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【英语时差8,16】舞台灯光的起源(上)

时间:2015-11-25 06:44来源:互联网 提供网友:yajing   字体: [ ]
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If someone loves being in the limelight, that means they enjoy being the center of attention. We use the word now to mean social prominence1, but have you ever wondered what limelight actually is, or how it came to be synonymous with fame? Originally a limelight was a bright, incandescent2 lamp invented by the Englishman Thomas Drummond in 1816. At that time, the British government was trying to survey Ireland. To do this, surveyors used tall Irish mountains as reference points. Their problem was that the weather was often bad, making it impossible to see the mountain tops directly. However, when Drummond lit his newly invented limelights on the tops of these mountains, surveyors could see them from over fifty miles away. The “lime” in limelight refers to burned limestone3, not the fruit. Burned limestone gives off great quantities of brilliant, white light when heated. To make a limelight, a small piece of lime is heated by burning a mixture of oxygen and hydrogen gasses. The white light from the glowing lime is then focused with a lens or a mirror.


点击收听单词发音收听单词发音  

1 prominence a0Mzw     
n.突出;显著;杰出;重要
参考例句:
  • He came to prominence during the World Cup in Italy.他在意大利的世界杯赛中声名鹊起。
  • This young fashion designer is rising to prominence.这位年轻的时装设计师的声望越来越高。
2 incandescent T9jxI     
adj.遇热发光的, 白炽的,感情强烈的
参考例句:
  • The incandescent lamp we use in daily life was invented by Edison.我们日常生活中用的白炽灯,是爱迪生发明的。
  • The incandescent quality of his words illuminated the courage of his countrymen.他炽热的语言点燃了他本国同胞的勇气。
3 limestone w3XyJ     
n.石灰石
参考例句:
  • Limestone is often used in building construction.石灰岩常用于建筑。
  • Cement is made from limestone.水泥是由石灰石制成的。
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