课程咨询
托福培训

扫码免费领资料

内含托福全科备考资料

更有免费水平测试及备考规划

托福培训

扫码关注掌握一手留学资讯

回复XDF免费水平测试

科学美国人60秒:广告牌治理污染-托福听力下载

2017-01-18 14:01:00来源:科学美国人60秒

点击查看>>科学美国人60秒音频:广告牌治理污染

  科学美国人60秒中英文翻译:广告牌治理污染

  科学美国人60秒英文文本

  Can poetry fight air pollution?

  Turns out it can—with the help of nanotechnology.

  Tony Ryan is a polymer chemist at the University of Sheffield.

  He works with tiny particles of titanium dioxide, which can use sunlight to suck up smog-forming pollution and purify the air.

  To demonstrate the effect, Ryan attached a poster 20 meters tall and 10 meters wide to the side of a building in Sheffield on May 14th.

  空气.jpg

  The poster is coated with titanium dioxide and can consume the nitrogen oxide exhaust of about 20 cars per day.

  He argues that every billboard could be similarly treated to suck up pollution at an extra cost of just a few hundred dollars.

  The Sheffield poster comments on its own function.

  Written on it is a new work by poet Simon Armitage entitled "In Praise of Air."

  "on days when thoughts are fuddled with smog/or civilization crosses the street/with a white handkerchief over its mouth.

  and cars blow kisses to our lips from theirs/I turn the key, throw back the lid, breathe deep./My first word, everyone's first word, was air."

  中文翻译请点击下一页

托福辅导

关注新东方在线托福

托福机经·Official题目练习

考前重点突破·听说读写海量资料

更多资料
更多>>
更多内容

免费获取托福备考大礼包

微信扫描下方二维码 立即领取

托福辅导
更多>>
更多公益讲座>>
更多>>
更多资料