听力教程>英语听力：自然百科>自然百科2008年

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1.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit03
Launched in 1977, Voyager II explored the outer planets and their weird moons, moving ever deeper into space, into regions completely mysterious to us...
2.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit04
...in Mars. Although it was completely wrong about Mars and everything he said about Mars practically was wrong. But, he built up interest in the plan...
3.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit05
Understanding how life got going on our own planet will help us target where we look for it in space, both within the solar system and beyond. Biophys...
4.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit06
.....green plants ultimately. When it first appeared therefore, it would have been seen as a poison, it would have been a pollutant. But gradually, th...
5.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit07
And so with Magellan weve got the first chance, one of the first chances, ok, to really get a complete map and view of it. The Venusian landscape has ...
6.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit08
(NASA Administrator Dan) Golden accepts that the search for life on Mars is not over. If we wanna find out what Mars is like, what its weather pattern...
7.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit09
He wears gloves and cleans his tools with alcohol to avoid contaminating the ancient salt samples with modern microorganisms. The salt round about us ...
8.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit10
cold conditions that earth has to offer. Professor Freeman believes these rugged microorganisms are probably capable of surviving on Mars. Mars is cer...
9.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit11
We have reasons to suspect, based on recent high resolution photography of the surface, that there may be a subsurface ocean there. And where we find ...
10.英语听力：自然百科探索世界奥秘之Alien Neighbors (寻访外星人) Unit12
How likely that technology will destroy those who invented it? The Drake Equation doesnt exactly narrow the field. Depending on the variables, the num...