英语听力：自然百科 金星和水星旅行指南 Venus and Mercury-17

 You never guess the dangers on the ground from orbit, except maybe for this, massive, double-barreled storms hovering¹ above the poles.    Of this, what we called dipole feature’s trailing around, we don't know what, really what they are, but the whole feature/ itself trailing a thousand or 2 kilometers across, it’s not very big, but it has a kind of figure， a type of look to it.    

 

    Believed to be created by winds that roar around the equator at speeds up to 230 miles per hour, these hurricanes can split into 3 and even 4. And the wild weather doesn't end there, because the hottest planet in the solar system even has snow, but not as we know it.

 

    All of a sudden in the radar² images all the mountains go white, now that’s because there are some kind of high reflective coating, it wouldn't look white to your eyes, if you could actually land on the surface of Venus. It might look shining, because we actually think it might be some sort of metallic³ coating, almost like a pirate at full escort, so something sparkling, which to me is even better than looking at snow.

 

    These are just some of the puzzles that the European Space Agency's Venus Express now in orbit is hoping to solve.  As we begin to understand how carbon dioxide controls our climate, there's never been a better time to learn lessons from our neighbor. 

 

    What you try to solve now would be this very, very dense⁴ atmosphere, very complex weather patterns with new data from Venus Express. We are really learning by mapping out in 3 dimensions how the atmosphere behaves.   

 

    Unprotected by a magnetic shield, Venus is still being robbed of precious water. Venus Express has seen how the solar wind eats away at the atmosphere. 

 

    You can see that even today that actually water is still escaping in the form of Oxygen and Hydrogen. That’s an indication that there has been water on.(Venus).

 

1 hovering   

鸟( hover的现在分词 )； 靠近（某事物）； （人）徘徊； 犹豫

参考例句：

• The helicopter was hovering about 100 metres above the pad. 直升机在离发射台一百米的上空盘旋。
• I'm hovering between the concert and the play tonight. 我犹豫不决今晚是听音乐会还是看戏。

2 radar   

n.雷达，无线电探测器

参考例句：

• They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
• Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。

3 metallic   

adj.金属的；金属制的；含金属的；产金属的；像金属的

参考例句：

• A sharp metallic note coming from the outside frightened me.外面传来尖锐铿锵的声音吓了我一跳。
• He picked up a metallic ring last night.昨夜他捡了一个金属戒指。

4 dense   

a.密集的，稠密的，浓密的；密度大的

参考例句：

• The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。
• The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。