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A recently study found people’s lives are made shorter in North China. It is showed the life expectancy(平均寿命) had been cut down by 5.5 years there. Researchers think that the heavy air pollution in China should be to blame. It’s really the truth. Our government has already done something. However, it doesn’t seem to work so well.

“Air pollution in China is doing harm to people’s health. The harm is much more serious than we can imagine,” said Chen Yuyu of Beijing University, one of researchers of this study.

Dirty air brings serious problems in North China. In January this year, the air pollution was worse than that in other places. That was caused by rising temperature and waste gas from coal heating.

Chinese government should strongly fight against air pollution. They should think of more proper ways to deal with the problem. People should be encouraged to take buses, ride bicycles or walk, instead of driving cars. The factories that pollute heavily should be closed.

“We need to improve our environment, although it might be expensive. Protecting our environment means protecting ourselves,” Li Hongbin, another researcher of the study said.

1.The passage above may come from an advertisement.

2.The study showed the life expectancy had been cut down by 5.5 years in North China.

3.Air pollution is very harmful to people.

4.People shouldn’t be encouraged to take more transportation .

5.People need to make pollution less, although it might cost a lot.

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3.When a computer works on a group of programs,it can get very hot.Cooling the computer can cost a lot.So some scientists wonder what would happen if the heat from the computer could beused.
   Large Internet companies(公司)such as Google and Microsoft have thousands of computers.As these computers deal with information,they produce lots of heat,so they need huge cooling systems(系统).These systems send the heat in to the air.
    A company in Holland(荷兰)thinks paying to make the computers work and then paying again to cool them are a waste of energy.So the company developed a special device-thee-Radiator.
   Boaz Leupe,head of the company,says that e-Radiator works as a heating system and saves money.He explains that the energy is used twice-once to heat the home and once to cool the computer and that the users don't have to pay to cool their computers.
   Five homeowners in Holland are testing the heating system in their homes.
"We pay for the computer using,so,in that way,homeowners get heating for free,"Boaz says.Jan Visser is one of the homeowners."If you use the computer more,the e-Radiator producers more heat,"he says,"It cannot provide enough heat if you don't use your computer often."But he is ready to try it.It's a great help for his family.
   The company says e-Radiators produce heat temperatures of up to 55℃.It says the system could save its users about 440 a year.

62.Before the e-Radiator appears,usually the heat of a computerA.
A.is sent into the air     
B.helps the five homeowners
C.is used twice             
D.makes the computer work better
63.The e-radiator is mainly usedD.
A.to drive the computer     
B.to help Microsoft
C.to heat the computer      
D.to provide heat
64.The Chinese meaning of the word"device"in this passage is probably"C".
A.节能    
B.实验    
C.仪器    
D.开关
65.The best title of the passage may be"B".
A.An Environment Problem     
B.A New Way to Heat Homes
C.The Future Computers       
D.The Energy to Be Wasted.

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