www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

您現在的位置: Language Tips> Audio & Video> Special Speed News  
   
 





 
Bringing light to homes in poor countries
[ 2009-12-22 11:35 ]

 

去聽寫專區一展身手

英語學習論壇的“聽力練習區”正式與大家見面啦。歡迎大家來這里練習聽力,交流經驗,共同進步。

本練習區的音頻文件選自英語點津的“聽中國日報”、“VOA常速”、“流行金曲”及“名人演講”等欄目,題材豐富,難度各異,適合不同階段的英語學習者。

英語點津會定期發布音頻材料,大家可以在跟帖中貼出自己聽寫出的音頻文字稿。每個音頻材料的標準文字稿會在帖子發布兩天后公布。

進入該文章的聽寫練習頁面

This is the VOA Special English Development Report.

More than one and a half billion people around the world live without electricity. Finding better ways to bring light to the poor is the goal of researchers like David Irvine-Halliday.

In the late 1990s, the Canadian professor was working in Nepal when his return flight was canceled. A delay gave him time to take a 14-day hiking trip in the Himalayas.

As he tells it, one day he looked in the window of a school and noticed how dark it was. This is a common problem for millions of children around the world -- and not just at school, but also at home.

Many families use kerosene oil lamps. There are many problems with these lamps. They produce only a small amount of light. They are dangerous to breathe. And they are a big fire danger, causing many injuries and deaths each year.

Kerosene costs less than other forms of lighting, but it is still costly in poor countries. Professor Irvine-Halliday says many people spend well over 100 dollars a year on the fuel.

When he returned to Canada, he began researching ways to provide safe, clean and affordable lighting. He began experimenting with light-emitting diodes, LEDs, at his laboratory at the University of Calgary in Alberta. As a professor of renewable energy, he already knew about the technology.

Light-emitting diodes are small glass lamps that use much less electricity than traditional bulbs and last much longer.

Professor Irvine-Halliday used a one-watt bright white L.E.D. made in Japan. He found it on the Internet and connected it to a bicycle-powered generator. He remembers thinking it was so bright, a child could read by the light of a single diode.

In 2000, after much research and many experiments, he returned to Nepal to put the systems into homes. His Light Up the World Foundation has now equipped the homes of 25,000 people in 51 countries.

DAVID IRVINE-HALLIDAY: "The one-time cost of our system -- which consists of a small solar panel, a little motorcycle-sized battery and a couple of LED lamps, which basically live forever, as well as the solar panel -- is less than 100 dollars. So, one year of kerosene would pay for a solid-state lighting system."

Now his aim is to develop a lower-cost lighting system. In January, David Irvine-Halliday is leaving the University of Calgary. He has also decided to give up leadership in the Light Up the World Foundation to start a company in India.

And that's the VOA Special English Development Report, written by June Simms with Rosanne Skirble. I'm Christopher Cruise.

kerosene: a thin oil distilled from petroleum or shale oil, used as a fuel for heating and cooking, in lamps, and as a denaturant for alcohol 煤油

diode: an electronic device that restricts current flow chiefly to one direction 兩極真空管

(來源:VOA 編輯:陳丹妮)

 

中國日報網英語點津版權說明:凡注明來源為“中國日報網英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883631聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。
相關文章 Related Story
 
 
 
本頻道最新推薦
 
英國女王2009圣誕致辭
英語點津2009年度十大新聞熱詞
耐用品 durable goods
皮膚老化?生活習慣惹的禍
Merry Christmas in Beijing
翻吧推薦
 
論壇熱貼
 
萬圣節問題火熱征集!
翻譯達人評選,快來投票!
經典英語口語,不得不看(推薦)
I chocolate you!怎么翻譯?
請教obama演講里的一句話
 

 

主站蜘蛛池模板: 手机看片在线 | 国产精品免费一区二区三区四区 | 成人欧美在线视频 | 日本一区二区三区在线 视频观看免费 | 二区国产 | 欧美精品午夜毛片免费看 | 一级做a爰片性色毛片男 | 美国一级欧美三级 | 成人综合影院 | 久草视频大全 | 欧美成人精品高清在线观看 | 男人干女人逼 | 亚洲gogo人体大胆西西安徽 | 亚洲午夜综合网 | 国产三级a三级三级 | 国产精品国内免费一区二区三区 | 精品视频在线看 | 成人男女啪啪免费观看网站 | 久草新免费 | 全免费a级毛片免费看不卡 全免费毛片在线播放 | 国产91区 | 91精品一区国产高清在线 | 亚洲国产精品67194成人 | 日韩综合久久 | 真人毛片| 日本在线资源 | 精品一区二区高清在线观看 | a级毛片免费观看视频 | 久久国产免费观看 | 亚洲视频一区在线观看 | chinese宾馆自拍hd | 久久精品一区二区三区四区 | 91探花福利精品国产自产在线 | 国产精品人成人免费国产 | 欧美一级二级毛片视频 | 久久久国产一区二区三区丝袜 | 欧美国产合集在线视频 | 欧美一区二区三区播放 | 国产日韩精品一区在线不卡 | 万全影院亚洲影院理论片 | 日本a级特黄三级三级三级 日本a一级片 |