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  3. Fifty years ago, most people’s daily levels of activity were equivalent to w

Fifty years ago, most people’s daily levels of activity were equivalent to w

游客2023-11-04  85
问题     Fifty years ago, most people’s daily levels of activity were equivalent to walking three to five miles a day. Today, the【C1】______ person fails to【C2】______that distance in a week. It’s【C3】______ the ratio of fatness has soared— with serious implications for health.
    What we have【C4】______in convenience from labour-saving devices over the past half-century, we have paid for【C5】______a sharp decline in physical activity. We use cars, buses or trains to【C6】______ work: our children are【C7】______to school: elevators and lifts have replaced【C8】______stairs in shopping centres, offices and apartment blocks. Washing machines, vacuum cleaners, dishwashers and electric mowers all reduce the effort required to【C9】______a clean and tidy home. Almost one third of adults【C10】______over ten hours sitting down every day, adding【C11】______a staggering average of 32 years and four months over a lifetime.【C12】______ surprising, then, that researchers【C13】______this lifestyle for our weight gain.
    Of course, our diets have changed, too,【C14】______the fact is that we consume fewer calories now than in the 1960s. So what is the【C15】______? The secret is integrated exercise. This【C16】______going about your normal daily life—but doing it with enthusiasm. It might mean standing to【C17】______the phone and tapping your feet on the floor as you work. It means never taking the car when you could walk: it means standing on short train and bus【C18】______, or walking at a pace【C19】______ you feel you might break into a run if you were to go any【C20】______. [br] 【C18】
选项 A、expeditions
B、voyages
C、tours
D、journeys
答案 D
解析 名词辨析题。句意为：可以步行时，绝对不要“以车代步”；乘短途火车和公交车时最好站着……。[D]journeys应用范围很广，指“有预定地点的陆上、水上或空中的单程长、短途旅行”，一般来说，它侧重指长距离的陆上旅行，故选[D]。[A]expeditions表示“有特定目的的远征或探险”；[B]voyages主要指“乘船在水上旅行”，也可指“空中旅行”；[C]tours指“以游览、视察、购物等为目的的旅行”，常含有“最后回到原出发点”的意思，以上三项均可排除。
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