Physical fitness is todays hot topic. And wherever you turn, you hear something new. But is it all true?　　No pains, no gains. Many people tend to overdo their exercise programs looking for quick results. Doing so, however, may result in your injury or sore 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.　　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 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. Its not, however, because your muscles turned to fat. Muscles may atrophy , but they wont turn to fat. Muscle is muscle and fat is fat.　　A.Doing intense exercise for 60 minutes or more increases appetite.　　C.Doing gentle exercise for less than 60 minutes will probably reduce appetite.　　正确答案:D　　4.The writer believes that　　B.there is no shortcuts to getting fit.　　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?！　.your muscles may become smaller.　　C.you will put on muscles.　　正确答案:A　　1.If you work out less than 40 minutes, you are actually losing　　B.water.　　D.plastics.　　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?！　.they overdo exercise at the very beginning and slow down gradually.　　C.they start slowly and gradually increase the workout.　　正确答案:C

　　Physical fitness is todays hot topic. And wherever you turn, you hear something new. But is it all true?　　No pains, no gains. Many people tend to overdo their exercise programs looking for quick results. Doing so, however, may result in your injury or sore 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.　　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 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. Its not, however, because your muscles turned to fat. Muscles may atrophy , but they wont turn to fat. Muscle is muscle and fat is fat.　　A.Doing intense exercise for 60 minutes or more increases appetite.　　C.Doing gentle exercise for less than 60 minutes will probably reduce appetite.　　正确答案:D　　4.The writer believes that　　B.there is no shortcuts to getting fit.　　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?！　.your muscles may become smaller.　　C.you will put on muscles.　　正确答案:A　　1.If you work out less than 40 minutes, you are actually losing　　B.water.　　D.plastics.　　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?！　.they overdo exercise at the very beginning and slow down gradually.　　C.they start slowly and gradually increase the workout.　　正确答案:C