Unit 4 Global warming The use of it (2)

课件34张PPT。The use of it (2)在上一单元我们已经讲解了
it在句中可以用作许多成分,
在本单元我们用图表的形式
进行整理使同学们对it的用
法有系统的掌握。我们用图表的形式对it的用
法进行的归纳, 相信同学们
已经对it的用法有了更清晰
的认识。
接下来我们对it在强调句中
的用法做一小结。用在强调句型中, 为了强调句子的
某一成分(通常是主语、宾语或状语),
常用结构:
It is / was ＋被强调部分＋that (who) …
I met Tom in the street yesterday． ① It was I who (that) met Tom in the street yesterday.
② It was Tom that I met in the street yesterday.
③ It was in the street that I met Tom yesterday.
④ It was yesterday that I met Tom in the street.主语宾语时间状语地点状语
1. Peter lent us the money.
2. They want money.
3. All this happened on Monday.
It was Peter who lent us the money.It is money that they want.It was on Monday that all this happened.根据划线部分把下列句子变成强调句。4. I didn’t hear from her until last
summer.
5. Why does everyone think I am
narrow-minded？ It was not until last summer that I heard from her.Why is it that everyone thinks I am narrow-minded？口诀：
代词 it 本意它, 既可指这又指那;
时间天气均可指, 谈到距离也用它;
假主假宾均可作, 强调句型跟that。it在句子中可以作如此多的成分,那么我们如何区分it在句中的不同成分呢?1. It is two years __ I joined the army.
A. before B. since
C. that D. after
2. It was two years ___ I joined the army.
A. before B. since
C. that D. afterPractice3. It was not until 1920 ____ regular radio broadcast began.
A. while B. which C. that D. since
4. ___ is a fact that English is being accepted as an international language.
A. There B. This C. That D. It5. It was about 600 years ago ___ the first
clock with a face and an hour hand
was made.
A. that B. until C. before D. when
6. I hate ____ when people talk with
their mouths full.
A. it B. that C. these D. them 7. The Parkers bought a new house but _____ will need a lot of work before they can move in.
A. they B. it C. one D. which
8. ____ no need for us to discuss the problem again since it has already been settled.
A. It has B. There has
C. It is D. There is9. ____ was in 1979 ___ I graduated from the university.
A. That; that B. It; that
C. That; when D. It; when
10. What a pity my new computer doesn’t work! ____ must be something wrong with it.
A. It B. There C. This D. That11. I like ____ in the autumn when the weather is clear and bright.
A. this B. that C. it D. one
12. Someone is knocking at the door, but who can ___ be?
A. one B. he C. she D. it13. A knock on the door made him look up. But ___ was only the manager.
A. this B. that C. she D. it
14. Someone is ringing the doorbell. Go and see ____ .
A. who is he B. who he is
C. who is it D. who it is 15. Is ___ necessary to complete the design before National Day?
A. this B. that C. it D. he
16. Does ___ matter if he can’t finish the job on time?
A. this B. that C. he D. it17. ___ worried her a bit that her hair was turning grey.
A. That B. It C. What D. This
18. They have made __ a rule __in the room.
A. this; not to smoke B. it; smoking
C. it; to not smoke D. it; not to smokeIt was because of bad weather__________ the football match had to be put off.
(2003 上海春)
A. so B. so that
C. why D. that 高考链接2. It was with great joy ________ he received the news that his lost daughter had been found.
（2004 福建）
A. because B. which
C. since D. that3. It was after the invention of printing ________ to publish large numbers of books and pictures.
（2005上海春）
A. were people able
B. that people were able
C. when were people able
D. people were able 4. It was after he got what he had desired _____ he realized it was not so important. （2006 辽宁）
A. that B. when
C. since D. as 5. It is imagination makes the world colorful, full of vigor and vitality. (2007 上海春)
A. where B. what
C. that D. when6. It is not who is right but what is right ______ is of importance.
(2007 重庆卷)
A. which B. it
C. that D. thisThank you!