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.

小題1:A
小題2:C
小題3:D
小題4:D
         
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:閱讀理解

Over the past 20 years, AIDS and war have claimed the parents of 2.4 million Ugandan children.When Alexis Hefley first visited the country,, in 1993, she saw the children’s sorrow, but the former Texas banker also spotted "a world of possibility".She watched as they danced for tourists to earn money, and she had a thought: If people in America could see them perform, they’d support them too.                   
The children’s passion and talent inspired Hefley to work with the kids at an orphanage(孤兒院)in Kampala, the capital city of Uganda, to organize a traveling dance troupe(團).The goals: to give the problems in Uganda a human face, to raise awareness and to raise money.
The first tour touched down at six American cities in 1994.Today, the 22-member troupe, known as the Spirit of Uganda, travels across America every two years.The young performers bring their energy and joy to audiences across the U.S.a(chǎn)nd help support hundreds of Ugandan orphans back home.Among the young dancers, some earn scholarships to attend the U.S.colleges, and then return to their country to help rebuild it.
Photojournalist Douglas Menuez first photographed the troupe in 2006 -?a project that led to his new book, Transcendent Spirit, from which these images are drawn.At each performance, the dancers’ faces show pure joy, quite an achievement given the hardships they’ve faced."They look to the future, not the past," explains Menuez."They embrace beauty and good in the world." As one dancer puts it, "People think we have lost our parents.We’ve had so many problems.But then they see us perform.They see our smiles.And they learn that life goes on."
小題1:What are the first two paragraphs mainly about?     
A.How miserable Ugandan orphans’ life is.
B.How the dance troupe was set up.
C.How the young dancers earned money.
D.How the orphans lost their parents.|
小題2:What do we learn about the Spirit of Uganda?            
A.It was started by a journalist.
B.It travels across the U.S.a(chǎn)nnually.
C.It consists of two dozen performers.
D.Its dancers have chances to study in the U.S.
小題3:In the eyes of Menuez, the young performers are_____. 
A.beautifulB.talented C.optimisticD.humorous
小題4:What might be the most suitable title for the passage?      
A.Ugandan orphans turn tragedy into dance
B.Transcendent Spirit: A close look at Uganda
C.AIDS and war are claiming people’s lives
D.Lots of people are helping Ugandan orphans

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

American farmers are raising five percent more goats for meat these days.
Goat meat is high in protein(蛋白質(zhì))and lower in unhealthy fat than many other meats.Even so,the industry is small compared to chicken,beef and pork. But immigration has brought more of a taste for goat to America from all over the world.
Experts from the University of Illinois offer some questions for people to consider if they are thinking about raising goats.
First of all,do you understand that there always has to be someone to care for the goats?
◆How much land do you have available? And how good is it? Poor ground may support two to four goats on half a hectare.Better grassland can support six to eight. If goats and cattle share the land,two goats can be added for each cow. The goats will eat weeds and other plants that cattle do not like.
◆Do you have buildings for the number of female goats you plan to keep during winter? An open,cold,dry barn is better than a closed,warm barn where the air is wet.
◆Do you have the equipment to clean barns(畜棚) and to harvest hay(草料) to feed your goats? Or will you get someone else to do it,or buy the hay?
The experts say a profitable business in goat meat may take three to five years to establish.And, of course, there are no guarantees .
小題1:On which section of a newspaper will this passage appear?
A.International AffairsB.Entertainment
C.AgricultureD.Culture
小題2:Which of the following is NOT a factor in making goat meat more popular?
A.Goat meat is healthy food.
B.Immigrants bring different tastes.
C.The industry still leaves room for profit.
D.Raising goats is challenging.
小題3:If someone has two hectares of good grass land, what is the maximum number of cows and goats he can raise?
A.32 cows and 64 goats.B.32 cows and 32 goats.
C.16 cows and 32 goats.D.8 cows and 16 goats.
小題4: What is the experts’ opinion about the goat-raising business?
A.You can make sure money.
B.You had better be cautious and patient.
C.Goats are hardly possible to raise.
D.Goat meat still needs to be recognized.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空


III、完型填空(共30分,每小題1.5分)
閱讀短文,根據(jù)內(nèi)容,從第36-55小題所給的A、B、C、D四個選項中,選擇最佳選項。
Sam backed his car out of the garage and drove two blocks to the highway. It 36 from the suburbs into Central City. Immediately he joined the steam of early-morning 37 that was flowing towards town. As he drove, he 38 Leon Poole. Poole was an odd man, clever in some ways, very stupid in 39. Poole had been a respectable 40 in a town near Central City. He had arranged with another man to 41 the bank at a time when an unusually large amount of cash was being held there. The other man had walked into the bank, waved a 42 at Poole, who was on duty, and taken the 43 . Only three men had known when the money would be there, so it was 44 that someone inside the bank must have 45 the robbery. Sam, the detective in 46 of the case, questioned Poole and the others, and released them, but had them all 47 closely. Two days later Poole, thinking he was 48 under suspicion(懷疑), arranged a meeting with the actual robber, who was a known criminal. The 49 arrested the robber and got a confession(坦白) from him. He 50 Poole as the man who had planned the whole thing.
The three officers who went to 51 the fat, soft, bank clerk didn’t expect trouble. 52 Leon Poole turned out to have a gun, and 53 it when they knocked at his door. His 54 hit one of the officers in the arm. 55 they had gone in after him, shooting.
36.A. led B. escaped      C. jumped      D. suffered
37.A. airline   B. traffic C. exercise      D. train
38.A. dealt with     B. talked with C. thought of  D. met with
39.A. rest       B. mind   C. action D. others
40.A. salesman       B. shop assistant     C. bank clerk  D. sales manager
41.A. defend   B. protect       C. rob     D. damaged
42.A. pole      B. finger C. stick   D. gun
43.A. money   B. interest       C. counter      D. car
44.A. doubtful       B.obvious       C. uncertain    D. important
45.A. planned B. prevented   C. hidden       D. blamed
46.A. place     B. possession  C. charge D. search
47.A. followed       B. watched     C. stood  D. communicated
48.A. no longer      B. on earth     C. once again  D. all the time
49.A. clerk     B. army   C. police D. firefighter
50.A. owned   B. named C. directed      D. grasped
51.A. visit      B. frighten      C. invite  D. arrest
52.A. Since    B. Meanwhile C. But     D. Although
53.A. threw    B. fired   C. stole   D. hid
54.A. sound    B. strength      C. anger  D. bullet
55.A. Basically      B. Naturally    C. Namely      D. Comfortably

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


All of my childhood and early, adult life, my mom weighed over 220 pounds (one pound =" 0.454" kilograms). I could feel the pain that my mom experienced with her fatness.
I was never uncomfortable about my mother, but I think she was uncomfortable about herself, and that feeling was painful for all of us. And she began to lose weight.
After more than twenty years of battling obesity(肥胖), my mother completed a forceful eighteen-month diet that left her ninety pounds lighter than before. A new woman was born! At age twenty-eight, I got a new mom! For the first time, I met the woman my mother truly was, the beautiful little lady under the fatness. It wasn’t so much her new body that was the surprise, but rather her new spirit.
To celebrate her new size and to devote herself to dancing again, my mother joined a “Mrs. Forty-Plus” competition, where she would have to model, give a speech and provide a dance performance. She told our family that she did not care if she won — she simply had always wanted to perform on stage.
She told each one of us, “I’m not doing it to win; I’m doing it to dance!”
The competition was exciting! I prayed that my mom would win, but while watching her on stage I was simply overjoyed just by her effort. To me, she had already won. She posed to perfection, her speech brought tears to everyone’s eyes, and her performance was wonderful.
That night, at age fifty-three, my mother was crowned (為......加冕) “Mrs. Forty-Plus”. She was the first person in our family to ever win such a title.
64. The first two paragraphs mainly show that the author’s mom was __________.
A. experienced      B. painful          C. comfortable        D. fat
65. After the author’s mom completed a forceful eighteen-month diet, she was about __________.
A. 85 kilograms    B. 41 kilograms      C. 130 pounds         D. 90 pounds
66. In order to join in the “Mrs. Forty-Plus” Competition, the author’s mom has to do the following EXCEPT __________.
A. providing a dance performance            B. telling a funny story about herself
C. giving a speech to a large number of people  D. wearing special clothes to show to people
67. The underlined part in Paragraph 6 means that __________.
A. the author’s mom succeeded in modeling and speaking
B. the author’s mom’s performance was very wonderful
C. the author’s mom was not successful in modeling
D. the author’s mom succeeded in making a speech

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空


第二節(jié):完形填空(共20小題;每小題1.5分,滿分30分)
閱讀下面短文,從短文后所給各題的四個選項(A、B、C和D)中,選出可以填入空白處的最佳選項。
Many facts suggest that children are overweight and the situation is getting worse, according to the doctors. I feel there are  36  reasons for this.
Some people blame the fact  37   we are surrounded by shops selling unhealthy, fatty foods,  _38  fried chicken and ice cream,  39  low price. This has turned out a whole generation of grown-ups  40  seldom cook a meal for themselves. If there  41  fewer of these restaurants, then probably children would buy less take-away food.
There is another argument that  42  parents for allowing their children to become overweight. I _43  this, because good eating habits begin early in life, long before children start to visit fast food shops. If children are given fried chicken and chocolate  44  healthy food, or are always allowed to choose  45  they eat, they will go for sweet and salty foods every time, and this  46  throughout their lives.
There is a third reason for this situation. Children these days  47  very little exercise. They do not walk to school. When they  48  home, they sit in front of  49  or their computers and play computer games.  50  is this an unhealthy pastime (消遣),it also gives them time to eat more  51  food.  52  they need is to go outside and play active games or sports.
The above  53   the main reasons for this problem, and therefore we have to  54  young people to be more active, as well as steering them away from fast food shops and  55 eating habits.
36. A. much               B. a number of       C. amount of               D. lot of
37. A. which              B. what             C. that                    D. whose
38. A. such as             B. so that            C. such that                 D. and so on
39. A. with                B. on                C. at                        D. to
40. A. which              B. whose              C. where                  D. who
41. A. were              B. was               C. is                    D. are
42. A. blame              B. blames            C. ask                    D. tell
43. A. agree on            B. agree at           C. agree in                 D. agree with
44. A. as well as            B. besides            C. rather than                      D. beside
45. A. that                B. what             C. which                   D. when
46. A. carry on            B. will carry out      C. will carry on                    D. carry off
47. A. take                B. go               C. walk                    D. jump
48. A. get to              B. go to                     C. arrive at                        D. get
49. A. the book            B. the television       C. the homework            D. the telephone
50. A. Either              B. And              C. Not only                 D. If
51. A. healthy             B. cold               C. delicious                D. unhealthy
52. A. What                B. That              C. Which                   D. Where
53. A. is                 B. are                C. was                    D. were
54. A. order              B. tell                     C. encourage               D. inform
55. A. good               B. healthy            C. nice                    D. bad

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


第三部分閱讀技能 (共三節(jié),滿分35分)
閱讀理解(共12小題;每小題1.5分,滿分18分)
閱讀下列短文,從每題所給的A、B、C、D四個選項中,選出最佳選項,并在答題卡上將該項涂黑。
TEENAGERS lead an exciting life in high school, making friends and dreaming about the future. However, as all young people know, teenagers have plenty of worries too.
Do you know what British teenagers worry about most? A survey by the UK's Department of Health shows that the top worries are losing weight (減肥) and fitting in (適應(yīng)). Over 100,000 teenagers took part in the research.
Losing weight is a big concern among teenagers. This may be an effect of famous people with perfect bodies around them.
Adolescence is a physically and emotionally difficult time. Teenagers want to feel good about their bodies.
It's also important for them to be accepted. Many teenagers were picked on (作弄) in high school. “Who should I eat lunch with?” “Who should I hang out with?” “Will I be accepted?” These questions are troubling many UK teenagers, according to the survey.
It's interesting to see that family background has an effect on teenagers' worries. Teenagers from low-income families worried more about losing weight and bullying (欺凌弱小). Teenagers from higher income families were more likely to worry about fitting in and peer pressure (同輩壓力).
49  According to the survey, British teenagers are most worried about ______.
A. fitting in and making money                      B. finding jobs and making friends
C. losing weight and being accepted                   D. making money and losing weight.
50.   Many teenagers are concerned about losing weight because ______.
A. they see thin famous people                              B. they care a lot about health
C. they don't have much money                                       D. they face problems in life
51.   The word “adolescence” in the fourth paragraph means ______.
A.幼兒期                          B.青春期                           C.青年期             D.老年期
52.   Suppose Jack is from a poor family; what do you think he may worry more about?
A. fitting in and losing weight                                B. fitting in and peer pressure
C. losing weight and bullying                                  D. losing weight and peer pressure

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


B
Over 2,000 years, the examination of the pulse has been a mysterious skill in Traditional Chinese Medicine. Although many westerners may have known something about methods like inspecting, listening and enquiring, pulse reading as a tool to determine physical condition is not common knowledge. It is therefore worth our effort to take a closer look at it.
There are three positions on each wrist which are used for analysis: the front, middle and back part, and analyzed at three different levels: superficial, middle and deep.
On the left wrist, the front position focuses on the condition of the heart and small intestine (小腸), the middle position concentrates on the functions of the liver and gall bladder, and the back position is connected with the kidney. The lungs and large intestine are the centre of attention in the front position on the right wrist, with the middle position focusing on the spleen and stomach and the back taking note of the “Gate of Vitality Fire’. This is the heat provider for all bodily functions.
In regards to the various levels, the superficial level reflects the state of energy, the middle level shows the state of blood flow, and the deep level is an indication of the state of the Yin organs. Suppose that the pulse in the left middle position was soft and smooth, neither superficial nor deep, it would suggest that the liver and gall bladder are in a good state of health.
Checking the pulse is actually far more complex. Doctors need to be able to recognize 26 different pulse categories. For example, a scattered pulse which is irregular and hardly noticeable, is a sign that a patient is critically ill and nearing death. Other categories include the rapid pulse, probably a sign of a fever; or the tense pulse, which may suggest that the patient is suffering from pain. Many pulses only have subtle differences; thus, pulse examination is often seen as being more than just a skill but an actual art form.
This kind of medical diagnosis can be affected by many factors, so before any examination, it is important that patients are in a relaxed physical and mental state so they can get the most accurate reading. The morning is often the best time to take such a reading, as a busy day in the office or vigorous exercise before seeing the doctor can influence the quality of the pulse. The right amount of pressure must be applied by the doctor for the right duration of time. Patients’ characteristics are also of importance. Children, for instance, have quick pulses and athletes have slower than usual ones. Even seasonal influences need to be taken into account.
59. Which of the following is the most suitable title for this passage?
A. Chinese Pulse Checking      B. Difficulties in Pulse Checking
C. What Makes a Good Doctor   D. Brief Introduction to Traditional Chinese Medicine
60. Which factor is NOT mentioned as possibly influencing the accuracy of a pulse reading?
A. Amount of force used.                         B. Time of day.     
C. Climate.                                          D. Body height.
61. From the passage we can infer that the writer believes __________.
A. Chinese medicine is too difficult to learn
B. pulse reading requires a long-time study and practice
C. doctors need to be familiar with Chinese history
D. pulse examination is unimportant and no longer necessary

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


第三部分:閱讀理解(共20小題,每小題2分,滿分40分)
As China’s women’s gymnastics team enjoyed the glory of winning the country’s first team Olympic gold medal at the 2008 Beijing Olympic Games,the young gymnasts took the opportunity to remind the world that they are old enough to compete.
Weeks before the Beijing Games, some international media raised questions about the ages of some of the members of China’s gymnastics team, particularly He Kexin and Jiang Yuyuan. They said the girls might be younger than 16, the minimum age for the Olympics. But the Chinese Gymnastics Association quickly provided copies of the gymnasts’ ID cards and passports, proving they are indeed old enough to compete.
In the final, He Kexin gave a clean performance on her favorite uneven bars(高低杠), earning the second highest score after falling from the bars during qualification. “Although I fell down in the qualification, I became more confident today to make up for my mistake and I finally made it.”She said. It was a great moment for head coach Lu Shanzhen. “Our team made history today and proved to the world that we are the best.” the coach said, “The gold medal is not only for the gymnastics team,but also for the whole Chinese delegation at the Beijing Games.”
The coach owed the team’s success to a series of reforms. The Chinese team used to train a 1ot, but competed less, which led to poor results in international competitions. To improve their ability to compete and to strengthen their psychological power, the Chinese team sent more team members to compete abroad, so they could bring a competitive spirit back to the team. All six gymnasts in the Olympic team final were selected from fierce competition, and they proved themselves today.
1. Before the Beijing Games started,some international media doubted whether ________.
A. Chinese women gymnasts could win the team gold medal
B. He Kexin would fall from the bars during qualification
C. Chinese women gymnasts could make history at the Beijing Games
D. some Chinese women gymnasts were old enough for the Games
2. Which of the following statements is NOT true?
A. The international media’s doubts proved to be true.
B. He Kexin’s fall in the qualification had no bad effect on her performance in the final competition.
C. Chinese women gymnasts’ success at the Beijing Games proved that the reforms did work.
D. Each team is made up of 6 members to compete for the team gold medal in women gymnastics.
3. In the opinion of Lu Shanzhen, the key to achieving success for athletes is to________.
A. practice harder than ever                    B. experience more competitions abroad
C. have strong psychological power                    D. have a competitive spirit
4. The main purpose of the text is to________.
A. tell a story     B. provide evidence           C. give a report            D. compare opinions 

查看答案和解析>>

同步練習(xí)冊答案