题目
题型：不详难度：来源：
第三部分：阅读理解（共20小题；每小题2分，满分40分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题
卡上将该项涂黑。
The 2009 outbreak of HINI is a new kind of influenza virus, commonly referred to as “swine flu”. It is thought to be a break of four known kinds of influenza. A virus subtype H1N1: one endedmic(流行病) in humans, one endemic in birds, and two endemic in pigs (swine). The source of the outbreak in humans is still unknown, but cases were first discovered in the U.S. and soon after in Mexico.
According to the U.S. Centers for Disease Control and Prevention(CDC)，it is not yet clear how serious this new virus actually is compared with other influenza viruses, although on May 26 they stated that new cases in the U.S. have probably reached the hightest point, and most cases have so far been mild relative to “seasonal flus”. But because this is a new virus, most people will not have immunity(免疫性) to it, and illness may eventually become more severe and widspread. The H1N1 flu mainly spreads in the same way that regular “seasonal influenza” spreads through the air from coughs and sneezes or touching those infected. It cannot be transmitted from eating cooked pork or by being in close contact with pigs.
As yet there is no vaccine(疫苗) available to prevent infection although companies are in the planning stages for having one available later this year. But there is concern that the virus could vary again over the coming months, leading to a new and potentially more dangerous flu outbreak later in the year, and a vaccine that will be less effective in preventing its spread.
As of May 27, the virus had spread to more than 50 countries; however, over 80% of reported deaths have taken place in Mexico. According to the CDC, the fact that the flu’s infection activity is now monitored more closely may help explain why more flu cases than normal are being recorded in Mexico, the United States and other countries.
1. The 2009 outbreak of H1N1 is thought to .
A.be concerned with four endmics
B.have come from the virus from pigs
C.occur because of unknown virus in Mexico
D.be caused because of people without immunity
2.According to the U.S. Centers for Disease Control and Prevention, ______.
A.most people won’t be infected with the flu
B.the H1N1 will not be too mild to cause many deaths in the world
C.the present situation allows of no optimist
D.H1N1 can be transmitted by touching pigs
3.To make people worried more is that .
A.no effective vaccine can prevent the virus from spreading
B.the virus will mutate in the following months
C.a seasonal influenza will break out
D.the newly-developed vaccine will lose effectiveness
4.From the passage we can learn that .
A.every country is watching closely the spreading of the H1N1
B.more than one-fourth of the deaths from the H1N1 are in Mexico
C.only the United States and Mexico recorded the cased of influenza
D.effective medicine has been produced to cure the H1N1
答案
小题1:A
小题2:C
小题3:B
小题4:A
解析
核心考点
试题【第三部分：阅读理解（共20小题；每小题2分，满分40分）阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。The 2】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
第三部分：阅读理解（共20小题；每小题2分，满分40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。
We used to go into different chat rooms on different websites . If you wanted to meet someone on the net , you had to go into the same chat room . But now regular net surfers chat on OICQ .
OICQ is an online chat software which is invented by Tencent Computer System Company of Shenzhen in February , 1999 . Since then it has swept the country . Its symbol is a penguin wearing a red scarf .
Net friends can be divided into a buddy list (for good friends ) , a stranger list ( for people you want to avoid on the Net ) . You can also build family lis
ts , co-worker lists , etc .You can know whether listed friends are online as long as you use it . The cartoon portrait(
肖像，画像) of the person turns bright if he is online . And the portrait turns dim(灰暗的) if he is not there .Traditional public chat rooms are chaotic . It is difficult to focus on a conversation . OICQ can conduct a focused talk without interruptions by other chatters . OICQ has become a regular daily communication tool . “What is your OICQ number ? ” has become a modern topic .
1. OICQ is________.
A. a special chat room for all the cyber citizens（网民）
B. a cartoon portrait to make friends on the Internet
C. an online chat software that helps you talk on the Internet more freely
D. a modern phone number used by more and more people
2. If you don’t want to chat with someone , you can put him in_______with the help of OICQ .
A. a buddy list B. a stranger list
C. family lists D. co-worker lists
3. The passage mainly tells us____________.
A. how to chat with people on the Internet
B. how to use OICQ
C. how to choose a regular daily communication tool
D. some advantages about OICQ
第三部分：阅读理解（共20小题；每小题2分，满分40分）
Put yourself in these tourists’ position. You are walking an icy mountain path in the Alps in Europe. Suddenly you spot a body on the ground, face downward and stuck to the ice. You think someone may have been murdered or in a fatal accident. So you rush back and call the police. The police, however, quickly realize that this body is different from others they’ve found on the mountain. For one thing, it is mostly undamaged. For another, its skin is dried out, like a mummy’s（木乃伊）. And there is an old small stone knife beside the body.
The body turned out be much older than the tourists could have guessed. When specialists（专家）had a chance to examine it, they discovered it had been there for about five thousand years!
How could a body stay preserved for all this time? Two things probably helped. First, the place where the man died was somewhat sheltered, so animals couldn’t get at it. Then he was quickly covered by falling snow. Wind blowing through the snow probably “freeze-dried” his body, removing all moisture(水分) from it.
Objects found with the body told something about the Iceman’s life. He wore a well-made fur jacket and trousers. He clearly had been hunting, because he carried arrows, and animal bones were nearby. He also had a grass cushion for sitting or sleeping on. Perhaps he was tired when he lay down for the last time.
The body was found in 1991, when some of the ice on the mountain melted. Searching for the cause of the Iceman’s death, scientists put the body back into cold conditions---and hoped.
1. What does the underlined word “spot” in the first paragraph probably mean?
A. lay B. dig C. find D. carry
2. Which of the following is NOT the reason that the police realize that the body is different from others?
A. The body’s skin is like a mummy’s. B. Beside the body is an old small stone knife.
C. The body is much older than others. D. The body is mostly undamaged.
3. At what time of a year was the Iceman probably died?
A. Early fall. B. Late spring. C. Summer. D. Winter.
4. This passage is mainly to _____________
A. tell us what life was like 5, 000 years ago.
B. warn us not to go to the Alps.
C. introduce a mysterious Iceman to us.
D. explain the mystery of the Alps.
A survey has found that in adolescence (青春期) a lack of physical activity is connected with emotional and behavioral problems. More than 7,000 teenagers in Finland took part in the survey that judged their levels of physical activity and mental and emotional health. Boys who reported less than one hour of physical activity a week were more likely to be anxious and sad than boys who were more active. Girls who were not active had similar problems, and were more likely than boys who were not active to have sleep problems and break school rules.
The researchers concluded that both boys and girls who are not active are more likely than active ones to have social and attention problems.
“Adolescence is already a difficult stage of life-emotionally, mentally and physically,” study author Marko T.Kantomaa said in the American College of Sports Medicine.
“Mixing that with negative mental and emotional effects brought on by lack of physical activity does not help young people enter adulthood smoothly. Physical activity could be a highly effective and relatively easy way to help that transition and could lead to healthy habits for one’s whole life,” Kantomaa said.
Researchers said that evidence suggests that an increase in physical activity helps reduce problems of sadness and anxiety in both adolescents and adults. “It seems that there is a psychological(心理的)and physiological(生理的)connection that helps explain the beneficial effects of exercise on mental health,”Kantomaa said.
1. The first paragraph leads us to believe that________.
A. a lack of physical activity may cause many mental problems
B. a lack of physical exercise is common among teenagers
C. girls have more physical and mental problems than boys
D. inactive boys are more likely to break rules than inactive girls
2. Which of the following problems may NOT be caused by a lack of activity according to the passage?
A. Anxiety. B. sleeplessness. C. Inattention. D. unkindness.
3. From the passage we can conclude that___________.
A. boys take more physical exercise than girls
B. teenagers who aren’t active spend a lot of time studying
C. plenty of physical activity is effective in developing healthy habits
D. physical exercise is the only way to cure mental problems
4. The underlined word “transition” in the fourth paragraph is closest in meaning to“_______”.
A. change B. condition C. balance D. activity
Priscilla Ouchida’s “energy-efficient” house turned out to be a horrible dream. When she and her engineer husband married a few years ago, they built a $100,000 three-bedroom home in California. Tightly sealed to prevent air leaks, the house was equipped with small double-paned (双层玻璃的) windows and several other energy-saving features. Problems began as soon as the couple moved in, however. Priscilla’s eyes burned. Her throat was constantly dry. She suffered from headaches and could hardly sleep. It was as though she had suddenly developed a strange illness.
Experts finally traced the cause of her illness. The level of formaldehyde (甲醛) gas in her kitchen was twice the maximum allowed by federal standards for chemical workers. The source of the gas? Her new kitchen cabinets and wall-to-wall carpeting.
The Ouchidas are victims of indoor air pollution, which is net given sufficient attention partly because of the nation’s drive to save energy. The problem itself isn’t new. “The indoor environment was dirty long before energy conservation came along,” says Moschandreas a pollution scientist at Geomet Technologies in Maryland. “Energy conservation has tended to accentuate the situation in some cases.”
The problem appears to be more troublesome in newly constructed homes rather than old ones. Back in the days when energy was cheap, home builders didn’t worry much about unsealed cracks. Because of such leaks, the air in an average home was replaced by fresh outdoor air about once an hour. As a result, the pollutants produced in most households seldom build up to dangerous levels.
1. It can be learned from the passage that the Ouchidas’ house __________
A. is well worth the money spent on its construction
B. is almost faultless from the point of energy conservation
C. failed to meet energy conservation standards
D. was designed and constructed in a scientific way
2. What made the Ouchidas’ new house a horrible dream?
A. Lack of fresh air. B. Poor quality of building materials.
C. Gas leak in the kitchen. D. The newly painted walls.
3. The underlined word “accentuate” in the third paragraph most probably means ___________.
A. control B. worsen C. relieve D. improve
4. This passage is most probably taken from an article entitled “_________”.
A. Energy Conservation B. Houses Building Crisis
C. Air Pollution Indoors D. Traps in Building Construction
Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.
“To provide enough power, we need certain methods with high energy density(密度)”，said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”
Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.
“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”
His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.
“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”
Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the bat
tery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thic
kness of human hair.1. Which of the following is true of Jae Kwon?
A. He teaches chemistry at MU.
B. He developed a chemical battery.
C. He is working on a nuclear energy source.
D. He made a breakthrough in computer engineering.
2. Jae Kwon gave examples in Paragraph 4_________.
A. to show chemical batteries are widely applied.
B. to introduce nuclear batteries can be safely used.
C. to describe a nuclear-powered system.
D. to introduce various energy sources.
3. Liquid semiconductor is used to _________.
A. get rid of the radioactive waste
B. test the power of nuclear batteries
.C. decrease the size of nuclear batteries
D. reduce the damage to lattice structure.
4. According to Jae Kwon, his nuclear battery _______.
A. uses a solid semiconductor
B. will soon replace the present ones.
C. cou
ld be extremely thin D. has passed the final test.
5. The text is most probably a ________.
A. science news report B. book review
C. newspaper ad D. science fiction story
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