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【英语时差8,16】喝饮料与运动的共性

时间:2015-11-07 05:58来源:互联网 提供网友:yajing   字体: [ ]
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 After a day of skiing, bicycling, or swimming, some people find they get headaches — something like a hangover from drinking too much the night before. Even though exercise is healthy and excessive drinking is not, the headache in either case is your body’s response to the same problem — dehydration1. First, another small mystery. If you commute2 by bicycle, you may find that you don’t seem to sweat very much until after you arrive. Since sweat is your body’s cooling system, you may not sweat very much until your body has begun to heat up. When you get to work, your body is still trying to cool down and so you keep on sweating. But even then, you aren’t really sweating any more than you were toward the end of the ride. It only feels that way because the wind that evaporated the sweat when you were riding is now gone. Swimmers sweat too, but, because they’re in the water, it doesn’t feel like it. And since high altitude increases the rate of evaporation3, downhill skiers also may sweat far more than they realize.


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1 dehydration UYkzX     
n.脱水,干燥
参考例句:
  • He died from severe dehydration.他死于严重脱水。
  • The eyes are often retracted from dehydration.眼睛常因脱水而凹陷。
2 commute BXTyi     
vi.乘车上下班;vt.减(刑);折合;n.上下班交通
参考例句:
  • I spend much less time on my commute to work now.我现在工作的往返时间要节省好多。
  • Most office workers commute from the suburbs.很多公司的职员都是从郊外来上班的。
3 evaporation Pnoxc     
n.蒸发,消失
参考例句:
  • Be careful not to lose too much liquid by evaporation.小心不要因蒸发失去太多水分。
  • Our bodies can sweat,thereby losing heat by evaporation.我们的身体能出汗,由此可以蒸发散热。
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