it的用法[下学期]
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课件27张PPT。Grammar “It” 作形式主语和形式宾语1. 作形式主语, 代替由不定式、动名词或从句表示的真正的主语。
1) It + be + adj. / n. + ( for / of sb.)
to do sth. 在此结构中, 当形容词是表示不定式逻辑主语的特征或属性 (如: wise, bright, kind, nice等)时, 介词用of; 形容词是说明不定式短语 (如: important, possible, necessary, strange等) 时, 介词要用for。 e.g. It is impossible (for so few
workers) to do so much work in
a single day.
It was foolish of her to waste
money on such clothes.
2) It + be + adj. / n. + clause.
e.g. It is certain that Tom will do
well in the exam. 3) It + be + adj.
意义相当于形容词的名词词组+动名词.
e.g. It’s no use trying to repair the
ship. These holes are much
too big.
4) It + take + (sb.) some time / some money + to do sth. e.g. It will take them more than ten
years to complete the Three
Gorges Dam.
5) It + be + said / reported / told等+that-clause.
e.g. It is said that he will leave for
Beijing tomorrow. 6) It + vt. + sb. + that-clause.
e.g. It worried her a bit that her
hair was turning grey. 2. 作形式宾语, 代替由不定式、动词的ing形式或从句表示的真正宾语。
1) S. + vt. + it + adj.
/ n.+(for sb.) to do sth.
e.g. Do you think it possible for
them to send an engineer
there? 2) S. + vt. + it + adj. / n. + doing sth.
e.g. You must find it exciting
working here.
3) S. + vt. + it + adj. / n. + that-clause.
e.g. I think it a pity that you didn’t
try harder. Exercises 1. It took us over?an?hour?______ along?the street.
A. walk B. to walk
C. walking D. walkedB 2. I think it a great honour _____ to visit your country. A. to invite
B. inviting C. having invited ?
D. to?be?invited D 3. Many people now make _______ a rule to buy cards for their friends before Christmas. A. themselves B. it
C. that D. this B 4. _________ is very clear to everyone that he is round and tall like a tree. A. This B. What
C. That D. It D 5. In the United States，bus travel doesn’t cost much as train travel，_______? A. don’t they B. does it
C. do they D. doesn’t it
B 6. Someone is at the door, who is _________? A. this B. that ?C. it D. he
7. ______ raining hard for three hours without stopping. A. It is ? B. It was ?
C. It has been D. It had been CC 8. — Has the boy got his bicycle now? — Yes，the police gave _______. A. him to him ?
B. it to it
C. it to him
D. him to it C 9. It is important _______ their offer. A. reject B. rejects
C. to reject D. rejecting
10. Has ________ been decided when we are to hold the sports-meeting? A. that B. this
C. it D. what CC 11. ----- Did Li Lei call me while I
was out? ----- Yes，it was ________ that
called you. A. him B. he
C. who D. whom B 12. Nothing is wrong with the radio，________? A. isn’t it B. is that ?
C. is it D. isn’t that
13. I don’t think _____ difficult for a Chinese student to master a foreign language within five years. A. that B. it C. too D. very
CB 14. It’s the second time you ______ late this week. A. arrive B. arrived
C. have arrived D. had arrived
15. It will not be _________ we meet again. A. long before ? B. before long C. soon after D. shortly after CA 16. It’s demanded that we ________ there on foot. A. not to go B. don’t go
C. not go ? D. won’t go
17. “It” is often used to ________ a baby. A. mean to B. stick to
C. point to D. refer to CD 18. It was not until 1936 _____ basketball became a regular part of the Olympic Games.
A. that B. when
C. which D. then A 19. ________ you met the Englishman? A. Where it was that B. Who it was that C. Where was it that
D. Where was that C 20. ______ that she has gone to the United States? A. Was it true B. Is it true C. It is true D. It was true B 21. _______ certain that his invention will lead to the development of production. A. That’s B. This is
C. It’s D. What’s
C 22. ______ in 1914 ________ the First World War broke out? A. Was that；that
B. Was that；when C. Was it；that
D. Was it；when C 23. It is important that she _______ with Mr. Williams immediately. A. speak B. spoke
C. will speak D. to speak
24. _________ that there’s another good harvest this year. A. It says B. It is said
C. It was said D. He was said AB 25. It’s no use _______ over spilt milk. A. cry
B. crying
C. that you cry
D. for you to cry B
1) It + be + adj. / n. + ( for / of sb.)
to do sth. 在此结构中, 当形容词是表示不定式逻辑主语的特征或属性 (如: wise, bright, kind, nice等)时, 介词用of; 形容词是说明不定式短语 (如: important, possible, necessary, strange等) 时, 介词要用for。 e.g. It is impossible (for so few
workers) to do so much work in
a single day.
It was foolish of her to waste
money on such clothes.
2) It + be + adj. / n. + clause.
e.g. It is certain that Tom will do
well in the exam. 3) It + be + adj.
意义相当于形容词的名词词组+动名词.
e.g. It’s no use trying to repair the
ship. These holes are much
too big.
4) It + take + (sb.) some time / some money + to do sth. e.g. It will take them more than ten
years to complete the Three
Gorges Dam.
5) It + be + said / reported / told等+that-clause.
e.g. It is said that he will leave for
Beijing tomorrow. 6) It + vt. + sb. + that-clause.
e.g. It worried her a bit that her
hair was turning grey. 2. 作形式宾语, 代替由不定式、动词的ing形式或从句表示的真正宾语。
1) S. + vt. + it + adj.
/ n.+(for sb.) to do sth.
e.g. Do you think it possible for
them to send an engineer
there? 2) S. + vt. + it + adj. / n. + doing sth.
e.g. You must find it exciting
working here.
3) S. + vt. + it + adj. / n. + that-clause.
e.g. I think it a pity that you didn’t
try harder. Exercises 1. It took us over?an?hour?______ along?the street.
A. walk B. to walk
C. walking D. walkedB 2. I think it a great honour _____ to visit your country. A. to invite
B. inviting C. having invited ?
D. to?be?invited D 3. Many people now make _______ a rule to buy cards for their friends before Christmas. A. themselves B. it
C. that D. this B 4. _________ is very clear to everyone that he is round and tall like a tree. A. This B. What
C. That D. It D 5. In the United States，bus travel doesn’t cost much as train travel，_______? A. don’t they B. does it
C. do they D. doesn’t it
B 6. Someone is at the door, who is _________? A. this B. that ?C. it D. he
7. ______ raining hard for three hours without stopping. A. It is ? B. It was ?
C. It has been D. It had been CC 8. — Has the boy got his bicycle now? — Yes，the police gave _______. A. him to him ?
B. it to it
C. it to him
D. him to it C 9. It is important _______ their offer. A. reject B. rejects
C. to reject D. rejecting
10. Has ________ been decided when we are to hold the sports-meeting? A. that B. this
C. it D. what CC 11. ----- Did Li Lei call me while I
was out? ----- Yes，it was ________ that
called you. A. him B. he
C. who D. whom B 12. Nothing is wrong with the radio，________? A. isn’t it B. is that ?
C. is it D. isn’t that
13. I don’t think _____ difficult for a Chinese student to master a foreign language within five years. A. that B. it C. too D. very
CB 14. It’s the second time you ______ late this week. A. arrive B. arrived
C. have arrived D. had arrived
15. It will not be _________ we meet again. A. long before ? B. before long C. soon after D. shortly after CA 16. It’s demanded that we ________ there on foot. A. not to go B. don’t go
C. not go ? D. won’t go
17. “It” is often used to ________ a baby. A. mean to B. stick to
C. point to D. refer to CD 18. It was not until 1936 _____ basketball became a regular part of the Olympic Games.
A. that B. when
C. which D. then A 19. ________ you met the Englishman? A. Where it was that B. Who it was that C. Where was it that
D. Where was that C 20. ______ that she has gone to the United States? A. Was it true B. Is it true C. It is true D. It was true B 21. _______ certain that his invention will lead to the development of production. A. That’s B. This is
C. It’s D. What’s
C 22. ______ in 1914 ________ the First World War broke out? A. Was that；that
B. Was that；when C. Was it；that
D. Was it；when C 23. It is important that she _______ with Mr. Williams immediately. A. speak B. spoke
C. will speak D. to speak
24. _________ that there’s another good harvest this year. A. It says B. It is said
C. It was said D. He was said AB 25. It’s no use _______ over spilt milk. A. cry
B. crying
C. that you cry
D. for you to cry B