句型转换。（5分）

1.Whose guitar is this? (改为同义句) 

 _________ _________ the guitar belong to? 

2.Jack used to be an outgoing pianist. ( 改为一般疑问句) 

 _________ Jack _________ to be an outgoing pianist? 

3.Jennifer is worried because of her poor English. (对划线部分提问) 

_________ __________ Jennifer worried? 

4.Your brother has never heard of the story, __________ ____________? (完成反意疑问句) 

5.I think parents should be strict with teenagers. ( 改为否定句) 

I_______ ________ parents should be strict with teenagers.

You used to be a top student. You shouldn’t ___________.

A. worry about not getting a good job

B. worried about you’ll not get a good job

C. worry about not get a good job

D. worry about having a good job

--- Linda       late for school.

   --- But she arrives on time at present.

   A. used to be        B. used to being      C. is used to           D. is used to being

London used to be “foggy” for the same reason that cities like Beijing or Chongqing are “foggy” today．The “fog” was in fact smog, a mixture of smoke and fog．In other words, it was made by air pollution．In London, some of this pollution came from factories, but much of it came from the coal(煤)that people burnt in their houses to keep warm during the winter．By the 1950s, London’s smog problem had become so bad that the government decided to do something to clean the air．A new law was made and nobody could burn coal in any British city．Within a few years, the air became much cleaner．There were no more “pea-soupers”．

Many Chinese cities now face the same sort of problem with air pollution that London faced 40 or 50 years ago．However, this problem is more difficult for Chinese cities to solve．One reason is that more of the pollution comes from the factories, rather than from coal burnt in people’s houses．If these factories were closed, this would harm the economy and lots of people would lose their jobs．Another reason is that changing from coal to cleaner fuel(燃料), like gas, is quite expensive．

However, the air in many Chinese cities is becoming cleaner and cleaner, as the government and people pay more and more attention to cutting down pollution．As a result, there are fewer “pea-soupers”in Beijing than there used to be．

1.What was the main reason for air pollution in London?

A．There was too much smoke in the sky．

B．There were too many factories in the city．

C．People burnt too much coal in the houses．

D．The city was too big for the cleaners to clean．

2.How did the air in London become much cleaner?

A．There was not so much fog in the winter later．

B．A law was made to keep people from burning coal in their houses．

C．Many factories in the city were closed．

D．People paid more attention to cleaning their city．

3.What does the underlined work “pea-soupers”refer to?

A．Smog????? ????????????? ????????????? B．Smoke????? ????????????? ????????????? C．Gas?????? ????????????? ????????????? D．Coal

4.The problem of air pollution is more difficult for Chinese cities to solve because of ___ reasons．

A．one????????? ????????????? B．two??????? ????????????? ????????????? C．three?????? ????????????? ????????????? D．four

5.Which sentence is Not true?

A．Air pollution is serious in Beijing and Chongqing．

B．Using coal is much more expensive than using gas．

C．Factories made much more pollution in China．

D．The reasons of air pollution in London and Beijing are different．

Now the air in our city is _______ than it used to be. Something must be done to stop it.

A．very good         B．much better       C．rather bad         D．even worse