Two studies are suggesting that some overweight people do not face an increased risk of developing heart disease. Researchers also found that some individuals of normal body weight have an increased r 题目和参考答案——青夏教育精英家教网—

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Two studies are suggesting that some overweight people do not face an increased risk of developing heart disease. Researchers also found that some individuals of normal body weight have an increased risk of the disease.

Being overweight does increase your risk of medical problems, but the studies found that not all heavy people are less healthy than thin people.

In one study, American researchers examined medical records from over 5000 men and women. Each person had taken part in a separate study from 1999 to 2004. The searchers found that about 51% of them were overweight or obese. About 32% were obese, but considered metabolically(关于新陈代谢的)healthy. This means they had no evidence of problems in tests for high blood pressure or other factors linked to heart disease. However, more than 23% of people who were at a healthy weight were unhealthy in two or more aspects Judith WylieRosett helped carry out the American study. She says the finding show that all obese person can still be healthy. She believes that having body fat is not as important as where the fat is found on body. It's reported that twothirds of Americans are considered overweight or obese.

A second study is suggesting that fat in the liver(肝)may be an important health risk. Norbert Stefan and his team closely examined 314 people.They measured how much body fat each person had, and where it was on the body. To do this ，they used medical imaging tests. They discovered that obese people could have healthy hearts. Their results suggest that fat in the liver is more dangerous than fat in other areas.

The results of both studies were published recently in the Archives of Internal Medicine.Professor WylieRosett says the findings don't mean that people shouldn't be concerned about obesity. Experts say there are several diseases linked to obesity that make it more dangerous to be fat than thin. They say people should see their doctor to learn what health risks they may be facing and what behaviours should be changed to improve health.

41．What was found in 23% of the healthy people examined?

A．No factors linked to heart disease.

B．They were unhealthy in two or more aspects.

C．High blood pressure.

D．No evidence of problems.

42．Professor WylieRosett agrees that people should________.

A．avoid becoming obese

B．not worry about becoming obese

C．worry about becoming thin

D．not be afraid of several diseases

43．The underlined word“obese”in the third paragraph probably means “________”．

A．being too thin B．being healthy

C．being too fat D．being unhealthy

44．The text is mainly about evidence that some people can_______.

A．be both fat and healthy

B．develop heart disease

C．increase weight

D．have too much fat in the liver

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Modern science suggests that a healthy lifestyle matters much to how long you can live and how well you live. Here are some tips for you to form a healthy lifestyle.
Keep a scientific diet. Keep in mind that sugar can be removed from our diet completely. Over intake of sugar is one of the main reasons for getting fat. Over intake of protein or fat and low intake of fiber can also lead to getting fat. We need only a few grams of protein every day to keep our body in order. Like rain to crops, not the more the better.
Be always in a good mood. There is a relationship between the mood and health. A good mood keeps you in high spirits. Thanks to the Internet, we can enjoy and learn much without going out. Take a look at some online shops and pick up some bargains, enjoy music and movies and chat with some good friends. Just keep happy.
Enough sleep. Two studies show the reasons why teens and adults don’t have enough sleep. With teens, a major reason is mobile phone use; with adults, it’s work. Meanwhile, a third study of young children shows that a lack of sleep in early life may lead to serious problems in future. Everyone needs at least 8-hour sleep to recover from tiredness and the hurt caused by hard work in the daytime.
Proper exercise. Do exercise to keep away from fatness. Because of the quick pace of modern life, you don’t have time to do exercise every day, but at least three times a week and 45 minutes each time.
【小题1】The author wrote the passage to _______.

A．tell the readers how to take proper exercise every day

B．provide some advice on how to form a healthy lifestyle

C．ask people to care about their health rather than their work

D．make some surveys among those who have health problems

【小题2】 Which of the following can lead to getting fat according to the passage?

A．low intake of protein.

B．low intake of fat.

C．over intake of fiber.

D．over intake of sugar.

【小题3】The main reason why teenagers don’t have enough sleep is that they _______.

A．use mobile phones too much

B．have too much homework

C．eat too much sugar every day

D．don’t have enough exercise

【小题4】How many minutes do you need to do exercise at least every week?

【小题5】What can we conclude from the passage?

A．We must take in much sugar for our body’s functioning well.

B．The Internet leads to more health problems.

C．The least sleep time needed for adults is less that that of teens.

D．We need to do many things to form a healthy lifestyle.

Life is to be enjoyed. There’s no point in giving up something you enjoy unless you get something back that’s even better. When people eat more healthfully, exercise, quit smoking, and manage stress better, they find that they feel so much better that it reconstructs the reason for making these changes from fear of dying to joy of living. The latest studies show that when you exercise and eat right:

YOUR BRAIN receives more blood flow and oxygen, so you become smarter, think more clearly, have more energy, and need less sleep. Two studies showed that just walking for three hours per week for only three months caused so many new neurons (神经细胞) to grow that it actually increased the size of people’s brains!

YOUR FACE receives more blood flow, so your skin glows more and wrinkles less. You look younger and more attractive. In contrast, an unhealthy diet, chronic emotional stress and smoking reduce blood flow to your face so you age more quickly. Smoking accelerates aging because nicotine causes your arteries (动脉) to narrow down, which decreases blood flow to your face and makes it wrinkle earlier. This is why smokers look years older than they really are.

YOUR GENES change. In May, a study was published in the Proceedings of the National Academy of Sciences showing that changing your lifestyle changes your genes.

YOUR TELOMERES (染色体端粒) get longer. Telomeres are the ends of our chromosomes (染色体) that control how long we live. As telomeres become shorter, then cells age more quickly, thus shortening your life.

Besides, one of the most interesting findings in the study was that the mothers’ awareness of stress was more important than what was really occurring in their lives. The researchers gave the women a questionnaire and asked them to rate on a three-point scale how stressed they felt each day, and how out of control their lives felt to them. The women who were aware that they were under heavy stress had significantly shortened and damaged telomeres compared with those who felt more relaxed. On the contrary, some of the women who felt relaxed despite raising a disabled child had more normal-appearing telomeres.

In other words, if you feel stressed, you are stressed; if you feel fine, you are fine.

1.Which of the following are good for lengthening one’s life, according to the passage?

① eat healthy food ② drink plenty of water ③ take exercise ④ get up early

⑤ go to sleep early ⑥ release one’s stress

A. ①③⑥ B. ①②③ C. ①⑤⑥ D. ③④⑥

2.The underlined words “your skin glows” in Paragraph 3 are closest in meaning to _________.

A. your skin becomes white as there is plenty of sunshine

B. your skin becomes smooth as there is much blood in it

C. your skin looks pink as you are healthy

D. your skin becomes soft as you exercise enough

3.In the author’s opinion, when you exercise and eat right, you will experience some changes EXCEPT _________.

A. brains becoming cleverer B. faces having fewer wrinkles

C. arteries turning narrower D. genes being changed

4.From the last but one paragraph we learn that _________.

A. mothers will have more damaged telomeres if they raise a disabled child

B. mothers don’t know how to handle stress effectively

C. some women were asked to fill out a questionnaire about educating children

D. mothers’ positive attitudes are the key to managing their stress

5.The best title for the passage would be _________.

A. Eat better, live better B. Feel better, live longer

C. Less stress, fewer diseases D. Smoke more, age sooner

Researchers have announced the result of two studies on the health effects of the drug aspirin．One study shows aspirin can sharply reduce the chance that a healthy, older man will suffer from a heart attack．

The study offered two new results from earlier findings, It said taking one aspirin pili every other day helped only healthy men over the age of fifty．It also said aspirin gave the greatest protection against heart attacks to men with low blood cholesterol（胆固醇）levels．

Earlier in the United States began a major aspirin study in the early 1980s．It included 22,000 healthy men doctors．Ail were between the ages of forty and eighty-four．More than 11,000 of the doctors took a harmless pill that contained no drug．The men did not know which kind of pill they were taking．

The doctors who took aspirin suffered 44% fewer heart attacks than those taking the harmless pill．139 men who took aspirin suffered from heart attacks．Ten of them died．239 men who did not take aspirin suffered from heart attacks．Twenty-six of them died．

The researchers said the doctors' study provides clear proof that taking aspirin can prevent a first heart attack in healthy, older men．They said, however, the result does not mean every man over the mage of fifty should take aspirin．They said aspirin couldn't help men who do not eat healthy foods, who smoke cigarettes and who are fat．The researchers said men who think they wou3d be helped by taking aspirin should talk with their doctors first．

1.We may learn that the new use of aspirin is ______．

A．to treat heart disease

B．to reduce the chance of a heart attack in old men

C．to protect old men

D．to reduce the blood cholesterol levels

2.Aspirin can help those who ______．

A．are older and healthy

B．know how to keep fit

C．are fat and smoke cigarettes

D．are suffering from heart attack

3.At last the researchers advised us to take aspirin _____.

A．as we like

B．with care

C．every day

D．if we are over fifty

4.From the experiment we can conclude that about ______ of people who suffered from heart attacks without aspirin died．

A．7%

B．19%

C．11%

D．44%

Two new studies suggest that modern running shoes could increase the risk of injuries to runners.

One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine. Sometimes they wore running shoes. Other times they ran barefoot.

Researchers from the JKM Technologies Company in Virginia, the University of Virginia and the University of Colorado did the study.

They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.

The study appeared in the official scientific journal of the American Academy of Physical Medicine.

The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.

They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.

Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.

Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come

down first. Also, the heel generally has thick material under it to soften landings.

60. How many organizations are involved in the two studies?

A. Three. B. Four. C. Five. D. Six.

61. What can we learn from the text?

A. Most running shoes are designed improperly.

B. The design of high heels is better than that of running shoes.

C. No one will run with running shoes in the future.

D. Both of the studies are done in America.

62. Why do running shoes increase the risk of injuries to runners?

A. They could create stress.

B. They’re too big and heavy.

C. They can affect the way the runners land.

D. Their heels can soften landings.

63. How did the researchers do the two studies?

A. By practising. B. By comparing. C. By questioning. D. By reasoning.

Modern science suggests that a healthy lifestyle matters much to how long you can live and how well you live. Here are some tips for you to form a healthy lifestyle.

Keep a scientific diet. Keep in mind that sugar can be removed from our diet completely. Over intake of sugar is one of the main reasons for getting fat. Over intake of protein or fat and low intake of fiber can also lead to getting fat. We need only a few grams of protein every day to keep our body in order. Like rain to crops, not the more the better.

Be always in a good mood. There is a relationship between the mood and health. A good mood keeps you in high spirits. Thanks to the Internet, we can enjoy and learn much without going out. Take a look at some online shops and pick up some bargains, enjoy music and movies and chat with some good friends. Just keep happy.

Enough sleep. Two studies show the reasons why teens and adults don’t have enough sleep. With teens, a major reason is mobile phone use; with adults, it’s work. Meanwhile, a third study of young children shows that a lack of sleep in early life may lead to serious problems in future. Everyone needs at least 8-hour sleep to recover from tiredness and the hurt caused by hard work in the daytime.

Proper exercise. Do exercise to keep away from fatness. Because of the quick pace of modern life, you don’t have time to do exercise every day, but at least three times a week and 45 minutes each time.

1.The author wrote the passage to _______.

A. tell the readers how to take proper exercise every day

B. provide some advice on how to form a healthy lifestyle

C. ask people to care about their health rather than their work

D. make some surveys among those who have health problems

2. Which of the following can lead to getting fat according to the passage?

A. low intake of protein.

B. low intake of fat.

C. over intake of fiber.

D. over intake of sugar.

3.The main reason why teenagers don’t have enough sleep is that they _______.

A. use mobile phones too much

B. have too much homework

C. eat too much sugar every day

D. don’t have enough exercise

4.How many minutes do you need to do exercise at least every week?

A. 45 minutes. B. 90 minutes. C. 115 minutes. D. 135 minutes.

5.What can we conclude from the passage?

A. We must take in much sugar for our body’s functioning well.

B. The Internet leads to more health problems.

C. The least sleep time needed for adults is less that that of teens.

D. We need to do many things to form a healthy lifestyle.

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