美国科学60秒 SSS 2015-04-02
时间：2019-01-20 作者：英语课 分类：2015年Scientific American(四)月
英语课
I’m running over the Williamsburg Bridge in NYC. It connects Brooklyn to downtown Manhattan. It’s one of my favorite places to run, cause the views are great. Until you look all the taxis and trucks spewing(喷出) exhaust always makes me wonder, is that all pollution essentially 1 undoing 2 any health boost I’m getting from the run.
A new study of more than 50,000 Danish adults suggest that I might be ok. Of course being Denmark, more than 2/3 of them regularly rode a bike and half played sports. As you might expect, both activities lowered the Danes’(丹麦人) risks of death during a 17 years study period. But that effects held true even for Danes exercises in the most polluted parts of Copenhagen, suggesting that the short-term heavy intake 3 of pollutants 4 during exercise is just small proportion of their overall exposure to pollution and thus, does not diminish the benefits of exercises. The results are in the journal Environmental Health Perspectives.
Of course Copenhagen has pretty clear air, even by European standards. So these results might not translate to, say, Beijing. And researcher still advise exercises in green spaces, parks and other road free areas if possible. But hey! I’d had to head all the way to midtown Manhattan for that. “Central Park, central park, who cares about central park..”
Christopher Intagliata.
adv.本质上，实质上，基本上
- Really great men are essentially modest.真正的伟人大都很谦虚。
- She is an essentially selfish person.她本质上是个自私自利的人。
n.毁灭的原因，祸根；破坏，毁灭
- That one mistake was his undoing. 他一失足即成千古恨。
- This hard attitude may have led to his undoing. 可能就是这种强硬的态度导致了他的垮台。
n.吸入，纳入；进气口，入口
- Reduce your salt intake.减少盐的摄入量。
- There was a horrified intake of breath from every child.所有的孩子都害怕地倒抽了一口凉气。
污染物质（尤指工业废物）( pollutant的名词复数 )
- Pollutants are constantly being released into the atmosphere. 污染物质正在不断地被排放到大气中去。
- The 1987 Amendments limit 301(g) discharges to a few well-studied nonconventional pollutants. 1987年的修正案把第301条（g）的普通排放限制施加在一些认真研究过的几种非常规污染物上。 来自英汉非文学 - 环境法 - 环境法