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

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问题     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【B1】______this expanding problem.
    The cheerful Mr. Pickwick, the hero of the novel by Charles Dickens, is seen in【B2】______ as someone who is plump—and happy. In 18th century paintings beauty【B3】______rounded bodies and soft curves. But nowadays being overweight is seen as【B4】______neither a cheerful character nor beauty but an【B5】______risk of heart disease, stroke and diabetes(糖尿病).
    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【B6】______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【B7】______activity five days a week. Is going to the gym the answer?【B8】______for those who find treadmills tedious, the Health Development Agency believes that physical activity that.【B9】______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【B10】______Professor Biddle, gyms "are not making the nation fit", and may even cause harm.
【B1】

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答案take responsibility for

解析 空格前为has to结构,其后需要填入原形动词。take responsibility for意为“承担……的责任”。
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