英语it的用法ppt课件

5、作形式主语 a. It is necessary for us to learn English well. b. It is a waste of time arguing with him. c. It has not been decided whether some soldiers will be sent to Iraq. 6、作形式宾语 a. I consider it necessary to master a foreign language. b. We found it useless learning a theory without practice.
12. When was _____ he made up his mind to take a C trip to Europe? A. it B. that C. it that D. that is 13. He felt ___ to work for human rights and progress. A A. it his duty B. his duty C. that is a duty D. that is his duty 14. Was it during the Second World War ___ he died? A A. that B. while C. in which D. then 15. The Parkers bought a new house but ____ will B need a lot of work before they can move in. (MET 01) A. they B. it C. one D. which 16. It is the ability to do the job ____ matters not where B you come from or what you are. (2000) A. one B. that C. what D. it
7、强调源自文库: It is / was … who / that …
I hid the ball behind the door yesterday.
主 谓 语 语 宾 语 地状 点语 时状 间语
1) It was I who hid the ball behind the door yesterday. 2) It was the ball that I hid behind the door yesterday. 3) It was behind the door that I hid the ball yesterday. 4) It was yesterday that I hid the ball behind the door. 5) I did hide the ball behind the door yesterday. He likes skating very much. 1) It is he who likes skating very much. 2) It is skating that he likes very much.
4、表示时间、季节、距离、自然现象等 a. It is half past eight now. b. It is October 1 today. It is National Day. c. It is midsummer. It’s very hot outside. d. It is twenty minutes’ walk to the cinema. e. It is blowing very hard. f. It is very quiet at night in the countryside.
1. We found ____ interesting to talk with foreigners. it 2. It was in 1980 ______ he was born. that 3. This experiment will make ______ possible to it discover the secret in space. 4. ---Listen! Someone is unlocking the door. ---___ must be your father coming back from BJ. It 5. It is a pity _____ you didn’t see the film star. that 6. It was in this shop ______ I bought the computer. that 7. It is _____ , not you, who am going to do the job. I 8. Where was ____ that he found the wallet? it
9. Was it yesterday ______ he lost his bike? that
D 1. It was in 1941 _____ the great writer was born. A. when B. where C. which D. that B 2. I think it is you who ______ wrong. A. is B. are C. am D. be 3. It is I who _____ going to help those poor children. D A. is B. are C. be D. am 4. Don’t you think ____ wrong wasting your time? A A. it B. that C. this D. how 5. It was in this factory _____ my father used to work. B A. it B. that C. where D. which 6. ____ won’t be long before we meet again. B A. This B. It C. That D. Which
10. It was about twenty years ____ she waited for him. D A. since B. before C. after D. that 11. It will be twenty days ___ they complete the work. B A. since B. before C. after D. that
It 的用法
1、代替前文提到的事、物 a. My dictionary is missing. I can’t find it anywhere. b. The elephant is very strong. It is from Africa. c. Tom has failed in the exam. Have you heard about it? 2、指人但不知道其性别 a. ---Who is it? ---It’s me. b. When I first saw the baby, it was in a big basket under a tall tree. 3、代替this, that a. ---What’s this? ---It’s a computer. b. ---Whose bicycle is that? ---It’s hers.
7. I find ___ difficult to complete the task on schedule. B A. that B. it C. very D. myself 8. It was ____ late in the evening that her husband D arrived home. A. after B. when C. till D. not until 9. She wants to know if it is 600 miles an hour ____ B the newest planes can go. A. which B. that C. it D. how
17. ---Why don’t we take a little break? ---Didn’t we just have ____ ? C A. it B. that C. one D. this
18. I hate ____ when people talk with their mouths full. A A. it B. that C. these D. them 19. Tom’s mother kept telling him that he should work harder, but _____ didn’t help. D A. he B. which C. she D. it 20. I don’t think ____ possible to master a foreign D language without much memory work. A. this B. that C. its D. it 21. Is ____ possible to fly to the moon in a spaceship? C A. now B. that C. it D. man