28.He is ________ how to solve the problem. 查看更多

 

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___,we could forgive him for his mistakes!

A.Were he still a child B.If he is still a child

C.Is he still a child   D.He were still a child

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He is running____the wind towards the station_____

Tom running ________the right.

A. down; and; on     B. against; with; on

C. for; with; in      D. with; while; to

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A new study links heavy air pollution from coal burning to shorter lives in northern China. Researchers estimate that the half-billion people alive there in the 1990s will live an average of 5 years less than their southern counterparts because they breathed dirtier air.

??? China itself made the comparison possible: for decades, a now-discontinued government policy provided free coal for heating, but only in the colder north. Researchers found significant differences in both particulate pollution of the air and life expectancy in the two regions.

??? While previous studies have found that pollution affects human health, "the deeper and ultimately more important question is the impact on life expectancy," said one of the researchers, Michael Greenstone, a professor of environmental economics at Massachusetts Institute of Technology. "This study provides a unique setting to answer the life expectancy question because the(heating) policy dramatically changes pollution concentrations(含量),,,Greenstone said in an email. "Further, due to the low rates of migration in China in this period, we can know people's exposure over long time periods," he said.

??? The policy gave free coal for fuel boilers to heat homes and offices to cities north of the Huai Rivwhich divides China into north and south. It was in effect for much of the 1950-198,0 period of central planning, and, though discontinued after 1980, it has left a legacy(遗留) in the north of heavy coal burning, which releases particulate pollutants into the air that can harm human health. Researchers found no other government policies that treated China's north differently from the south.

??? The researchers collected data for 90 cities, from 1981 to 2000, on the annual daily average concentration of total suspended(悬浮的)particulates. In China, those are considered to be particulates that are 100 micrometers or less in diameter, sent out from sources including power stations, construction sites and vehicles. Among them, PM2.5 is of especially great health concern because it can go deep into the lungs.

??? The researchers estimated the impact on life expectancies using death data from 1991-2000 They found that in the north, the concentration of particulates was 184 micrograms per cubic meteror 55 percent higher than in the south, and life expectancies were 5.5 years lower on average across all age ranges.

1.The main idea of this passage is that_·

A. research in China finds air pollution shortened life expectancy

Bthe government provided free coal for heating in North China

Ccoal burning causes bad air quality across China

D. a new study finds different particulates in South China

2.According to Greenstone,_greatly contributed to the high pollution concentrations in North China.

A. power stations B. construction sites

C. the free heating policy D. gases from vehicles

3.It is implied in the passage that_·

A. coal is no longer used for heating in North China

Bair quality was comparatively better in South China

C. southerners burned coals for heating in the 1980s

Dpeople preferred to live in South China after 1980

4.The underlined word "particulates" most probably means_.

A. dirty clouds B. particular smoke

C. harmful dust D. dangerous bacteria

 

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He is___teacher that all of us like him.

A.a such good       B.such good a

C.a so good       D.so good a

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The new mayor of Hillsdale, Michigan, is a man of the people, ready to listen to their problems, but only until 6 p.m. Then he has to do his homework. Michael Sessions, 18, beat former mayor Douglas Ingles, 51, by just two votes and became the new mayor of Hillsdale. He is America's youngest mayor.
As Sessions was too young to enter the election in the spring of 2005, he registered- to vote on Sept. 22, one day after his 18-year-old birthday. The day after that he started his write-in campaign, which means he should persuade voters to remember his name and write it by hand on the voting ballots(选票).
To help get his name known, Sessions earned$700 by selling apples over the summer. He spent the money on posters and put them on the Hillsdale's lawns.
Sessions' month-long campaign included going door to door, explaining his ideas of the town's future in the kitchens of his neighbors. "They'd look at me, and say‘How old are you again? How much experience do you have?'And I say‘I'm still in high school', "he said. Sessions promised Hillsdale's voters he would renew local economy. “I was hopeful the whole time, ”he explained. One day he spent so long out on the streets knocking on the doors that he ended up in a hospital emergency room.
Sessions said that his schoolwork will not get in the way of his job as a mayor. “From 7:50 a.m. to 2:30p.m., I'11 be a student. From 3 to 6, I'11 be the mayor of Hillsdale," he said.
“He did a very brave thing that couldn't have been easy for him to do, "said Jack Vettel, a councilman in Hillsdale, a city of 8,200 about 75 miles southwest of Detroit. "He does care about this town. He's been here all his life. ”
Sessions will receive$3, 600 a year during his four-year term, and will work out of his bedroom since the town does not provide the mayor with an office.
【小题1】What is TRUE of Sessions' election campaign according to the text?

A.Sessions launched his election campaign on Sept. 22.
B.Sessions worked so hard that he once tried to persuade people in a hospital.
C.Sessions won the election campaign by a very close outcome.
D.Sessions felt disappointed when asked about his age and experience.
【小题2】In order to gain more support from the voters Sessions had to do all these things EXCEPT_.
A.put up posters'B.renew the economy
C.sell applesD.talk to neighbors in kitchens
【小题3】What can we infer from the passage?
A.American mayors usually work from 3 p. m. to 6 p. m.
B.In America, young people are encouraged to get involved in politics.
C.All teenagers are allowed to enter political elections.
D.American mayors receive a salary of 3, 600 a year during their 4-year term.
【小题4】Which of the following would best summarize the text?
A.Schoolboy becomes American's youngest mayor.
B.How to become a teenage mayor.
C.Hard work is the ticket to success.
D.Never too young to shake the world.

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