A super drug that could remove Alzheimer’s (老年癡呆癥),heart disease and diabetes (糖尿病) and help people live to 100 is being developed by scientists. Their research is based on the identification of three genes that help prolong lives and prevent diseases which occur in old age. Medically controlling the proteins made by the “ longevity genes” will allow millions to live longer, predicts Dr Nir Barzilai.
Those whose DNA strongly features the three genes are 80 percent less likely to develop Alzheimer’s. The genes also fight against the deadly impact of smoking, poor diet, obesity and lack of exercise.
Already, several laboratories are working on a pill to imitate the benefits of the genes and Dr Barzilai thinks it could be tested within three years. The pill could remove some diseases that damage old age. “ The advantage of finding a gene that involves longevity is that we can develop a drug that will imitate exactly what this gene is doing,” he said.
Of the three longevity genes, two genes increase the production of so-called good cholesterol(膽固醇), which reduces the risk of heart disease. The third prevents diabetes. They were discovered by Dr Barzilai’s team while studying the DNA of 500 Ashkenazi Jews with an average age of 100. The chances of living that long are one in 10,000 but the group, which shared relatively few common ancestors, was 20 times more likely to hit the entury. Dr Barzilai said: “ 30 percent of them were obese or overweight and 30 percent smoked two acks of cigarettes a day for more than 40 years, however they can live to 100.”
But Andrew Ketteringham of the Alzheimer’s Society said: “Alzheimer’s disease, a most common disease, is likely to be caused by a combination of genetic disosition(遺傳傾向), lifestyles and life events. Many genes are probably involved.
小題1:Some people are able to live to 100 years because of ______.
A.a(chǎn) magical medicineB.three special genesC.good living habitsD.longevity proteins
小題2:Why does the discovery of the longevity genes mean a lot?
A.Because it can bring great benefits to scientific labs.
B.Because it can help people change their unhealthy genes
C.Because it helps produce a drug that can make people live longer.
D.Because it will help scientists build up a new branch of biology.
小題3: From Paragraph 4 we can infer that ________.
A.longevity genes can create good cholesterol.
B.the volunteers share some common ancestors
C.bad habits are likely to have no effect on the volunteers
D.longevity genes protect the volunteers against bad habits
小題4:What is Andrew Ketteringham’s attitude toward the study?
A.PositiveB.NegativeC.CriticalD.Cautious

小題1:B
小題2:C
小題3:D
小題4:D
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科目:高中英語 來源:不詳 題型:閱讀理解

Bad moods can actually be good for you, with an Australian study finding that being sad makes people less gullible (輕信), improves their ability to judge others and also boosts memory.
The study, authored by psychology professor Joseph Forgas at the University of New South Wales, showed that people in a negative mood were more critical of, and paid more attention to, their surroundings than happier people, who were more likely to believe anything they were told.
"Although positive mood seems to promote creativity, flexibility, cooperation, and reliance on mental shortcuts, negative moods trigger (引發(fā)) more attentive, careful thinking, paying greater attention to the external world," Forgas wrote.
"Our research suggests that sadness ... promotes information processing strategies best suited to dealing with more demanding situations."
For the study, Forgas and his team conducted several experiments that started with inducing happy or sad moods in their subjects through watching films and recalling positive or negative events.
In one of the experiments, happy and sad participants were asked to judge the truth of urban myths and rumors and found that people in a negative mood were less likely to believe these statements.
People in a bad mood were also less likely to make snap decisions based on racial or religious prejudices, and they were less likely to make mistakes when asked to recall an event that they witnessed.
The study also found that sad people were better at stating their case through written arguments, which Forgas said showed that a "mildly negative mood may actually promote a more concrete, accommodative and ultimately more successful communication style."
"Positive mood is not universally desirable: people in negative mood are less prone to judgmental errors, are more resistant to eyewitness distortions(扭曲)and are better at producing high-quality, effective persuasive messages," Forgas wrote.
The study was published in the November/December edition of the Australian Science journal.
小題1:_ The study suggests that when someone is in a bad mood, he ________ .
A.is particular about everythingB.shows less concern about others
C.is willing to believe what he hearsD.cares more about his surroundings
小題2:_Which of the following is connected with positive mood?
A.New ideas.B.Being stubborn.C.Being careful.D.Concentration.
小題3:_ How did researcher put the subjects in good or bad moods?
A.By watching sports programs.B.By listening to happy or sad stories.
C.By dealing with demanding situations.D.By thinking back on their past experience.
小題4:_ Which of the following statements is TRUE according to the text?
A.Positive mood leads to better judgement.
B.Sad people remembered what they saw precisely.
C.Cheerful people were less likely to believe rumors.
D.People in bad mood tend to make quick decisions.
小題5:_The author intends to convince(說服) us that __________ .
A.Joseph Forgas made a great discoveryB.bad moods can actually be good for us
C.we should think positively and negativelyD.the Australian study is of practical value

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科目:高中英語 來源:不詳 題型:閱讀理解

The key to reaching or staying at a healthy weight is regular exercise and good eating habits. Teens should get 60 minutes or more of physical activity a day. Note the word “activity”. As long as you’re getting your body moving, it doesn’t have to mean doing complicated exercises or going to the gym (體育館) every day. All that matters is that each week you get the right balance of activity, including aerobic (有氧健身法的) strength building, and flexibility (柔韌性) exercise. Make exercise a habit by scheduling some every day.
On days when you have soccer practice or an aerobics class, you may have no trouble exercising for an hour or more. But most of us are busy, and 60 minutes a day of activity seems like a lot of time. The good news is that it’s OK to divide it into shorter “exercise breaks” throughout the day. Just as you might have a healthy snack to stop yourself getting hungry, exercise snacks can keep energy level high. So get up 15 minutes earlier and do some yoga or other stretching (伸展) activity. Fast walk or jog (慢跑) for 15 minutes at lunch. Do the same thing after school ­­­­­or walk or bike home. Add to that taking the stairs, gym class, and walking between classes during the day, and you’ve probably reached your 60 minutes.
Here are 5 simple ways to make an exercise lifestyle change:
1. Start today. Go outside for a walk.
2. Take the stairs instead of the elevator.
3. Instead of driving, walk or bike to places like school or a friend’s house.
4. Clean your room or wash the car.
5. Limit your time watching TV, using the computer, or playing video games--and when you do play, try some games that get you moving.
小題1: The underlined phrase “exercise snacks” in the second paragraph probably means ________.
A.food eaten before exercise
B.food eaten during exercise
C.shorter “exercise breaks”
D.a(chǎn) new kind of exercise
小題2:Why should we have exercise snacks every day?
A.Because they can stop us getting hungry
B.Because they can keep energy level high
C.Because they can include many kinds of sports
D.Because they are more likely to relate to our daily life
小題3:Which of the following is NOT mentioned in the passage?
A.To go hiking on your holidays
B.To spend less time on computer games
C.To go to school on foot or by bike
D.To do some housework at home
小題4:What will be most probably discussed in the following paragraph?
A.Losing weightB.Good eating habitsC.Exercising your brainD.Outdoors exercise
小題5: What would be the best title for this passage?
A.Regular exerciseB.School exerciseC.Indoors exercise D.Difficult exercises

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科目:高中英語 來源:不詳 題型:閱讀理解

Not all think laughter is the best medicine, but it seems to help.So scientists carried on a new study of diabetes (糖尿。 patients who were given a good dose of humor for a year to prove it.
Researchers divide 20 high-risk diabetic patients into two groups.Both groups were given standard diabetes medicine.Group L viewed 30 minutes of humor of their choice, while Group C, the control group, did not.This went on for a year of treatments.
By two months into the study, the patients in the laughter group had lower level of the hormones epinephrine (腎上腺素), considered to cause stress, which is known to be deadly.After the 12 months, HDL cholesterol rises 26 percent in Group L but only 3 percent in Group           C.In another measure, C-reactive proteins, a maker of heart disease, drop 66 percent in the laughter group but only 26 percent in the control group.
“The best doctors believe that there is a physical good brought about by the positive emotion, happy laughter,” said study leader Lee Berk of Loma Linda University.And other research has found that humor makes us more hopeful.Still, more study is needed, Berk said.The research by Berk found that humor can bring about similar changes in body chemistry, which was proved in the new study.The research result will be presented this month at the meeting in the US.Research at the University of Maryland School of Medicine shows that laughter causes the inner lining of blood vessels to expand, increasing blood flow in a way thought to be healthy.
“Lifestyle choices have an important effect on health and these are choices which we and patients should pay attention to, rather than prevention and treatment,” Berk said in a statement this week.
小題1:Why did the scientists carry on the new research?
A.To find out if laughter was good to health.
B.To discover the best medicine to cure diabetes.
C.Because the number of diabetic patients is the largest in the world.
D.Because diabetic patients need more laughter than other patients.
小題2:After 12 months into the study, ___________.
A.C-reactive proteins increase 66 percent in Group C
B.the level of the hormones epinephrine stays the same in both groups
C.the level of the hormones epinephrine has dropped
D.C-reactive proteins reduced 66 percent in Group L
小題3:The underlined part “HDL cholesterol” in Paragraph 3 must be _______.
A.something bad to our healthB.something good to our health
C.a(chǎn) kind of wonderful medicineD.a(chǎn) kind of dangerous disease
小題4:In what way does laughter benefit people’s health?
A.Blood is made thick by laughter.B.Laughter makes blood vessels thin.
C.Laughter increases blood pressure.D.Laughter makes blood flow fast.
小題5:According to Berk, we should _________.
A.choose lifestyles carefullyB.change our lifestyles
C.prevent our lifestyles in advance D.pay less attention to the positive emotion

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科目:高中英語 來源:不詳 題型:閱讀理解


Doctors have known for a long time that extremely loud noises can cause hearing damage or loss.The noise can be the sound of a jet airplane or machines in factories of loud music or other common sound at home and at work.A person only needs to hear the noise for little more than one second to be affected.
An American scientist has found that using aspirin (阿斯匹林) increase the temporary (暫時(shí)的)hearing loss or damage from loud noise.He did an experiment using a number of students at a university who all had normal hearing.He gave them different amounts of aspirin for different periods of time, then he tested their hearing ability.He found that students who were given four grams of aspirin a day for two days suffered much greater temporary hearing loss than those who did not use aspirin.The hearing loss was about two times as great.
The scientist said millions of persons in the U.S.use much larger amounts of aspirin than were used in his experiment.He said these persons face a serious danger of suffering hearing loss from loud noise.
1.Doctors have long known that__________.
A.one may lose his hearing when he hears a terribly loud noise.
B.one may become deaf when he hears a loud noise.
C.loud noises can cause damage to the hearing of the young people only
D.common sounds at home are not harmful to the ear
2.This passage suggests that one’s hearing________.
A.will be damaged even if he has heard a loud noise for only little more than one second
B.will be damaged even if he has heard a loud noise less than one second
C.will not be damaged if he has heard a loud noise for only little more than one second
D.will not be damaged if he has little more than one second to get ready
3.One conclusion you can draw from the passage is that aspirin________.
A.makes hearing damage from loud noise worse
B.should never be taken more than four grams
C.can damage one’s hearing when it is given more than four grams daily
D.a(chǎn)lways increases hearing loss by two times
4.Millions of Americans are in danger of suffering hearing loss because they__________.
A.take too much aspirin            
B.often take air trips
C.like listening to loud music       
D.have too much loud noises at home and at work
5.The American scientist did his experiment in order to find ________.
A.how much aspirin would affect a person’s hearing
B.how much aspirin should be given in the treatment of the patients with hearing damage from loud noise
C.whether aspirin would increase the temporary hearing damage from loud noises
D.whether the people who had hearing damage should use aspirin

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科目:高中英語 來源:不詳 題型:閱讀理解

American society is not nap (午睡)friendly . In fact , says David Dings , sleep specialist at the University of Pennsylvania School of Medicine , “There’s even a prohibition (禁止) against admitting we need sleep”. Nobody wants to be caught napping or found asleep at work . To quote a proverb : “Some sleep five hours , nature requires seven , laziness nine and wickedness(淘氣的) eleven.”
The way not to fall asleep at work is to take naps when you need them . “We have to totally change our attitude toward napping ,” says Dr. William Dement of Stanford University , the godfather of sleep research .
Last year a national commission led by Dement identified(發(fā)現(xiàn)) an “American sleep debt” which one member said was as important as the national debt . The commission was concerned about the dangers of sleepiness : people causing industrial accidents or falling asleep while driving . This may be why we have a new sleep policy in the White House . According to recent reports , President Clinton is trying to take a half---hour snooze (瞌睡) every afternoon .
About 60 percent of American adults nap when given the opportunity . We seem to have “a mid afternoon quiet phase ,” also called “a secondary sleep gate .” Sleeping 15 minutes to two hours in the early afternoon can reduce stress and make us refreshed . Clearly , we were born to nap .
We superstars of snooze don’t nap to replace lost shut--eye or to prepare for a night shift . Rather , we “snack” on sleep ,whenever , wherever and at whatever time we feel like it . I myself have napped in buses , cars , planes and on boats ; on floors and beds ;and in libraries ,  offices and museums .
小題1:The research done by the Dement Commission shows that Americans     .
A.don’t like to take naps
B.a(chǎn)re terribly worried about their national debt
C.think that lack of enough sleep causes many accidents
D.have caused many industrial and traffic accidents
小題2:The purpose of this article is to     .
  1. warn us of the wickedness of napping 
B. explain the danger of sleepiness
C. discuss the side effects of napping
D. convince the reader of the necessity of napping
小題3:The “American sleep debt”(Line 1 , Para .3) is the result of      .
  1. the traditional misconception the Americans have about sleep
  2. the new sleep policy of the Clinton Administration
  3. the rapid development of American industry
  4. the Americans’ worry about the danger of sleepiness
小題4:The second sentence of the last paragraph tells us that it is      .
  1. preferable to have a sound sleep before a night shift
  2. good practice to eat something light before we go to bed
  3. essential (基本的) to make up for lost sleep
  4. natural to take a nap whenever we feel the need for it

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科目:高中英語 來源:不詳 題型:閱讀理解

閱讀文章后,從第55至58題所給A、B、C、D四個(gè)選項(xiàng)中,選出最佳答案
America’s No.1 health problem?A report published by the American Institute of Stress claims the biggest threat to health today is neither cancer nor AIDS.The report says:“it has been estimated that 75-90 percent of all visits to primary care physicians are for stress-related problems.’’
It is no exaggeration(夸張)to say that people today are being attacked by stress.According to the National Consumers League,“Work is the top source of stress for adults who have problems and stress in their lives(39%).Other sources include health(10%),concern about the economy(9%)and concern about international conflict and terrorism(4%)”
However, stress is hardly unique to the United States A British survey in 2005 estimated that ‘‘over half a million individuals in Britain believed in 2004 that they were experiencing work-related stress at a level that was making them ill”.As a result of“work-related stress,depression or anxiety”, there are“an estimated thirteen and a half million reported lost working days per year in Britain”
The picture is no less bleak in mainland Europe. According to the European Agency for Safety and Health at Work.“work-related stress has been shown to affect millions of European workers across all types of employment sectors’’ One survey revealed that there are “about 41 million workers affected by work-related stress each year.”
What about Asia?A report issued by a conference held in Tokyo concluded,“Job stress is a common concern among many countries in the world,both developing and industrialized countries”.The report observed that“several countries in East Asia,including China and Korea, have rapidly industrialized and economically grown”.These countries now have a lot of concerns on job stress and its harmful effects on workers’ health.
小題1:Which of the followings is NOT true?
A.Cancer and AIDS are not so threatening as health problems caused by stress.
B.Stress is always from working and living pressure.
C.More than one third of adults suffer from stress problems in America.
D.Stress has become a world-wide problem.
小題2:What does the sentence“The picture is no less bleak in mainland Europe’’ probably mean?
A.There is no hope for mainland Europe.
B.There is no working stress in mainland Europe.
C.The picture in mainland Europe is very beautiful.
D.The stress situation in mainland Europe is serious too.
小題3:We can infer from the last paragraph that      
A.Asian people lead a better life
B.industry and economy have grown rapidly in China
C.some Asians have health problems from employment stress
D.the rapid economical development is the main reason for stress
小題4:What would be the best title for the text?
A.Attacked by StressB.Attention to Health
C.Effects of Stress D.Health Report

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科目:高中英語 來源:不詳 題型:閱讀理解


Recently some American scientists have given a useful sincere piece of advice to people in industrialized nations that they would be much healthier if they ate more of the same kind of food eaten by humans living more than 10,000 years ago.
The scientists say that the human body has changed very little since humans first appeared on the earth, but the way we live has changed greatly. Our body has not been able to deal with these changes in life style and this has led to new kinds of sicknesses. These new sicknesses were not known in ancient times, so they are called “diseases of civilization”. Many cancers and diseases of the blood system, including heart attacks and strokes ( 中風(fēng) ) are examples of such diseases.
Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none. Ancient people also got a great deal of physical exercise, but a change in food is one of the main differences between life in ancient times and that of today.
Stone-age people hunted wild animals for their meat, which had much less fat than domestic or tame ones ( 家畜 ). They also ate a lot of fresh wild vegetables and fruits. They didn’t have milk or any other dairy products, and they made very little use of grains. But today, we eat a large amount of these. We eat six times more salt than our remote ancestors. We eat more sugar. We eat twice as much fat but only one third as much protein and much less vitamin C.
People today probably do not want to live the way people thousands of years ago did, but scientists say that we would be much healthier if we ate much the same way as remote ancestors did, cutting the amount of fatty, salty and sweet food.
67. What is the main cause that people suffer from a lot of new sicknesses?
A. Ancient people did a great deal of physical exercise.
B. People today have a lot of alcohol.
C. People today have more tobacco.
D. Food today is quite different from that of ancient times.
68. Which of the following belongs to the dairy products?
A. Milk             B. Corn     C. Pork            D. Flour
69. New kinds of sicknesses have been found because ________.
A. the human body has changed compared with humans who first appeared on the earth
B. the way we live has changed a little
C. our body can’t deal with the changes in life style
D. the way we live today is proper for the human body
70. According to some scientists, Stone-age people were much healthier than people today because they ate a lot of ________.
A. milk and other dairy products                        B. salt and sugar
C. wild animals, fresh wild vegetables and fruits     D. grain foods

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科目:高中英語 來源:不詳 題型:完形填空


第一節(jié):完形填空(共10小題;每小題2分,滿分20分)       
閱讀下面短文,從短文后所給各題的四個(gè)選項(xiàng) (A、B、C和D) 中
選出能填入相應(yīng)空白處的最佳選項(xiàng)。
Exercise is often said to be good for everyone.But a new study has shown that exercise could be _  21     especially for people past middle age.The study was done with mice.It showed that although mild exercise   22       a good effect on the muscles of young mice, it   23           the muscles of mice past middle age.
The three groups of mice in the experiment were _ 24        __in age at young, middle-aged, and elderly humans.The mice were__25     _on a thread-mill (踏車) 30 minutes a day for a five-week period.At the end of that time, the young mice’s leg muscles had increased almost 30 percent in weight, but those of the old mice were reduced by 25 percent.No  26            pattern showed for the middle-aged mice.
David Gershon, an expert who carried out the experiment, explained that the older mice’ muscles were probably already_ 27      _down and that exercise worsened the _ 28       _.An earlier study by Gershon showed that middle-aged mice benefited from exercise if they started exercising young and continued it.
It’s clear that because the tests were done on mice, drawing conclusions about humans is too early.But the studies do not totally _ 29       _the theory that exercise is good under any conditions.Let’s use the tests on mice as a _ 30         _ for other studies.
21.A.beneficial        B.friendly          C.tiring               D.unhealthy
22.A.made               B.took             C.had                 D.brought
23.A.harmed            B.helped         C.improved         D.reduced
24.A.a(chǎn)imed              B.connected     C.indicated          D.represented
25.A.directed           B.driven           C.hung               D.placed
26.A.clean               B.clear            C.proper             D.visible
27.A.breaking          B.failing           C.letting             D.slowing
28.A.body               B.condition               C.situation          D.state
29.A.a(chǎn)ppreciate        B.a(chǎn)ssist            C.promote           D.support
30.A.bridge             B.means             C.proposal          D.warning

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