A
This activity will melt away the pounds，build up your body and leave you on an emotional high.Yet the form of exercise destined to become the fitness trend of the year does not require gym membership or a personal trainer.All you need to do is walk.
“Walking is a refreshing alternative to complicated aerobic (有氧的) routines and overpriced gym membership，”says personal trainer Lucy Knight，the author of a new book on the exercise.“It is free，enjoyable and already a part of everyday life.All you need to do is correct your technique，and walk faster and longer，and you will lose weight.” Scientists at the University of Pittsburgh recently revealed that overweight people who walked briskly (轻快地) for 30 to 60 minutes a day would lose weight even if they didn't change any other living habits.Another American study found that people who walked for at least four hours a week gained less weight than couch potatoes as they got older.Researchers at the University of Massachusetts Medical School found that people who walked every day had fewer colds than those who sat a lot.Best of all，walking makes you feel good about yourself.“For people suffering from depression，walking three to four times a week for 30 minutes has been shown to lift their mood，” says Knight.
How will you lose weight and keep healthy？Health experts recommend that we should walk 10,000 steps a day to stay healthy.Actually you would probably need to walk at least 16,000 steps a day to lose weight.“Your workout plans depend on your level of fitness.You should aim to progress by increasing your walk by five minutes every two weeks，and walk a bit faster.In just three months，the results would speak for themselves，” says Knight.
语篇解读：本文是一篇说明文。竞走能减轻你的体重，锻炼你的身体，让你情绪高涨，而且不需要健身房会员或私人教练！
1．What is the latest fitness trend according to the passage?
A．Brisk walking.
B．Losing weight.
C．Working out in a gym.
D．Exercising with a personal trainer.
解析：选A 细节理解题。根据第一段内容可知，最新的锻炼趋势是竞走。
2．What does the underlined word “overpriced” in Paragraph 2 mean?
A．Expensive. B．Worthy.
C．Prepaid. D．Discountable.
解析：选A 词义猜测题。对于复杂的有氧运动和昂贵的健身房会员来说，竞走是一个令人耳目一新的选择。根据语境和常识可知，健身房会员是昂贵的。此处分析画线词的构成也可以猜测出词义。over作为前缀表示“超过，过于”，price意为“价格”，故overpriced“价格过高的”与A项含义最为接近。
3．What can we learn from the studies and researches mentioned in the passage?
A．Walking is gaining increasing popularity.
B．Walking benefits people in different aspects.
C．Walking is an enjoyable way to lose weight.
D．Walking involves different groups of people.
解析：选B 推理判断题。第二段中提到的科学研究分别介绍了竞走可以减肥，少患感冒，提升个人情绪等。由此可推知，文章提这些调查研究的作用在于介绍竞走对人们的诸多好处。
4．Which of the following statements can be inferred from the last paragraph?
A．10,000 steps a day is needed for weight loss.
B．The effect of walking is noticeable over time.
C．Your fitness level depends on your health experts.
D．Changing the walking time every day is necessary.
解析：选B 推理判断题。根据最后一段内容可知，健康专家建议我们每天步行10,000步来保持健康。事实上，你可能需要每天走至少16,000步才能减肥。你还应该通过每两周增加5分钟步行时间的方法来达到进步的目标，并且走得更快一点。三个月后，最终的结果就会证明步行会有很好的效果的。由此可见，随着时间的推移，竞走的好处自会显现出来。
