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  3. Doctors in Britain are warning of an obesity time bomb, when children who ar

Doctors in Britain are warning of an obesity time bomb, when children who ar

游客2023-07-19  67
问题     Doctors in Britain are warning of an obesity 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 expanding problem.
    The cheerful Mr. Pickwick, the hero of the novel by Charles Dickens, is seen in illustrations as someone who is plump (胖乎乎的) — and happy. In 18th century paintings beauty is equated with rounded bodies and soft curves. But nowadays being overweight is seen as indicating neither a cheerful character nor beauty but an increased risk of heart disease, stroke and diabetes.
    So 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.
    So, having bought some cross trainers, how much exercise should you do? According to Sir Liam Donaldson, at least 30 minutes of moderate activity five days a week. Is going to the gym the answer? Luckily for those who find treadmills (跑步机) tedious, 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, walking up escalators, playing active games with your children, dancing or gardening. And according to a sports psychologist, Professor Biddle, gyms ’are not making the nation fit’, and may even cause harm.
    There’s new scientific evidence that too much exercise may actually be bad for you. Scientists at the University of Ulster have found that unaccustomed aerobic (有氧的) exercise releases dangerous free radicals that can adversely affect normal function in unfit people. The only people who should push their bodies to that level of exercise on a regular basis are trained athletes.
So, should we forget about gyms and follow some expert’s advice to reduce sedentary (久坐 的) activities and 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 leaner and fitter than people today? [br] Why does the author mention Mr. Pickwick in Charles Dickens’ novel?
选项 A、He was portrayed in an 18th-century painting.
B、He is the hero of a world famous novel.
C、He suffered from heart disease and stroke.
D、He is the image of being plump and happy.
答案 D
解析 第二段首句提到，快乐的匹克威克先生是狄更斯小说中的主人公，在插图中描绘的他被人们看作是一个胖乎乎的但却很高兴的人。作者提到他是因为他很胖但却很快乐，与下文提到现在人们对肥胖的观点不同，形成对比，故答案为[D]。[B]项描述正确，但不是作者提到匹克威克的目的，故排除。匹克威克出现在狄更斯小说的插图里，而不是18世纪的一件绘画作品里，故排除[A]。[C]在文中未提及，故排除。
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