When the school year starts, it can be difficult to get up early．After a few ear - 高中英语试题 - 超级试练试题库

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When the school year starts, it can be difficult to get up early．After a few early mornings, extreme tiredness might make you feel like you’re going to fall over．The amazing thing is that you probably manage to stay awake all day long and into the night．But how?
A chemical in the brain called dopamine（多巴胺）might be part of the answer．According to new research, dopamine is what keeps people who don’t get enough sleep from conking out．The chemical also has a complicated influence on your ability to think and learn when you don’t get enough sleep．
To study sleep loss and its effect on the brain, scientists rounded up 15 healthy volunteers．The scientists tested each person’s memory and ability to pay attention twice: once after a good night’s sleep and once after being kept up all night long．During the tests, the scientists measured levels of dopamine in the brains of the volunteers．
The results showed that when the volunteers stayed up all night, dopamine levels increased in the brain．Higher levels of dopamine kept the volunteers awake even though they felt tired．Some people are amazingly able to think clearly and react quickly, even when they haven’t had much sleep．Other people have a really hard time paying attention when tired, and their reactions are slow．All of these may be related to the dopamine levels．However, the researchers found that higher levels of dopamine don’t remove the trouble people have thinking and learning while sleep-deprived （缺乏睡眠的）．
60．The underlined phrase “conking out” in the second paragraph probably means     ．
A．staying awake    B．falling asleep
C．paying attention         D．falling over
61．With a higher level of dopamine, one     ．
A．will not dream dreams at night              B．may have trouble in falling asleep
C．can still stay awake after staying up          D．can do better in learning and working
62．We can infer from the last paragraph that        ．
A．not all people can react quickly after they stay up late
B．dopamine in our brain does not work when we are sleeping
C．lack of sleep has no influence on one’s learning and thinking ability
D．the higher the dopamine levels are, the more quickly one reacts
63．The passage is developed by        ．
A．setting up a point and discussing it
B．giving examples and drawing a conclusion
C．pointing out similarities and differences
D．showing a fact and explaining the cause

答案

小题1:B
小题2:C
小题3:A
小题4:D

解析

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试题【When the school year starts, it can be difficult to get up early．After a few ear】；主要考察你对题材分类等知识点的理解。[详细]

举一反三

We all have ideas about what kinds of foods are good to eat. We also have ideas about what kinds of foods are bad to eat. As a result, people from one culture often think the foods that people from another culture eat are nauseating(令人作呕的).When the famous boxer Muhammad Ali visited Africa, for example, one member of his group became quite sick when he saw someone pick up a butterfly and eat it. Many people would find it disgusting to eat rats, but there are forty-two different cultures whose people regard rats as appropriate food.
Food likes and dislikes do not always seem related to nutrition. For example, broccoli is first on a list of the most nutritious common vegetables, but it is twenty-first on a list of vegetables that Americans like most to eat. Tomatoes are sixteenth on the list of most nutritious vegetables, but they are first on the list of vegetables that Americans like most to eat.
But dislike is not the only reason why some cultures will not eat a certain food. In some cultures, certain foods are taboo. Some foods are taboo in certain religions, but there are also other food taboos that are not connected to a religion. We do not usually think about why certain things are taboo in our culture. We may not even know why they are taboo. Anthropologists(人类学家) try to discover the hidden reasons for taboos.
Anthropologists believe that most food likes and dislikes are a result of the ways of life of different people. Some people live in areas where there are both large animals and many insects. It is difficult for these people to kill large animals, and it requires a lot of energy. It is easier for them to use insects for food because it is not difficult to catch insects and it does not require a lot of energy. Nomadic(游牧的) people who move around will not want to keep pigs for food. People will not eat pets such as dogs. Americans eat a lot of beef because there is plenty of land for raising cattle and the me

at can be shipped cheaply for long distances by railroads.
小题1: What’s the main topic of this passage?

A．Food and religion.	B．Food and culture.
C．Nutrition of different foods.	D．Different ways of life.

小题2:Which of the following statements is TRUE about food likes and dislikes?

A．They are seldom related to nutrition.

B．They are mostly associated with people’s taste.

C．They are mostly connected with people’s life styles.

D．They are usually related to cultures or religions.

小题3:The underlined word “taboo” (Line 3, Para. 3) refers to _____.

A．something undiscovered	B．certain religions
C．something forbidden	D．certain foods

小题4:What can we infer from the passage?

A．It is believed that brcoccoli is more nutritious than tomatoes.

B．Americans prefer tomatoes to beef.

C．People in Inner Mongolia would probably like to keep pigs for food.

D．The famous boxer Muhamm Ali would like to eat rat rather than butterfly.

小题5:Why do Americans prefer to eat beef?

A．Because beef provides a lot of energy people require.

B．Because beef is on the list of the most nutritious foods.

C．Because they have the ideal condition to keep and ship cattle.

D．Because cattle are large animals.

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Comprehensive lifestyle changes including a better diet and more exercise can lead not only to a better physique, but also to swift and dramatic changes at the genetic level, U.S. researchers said on Monday. In a small study, the researchers tracked 30 men with low-risk prostate cancer（前列腺癌）who decided against conventional medical treatment such as surgery and radiation or hormone therapy.

The men underwent three months of major lifestyle changes, including eating a diet rich in fruits, vegetables, whole grains, legumes and soy products, moderate exercise such as walking for half an hour a day, and an hour of daily stress management methods such as meditation（冥想）. As expected, they lost weight, lowered their blood pressure and saw other health improvements. But the researchers found more profound changes when they compared prostate biopsies taken before and after the lifestyle changes. After the three months, the men had changes in activity in about 500 genes -- including 48 that were turned on and 453 genes that were turned off. The activity of disease-preventing genes increased while a number of disease-promoting genes, including those involved in prostate cancer and breast cancer, shut down, according to the study published in the journal Proceedings of the National Academy of Sciences.

The research was led by Dr. Dean Ornish, head of the Preventive Medicine Research Institute in Sausalito, California, and a well-known author advocating lifestyle changes to improve health. "It"s an exciting finding because so often people say, "Oh, it"s all in my genes, what can I do?" Well, it turns out you may be able to do a lot," Ornish, who is also connected with the University of California, San Francisco, said in a telephone interview. ""In just three months, I can change hundreds of my genes simply by changing what I eat and how I live". That"s pretty exciting," Ornish said. "The implications of our study are not limited to men with prostate cancer."

60. The article basically states that a healthy lifestyle__________.

A. can even change your genes for the better.

B. has no effect on your genes.

C. is good for the environment.

D. helps men recover from prostate cancer.

61. Apart from eating healthy food and exercising, the men in the study__________.

A. were put under a lot of stress.

B. were walking for hours a day..

C. were taught stress management methods.

D. were thinking for a whole day.

62. In total, how many disease-preventing genes turned on as a result of the healthy lifestyle?

A. 30 B. 453 C.500 D. 48

63. Which of the following is NOT mentioned in the article?

A. The men with low-risk prostate in the study lost weight and lowered their blood pressure.

B. A famous author and Dr. Dean Ornish led this research.

C. Dr. Dean Ornish expressed his optimism about this research in a telephone interview.

D. Conventional medical treatment has no effect on the men with prostate cancer.

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第三部分：阅读理解（共20小题，每小题2题，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。
Who says Americans worship the almighty dollar? It’s not true．Having enough free time is more important to most Americans than being rich, according to a new poll．
Only 13 percent of more than 2,400 people questioned in the telephone poll ranked being wealthy as most important to them, while 67 percent ranked free time as their top priority, higher than having a successful career, getting married, and having children．"Everyone wants free time to do the things they want to do, young, middle-aged or old," said Richard Morin, of the Pew Social & Demographic Trends Project, which conducted the survey．"So our desire to play unites us．"
The poll also showed that people who were university educated valued career success over wealth, as middle-aged people did．Not surprisingly, those who didn"t have money, ranked wealth very highly．This included minorities, first generation Americans and less educated people．The survey also revealed that a disproportionate （不成比例的） number of people under the age of 30 and retirees in the group made $ 20,000 or less a year．But the emphasis on wealth lessens with age, with younger people putting value on it but hardly any seniors．"It just diminishes with time as the reality sets in that you would never be rich," Morin said．"But also, the reality sets in that you don"t have to be rich to lead a very comfortable and fulfilling life．"
While wealth was not at the top of people" s list of priorities, 43 percent still said it was somewhat important．
56．The poll showed that the majority of American people ranked ____ as the most important．
A．wealth              B．a successful career
C．marriage            D．free time
57．Who cares least for wealth, according to the passage?
A．Young people．                    B．Middle-aged people．
C．Old people．                       D．Well-educated people．
58．The underlined word "diminishes" in the third paragraph probably means "____"．
A．to increase          B．to decrease          C．to change          D．to stay

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The World Health Organization raised the pandemic(流行病) flu alert(警戒) to six, the highest level, which means that the H1N1 swine flu is spreading world-wide.
The WHO will ask all countries, including the countries that haven’t yet reported any cases, to make plans to control this disease.
“It was reported that about 35,000 people infected with the H1N1 virus in 74 counties,” Margaret Chan, an officer of the WHO, said on Thursday. “Further spread of the disease is possible,” Ms Chan said. So far, WHO doesn’t expect a sudden jump in the number of serious or dead cases reported.
In Australia, the number of people who got the flu became more than three times as many as before in the past week, reaching 1,263 on Thursday, when three new ones were reported in this country. It recorded its first case of the disease on May 9. “Australia tells us not because of the number of cases, but because of the strong facts of community transmission(群体性传播),” said the spokesman for the World Health Organization. He said the WHO is also watching on similar evidence in the UK, Spain, Japan and Chile.
In Hong Kong, the government on Thursday ordered the nurseries, kindergartens and primary schools to close for two weeks after a dozen students at one school tested positive for swine flu. Elsewhere in Asia, health officials in Thailand found 30 new H1N1 cases, raising the total there to 46.
54. How many levels does WHO use to warn people against the pandemic flu?
A. Five.                       B. Six.                         C. Seven.                            D. Eight.
55. WHO raised the pandemic flu alert to the highest level because       .
A. all countries in the world have reported dead cases
B. there is a sudden jump in the number of cases reported
C. there is no medicine to cure this flu
D. it is spreading in the world
56. Which of the following is true according to the passage?
A. The number of people who got the flu has dropped slightly in the past week in Australia.
B. The WHO ask the countries that have reported cases to make plans to control the disease.
C. The number of people who got the flu reached more than 1,000 in Australia on Thursday.
D. The Hong Kong government ordered all schools to close for two weeks on Thursday.
57. This passage mainly tells us something about        .
A. WHO’s raising the pandemic flu alert
B. how to prevent this kind of flu
C. people who got the pandemic flu
D. the ways to avoid the serious pandemic flu

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“Love your neighbor as yourself" is a saying familiar to most of us. It means that you must have he ability to love and accept yourself in order to form and keep satisfying relationship with others self-esteem means accepting yourself for who you really are, and believing that you are indeed a ivdrthwhile person who is deserving of love and respect from others.
Self-esteem is our sense of how good we feel about ourselves. It is based on our judgment of urselves, not on other people"s assessment, but simply on our own. Our self-esteem is not efaendent on our talent. Some very ordinary people feel very good about themselves, while other extranordinarily high achievers hold low opintions of themselves.
Self-esteem is the primary key to long-term stress managerment. Why? The first three sourees of stress are: predictable life event, unexpected changes and build-up of daily stresscs, These are much easier to handle when we believe in ourselves, A postive, healthy self-estcem gives us the “hardiness”(强健) to deal with the difficulities of life, and to see them as challenges to be met, rather than threals to be feared.
The forth category of streesons is entirely the result of a low self-esteem. It is the category of stress that is most common and tiring over the long run. This kind of stress cannol be overcome, or evenchanged, until the self-exteem problems that cause it are corrected.
Learning to love yourself for who y ou are is the key to overcoming stress. Self-esteem comes form the self, and cannot be promoted by others. A person who fecls that his self-estecm comes from the approval of those around him or her is bound to self-destruct(自毁), One cannot keep the level of “performance” required to please everyone else, especially if that performance disagrees with who you are and is simply a facade that makes you popular with the world. When the applause is gone, there is nothing left.
Only those who can feel the strength of knowing who they are and those who can feel good about that will survive the stresses of life. Sef-esteem is the basis of contentment and positive living.
58． What is self-csteem?
A．A kind of positive lifestyle.
B．The impression we have on other people.
C．Our sense of how good we feel about ourselves.
D．Our understanding of how we are seen by others.
59．What is the key to overcoming stress according to the passage?
A．Removing yourself from stressful situation．
B．Learning to love yourself for who you are．
C．Facing the stress and dealing with it．
D．Getting help from friends．
60．What does the underlined word "facade" （in Para 5） mean?
A．A false appearance． B．A big worry．
C．A wrong action． D．A strange feeling．
61．The passage is written to ______．
A．tell people how to overcome stress
B．help people form good relationship with others
C．show the importance of feeling good about yourself
D．provide the different methods to get a clear view of yourself

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