The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise. Millions of individuals beca

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问题     The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise. Millions of individuals became【C1】______in a variety of aerobic activities, and【C2】______thousands of health spas【C3】______around the country to capitalize on his【C4】______interest in fitness, particularly aerobic dancing for females. A number of fitness spas existed【C5】______to this aerobic fitness movement, even a national chain with spas in most major cities. However, their【C6】______was not on aerobics,【C7】______on weight-training programs designed to develop muscular mass,【C8】______, and endu rance in their primarily male【C9】______. These fitness spas did not seem to benefit【C10】______from the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs【C11】______few, if【C12】______, health benefits. In recent years, however, weight training has again become increasingly【C13】______for males and for females. Many【C14】______programs focus not only on developing muscular strength and endurance but on aerobic fitness as well.【C15】______, most physical-fitness tests have usually included measures of muscular strength and endurance, not for health-related reasons, but primarily【C16】______such fitness components have been related to【C17】______in athletics.【C18】______, in recent years, evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health【C19】______as well. The American College of Sports Medicine now【C20】______that weight training be part of a total fitness program for healthy Americans.
【C17】

选项 A、performance
B、harassment
C、identification
D、portrayal

答案A

解析 “表演;展现”。本题考查词语辨析。根据原文意思:“……,而是因为这种健康运动的对手与体育运动的表现有关。”所以选择“performance”。而B选项“困扰;烦恼;忧虑”,C项“识别;鉴别;证明”,D项“描绘;记述”均不符合原文意思。
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