Physical Fitness

　　Physical fitness is today’s hot topic. And wherever you turn, you hear something new. But is it all true?

　　The more you sweat, the more fat you burn. This myth has encouraged people to work out in extreme heat or wear layers of clothes or rubber or plastic weight-loss suits in the hope of sweating fat off. Unfortunately, it’s water they’re losing, not fat. When you first begin to exercise, you burn carbohydrates or sugars. To burn the fat, plan on working out at least 40 minutes.

　　No pains, no gains. Many people tend to overdo (过度)their exercise programs looking for quick results. Doing so, however, may result in your injury or sore (疼痛的)muscles. Your best bet is to start any exercise program slowly and gradually increase the workout. This gives people a good beginning without the pain or injury.

　　Exercise increases appetite. This is true for hard or intense (剧烈的) exercise that lasts for 60 minutes or longer. Gentle exercise that is less than 60 minutes, however, will probably reduce your appetite for one to two hours. Exercise always lowers blood sugar.

　　You can get fit in 10 minutes a week. This and similar claims are common, but untrue. There are no shortcuts to getting fit. Becoming fit takes work and the general rule is 20 minutes of aerobic activity(有氧运动) three times a week. Consistency is the key. If you stop working out, your muscles will turn to fat. If you decrease your activity and continue to eat the same or more, you may gain back the fat that you worked so hard to lose. It’s not, however, because your muscles turned to fat. Muscles may atrophy (萎缩), but they won’t turn to fat. Muscle is muscle and fat is fat.

　　1.If you work out less than 40 minutes, you are actually losing

　　A.fat.

　　B.water.

　　C.muscles.

　　D.plastics.

　　正确答案:B

　　解析:问题问的是：如果你健身少于40分钟，你其实在消耗什么?由第二段可知，少于40分钟的运动消耗的其实是水分，而不是脂肪。

　　2.Paragraph 3 suggests people that

　　A.they overdo exercise at the very beginning and slow down gradually.

　　B.they not do exercise to avoid injury.

　　C.they start slowly and gradually increase the workout.

　　D.ignore the injury and sore muscle and persevere in doing the exercise.

　　正确答案:C

　　解析:问题问的是：第三段建议人们如何运动?推理判断题。第三段提到运动最好是开始慢些，渐渐增加运动量。

　　3.Which statement is NOT true according to Paragraph 4

　　A.Doing intense exercise for 60 minutes or more increases appetite.

　　B.Doing gentle exercise for much more than 60 minute might increase appetite.

　　C.Doing gentle exercise for less than 60 minutes will probably reduce appetite.

　　D.Doing gentle exercise for less than 60 minutes will not lower blood sugar.

　　正确答案:D

　　解析:问题问的是：根据第四段哪个说法不正确?第四段结尾提到任何运动都会降低血糖。D运动60分钟以下不会降低血糖错误。

　　4.The writer believes that

　　A.one can get fit in ten minutes a week.

　　B.there is no shortcuts to getting fit.

　　C.if one is consistent, he/she will find the shortcut to getting fit.

　　D.one must have a job if he/she wants to get fit.

　　正确答案:B

　　解析:问题问的是：作者相信什么?倒数第二段结尾提到B的说法“减肥没有捷径”。

　　5.If you decrease your activity and continue to eat the same or more

　　A.your muscles may become smaller.

　　B.your muscles become fat.

　　C.you will put on muscles.

　　D.nothing changes at all.

　　正确答案:A

　　解析:问题问的是：减少运动，但继续保持或增加食量会怎样?最后一段可知A肌肉会变小正确。B肌肉会变成脂肪;C肌肉会增加;D没有变化。这几项都不正确。

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（实习编辑：高奕飞）