普通高中课程标准实验教科书 英语必修5 Unit 1 Great scientists

Nicolaus Copernicus was frightened and his mind was confused. Although he had tried to ignore them, all his mathematical calculations led to the same conclusion: that the earth was not the centre of the solar system. Only if you put the sun there di

英语听力：星际动物园 05 Waiting for fifteen thousand years

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科学美国人60秒 SSS Chaotic Orbits Could Cause Catastrophic Collision

Chaotic Orbits Could Cause Catastrophic Collision火星真的会撞地球? Isaac Newton said, I can calculate the motion of heavenly bodies, but not the madness of people. He meant that while people can be unpredictable, the planets are just the oppo

《英语流行话题阅读:语境识词4500》51 Basics of Horoscope

Unit 51 Basics of Horoscope Astrology is the study of how events on Earth are influenced by the Sun, Moon, stars and planets. Technically, horoscope is the term astrologers use for a chart showing the relative positions of stars and planets at a spec

英语听力：星际动物园 02 A spaceship made of plastic

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2006年VOA标准英语-US Launches Decade-Long Mission to Pluto

By David McAlary Washington 19 January 2006 The United States has launched the first spacecraft to the distant, icy planet Pluto. The distance from Earth is so great the journey will take nine years f

2006年VOA标准英语-Astronomers Discover Two Moons Orbiting Pl

By Jessica Berman Washington 22 February 2006 U.S. astronomers have discovered two moons orbiting Pluto, an icy planet smaller than our moon. Scientists found the moons while surveying the sky as part

美国国家公共电台 NPR After Nine Years In Orbit, Kepler Telescope Leaves A Legacy Of Discovery

LULU GARCIA-NAVARRO, HOST: This is Lulu's log, stardate November 4, 2018, where we consider matters of space, the stars and the universe. (SOUNDBITE OF MUSIC) GARCIA-NAVARRO: When looking up at the stars, it's hard not to wonder what else or even who

科学美国人60秒 SSS 混沌轨道可能导致灾难性的碰撞

Chaotic Orbits Could Cause Catastrophic Collision Isaac Newton said, I can calculate the motion of heavenly bodies, but not the madness of people. He meant that while people can be unpredictable, the planets are just the oppositethey glide through sp

英语听力：自然百科 穿越银河系的旅行 Through Milky Way—35

You know, the indications there are a lot of those stars have planets, maybe have them built since planets you know, being like kittens, you know, just dig one, you get a couple. They are probably on the order of the million and million planets out t

英语听力：自然百科 穿越银河系的旅行 Through Milky Way—21

Imagine the disc of our galaxy, if you just took a disc of stars and put it there, gravity would tend to make this disc collapse/ into itself and it would immediately just fall together. That is not what we see with the galaxy. Whats actually going o

英语听力：自然百科 行星旅行指南：木星 Jupiter—10

This vast secret ocean of seething metallic hydrogen, not a molten iron core, is the power house generating Jupiters dangerous energy shroud. But there is one more mystery hidden inside this giant alien onion, the key to the origin of the planets the

英语听力：自然百科 已知的宇宙：外星生命 Alien_Contact-2

Are we alone ?And it ties into all the big questions: how do we get here ? where are we going ?Are we a part of a bigger picture? But for the longest time ,the question was taboo to science . Before the Mid-1990s ,it was considered somewhat embarassi

英语听力：探索发现 2014-07-18 BBC 地平线：陨石的真相-29

Approaching from beneath the planet, asteroid 2012 DA14 passed inside the orbit of our geostationary satellites before heading off to the north. This asteroid had been successfully tracked for a year. And despite its proximity, scientists knew that i

英语听力：探索发现 2014-06-08 BBC 地平线：陨石的真相-12

But there is a downside to Jupiter. It can also deflect asteroids into orbits that cross the Earths path. The Chelyabinsk meteor appears to be one of these typical Earth-crossing events. The likelihood is that it was thrown out of its regular orbit b

英语听力文摘 English Digest 458、外太空有人吗

The Fermi Paradox Back in 1950, the Nobel prize-winning physicist Enrico Fermi was having lunch with friends. Conversation turned to the possibility of extraterrestrial life. According to the popular story, Fermi fell silent for a moment and then ask

英语听力文摘 English Digest 477、地球为什么是圆的？

地球是太阳系从内到外的第三颗行星，也是太阳系中直径、质量和密度最大的类地行星。它也经常被称作世界。英语的地球Earth一词来自于古英语及日耳曼语。地球已有44～46亿岁，有一颗天然

英语听力：自然百科 金星和水星旅行指南 Venus and Mercury-3

Craters here stretch as far as the eye can see. Although no human has ever set foot on Mercury, we have a pretty good idea of what you would see. If you are walking around on the surface of Mercury, it will look outwardly a lot like the moon. When yo

英语听力文摘 English Digest 311、宇宙生命奥秘

The Habitable Zone 宇宙生命奥秘 适居带(HZ)是天文学上给一种空间的名称，指的是那里的情况有利于生物的存在，或许可以发现像地球这样的生命体。有两种区域是有可能的，一个是在行星系内，

英语听力文摘 English Digest 275、类地行星发现者

Terrestrial Planet Finder 瑞士科学家米歇尔梅耶带领欧洲科学家小组宣布发现了一颗新的可能适宜人类居住的星球，现在，他又制定了更大的目标：寻找地外生命的迹象。该发现小组的成员斯蒂凡尤