听力教程>英语听力：自然百科>自然百科2012年

文章列表

1.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-14
On earth, Hawaii has some of the most spectacular shield volcanoes that are very similar with the volcanoes we see on Venus. The huge gently sloped vo...
2.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-13
In 1989, the space shuttle Atlantis launches the Magellan Probe toward / Venus. After a journey of 15 months, Magellan uses radar eyes to peer through...
3.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-12
And thats the first time; it was return black-and-white panoramas of the Venus surface. These images were extremely important, because it was the firs...
4.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-11
You are there, on the most exciting, nerve-shattering journey in the history of man! Fifty years ago, it was easy for us to imagine Venus, closer to t...
5.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-10
Move away from the sun, and you'd expect things to cool down a little. Venus, the picture of coolness and calm, all pale but gully-cloaked by clouds b...
6.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-9
And its here in a freezer that Messenger will encounter another puzzle: can ice exist on a planet so close to the sun? It's only when the first radar ...
7.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-8
Reason/ you are going to go to Mercury as a travel destination would be this night sight view because it's going to be highly unique in the solar syst...
8.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-7
Like Mercury, the earth takes a beating from the sun's violent temper. Flares, sun storms and other solar hissy fits can cause electronic mayhem for t...
9.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-6
After Messenger's 3 fly-bys, we've now mapped more than 90% of the planet. Taken from around 124 miles, these images are the clearest to date of Mercu...
10.英语听力：自然百科金星和水星旅行指南 Venus and Mercury-5
Mercury's core makes up about 60% of the planet by mass. It's about twice as big as earth. Why would it have such a huge core for such a small planet?...