【語(yǔ)法強(qiáng)攻+教師整理】2016屆高考英語(yǔ)總復(fù)習(xí)專題課件：it的用法、常用句型（共22張PPT）

1、it可以作代詞（如人稱代詞、非人稱代詞）和可以作代詞（如人稱代詞、非人稱代詞）和引導(dǎo)詞，也可以用于強(qiáng)調(diào)句式中，還可以用于引導(dǎo)詞，也可以用于強(qiáng)調(diào)句式中，還可以用于一些固定表達(dá)中。一些固定表達(dá)中。一、一、it作代詞作代詞1. 用作人稱代詞，指代：用作人稱代詞，指代：上文提到過(guò)的人、上文提到過(guò)的人、事、物或情況等；事、物或情況等；嬰兒、性別不明或沒必要嬰兒、性別不明或沒必要區(qū)分性別的人或動(dòng)物。此外，區(qū)分性別的人或動(dòng)物。此外，it也可指代未知也可指代未知的人。如：的人。如：In my opinion, life in the twenty-first century is much easier th

2、an it was used to.Someone is ringing the doorbell. Go and see who it is.Its John on the phone.2. 用作非人稱代詞，指時(shí)間、天氣、距離或自用作非人稱代詞，指時(shí)間、天氣、距離或自 然現(xiàn)象等。如：然現(xiàn)象等。如：It is only half an hours walk to the hospital. Its about two kilometers from here to the station.It is raining heavily outside.二、二、it作引導(dǎo)詞作引導(dǎo)詞1. it作形式主

3、語(yǔ)的常用句型作形式主語(yǔ)的常用句型 “It + be +名詞名詞+主語(yǔ)從句主語(yǔ)從句”中從句謂語(yǔ)常用中從句謂語(yǔ)常用“（should +）動(dòng)詞原形）動(dòng)詞原形”。常用于本句型的主。常用于本句型的主要有要有a pity, a shame, no wonder, no accident等。等。如：如：It is a great pity that he should be so greedy. It is a shame that he should attempt to injure the reputation of an honest man. It was no accident that suc

4、h a book should appear in the 18th century. “It + be +形容詞形容詞+主語(yǔ)從句主語(yǔ)從句”中從句謂語(yǔ)常中從句謂語(yǔ)常用用“（should +）動(dòng)詞原形（或完成時(shí)）動(dòng)詞原形（或完成時(shí)）”。常。常用于本句型的形容詞主要有用于本句型的形容詞主要有impossible, strange, surprising等。如：等。如：It is impossible that it should be a mere coincidence. Its strange that she should have been arrested for stealing. I

5、t was surprising that he should have finished writing a novel in only twenty days. “It +動(dòng)詞（動(dòng)詞（+賓語(yǔ)或狀語(yǔ)）賓語(yǔ)或狀語(yǔ)）+主語(yǔ)從句主語(yǔ)從句”。常用于本句型的動(dòng)詞主要有常用于本句型的動(dòng)詞主要有please, happen等。等。如：如：It pleased me very much that he succeeded. It pleases me that he should want to talk with me. It so happened that he had just left for T

6、ianjin. “It +動(dòng)詞的被動(dòng)語(yǔ)態(tài)動(dòng)詞的被動(dòng)語(yǔ)態(tài)+主語(yǔ)從句主語(yǔ)從句”。常用于。常用于本句型的動(dòng)詞主要有本句型的動(dòng)詞主要有accept, admit, allow, announce等。如：等。如：Its accepted that the universe is endless. It is generally admitted that he is a trustworthy person. It was announced that all prisoners would be set free. It was announced that the Prime Minister wo

7、uld speak on television that evening. 2. it作形式賓語(yǔ)作形式賓語(yǔ)根據(jù)句子結(jié)構(gòu)的需要，人們常用根據(jù)句子結(jié)構(gòu)的需要，人們常用it作形式賓作形式賓語(yǔ)，而將真正的賓語(yǔ)放在賓語(yǔ)補(bǔ)足語(yǔ)后。常用語(yǔ)，而將真正的賓語(yǔ)放在賓語(yǔ)補(bǔ)足語(yǔ)后。常用于這種句型的動(dòng)詞有于這種句型的動(dòng)詞有believe, bring, consider, declare, feel, find, make, prove, think等。如：等。如：I find it amazing that anyone would want to listen to that music.I dont think

8、it possible to master a foreign language within 3 months. I found it worthwhile reading this book.it作形式賓語(yǔ)的常用句型：作形式賓語(yǔ)的常用句型：1）動(dòng)詞）動(dòng)詞+ it + if / when從句從句當(dāng)當(dāng)enjoy, like, dislike, love, hate, prefer, appreciate等動(dòng)詞后需要接一個(gè)等動(dòng)詞后需要接一個(gè)if或或when引導(dǎo)的引導(dǎo)的從句時(shí)，需要在動(dòng)詞后接從句時(shí)，需要在動(dòng)詞后接it作形式賓語(yǔ)。如：作形式賓語(yǔ)。如：She wont like it if you a

9、rrive late. He hates it when people use his bike. Id prefer it if I didnt have to do so much work. I would appreciate it very much if you would help me with it. 2）動(dòng)詞）動(dòng)詞+介詞介詞+ it + that從句從句能用于此句型的主要有：能用于此句型的主要有：depend on, answer for, see to。如：。如：You may depend on it that he will turn up in time. I ca

10、nt answer for it that the boy is honest. Ill see to it that all these letters will be sent to the post before twelve.三、三、it用于強(qiáng)調(diào)句型中用于強(qiáng)調(diào)句型中強(qiáng)調(diào)句型可以對(duì)句中除謂語(yǔ)動(dòng)詞以外的成分加強(qiáng)調(diào)句型可以對(duì)句中除謂語(yǔ)動(dòng)詞以外的成分加以強(qiáng)調(diào)。以強(qiáng)調(diào)。四、四、it用在一些固定表達(dá)中用在一些固定表達(dá)中As someone puts it, . 像某人所說(shuō)的那樣像某人所說(shuō)的那樣Please see to it that . 請(qǐng)務(wù)必請(qǐng)務(wù)必When it comes to . 當(dāng)提到當(dāng)

11、提到時(shí)時(shí)It looks / seems as if . 看起來(lái)好像看起來(lái)好像Its time for sth. 該做某事了該做某事了Its time (for sb.) to do sth. （某人）該干某事（某人）該干某事了了It is (high) time that . （早就）該（早就）該Its first / second / third / . time + that . 這是這是某人第幾次干某事（從句謂語(yǔ)用現(xiàn)在完成時(shí)）某人第幾次干某事（從句謂語(yǔ)用現(xiàn)在完成時(shí)）It is / has been +一段時(shí)間一段時(shí)間+ since . 自從自從已已經(jīng)經(jīng)；It wasnt / wont

12、be long before . 沒過(guò)多久就沒過(guò)多久就 / 很快很快Its + 時(shí)間段時(shí)間段 + before . 過(guò)過(guò)時(shí)間才時(shí)間才五、五、it與與one的區(qū)別的區(qū)別兩者均可代替前面提到的事物，區(qū)別是：兩者均可代替前面提到的事物，區(qū)別是：it指的指的是與前面已提到的事物為同一物，此時(shí)的是與前面已提到的事物為同一物，此時(shí)的it等于等于“the +名詞名詞”；而；而one 指的是與前面已提到的事指的是與前面已提到的事物為同一類物，此時(shí)的物為同一類物，此時(shí)的one等于等于“a +名詞名詞”。如：。如：I have a dictionary but Ive lent it to Mary. I hav

13、ent a dictionary; can you lend me one?I. 選用括號(hào)內(nèi)合適的單詞填空。選用括號(hào)內(nèi)合適的單詞填空。1. It was only after she had begun to carry out the task _ (that, when) Mary realized it was extremely difficult to complete. 2. _ (It, As) is our belief that we can make a good life if we work hard.3. _ (It, What) is suggested that

14、parents should pay more attention to their childrens inner world.thatIt It 4. As a matter of fact, _ (that, it) is not failure itself, but what we think of failure and what we do afterwards that counts. 5. Do you still drive your Ford car? No, I sold _ (it, that) two years ago.6. You must keep _ (it

15、, what) in mind that you can never be too careful when proofreading the newspaper.7. Will _ (that, it) be convenient for you to start work tomorrow?itititit8. _ (There, It) is no doubt that the visiting team, which has better players, will win the match.9. I dont think I can work out the maths probl

16、em. Its too difficult. Think it over, and perhaps you will make _ (it, that).There itII. 用用there或或it的正確形式填空。的正確形式填空。1. During my stay there I made _ a rule not to eat fatty foods.2. Id appreciate _ if you could help me find out the reason why the computer doesnt work. 3. I kept telling Mary not to s

17、tay up too late any more, but _ didnt help. 4. _ is an urgent need for qualified teachers.5. I like _ when I am with people like Mr. Ma, who is always willing to help others. itititThere it6. Who is making loud noises outside the window? _ is Tom, my neighbours son.7. _ was no point in staying any l

18、onger.8. Im as good a cook as she is except when _ comes to making pizza.9. I have no idea who _ was that taught me the trick, which helped me to solve the problem.10. _ is a hard job for such a little boy to carry the heavy box upstairs. Lets give him a hand.ItThere ititIt III. 選用正確的詞完成下面短文。選用正確的詞完

19、成下面短文。it, these, that, what, theDo you have a drawer or a box of your special stuff? 1. _ may look like junk to anybody else, but to you 2. _ may be very important. Maybe 3. _ is your set of last years hockey cards, a bottle top you hoped would show the winning number, the smoothest pebbles you coul

20、d find on the beach, and your class photo. If you have kept things like 4. _, then you are a collector! Some people might call 5. _ collection junk, ititIt thesethebut you can call 6. _ MEMORABILIA (MEM-or-a-BILLY-a) (值得紀(jì)念的事物值得紀(jì)念的事物). That sounds more impressive, doesnt 7. _?If you think about 8. _

21、happens when you look through your collection, you might guess what memorabilia are. Sometimes just looking at one of your special things helps to trigger (觸發(fā)觸發(fā)) a memory of how you got 9. _. In most kinds of collections 10. _ is easy to see how the items belong together. ititwhatititIf you collect stamps, anybody can see how they make a collection. 11. _ is not so easy for somebody else to understand how your memorabilia make a collection. Thats why other peo