英语听力：自然百科 金星和水星旅行指南 Venus and Mercury-15
时间：2014-05-29 06:37:11
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（单词翻译）
One of the really exciting and high-level scientific interests is whether Venus is geological active today, because there are reasons to think of the clouds on Venus only exist, because there is ongoing1 geological activity, so this is one of the biggest secrets of Venus, something that we want to find out.
In recent years, finding the source of Venus’ thick atmosphere has become surprisingly relevant for all of us down here on earth.
Half a million tons of
sulfur2 dioxide are spewed into/ the atmosphere every year.
The whole greenhouse effect was not really recognized as a significant effect to influence/ planetary climates until we went to Venus and found that’s said to be in 90 degrees
Fahrenheit3 to 900 degrees Fahrenheit.
And we said, wow, what's wrong with this. Learned about this and it taught us about the greenhouse effect.
Ever wonder how alien a planet could be, how bad a climate can get? Try the planet next door. The best way to experience Venus is to
hitch4 an imaginary ride on the
Soviet5 Venera Probe.
Well, it would be a wild drive. The clouds started about 40 miles up, some 5 times higher than the earth.
What were those clouds made out of? They may be made out of water, they may be made out of completely different substance, and made out of sulfurous gas. Everywhere we go, then the atmosphere can try in eager way. As you get deeper, things heat up. The thickening atmosphere allows the sun's heat in but not out, it's also getting
dense6, so dense your probe drops like a coin in water.
As we descended，we would gradually, on surface that gradually had appeared to us as if we were approaching the bottom of the ocean.
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