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VOA慢速英语2011--Fourteen Scientists and Activists Who ar

EXPLORATIONS - Fourteen Scientists and Activists Who are Changing the World STEVE EMBER: Im Steve Ember. SHIRLEY GRIFFITH: And Im Shirley Griffith with EXPLORATIONS in VOA Special English. Every year, the National Geographic Society honors scientists

发表于:2018-12-16 / 阅读(70) / 评论(0) 分类 2011年VOA慢速英语(五)月

美国学生世界地理教材 第152期:新月之国(1)

EVERY place is east of some other place. 每一个地方都在另一个地方的东边。 America is east of China. Europe is east of America. 美国在中国的东边，欧洲在美国的东边。 But the only place called THE East, with a capital T

发表于:2018-12-28 / 阅读(61) / 评论(0) 分类 美国学生世界地理教材

英语听力：自然百科 行星旅行指南：木星 Jupiter—1

Life feeling a bit ordinary? Travel choices a bit tame? Head beyond the asteroid belt for an out-of-this-world experience. Welcome to Jupiter, home of high-adrenaline adventure. Plunge into its mysterious depth. You drop through the clouds, it would

发表于:2019-01-08 / 阅读(76) / 评论(0) 分类 自然百科2012年

英语听力：自然百科 行星旅行指南：木星 Jupiter—19

One day we might develop the magnetic field technology necessary to keep a human alive within Jupiters radiation environment. But in the near future, our exploration will continue by machine. The robotic program isnt about robots. Its a profoundly hu

发表于:2019-01-22 / 阅读(85) / 评论(0) 分类 自然百科2012年

英语听力：自然百科 行星旅行指南：木星 Jupiter—18

Every time we send aspacecraft to answer questions, we end up asking more. Clearly, a return to Jupiter isn't to stars. (Here we go.) In 2003, with fuel andpower running low, Galileo's 14-year odyssey was brought to an end,deliberately to ensure Euro

发表于:2019-01-22 / 阅读(74) / 评论(0) 分类 自然百科2012年

英语听力：自然百科 行星旅行指南：木星 Jupiter—17

As these robot submarines accomplish great missions, the possibility of one day melting our way into Europas deep ocean is moving from fiction toward fact. Lets just imagine, there were on a little spacecraft with the capability to melt to the ice, w

发表于:2019-01-22 / 阅读(74) / 评论(0) 分类 自然百科2012年

英语听力：自然百科 行星旅行指南：木星 Jupiter—15

When Galileo took a closer look at Europa, the picture changed. Europa is a fascinating object. If you imagine descending onto a world that looks every place like the frozen ways of the Arctic and the Antarctic, youll get a pretty good impression of

发表于:2019-01-22 / 阅读(78) / 评论(0) 分类 自然百科2012年

英语听力：自然百科 行星旅行指南：木星 Jupiter—16

the processes that hit Io or operating on Europa as well, but on a less dramatic scale. and so was this constant change(s) in Jupiter's gravitational pull that is distorting the surface and that's generating heat in the interior. This is a clue to Eu

发表于:2019-01-22 / 阅读(78) / 评论(0) 分类 自然百科2012年

科学美国人60秒 SSS Jupiter Moon to Be Searched for Life

Jupiter Moon to Be Searched for Life去欧罗巴寻找生命 And this mission would be NASAs first mission that is directly tasked with searching for signs of life on another world since the Viking Spacecraft were given that task back in the 1970s on

发表于:2019-02-14 / 阅读(113) / 评论(0) 分类 2017年Scientific American(三)月
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