标签：planets 相关文章

英语听力：探索发现 科学新发现：我们的大气层-26

bubbles in the atmosphere.On other planets with denser atmospheres,larger, more complex creatures can take to skies.The thick air could support them alofty,allowing bulky reptiles to fly and glide.This creature probably couldn't be able to fly very l

发表于:2018-12-03 / 阅读(90) / 评论(0) 分类 探索与发现2014年

Supermassive Black Holes 超大质量黑洞 - 1

In March 2000, two astronomers made an extraordinary discovery, one that is set to overturn our understanding of how the universe formed. We're never going to see a time like this in astronomy again.

发表于:2018-12-07 / 阅读(390) / 评论(0) 分类 超大质量黑洞

VOA慢速英语2010年-EXPLORATIONS - Planetariums Take Viewe

STEVE EMBER: Im Steve Ember. BARBARA KLEIN: And Im Barbara Klein with EXPLORATIONS in VOA Special English. A planetarium is a theater with a rounded ceiling onto which images of the stars and planets are projected. Planetariums give educational shows

发表于:2018-12-07 / 阅读(98) / 评论(0) 分类 2010年VOA慢速英语(九)月

72. Saving the World p.498

A student is talking to her teacher. S: I hear that scientists are planning to study asteroids and meteors, right? T: Yes. They want to determine whether Earth is in danger of being struck by such a r

发表于:2018-12-08 / 阅读(424) / 评论(0) 分类 赖世雄中级美国英语

新概念英语第四册Lesson 43 Are there strangers in spac

Lesson 43 Are there strangers in space? 宇宙中有外星人吗？ First listen and then answer the following question. 听录音，然后回答以下问题。 What does the 'uniquely rational way' for us to communicate with other intelligent beings

发表于:2018-12-08 / 阅读(593) / 评论(0) 分类 新概念英语第四册

2015-02-25 BBC:星光七纪元-11

This whole process explains the distinctive shape of all solar systems including our own. The reason why you see all the planets going around the Sun in the same direction on the same plane is because they are all formed from the same belt, from the

发表于:2018-12-27 / 阅读(144) / 评论(0) 分类 探索与发现2015年

Alien Neighbors 寻访外星人 12

How likely that technology will destroy those who invented it? The Drake Equation doesn’t exactly narrow the field. Depending on the variables, the number of intelligent civilizations could be zero

发表于:2019-01-02 / 阅读(176) / 评论(0) 分类 寻访外星人

Alien Neighbors 寻访外星人 14

发表于:2019-01-02 / 阅读(172) / 评论(0) 分类 寻访外星人

Alien Neighbors 寻访外星人 13

发表于:2019-01-02 / 阅读(187) / 评论(0) 分类 寻访外星人

AGRICULTURE REPORT - Farmers Almanacs

AGRICULTURE REPORT - Farmers Almanacs By Mario Ritter Broadcast: Tuesday, September 28, 2004 This is Gwen Outen with the VOA Special English Agriculture Report. In seventeen ninety-two, in the United

发表于:2019-01-02 / 阅读(94) / 评论(0) 分类 农业与发展

VOA慢速英语--科学家发现太阳系中最古老的天体

Alien Asteroid Could Be Oldest Object in Our Solar System Astronomers have been closely watching an object that travels in an orbit around our sun. Astronomers say this object -- an asteroid -- circles the sun in the same orbital path as the planet J

发表于:2019-01-03 / 阅读(146) / 评论(0) 分类 2018年VOA慢速英语(六)月

VOA慢速英语--美国航天局扩大搜寻能居住的遥远行星

US Space Agency Expands Search for Distant Planets Able to Support Life The search for worlds orbiting distant stars will intensify in the coming weeks when the American space agency NASA launches a spacecraft. Scientists hope the spacecraft will enl

发表于:2019-01-03 / 阅读(73) / 评论(0) 分类 2018年VOA慢速英语(四)月

为支持生命,美国太空总署扩大对遥远行星的搜索

US Space Agency Expands Search for Distant Planets Able to Support Life The search for worlds orbiting distant stars will intensify in the coming weeks when the American space agency NASA launches a spacecraft. Scientists hope the spacecraft will enl

发表于:2019-01-03 / 阅读(88) / 评论(0) 分类 2018年VOA慢速英语(四)月

与美国小学生一起学英文第12册 第12期:轨道

Orbit 轨道 Do you know what an orbit is? 你知道什么是轨道吗？ An orbit is the path of a planet when it moves around the sun. 轨道是行星围绕太阳运动的轨迹。 It is similar to a cycling track. 它类似于自行车赛道。 As

发表于:2019-01-10 / 阅读(85) / 评论(0) 分类 与美国小学生一起学英文第12册

英语听力：探索发现 科学新发现：我们的大气层-8

Our planet was spared this fate. The magnetic field generated by the Earths core blocked the solar wind, preventing it from blasting away the fragile air. But the Earths atmosphere was still very different from the one we breathe today. It contained

发表于:2019-01-23 / 阅读(72) / 评论(0) 分类 探索与发现2014年

英语听力：探索发现 科学新发现：我们的大气层-7

To discover why these twin planets followed separate paths and to explore what gave us our precious atmosphere, we have to travel back, back four and a half billion years to the birth of the solar system itself. The birth of the solar system created

发表于:2019-01-23 / 阅读(73) / 评论(0) 分类 探索与发现2014年

Who Was Leonardo da Vinci 达·芬奇 THE UNIVERSE

IN THE SECOND CENTURY A.D., THERE WAS A FAMOUS GREEK ASTRONOMER NAMED PTOLEMY. HE BELIEVED THAT THE EARTH WAS THE CENTER OF THE UNIVERSE. THE OTHER PLANETS AND THE SUN MOVED AROUND THE EARTH. PEOPLE ACCEPTED THIS BELIEF UNTIL THE MIDDLE OF THE 1500S.

发表于:2019-02-13 / 阅读(82) / 评论(0) 分类 名人认知系列 Who Was

Step by Step 3000 第2册 Unit11:Space(2)

Part 2. Astronomers discover solar system. Keywords. another solar system, planets, challenge. Vocabulary. constellation, astronomy, full-fledged, Jupiter. A. Listen to a science report, write down the information about the new solar system. What sci

发表于:2019-02-15 / 阅读(76) / 评论(0) 分类 Step by Step 3000 第二册

经济学人227:业余天文学家加入"猎星人"行列

A new world in your bedroom 卧室里的新天地 Amateur astronomers join the ranks of the planet hunters 业余天文学家加入猎星人行列 IN AN age of professionals, the ability of amateur scientists to make meaningful contributions has almo

发表于:2019-02-17 / 阅读(66) / 评论(0) 分类 经济学人综合

英闻天下——283 An Asteroid Misses Earth, Causes No Public Panic

Meanwhile, a 45-meter wide asteroid has hurtled safely past earth after it came within 27-thousand kilometers, making it the closest known flyby for a rock of its size. The asteroid, named 2012 DA14 came closer to earth than many communication and we

发表于:2019-02-21 / 阅读(101) / 评论(0) 分类 英闻天下
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