Question

【題目】It’s cold and dark outside, and your bed is so warm and comfortable. Going for a run seems like such a bad idea. But before you hide your running shoes, it might be worth giving that crazy idea a go.

According to The Huffington Post, an outdoor run in winter, as opposed to one on a treadmill(跑步機), burns more calories because the body is working hard to adjust its core temperature. Furthermore, research shows that race times are faster in cold weather than in warmer temperatures and quicker runs burn more calories. Similarly, cold weather also makes the heart work harder to distribute blood through the body, making that vital muscle even stronger.

Outdoor exercise also turns up your energy and rids you of the stress and depression that build up every day. The heat and humidity in the summer can drag you down and tire you faster, but cold weather is refreshing. It adjusts you to your surroundings, making you feel alive.

Of course, the threat of smog in some built-up areas is a further hurdle to winter exercise. Heart attacks, stroke, lung cancer and asthma are all dangers of running in smog. The combination of air pollution and exercise increases the potential problems. If you do choose to run outside on smoggy days, take a path in a park or residential area to avoid car exhaust(尾氣), and go early in the morning before rush hour. But staying inside on smoggy days and waiting for the next clear day to run is best.

【1】How does cold weather benefit runners, compared with warm weather?

A. They can run more slowly.

B. They can take in more calories.

C. Their hearts can function harder.

D. Their body temperature can get lower.

【2】How does summer affect runners?

A. It builds up their energy quickly.

B. It makes runners tired easily.

C. It lessens runners’ stress.

D. It causes heart attack.

【3】What are the runners supposed to do on smoggy days?

A. Stop driving cars.

B. Do more exercise.

C. Avoid outdoor exercise.

D. Run late in the morning.

Answer 1

【答案】

【1】C

【2】B

【3】C

【解析】本文介紹了冬天戶外跑步給人帶來的好處，并且建議霧天最好呆在室內(nèi)，等天晴再去跑步。

【1】C。細節(jié)理解題。由第二段最后一句cold weather also makes the heart work harder to distribute blood through the body, making that vital muscle even stronger得知冬天戶外運動會讓你的心臟更努力地將血液送往全身，從而使得肌肉更加強壯。故，選C。

【2】B。細節(jié)理解題。從第三段第二句The heat and humidity in the summer can drag you down and tire you faster, but cold weather is refreshing.得知，夏天的炎熱和潮濕會降低速度讓你更快勞累，但是寒冷的天氣卻讓人耳目一新。

【3】C。細節(jié)理解題。請在此填寫小題的解析!