I bought it yesterday. (2) 指動(dòng)物或不考慮性別的嬰兒 Where is the cat? Its under the bed. The baby cried when it was hungry. (3) 在情景中確認(rèn)某人或事物（不知性別的人） Who is it? Its me. (敲門) -Whos it over there? -Its the milkman.,(4) 指代前句或后句所述的情況/事

2、情 He smokes in bed and I dont like it. It would be great if you could join us. (5) 指時(shí)間、距離、天氣或環(huán)境等（非人稱代詞） What time is it? Its seven. Its about 50 kilometers from here to my home. It is snowing. It was very quiet in the garden.,I was disappointed with the film ，I had expected _ to be much better Athat

3、 Bthis Cone Dit,2. Toms mother kept telling him that he should work harder, _ didnt help. A.he B. that C. she D. but it,二、引導(dǎo)詞it (1) it用作形式主語(yǔ):當(dāng)_,_,_作主語(yǔ)時(shí)，常用it做形式主語(yǔ)， Its a pity to refuse. 拒絕是令人遺憾的。 Its no use saying any more about it. 再談這事沒(méi)有用。 Its not known where she went. 她到哪里去了沒(méi)人知道。,不定式,動(dòng)名詞,從句,一 it用作

4、形式主語(yǔ),注： Its no use/ no good/ no pleasure/ useless/ a waste of+doing B. It is said (reported / believed / expected/ accepted) that 據(jù)（報(bào)道，認(rèn)為）. C.It happens (appears, seems)that; It struck me/occurred to me that突然想到. D. It is a pity(no wonder, ) that E. It doesnt matter that 沒(méi)關(guān)系 ; It makes no difference

5、 that 沒(méi)影響 F: Its important(necessary, easy, kind) _/_sb to do sth.,for,of,他說(shuō)什么都沒(méi)關(guān)系。_ 他好像總是對(duì)的。_ 碰巧我當(dāng)時(shí)沒(méi)有帶錢。_ 據(jù)說(shuō)他已經(jīng)入黨了。_,It doesnt matter what he said,It seems that he is always right,It happened that I didnt have money on me.,It is said that he has joined the party.,_ difficult to be in a foreign coun

6、try, especially if you dont speak the language. That is always B. It is always C. It would be always D. That will always be,2. _ one day they will have enough animals to set them free. It is hoped for B. what is hoped that C. As is hoped that D. It is hoped that,(2) it用作形式賓語(yǔ): 當(dāng)_、_、_等用作賓語(yǔ)且其后跟有 _時(shí)，使用形

7、式賓語(yǔ)it，而將真正的賓語(yǔ)移至句末。這類的動(dòng)詞有使役動(dòng)詞， find, make，feel, think, consider, see to it that(務(wù)必)等。 如： I find it easy to get on with her. I think it best that you should stay here.,不定式,動(dòng)名詞,從句,賓補(bǔ),it用作形式賓語(yǔ):,(3)句式 A.喜好： enjoy, like, dislike, love, hate, appreciate it when/ if/that. I dont like it when people talk wit

8、h their mouths full. I appreciate it if you can help me. 他討厭別人用他的自行車。_ 我不喜歡你生氣的樣子。_,B. 固定句式： 我們花費(fèi)10天去那里。 It took _ 輪到你來(lái)回答問(wèn)題了。 Its_turn_ 該吃飯了。Its time to,He dislikes/hates it that people use his bike,I dont like it when you are angry.,us 10 days to go there,your,to answer the question,have dinner,1.

9、We must make _ to the public that something should be done to stop pollution. What is clear B. it is clear C. it clear D. that clear 2. I hate _ when people talk with their mouths full. A. it B. that C. these D. them,1）Its (about / high) time + that-從句.(虛擬) 2）Its first (second) time + that-從句. “某人第

10、幾次做某事”。(從句用完成時(shí)) 3）Its/has been + 時(shí)間段 + since-從句. “自從 有一段時(shí)間了”。 4）Its + 時(shí)間段 + before-從句-“過(guò)多長(zhǎng)時(shí)間才” 5）It is up to sb to do sth. “該由某人做某事” 6)If it were not for/ If it hadnt been for “若 不是因?yàn)椤?7)I owe it to you that I am still alive. “歸功于” 多虧有你我才仍然活著。 8)I took it for granted that he would help us. 我認(rèn)為他會(huì)幫助我們

11、的。 “認(rèn)為理所當(dāng)然” 9)I depend on it that he will go with us. 我還指望著他能和我們一起去呢。,(4) 強(qiáng)調(diào)句 It is/was that/who 注意以下幾點(diǎn)： A. It后用is/was這種單數(shù)形式。 B. 被強(qiáng)調(diào)部分是指人時(shí)，用_/_，被強(qiáng)調(diào)部分指物時(shí)，用_。 C. 被強(qiáng)調(diào)部分是指時(shí)間或地點(diǎn)時(shí)，用that，一般不用_，_之類的。 It is I who am right. 是我對(duì)。,他是死于日本。_ 他是昨天結(jié)婚的。_ 她是住在什么地方?_ 是誰(shuí)教你們英語(yǔ)? _ 他是什么時(shí)候來(lái)的？_,that,who,that,when,where,It w

12、as in Japan that he died,It was yesterday that he got married,Where is it that she lives?,Who is it that teaches you English?,When was it that he came?,The computers in our school are connected to the Internet while those in their school arent. The football players on our team seem to be more energe

13、tic than those on your team.,That/ those一般用于替換有定冠詞的名詞； one/ones用于替換有不定冠詞的名詞。,The style of the building is similar to that of a temple. A CD player made in Japan costs more than one made in Hong Kong.,That/ those一般不帶前置定語(yǔ)，但必須有后置定語(yǔ)。 One/ones都可。 當(dāng)替換詞的后置定語(yǔ)用所有格的of短語(yǔ)或當(dāng)替換詞被 所有格修飾時(shí)，不用one/ones而用that of/those

14、of.,I like the vase better than the one / that in another shop. The windows of your flat are cleaner than those of mine. A grandparents job is easier than that of a parent.,2) it, this 和 that,都可以替代前文已提到的事或情況，細(xì)微差別在于it不如其余 兩者那么強(qiáng)調(diào)。,So she decided to paint the door pink. It upset the neighbours a bit. S

15、o she decided to paint the house pink. That really upset the neighbours, as you can imagine.,當(dāng)前面提到的事物不止一件時(shí)， it通常指最先提到的事物，而 This/that是指最后提到的事物。,We keep the ice cream machine in the spare room. It is mainly used by the children. (指 the machine) We keep the ice cream machine in the spare room. This/ That is mainly used by the children. (指the spare room),This可以出現(xiàn)在它所指代的事物之前；而that則指上文所提到的 事物。,Listen to this! We will have three days off. “A penny saved is a penny earned.” Who said that?,3) I