DoctorsinBritainarewarningofanobesity（肥胖症）timebomb,when...

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Doctors in Britain are warning of an obesity（肥胖症）time bomb, when children who are already overweight grow up. So, what should we do? Exercise more? Eat less? Or both? The government feels it has to take responsibility for this growing problem.

In 18th century paintings beauty is equated with rounded bodies and soft curves. A good example can be the cheerful Mr. Pickwick, who is the hero of the novel by Charles Dickens, is plump (胖乎乎的), and happy. But nowadays being overweight is seen as neither cheerful nor beautiful but an increased risk of heart disease and stroke.

What do you do? Diet? Not according to England’s chief medical officer, Sir Liam Donaldson. He says that physical activity is the key for reducing the risks of obesity, cancer and heart disease. And the Health Secretary John Reid even said that being inactive is as serious a risk factor in heart disease as smoking.

How much exercise should you do? According to Sir Liam Donaldson, at least 30 minutes of moderate (适度的) activity five days a week. Is going to the gym the answer? Luckily for those who find treadmills (跑步机) boring, the Health Development Agency believes that physical activity that fits into people’s lives may be more effective. They suggest taking the stairs rather than the lift, playing active games with your children, dancing or gardening. There’s new scientific evidence that too much exercise may be bad for you.

So, should we forget about gyms and follow some experts’ advice to increase exercise in our daily life? After all, getting off the bus a stop early and walking the rest of the way can’t do any harm! One final thought. How come past generations lacked gym facilities but were fitter than people today?

51. This passage is mainly about ______________

A to keep fit and avoid fatness B. increased risks for overweight people

C. the dangers of exercise in the gym D. the benefit of a balanced diet

52. What dose “this growing problem” (Para. 1) refer to?

A. The slow growing up of overweight children

B. The obesity time bomb warned of by doctors.

C. To little exercise and too much diet.

D. Neglect of the health issue by the government

53. According to Sir Liam Donaldson, what is the best way to avoid obesity?

A. Being on diet B. Giving up smoking.

C. Being as inactive as possible. D. Doing physical activities.

54. Which of the following is NOT suggested by the Health Development Agency?