题目列表(包括答案和解析)
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.
Centuries ago, many houses in a bad state in London were torn down to make way for new streets.However, the construction project was put off for quite some time, and the foundations of the houses pulled down were left in the open.
One day, a team of scientists arrived, only to discover that, on the patches of the foundations blocked from sunlight for years, was growing wild plants, dotted with little flowers.Puzzlingly, some species were native to Mediterranean countries only.
Most of the destroyed houses had been built during the Roman invasion.Weighed down by piles of bricks and stones year after year, the seeds possibly brought here in Roman times had almost no hope for survival.However, once bathed in the sun, they came alive.
The little seeds were so fragile yet so persevering.Though bricks piled on them many years, they still remained alive.Once exposed to sunshine and rain, they immediately exhibited signs of life.A little seed, lying underground for hundreds of years, still cherished the hope to live on.But what if a man is stuck in a similar situation?
One year, a British expedition was marching through the boundless Sahara sands.With the sun hanging overhead, hot waves of sandy winds were blowing against their faces like hot iron grains.The men were suffering both thirst and anxiety.The last drop of water was gone.Just then, the captain brought out a water bottle, saying, “There is still one bottle of water left.However, no one is to drink any before going out of the desert.”
The bottle of water lent them confidence to get through the desert, and embodied their hope to live on.It was handed down the line of people.This changed into firmness the despair registered on the men’s faces.Finally the men walked out of the desert, shaking off the threat of death.Tears out of joy welled out, and trembling hands were trying to screw off the bottle cap and let out the water, which had supported them spiritually.Now, however, it was sand pouring out—a bottleful of sand!
Was it a bottle of sand that rescued them from the burning sun and the boundless desert? No, it was their firm faith, like a seed that had taken root in their hearts and that finally let them out of the awful desert.
1.Centuries ago, a team of scientists arrived in London and discovered _____, which made them confused.
A.some wild plants
B.some foundations of many old houses
C.many houses in a poor state
D.some little seeds
2.When the British expedition were marching through the Sahara, _____.
A.they had one bottle of water left
B.they had the last drop of water
C.the weather was anything but tolerable
D.they experienced thirst, anxiety and hunger
3.The underlined sentence in Paragraph 6 probably means _____.
A.the bottle of water changed the firmness on the men’s face into despair
B.the bottle of water transformed the men’s desperation into confidence
C.feeling heavy made the men strong rather than weak
D.feeling heavy changed the men’s hope into disappointment
4.What lesson can we learn from the passage?
A.Telling a lie is sometimes necessary.
B.Man can overcome any difficulty whatever it is.
C.A man can do no more than he can.
D.Where there is a seed, there is hope.
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Golf in the USA was until quite recently the hobby of old,middle class white men.Not any more.The fact that the class,age and race barriers that existed in the sport have finally been broken down is due almost entirely to two people.Tiger Woods and Michelle Wie.
Tiger Woods was born in California in 1975 and is one of the greatest golfers of all time.His ethnic background is marvelously rich and varied.His father Earl was of mixed of black,Chinese and Native American ancestry and his mother Kultida,who was originally from Thailand,also had Chinese and Dutch forefathers.
Woods became a professional golfer in 1996 and,less than a year later,astonished the world easily winning the prestigious Masters Colf Tournament,an annual event which takes place at the Augusta Golf Club in Georgia,USA.At 21,he was the youngest golfer ever to win the tournament,but much more important,he was also the first Asian American to do it.
Woods’amazing achievement is put into perspective when you realize that until 1990,no non-white American had ever been allowed to join Augusta Golf Club.Even in 2000,it only had two black members.In fact,in 1977,Clifford Roberts,the chairman of the club and founder of the Masters Tournament,proclaimed:“As long as 1 am alive,golfers will be white and caddies
(球童)will be black.”Roberts died not long after making this racist remark…
Fortunately,his views were not shared by his successors(接替者)and the dramatic appearance of Tiger Woods on the Golf scene radically changed attitudes to the sport and prompted a major surge of interest in the game among ethnic minorities end young people in the USA.
Michelle Wie,a Korean American born in 1989 whose mother was an amateur golf champion in Korea,will probably became the greatest woman golfer of all time.She’s 1.85 meters tall and she can play a golf ball further than most men.Like Woods,she has transformed the world of golf,and wants to do so in even more dramatic ways.She has expressed her determination to play on the men’s tournament circuit,not just the women’s,and has already appeared in several professional men’s tournaments.
Thanks to Woods and Wie,golf in America will never be the same again.
72.What is the text about?
A.Tiger Woods’life in playing golf.
B.The achievements of two golf players from ethnic minorities.
C.Michelle Wie’s determination.
D.Playing golf in USA was once the hobby of old,middle class while men.
73.Less than a year after turning professional.Tiger Woods
A.easily won a major golf tournament. B.nearly won a major golf tournament.
C.joined the Augusta Golf Club. D.won a completely new golf tournament.
74.Which of the following sentences is true?
A.Tiger Woods was of mixed black,Chinese,and Native America.
B.Tiger Woods was not the first Asian American to win the Tournament.
C.Tiger Woods’achievement was amazing because he was the youngest golfer.
D.Tiger Woods’dramatic appearance on the golf scene had the attitude to this sport in USA changed.
75.Michelle Wie’s ambition is to 。
A.play like Woods.
B.play in a dramatic way
C.compete on equal terms with male golfers.
D.hit the golf ball further than most men.
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