The fitness movement that began in the late 1 960s and early 1 970s centered around aerobic exercise(有氧操).Millions of individual

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问题  The fitness movement that began in the late 1 960s and early 1 970s centered around aerobic exercise(有氧操).Millions of individuals became engaged in a variety of aerobic activities,and literally thousands of health spas developed around the country to capitalize(获利)on this emerging interest in fitness,particularly aerobic dancing for females.A number of fitness spas existed prior to this aerobic fitness movement,even a national chain with spas in most major cities.
However,their focus was not on aerobics,but rather on weight-training programs designed to develop muscular mass,strength,and endurance in their primarily male enthusiasts.These fitness spas did not seem to benefit financially form the aerobic fitness movement to better health,since medical opinion suggested that weight-training programs offered few,if any,health benefits.In recent years,however,weight training has again become increasingly popular for males and for females.Many current programs focus not only on developing muscular strength and endurance but on aerobic fitness as well.
  Historically,most physical-fitness tests have usually included measures of muscular strength and endurance,not for health—related reasons,but primarily because such fitness components have been related to performance in athletics.However,in recent years,evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health benefits as well.The American College of Sports Medicine now recommends that weight training be part of a total fitness program for healthy Americans.Increased participation in such training is one of the specific physical activity and fitness objectives of Health People 2000 National Health Promotion and Disease Prevention Objectives.
Recent studies have suggested that weight training(          ).

选项 A、has become an essential part of people’s life
B、may well affect the health of the trainees
C、will attract more people in the days to come
D、contributes to health improvement as well

答案D

解析 从前面的分析可知,这篇文章主要讲的是锻炼在减肥中的重要性。A和C提到的人物和机构都只是作者用来支撑这一观点的论据,可以首先排除。B的说法也是明显错误的,文章讲的是如何保持合适的体重,而不是在强调其重要性。作者强调了身体锻炼在减肥中的重要性。向人们说明最好在节食的同时参加体育锻炼,这可以说是介绍了一种最好的减肥方法。
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