A survey has found that in adolescence (青春期) a lack of physical activity is conn - 高中英语试题 - 超级试练试题库

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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

答案

小题1:A
小题2:D
小题3:C
小题4:A

解析

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试题【A survey has found that in adolescence (青春期) a lack of physical activity is conn】；主要考察你对题材分类等知识点的理解。[详细]

举一反三

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

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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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第二部分阅读理解 (满分35分)
第一节　语篇阅读 (每小题2分)
阅读理解下面的短文，然后根据短文内容，指出能完成所给句子或回答所提问题的最佳答案。
Astronomy (天文学) is the oldest science known to man. Thousands of years ago man looked at the stars and wondered about heavens (天堂). But the six planets that he could see with his eyes alone limited man.
The Greeks studied astronomy over 2,000 years ago. They could see the size, color, and brightness of a star. They could see its place in the sky. They watched the stars move as the seasons changed. But the Greeks had no tools to help themselves study the heavens.
Each new tool added to the field of astronomy helped man reach out into space. Until there were telescopes (望远镜), man did not know much about the moon. He did not know that the planet called Saturn (土星) had rings around it. His sight was so limited that he could not see all the planets. In the early 1700s, people thought there were only six planets. Pluto (冥王星), the last of the nine planets to be discovered was seen until 1930.
Before the spectroscopes (分光镜), man didn’t know what kind of gas was in the sun or other stars, without radio telescopes (射电望远镜), we did not know that radio noise came from far in space.
Today, astronomy is a growing science. We have learned more in the past fifty years than in the whole history of astronomy.
1Thousands of years ago, man watched ____ with his eyes.
A. the moon       B. the stars         C. the universe    D. all the planets
2 When the Greeks watched the stars, they could ____ .
A. know what the stars were made of     B. not see their places in the sky
C. help themselves study the heavens     D. watch the stars move as the seasons changed
3Until there were ____ , man knew very little about the moon.
A. telescopes      B. spectroscopes C. radio telescopes   D. spaceships
3People didn’t know about Pluto until ____ .
A. the 1700s      B. 2,000 years ago   C. 1930             D. thousands of years ago
5____ people began to do research on astronomy.
A. 50 years ago B. 90 years ago  C. In the early 1700s      D. Over 2,000 years ago

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第三节　完形填空（每小题1分）
阅读下面短文，从短文后各题所给的四个选项中，选出可以填入空白处的最佳选项。
Scientists find that hard-working people live longer than average men and women. Career women are 1 than housewives. Evidence (证据) shows that 2 are in poorer health than the job-holders. A study shows that whenever the unemployment (失业) rate increases by 1%，the death rate increases correspondingly (相应地) by 2%. All this comes down to one point: Work is helpful to heath.
Why is work good for health? It is because work keeps people busy, _3 loneliness and solitude (孤独). Researches show that people feel unhappy, 4 and lonely when they have nothing to do. Instead, the happiest are those who are 5 . Many high achievers who love their careers feel that they are the happiest when they are working hard. Work serves as a 6 between man and reality (真实). By work, people come into contact with each other. By collective (集体的) activity, they find friendship and warmth. This is helpful to health. The loss of work 7_ the loss of everything. It affects man spiritually (在精神上) and makes him liable to (易于) 8 .
9 , work gives one a sense of fulfillment (充实感) and a sense of 10 . Work makes one feel his value and status in society. When a 11 finishes his writing or a doctor successfully operates on a patient or a teacher sees his students grow, they are 12 beyond words (无法用语言表达).
From the above we can come to the conclusion 13 the more you work, 14 you will be. Let us work hard, 15 and live a happy and healthy life.
⒈ A. more healthier        B. healthier      C. weaker         D. worse
⒉ A. career women         B. the busy       C. the jobless   D. the hard-working
⒊ A. up with   B. off         C. in touch with        D. away from
⒋ A. interested       B. joyful    C. concerned   D. worried
⒌ A. busy         B. free      C. lazy      D. empty
⒍ A. river         B. gap       C. channel        D. bridge
⒎ A. means     B. stands C. equals D. matches
⒏ A. success   B. death   C. victory D. disease
⒐ A. Besides   B. Nevertheless       C. However      D. Yet
⒑ A. disappointment      B. achievement        C. regret D. apology
⒒ A. worker    B. farmer C. writer D. manager
⒓ A. moved     B. surprised     C. sad       D. happy
⒔ A. that         B. which   C. what    D. when
⒕ A. the lonelier and weaker B. lonelier and healthier
C. happier and healthier D. the happier and healthier
⒖ A. study well        B. studying well        C. study good D. studying good

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第二部分：阅读理解（共20 小题。第一节共15 小题，每题2分；第二节共5 题，每题2分；共40 分）
阅读下列短文，从每题所给的四个选项 A．B．C．D中选出最佳选项。
A
Unnoticed and unappreciated for five decades，a large female turtle （龟）with a stained（彩色的），leathery（粗而硬的） shell is now a precious commodity（物品）in Changsha’s old zoo．She is fed on a special diet of raw meat．Her small pool has been covered with glass which can defend it from bullets．A special camera monitors her movements．A guard is posted at night．
The purpose is simple：the turtle must not die．
Earlier this year，scientists concluded that she was the planet’s last known female Yangtze giant soft shell turtle．She is about 80 years old and weighs almost 90 pounds．
As it happens，the planet also has only one known male．He lives at a zoo the city of Suzhou．He is 100 years old and weighs about 200 pounds．They are the last hope of saving a species believed to be the largest freshwater turtles in the world．
“It’s a very dangerous situation,” said Peter Pritchard, a famous turtle expert in the United States，who has helped try to save the species．、
For many Chinese people，the turtle is the symbol of health and long life，but the last two Yangtze giant soft-shell creatures show the threatened state of wildlife and biodiversity（生物多样性）in China．Pollution, hunting and over development are destroying natural habitats，and also endangering the plant and the animal population．
China contains some of the world’s richest treasures of biodiversity, yet the latest major survey of plants and animals shows a discouraging picture．Nearly 40 percent of all mammal species in China are now endangered, Scientists say．For plants，the situation is worse；70 percent of all nonflowering plant species and 86 percent of flowering species are considered threatened．
46．Why is the turtle in Changsha specially cared?
A．She has been unnoticed and unappreiated five decades．
B．She can be sold at a high price．
C．She is the planet’s last known female Yangtze giant soft-shell turtle．
D．She is old and heavy．
47．Which of the following statements is TRUE according to the text?
A．The turtle in Changsha is precious because it is the symbol of health and long life．
B．Peter Pritchard believes the female turtle is the largest freshwater turtle in the world．
C．The female turtle is in a dangerous situation where she may be killed．
D．The female turtle in Changsha and the male turtle in Suzhou are the last hope of saving the largest freshwater turtle species in the world．
48．According to the text ________in China．
A．there are the richest species of living things
B．wild plants and animals are becoming fewer
C．turtles are specially protected
D．the situation of plants is better than that of mammal species
49．The last paragraph proves the threatened state of wildlife and biodiversity in China by__________ ．
A．facts and numbers B．Peter Pritchard’S words
C．teaching theory D．telling a story

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