课时提能练(六) 必修2 Unit 4 Cyberspace(B)
(对应学生用书第247页)
Ⅰ.阅读理解
(2017·河北石家庄高三复习教学质量检测(二))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 ago.
According to The Huffington Post, an outdoor run in winter, as opposed to one on a treadmill (跑步机), burns more calories because the body is working hard to regulate (调节) 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.
