Despite growing numbers of joggers, Canada Fitness Surveys across the country demonstrate that Canadians are less physically fit

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问题     Despite growing numbers of joggers, Canada Fitness Surveys across the country demonstrate that Canadians are less physically fit than their U. S. or Swedish counterparts. Many people were【C1】______that they do not exercise often or vigorously enough for optimal benefits. Only about 25 per cent of Canadian adults paddle【C2】______the recommended level that increases the heart beat to a target level【C3】______there for at least 15 minutes thrice weekly. Men are more likely to be either "sedentary" or "very active" , while women are【C4】______to be "moderately active".
    Common reasons【C5】______are no willpower, poor facilities, boredom, fatigue, no partner, sheer laziness or lack of lime. Experts【C6】______that better use of available time is the answer, with incentives and rewards to help sustain the exercise habit until the benefits become so【C7】______that activity is automatically scheduled into daily routines.
    A modest increase in daily activity【C8】______the sedentary could improve the overall health of our population more than increased activity in those already dedicated to exercise. Activity in older people helps them【C9】______agile, work and feel better. Many elderly people who remain active have a lower-heart rate than inactive youngsters.【C10】______, one famous marathoner(Clarence Demar), e-ven after age 60, was in better shape than【C11】______Currently only 35 per cent of the over【C12】______take regular walks. Even a small gain in fitness among the elderly may permit them to replace a restricted lifestyle with【C13】______in which they can play golf, dance, cycle and【C14】______The overall【C15】______is clear; physical activity benefits body and mind, and should be encouraged for all, especially those who are now the least active.
【C9】

选项 A、stay
B、grow
C、come
D、live

答案A

解析 stay+形容词表示“保持某种状态”。stay agile保持灵敏。
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