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.
【C4】

选项 A、emerging
B、hovering
C、intriguing
D、mingling

答案A

解析 “出现的”。根据文章一致性原则,“emerging”与第一句中提到的“the fitness movement that began in…”中的“began”形成呼应。而B项“翱翔的;盘旋的;徘徊的;犹豫的”,C项“阴谋的,密谋的,谋划的”,D项“混合的;相混的;相交往的,相往来的”均不符合题意。
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