A study of the physical activity habits of 4 563 adults found that those who said they did the most housework were also the larg

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问题     A study of the physical activity habits of 4 563 adults found that those who said they did the most housework were also the largest. The findings challenge Public Health England and the World Health Organization’s endorsement of household chores (家庭杂务) as a【C1】________contribution towards a recommended target of 150 minutes of physical activity a week.
    The study, carried out by Professor Marie Murphy and her colleagues at the University of Ulster, found that women and older people were particularly likely to list domestic physical activity as a significant【C2】________of their moderate to vigorous physical activity. But the study found that those who said they did the most were also the largest. Murphy said, "We found housework was inversely (相反地)【C3】________to leanness, which suggests that either people are overestimating the amount of moderate-intensity physical activity they do through housework or are eating too much to【C4】________for the amount of activity undertaken. "
    Kevin Fenton, director of health and well-being at Public Health England, suggested the study could【C5】________evidence that some people thought they were healthier than they actually were. "At an individual level there may be a【C6】________to overestimate the level of ’good behavior’ we’re doing and this is reflected when people use food diaries, pedometers (计步器) or Apps to measure more【C7】________what they have achieved. This study may reflect this," he said. But he【C8】________everyday tasks as genuinely useful. He added; "From an individual【C9】________, physical activities such as housework, doing the shopping and walking to collect children from school or to post a letter, can have positive【C10】________on physical and mental well-being. "
    A) ambition    F) intelligible     K) reinforce
    B) barren      G) objectively    L) related
    C) compensate  H) perspective   M) scandals
    D) defended    I) probably      N)  tendency
    E) impacts     J) proportion     O)  worthwhile
【C1】

选项

答案O

解析 形容词辨析题。分析句子结构可知,空格前面有不定冠词a,后面有名词contribution。空格处应填入形容词。根据首句可知,一项研究发现,做家务最多的人也最胖。空格所在句的句意为,这项发现挑战了英国公共卫生部门和世界卫生组织对家务的认可________它为实现推荐的每周150分钟身体活动的目标做出了________贡献。由句意推断,空格处应填入褒义词,结合备选项可知,O)worthwhile“重要的,有益的”符合句意。故为本题答案。
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