Experts Meet to Understand Decrease in Humpback Whales Off Hawaii Every winter, thousands of humpback whales migrate from Alaska to the warmer waters near the Hawaiian Islands. There, they have sex and give birth before making their return trip north

发表于:2018-12-19 / 阅读(251) / 评论(0) 分类 2018年VOA慢速英语(十一)月

There are many theories about what happened to the missing Malaysia Airlines plane but confirmed information is hard to come by. We\'ll tell you what we know today on CNN Student News. \It\'s been 13 days since the flight with 239 people aboard vanis

发表于:2018-12-19 / 阅读(76) / 评论(0) 分类 CNN2014年(三)月

First up today, security in Sochi, the 2014 winter Olympics begins there on February 7, Russian president Putin says his country will do everything possible to keep the game safe and protect visitors to Sochi. 40K Russian police and security forces w

发表于:2018-12-19 / 阅读(72) / 评论(0) 分类 CNN2014年(二)月

This is Scientific American-60 Seconds Science.Im Julia Roson.Got a minute?The worlds mountain glaciers contain just 1%of all the ice on earth.But their rapid melting accounts for about a third season sea level rise.Most of these glaciers that starte

发表于:2018-12-24 / 阅读(58) / 评论(0) 分类 2015年Scientific American(六)月

北京奥运28大项 参与,竞争,分享,进步 Swimming 游泳 FREESTYLE 自由泳 Freestyle means that in an event so designated the swimmer may swim any style, except that in individual medley or medley relay events, freestyle means any style other than backstr

发表于:2018-12-30 / 阅读(89) / 评论(0) 分类 奥运28大项比赛

The surface of this long sheet-iron cigar no longer offered a single protrusion that could hamper its maneuvers. 在这根长长的钢铁雪茄表面,连一处妨碍它行动的细小突出部分也没有。 I returned to the lounge. 我回到了客厅

发表于:2018-12-31 / 阅读(57) / 评论(0) 分类 《海底两万里》中英双语有声读物

By Heda Bayron Hong Kong 05 August 2007 An aerial view of the Siachen Glacier, northwest of Jammu, India U.S. scientists say clouds of man-made haze that blanket southern and eastern Asia are helping accelerate the melting of the Himalayan glaciers.

发表于:2019-01-04 / 阅读(104) / 评论(0) 分类 2007年VOA标准英语(八月)

This could be the most terrifying sight in the solar system: clear skies above a bottomless pit, an infernal drop into the depth of Jupiters endless sky. You may have raindrops evaporating into the hot interiors of Jupiter, but there is no ocean down

发表于:2019-01-08 / 阅读(70) / 评论(0) 分类 自然百科2012年

shows it really quite well. In order to bring back a piece of this mystery, his team of divers will be risking their lives. Diving problems, you got currents, tides, waves. We havent been here before. We haven't been this deep, though. One of those c

发表于:2019-01-22 / 阅读(76) / 评论(0) 分类 自然百科2011年

Take a night flight, like Galileos, over the surface of Io and the view down to the churning lava lakes would be unforgettable. Imagine then a visit to the surface. The landscape might look quite a bit like a red and yellow sulfur-painted version of

发表于:2019-01-22 / 阅读(68) / 评论(0) 分类 自然百科2012年

Gas escaping into space from the plumes is energized by Jupiters magnetosphere, creating an intense band of ionizing radiation that bombards a surface already soaked in emissions. If you went out relatively unprotected with, like a normal spacesuit f

发表于:2019-01-22 / 阅读(93) / 评论(0) 分类 自然百科2012年

In the four decades since our robots first arrived, the once fuzzy ball at the end of our telescopes has steadily focused into a red planet we can understand, and it is not a welcoming place. The problem is the atmosphere is so thin and cold that wat

发表于:2019-01-26 / 阅读(67) / 评论(0) 分类 自然百科2012年

Bacteria Thrive on Ocean Plastic Debris 海洋中的塑料碎片上滋养大量细菌 Plastic pollution in the ocean is harboring colonies of bacteria that could be harmful, not only to marine animals, but also to humans. 海洋中的塑料污染滋生

发表于:2019-02-01 / 阅读(57) / 评论(0) 分类 VOA常速英语2013年(九月)

Africa Kicks-up A Lot of Dust 非洲大陆的灰尘飘向美国 Bits and pieces of the African continent are falling on the United States and surrounding regions much of the year. Scientists say large amounts of African dust may be having major effec

发表于:2019-02-01 / 阅读(62) / 评论(0) 分类 VOA常速英语2013年(九月)

But still be able to use your hands. Not only will you want to move your fingers, you want to move around. NASAs lunar electric rover is a prototype for future missions to the moon and Mars. Its part vehicle and part space suit. I can just picture be

发表于:2019-02-03 / 阅读(60) / 评论(0) 分类 自然百科2012年

Before we take this giant leap, we need to be able to carry everything needed for a three-year -round trip with us. This is a much larger effort than getting to the moon. Its the Apollo mission on steroids. At this point we know at least as much as t

发表于:2019-02-03 / 阅读(76) / 评论(0) 分类 自然百科2012年

By Kevin Billinghurst Stockholm 10 October 2007 The 2007 Nobel Prize for Chemistry has been awarded to Gerhard Ertl of the Max Planck Society in Berlin. Kevin Billinghurst has the story from Stockholm. The Royal Swedish Academy of Sciences honors Pr

发表于:2019-02-04 / 阅读(102) / 评论(0) 分类 2007年VOA常速英语(十月)

China's lunar probe Chang'e-3 has moved a step closer to the moon. The probe descended from a 100 kilometer-high lunar orbit to an elliptical orbit with its nearest point, just 15 kilometers from the moon's surface. China's lunar probe Chang'e-3 ente

发表于:2019-02-05 / 阅读(86) / 评论(0) 分类 CCTV9英语新闻2013年12月

We might not be alone in the universe. Actually, it may be confirmed as a very crowded place by new computer models developed to help identify habitable planets. Estimates of places that can sustain life have been based on the likelihood of them havi

发表于:2019-02-13 / 阅读(59) / 评论(0) 分类 英语听力精选进阶版

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(109) / 评论(0) 分类 2017年Scientific American(三)月