单词：spherical cycloid
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Text Can you prove that the earth is round? Go ahead and try! Will you rely on your senses or will you have to draw on the opinions of experts? WHY DO WE BELIEVE THAT THE EARTH IS ROUND? George Orwell Somewhere or other — I think it is in the prefa
大学英语精读第四册
This is the VOA Special English Agriculture Report. Recycling programs usually give new life to materials like paper, metal, plastic and glass. But a program in the eastern United States is recycling shellfish to help the Chesapeake Bay. Oysters are
2010年VOA慢速英语(十一)月
Do you know so many of you will climb into your cars today perhaps to shuffle your children to soccer, to football, make their (refer to the cars) run to the grocery store. But do you also know what's
万花筒2006年
Some people prefer clay tennis courts, others like grass. Yael and Don discuss the difference on this Moment of Science. Y: Hey Don, what do you say to a game of tennis later? D: Sure thing, Yael. But it has to be a clay court, okay? Y: But the grass
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北京奥运28大项 参与，竞争，分享，进步 Handball 手球 PLAYING TIME 比赛时间 英文原文 The normal playing time for all teams with players of age 16 and above is 2 halves of 30 minutes. The half-time break is normally 10 minutes. The ball is made of leat
奥运28大项比赛
Declassify US government documents and witness testimony from former or retired US military personnel confirm beyong any doubt the reality of ongoing UFO incursions at nuclear weapon sites. When I say UFO, the witnesses have described this craft as d
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid
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If youve ever had a garden or grown flowers in a window box, youve probably heard that you shouldnt water your plants at high noon because their leaves might scorch. Now a study in a journal called New Phytologist confirms that water droplets can foc
Scientific American(一)月
By Mil Arcega Washington, DC 23 May 2006 watch Ewaste report Recycled computer keyboards The business of disposing electronic waste - or e-waste - is growing as computer usage increases around the wor
2006年VOA标准英语（五月）
The International Organization for Migration says dozens of health workers are providing primary health care and other essential medical assistance to thousands of victims of Cyclone Nargis, which struck Burma in early May. Lisa Schlein reports for
VOA标准英语2008年（七月）
You see the larger wing area here. 你们可以看到这儿有面积更大的翅膀。 Also, clearly, it was such a powerful thing,we wanted to try and bring other people but we couldn't figure out how to do it. 而且，这还是件很有影响力的事
TED演讲娱乐篇
生活大爆炸第一季第九集_3：The Cooper-Hofstadter Polarization Okay, I'm leaving for the conference. 好啦，我要去参加会议了。 -Sheldon：Have fun presenting my lucky hunch. 祝你报告我的小运气愉快。 -Leonard：Shel, I
生活大爆炸第一季
By Al Pessin Pentagon 27 November 2007 The U.S. military is providing hundreds of tons of relief supplies to victims of the cyclone in Bangladesh, much of it using a warship and helicopters sent to the region last week from duty in the Middle East. V
VOA常速英语2007年（十一月）
每年，《时代周刊》都选出让世界更美好、更智能、更有趣的发明。今年的也能让你大吃一惊哦！ 1.The Levitating Lightbulb 1.悬浮灯泡 Since he was a child, Simon Morris has been obsessed with making objects float
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In the United States, the fastest growing type of trash is e-waste: computers, TVs and other electronics. Because many e-waste components are toxic, many communities are striving to recycle them more responsibly. From Boulder, Colorado, Shelley Schl
VOA标准英语2008年(十二月)
By David Gollust State Department 07 May 2008 The senior U.S. diplomat in Burma said Wednesday the death toll from the cyclone that hit the southeast Asian country late last week could exceed 100,000. Secretary of State Condoleezza Rice meawnhile say
VOA标准英语2008年（五月）
For one thing, if this was just the Ebbinghaus effect, 首先，如果真是艾宾浩斯效应， then we would expect the moon illusion to disappear for pilots flying high above the clouds 那么我们应该预期月球错觉对于空中的飞行员来
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Science and technology 科学技术 Investigating the asteroids 小行星探测 Dawn's early light 黎明号初试锋芒 A mission to the asteroid belt will visit leftovers from the solar system's formation 小行星带探测任务将造访太阳系形
经济学人科技系列
Some of the tallest trees in the world are under threat from poachers. Parts of the redwood forest park have been closed off after a 400-year old tree was cut down. More and bigger burls are being taken near former logging towns where the economy has
英语听力精选进阶版
Under this head I reckon a monster which, by the various names of Fin-Back, Tall-Spout, and Long-John, 在这个项目下,我不禁想起一种有着许多名称的巨兽来:脊鳍鲸,高喷鲸,长约翰鲸, has been seen almost in every sea and is c
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