IT句型大扫描共29张

1、IT 句型大扫描杨柳青一中 徐勇第1页，共29页。1. It is (was) + 被强调部分 + that (用于强调除谓语动词以外的其它成分).= It was I who met him in the street yesterday.I met him in the street yesterday.= It was him that (whom) I met in the street yesterday.= It was in the street that I met him yesterday.= It was yesterday that I met him in the s

2、treet. 第2页，共29页。2. It is (was) not until that (notuntil句型的强调)I didnt realize she was a famous film star until she took off her dark glasses.=It was not until she took off her dark glasses that I realized she was a famous film star.=Not until she took off her dark glasses did I realize she was a famo

3、us film star.第3页，共29页。3. It is clear ( obvious, true, possible, certain.) that . ( It 为形式主语, 真正的主语是由 that 引出的主语从句)例It was obvious that she did not know much English.例It is very clear that hes round and tall like a tree. That she did not know much English is obvious.=That hes round and tall like a tr

4、ee is very clear.第4页，共29页。4. It is important ( necessary, right, strange, natural.) that （形式主语句型，但主语从句中需用虚拟语气，should + 动词原形，并且should可以省略）例It is important that we (should) learn English well.例It is necessary that he (should) remember these words. 第5页，共29页。5. It is said (reported, learned.) that （It为形

5、式主语，真正主语为由that引出的主语从句）例It is reported that another earth satellite has been put into orbit.例It is said that he has come to Beijing. = Another earth satellite is reported to have been put into orbit.=He is said to have come to Beijing.第6页，共29页。6. It is suggested ( ordered . ) that (形式主语句型，从句中使用should

6、 + 动词原形，其中should可以省略）例It is suggested that the meeting( should ) be put off. 例It was ordered that we ( should ) arrive there in two hours. 第7页，共29页。7. It is a pity ( a shame . ) that It为形式主语。如果表示“竟然”等意想不到之义，从句需用 should + 动词原形的形式，其中should 可以省略。例：It is a pity that he is ill.例：It is a pity that such a

7、thing ( should ) happen in your class.第8页，共29页。8. It is time ( about time ,high time ) that 早就到了该做某事的时间了。（用过去时态表示虚拟）例：It is time that the children went to bed. 例：It is high time that we realized the importance of environmental protection.第9页，共29页。9. It is the first ( second . ) time that 从句中需用完成时态(注

8、意前后时态搭配)例：It is the first time (that) I have been here.例：It was the fourth time (that) I had been to New York.例：This is the third time (that) she has been late for school this week.第10页，共29页。10. It is . since 自从已经有多长时间了(注意前后时态的对比)）since + 非延续性动词）since + 延续性动词例：It is ( has been ) 5 years since his fa

9、ther died.（非延续性动词） 例：It was at least ten years since I had had a good drink.（非延续性动词）例：It is two years since he smoked. (延续性动词）live, study, work第11页，共29页。11. It is . when . 该句型中的 when 引导的是一个时间状语从句，主句中的 it 指时间，表语由具体的时间充当。常译为当的时候，是。 例1: It was 5 oclock when he came here. 例2: It was nine oclock last lig

10、ht when he called.(注意与强调式句型的区别: 当去掉It is(was)that后,句子仍然成立时,该句应用强调句型, 否则,应用定语从句句型)例: It was at nine oclock last night that he called.第12页，共29页。12. It be . before . 该句型主句中的 it 指时间, 主句中的时态常是将来一般时或过去时两种时态主句中的表语多是long, not long , 3 days , 2 weeks 等表示时间段的词或短语。常译为之后。例1:It was 3 days before he went to Beiji

11、ng.例2:It will not be long before he finishes his job.例3: It had been 3 days before he realized that he had made a serious mistake.第13页，共29页。13. It happens (seems, looks, appears,occurs ) that. 该句型中it是形式主语，that 引导的是主语从句，主句中的 happen , seem 等词是不及物动词例1: It happened ( so happened ) that he met his teache

12、r in the street last Sunday afternoon.例2: It seems that he will be back in a few days.例3: It suddenly occurred to me that Mr. Zhang might have been there already.= He happened to meet his teacher in the street last Sunday afternoon.第14页，共29页。14. It takes sb. . to do sth. 该句型中的不定式是真正的主语，it是形式主语，句型中的直

13、接宾语是时间。常译为做要花费某人。 例1:It took thousands of people many years to build the Great Wall. 例2: Usually it takes me about two hours to finish my homework every day.第15页，共29页。15. It is no good (use ) doing sth. 该句型中的真正主语是动名词短语，主句中的表语可以是no good , ( not any good ) , no use , ( not any use )。 例1: It is no good

14、 learning English without speaking English. 例2: It is no use crying over spilt milk.第16页，共29页。16. It doesnt matter whether ( if ) . 该句型中whether(if) 引导的从句是真正主语，该句型常译为 不论（是否）没关系。 例1: It doesnt matter if they are old. 例2: It matters a great deal whether she will accept our invitation or not.例3: Does it

15、 matter whether what he said is true or not?第17页，共29页。17. It is kind ( of sb. ) to do sth.该句型中的不定式短语是真正主语，如果不定式的逻辑主语是由 of引起，主句中的形容词必须是能表示逻辑主语特征的形容词。常见的有： bad , brave , careless, clever , cruel , foolish , good （好心的）, honest , horrible , kind , lazy , modest , naughty , nice（有教养的）, polite, rude , sil

16、ly , stupid , wise , wrong（错误的）等。 这个句型可以改写为：sb. is kind to do sth. 例: It is kind of you to say so. = You are kind to say so. 第18页，共29页。18. It is necessary ( for sb. ) to do sth. 如果不定式的逻辑主语是由for引起，主句中的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的形容词。常见的形容词有： important, necessary, natural easy , safe , common , norm

17、al , hard , difficult , dangerous , unusual, rare , impossible , pleasant等。 例1:It is important for her to come to the party. = It is important that she (should ) come to the party.例2: It is impossible for us to master a foreign language in such a short time.第19页，共29页。19. It looks ( seems ) as if . 该

18、句型中it无意义。 as if 引导一个状语从句。常译为，看起来好象如果与事实不相符合，则用虚拟语气例1:It looks as if he is ill.（真的病了） 例2: It looks as if he were ill. （没有生病）例3: It seemed as if he were dying.第20页，共29页。20. We think it important to learn a foreign language. 该句型中的it 作形式宾语。 为了记忆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, c

19、onsider, 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。第21页，共29页。 例1:We think it our duty to clean our classroom every day. 例2: He felt it important learning English well. 例3: They found it difficult that they would finish their work in two days.第22页，共29页。对动词的强调1. 对

20、一般现在时态的强调(do, does)He knows all about it.= He does know all about it.We have some books on geography.= We do have some books on geography.2.对一般过去时态的强调(did)They went to the theater last night.= They did go to the theater last night.IT 惯用短语Make it Hate itGet it Forget it1. I am afraid I cant make it t

21、o the end.2. I hate it when people talk with their mouths full of food.3. - Do you mean that there is only one book left? - You get it.4. - I am sorry for breaking your coffee cup. - Forget it. I have another one.第23页，共29页。1. Was it during the Second World War _ he died?A. that B. while C. in which

22、D. then 2. Is _ necessary to take off our shoes when we enter the lab? A. everyone B. this C. her D. it3. Is _ possible to fly to the moon in a spaceship?now B. that C. it D. man 4. Is _ necessary to complete the design before National Day? A. this B. that C. it D. he5. I dont think _ possible to ma

23、ster a foreign language without much memory work.A. this B. that C. its D. itIT 用法练习第24页，共29页。1. Does _ matter if he cant finish the job on time?A. this B. that C. he D. it2. Toms mother kept telling him that he should work harder, but _ didnt help.he B. which C. she D. it3. _ is a fact that English

24、 is being accepted as an international language.A. There B. This C. That D. It4. It was about 600 years ago _ the first clock with a face and an hour hand was made.that B. until C. before D. when5. I hate _ when people talk with their mouths full.A. it B. that C. these D. them第25页，共29页。1. It was onl

25、y when I reread his poems recently _ I began to appreciate their beauty.until B. that C. then D. so2. It is the ability to do the job _ matters not where you come from or what you are.one B. that C. what D. it3. The Parkers bought a new house but _ will need a lot of work before they can move in.they B. it C. one D. which4. It was not _ she took off her glasses _ I realized she was a famous film star.A. when; that B. until; that C. until; when D. when; then第26页，共29页。 1. It