Outdoor air pollution is an obvious danger because it’s hard to miss.Auto gases, industrial waste, city smog—everyone knows they’re a health hazard(危险) and a call for solutions is on everyone’s lips.But there’s another threat just as perilous— a hidden threat(威胁) we are usually unaware of.We’re speaking about the threat of indoor air pollution.
The dangers caused by indoor air pollution are too often underestimated(低估) and overlooked.According to a recent study, indoor air pollution can be many times higher than outdoor air pollution.A similar study by the Environmental Protection Agency shows that, in general, the air in our homes and offices is two to five times more polluted than outdoor air.
Scientific studies have found that indoor air pollution exacerbates(恶化) the symptoms of asthma(哮喘), and contributes to causing nausea(恶心), headaches and damage to the central nervous system.Evidence has even been found linking poor indoor air quality to certain cancers.Children who spend eighty percent of their time inside are particularly affected by indoor air pollution.
Cigarette smoke, chemical fertilizers(肥料), perfumes and clothing that has been dry-cleaned may contribute to indoor air pollution.Building materials—including paint and glue—are also contributors.
And homes aren’t the only indoor areas affected by this danger.Offices are affected too—sometimes more so—with their copy machines and printers, inks and processing solutions (显影液)and so on.
Fortunately there are many ways to reduce indoor air pollution and improve indoor air quality in your home and office.A major first step would be the use of an air purifier(净化器).What does the underlined word “perilous” mean?
| A．Nervous. | B．Similar. | C．Obvious. | D．Dangerous. |
The author mentions some studies in Paragraph 2 to show indoor air pollution__________.
| A．is recently overestimated |
| B．is very common and serious |
| C．has drawn people’s attention |
| D．is linked to many serious diseases |
Which of the following is the usual contributor of air pollution in our homes?
| A．Smoking. | B．Printing. |
| C．Copy machines. | D．Processing solutions. |
7.What would be discussed in the paragraph that follows?
| A．An introduction to the air purifier. |
| B．Other dangers of indoor air pollution. |
| C．Other sources of indoor air pollution. |
| D．More solutions to the problem of air pollution. |
Not long ago , Richard Denniston found himself suffering the same pain that millions of other pet owners have faced . His little Scottish dog had a brain tumor（肿块）and would soon die. Like others who faced the problem before him , Denniston just wanted to end his pet’s suffering . However , he took one step further.
Deniston , an expert who studies animals , collected a tiny skin sample from the dog and took it to his laboratory at Louisiana State University. There he cultivated it and froze it in liquid nitrogen.
From that idea , Denniston started a new technology .Denniston’s company will save pet’s DNA ＄500，plus a monthly storage fee of Us ＄10, until cloning becomes a reality .
Thanks mostly to the contribution of a California multimillionaire , that day may not be so far off.
“It could happen extremely soon if everything went on well.”says Mark Westhusin , a professor leading a dog cloning team . Most experts put successful dog cloning a year to five years down the road . The cost is bound to be expensive at first , but it would eventually drop to a few thousand dollars.
Since Dolly , the sheep which was first cloned in 1997 ,cattle ,goats ,mice and monkeys have been cloned in labs . Pets are likely to be next.
“I really believe that the technology is going to become available for many species in the near future ,”Denniston says .
1. After his pet died ,Richard Denniston_______.
A. did something more than the ordinary pet owners
B. did as other pet owners
C. did nothing but feel very sad
D.could not help feeling lonely without his dear pet
2. Richard Denniston_________in liquid nitrogen for an experiment.
A. was a doctor who put his dog
B. was an animal expert who put a piece of his dog’s skin
C.was an expert at collecting skin samples who then put them
D.took great interest in freezing
things
3. The underlined word “cultivated ”in Para . 2 probably means_________.
A. bought B.discovered C.caught D.trained
4. Cloning will cost people_______.
A. a lot of money in five years .
B. much in the beginni
ng and then be reduced to a thousand dollars.
C. much and then will surely be reduced to thousands of dollars.
D.much at first and then might be reduced to a few thousand dollars.
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ce Net) . If your Kindle experiences a covered failure during the plan’s term , Service Net will replace your unit at 
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1. The ad is intended for those who .
A. prefer listening to pop music B. are fond of playing video games
C. like reading novels D. want to look up new E
nglish words
2. Kindle is especially helpful to those .
A. whose eyesight is very bad B. whose English is not very good
C. who are blind and deaf D.
who are very slim
3. We can learn from the passage that .
A. you can download a whole book free of charge
B. you have to pay some fees when you download a whole book
C. the battery can only last a few hours before recharging
D. you can get a book downloaded in less than half a minute
4. If you have your Kindle damaged by chance within two years after you purchase the 2-year Kindle Extended Warranty plan , you .
A. can get your money back
B. can have your unit repaired free of charge
C. can get a new unit free by returning the damaged one
D. can have your unit repaired at a low cost
第三部分：
阅读理解（共15小题；每小题2分，满分30分）
阅读下面短文,从每题所给的四个选项(A、B、C、D)中,选出最佳选项,并在答题卡上将该项涂黑。
Louis Armstong had two famous nicknames（绰号）. Some people called him Bagamo . They said his mouth looked like a large bag . Musicians often called him Pops , as a sign of respect for his influence on the world of music .
Born in 1901 in New Orleans , he grew up poor , but lived among great musicians . Jazz was invented in the city a few years before his birth . Armstrong often said , “ Jazz and I grew up together .”
Armstrong showed a great talent for music when he was taught to play the cornet(短号) at a boy’s home . In his late teens , Armstrong began to live the life of a musician . He played in parades , clubs , and on the steamboats that travelled on the Mississippi River . At that time , New Orleans was famous for the new music of jazz and was home to many great musicians . Armstrong learned from the older mu
sicians and soon became respected as their equal .
In 1922 he went to Chicago . There , the tale of Louis Armstrong begins . From then until the end of his life , Armstong was celebrated and loved wherever he went . Armstrong had no equal when it came to playing the American popular s
ong .
His cornet playing had a deep humanity(仁爱) and warmth that caused many listeners to say , “ Listening to Pops just makes you feel good all over .” He was the father of the jazz style and also one of the best-known and most-admired people in the world . His death , on July 6 , 1971 , was headline news around the world .
1. Armstrong was called Pops because he .
A. looked like a musician B. was a musician of much influence
C. showed an interest in music D. travelled to play modern music
2. The third paragraph is developed .
A. by space B. by examples C. by time D. by comparison
3. Which statement about Armstrong is true ?
A. His tale begins in New Orleans .
B. He was born before jazz was invented .
C. His music was popular with his listeners .
D. He learned popular music at a boy’s home .
4. Which would be the best title for the text ?
A. The Invention of the Jazz Music .
B. The Father of the Jazz Style .
C. The Making of a Musician .
D. The Spread of Popular Music .
第II卷非选择题（共35分）
第四部分：任务型阅读（共10小题；每小题1分，满分10分）
请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
Do we need an “Ivy League”?
China may soon have its own “Ivy League”, with a union of top universities.
The term originally referred to an athletic conference of eight top universities in the northeastern US. The Chinese version, which was officially started in mid-October, consists of nine famous universities, including Peking, Tsinghua, Zhejiang and Fudan. The union is supposed to result in s
tudent exchange programs, recognition of academic achievements, and other joint programs.
The news of this Chinese “Ivy League” has received mixed responses from the public and press. Some negative critics have dismissed it as yet another example of the wishful copying of international practices without fully understanding them. Others say that the “Ivy League” is not necessary but that the union is a good idea, one that could promote academic development.
So what’s your opinion on a Chinese “Ivy League”? Do we need one?
Yes. Ivy League or not, nine of China’s best universities cooperating is a good thing.
These universities combining resources could create a better environment for students and for research. It could also save a lot of time and resources because it would mean fewer unnecessary investments for some of the universities.
Allowing students to move to or have exchanges with other universities could broaden their horizons, improve their social skills and create more employment opportunities. The 
results could be more important than lessons and achievements.
The term “Ivy League” carries a sense of academic excellence, tradition and reputation. If borrowing such a term could encourage students’ and professors’ mental state and improve Chinese higher education, then there’s no reason not to do it.
No. Universities should do some work on increasing cooperation instead of copying an “Ivy League” model.
Many Chinese universities already have such cooperation with each other. If this cooperation were associated with the “Ivy League”, it would just distract (分散) attention and resources and have a negative effect.
These Chinese universities are all state-run and most get their funding from the government. They’re quite similar to each other in many ways and more cooperation wouldn’t bring about as much potential ability as between , say, public and private, or Chinese and foreign universities.
China should find its own way to develop world-class universities instead of by copying some foreign practices. We have our own unique conditions and foreign lessons often don’t apply well here. 
Against the assumption that forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.
This finding suggests that taking steps to prevent northern forest fires to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over next several centuries as a result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling.
This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat.
Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone（臭氧）levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling.
“We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere.” Scientists tracked the change in amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicated, 0.5 watts per square meter of area burned are soaked up by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.
1. According to the new findings, taking steps to prevent northern forest fires may _______.
A. result in a warming climate B. cause the forest fires to occur more frequently
C. lead to a longer fire season D. protect the forests and the environment there
2. Earlier studies about northern forest fires ________.
A. analyze 
all aspects of how northern fires influence climate
B. indicate that forest fires will pollute the atmosphere
C. suggest that people should take measures to protect environment
D. suggest that the fires will speed up climate warming
3. The underlined phrase “soaked up” in the last paragraph most probably means ________.
A. released B. absorbed C. created D. disturbed
4. From the text we can draw a conclusion that forest fires in Alaska, Canada and Siberia may ______.
A. warm the climate as the assumption goes
B. allow more snow to reflect more sunlight into space and thus cool the climate
C. destroy large areas of forests and pollute the far-off sea ice
D. help to gain more energy rather than release more energy
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