听力原文：
Passage One

While some scientists explore the surface of Antarctica, others are learning more about a giant body of water four kilometers beneath the ice pack. Scientists first discovered Lake Vostok in the 19 seventy's by using radio waves that penetrate the ice. Since then, they have used sound waves and even satellites to map this massive body of water.
How does the water in Lake Vostok remain liquid beneath an ice sheet? The thick glacier above acts like an insulating blanket and keeps the water from freezing, says Martin Siegert, a glaciologist from the university of Wales. In addition, geothermal heat from deep within the earth may warm the hidden lake. The scientists suspect that micro-organisms may be living in Lake Vostok, closed off from the outside world for more than 2 million years.
Anything found there will be totally alien to what's on the surface of the earth to see a good scientists are trying to find a way to drill into the ice and draw water samples without causing contamination. Again, robots might be the solution. If all goes as planned, a drill shaped robot will through the surface eyes. When it reaches the lake, it will release another robot that can swim in the lake, take pictures, and look for signs of life. The scientists hope their discoveries will shed light on life in outer space, which might exist in similar dark and airless conditions.
Recently, close up pictures of jupiter, as moon europa shows signs of water beneath its icy surface. Once tested in antarctica, robots could be sent to europa to search for life there too.

Q9：What did scientists first use to discover Lake Vostok in the 1970s?

短文开头部分提到，在 20 世纪 70 年代，科学家们通过可以穿透冰层的无线电波首次发现了沃斯托克湖。 

听力原文：
Passage One

While some scientists explore the surface of Antarctica, others are learning more about a giant body of water four kilometers beneath the ice pack. Scientists first discovered Lake Vostok in the 19 seventy's by using radio waves that penetrate the ice. Since then, they have used sound waves and even satellites to map this massive body of water.
How does the water in Lake Vostok remain liquid beneath an ice sheet? The thick glacier above acts like an insulating blanket and keeps the water from freezing, says Martin Siegert, a glaciologist from the university of Wales. In addition, geothermal heat from deep within the earth may warm the hidden lake. The scientists suspect that micro-organisms may be living in Lake Vostok, closed off from the outside world for more than 2 million years.
Anything found there will be totally alien to what's on the surface of the earth to see a good scientists are trying to find a way to drill into the ice and draw water samples without causing contamination. Again, robots might be the solution. If all goes as planned, a drill shaped robot will through the surface eyes. When it reaches the lake, it will release another robot that can swim in the lake, take pictures, and look for signs of life. The scientists hope their discoveries will shed light on life in outer space, which might exist in similar dark and airless conditions.
Recently, close up pictures of jupiter, as moon europa shows signs of water beneath its icy surface. Once tested in antarctica, robots could be sent to europa to search for life there too.

Q10：What do scientists think about Lake Vostok?

短文中提到，科学家们怀疑在沃斯托克湖中有微生物存活，这些微生物可与外界隔绝长达两百多万年的时间。 故选项 B 正确。

听力原文：
Passage One

While some scientists explore the surface of Antarctica, others are learning more about a giant body of water four kilometers beneath the ice pack. Scientists first discovered Lake Vostok in the 19 seventy's by using radio waves that penetrate the ice. Since then, they have used sound waves and even satellites to map this massive body of water.
How does the water in Lake Vostok remain liquid beneath an ice sheet? The thick glacier above acts like an insulating blanket and keeps the water from freezing, says Martin Siegert, a glaciologist from the university of Wales. In addition, geothermal heat from deep within the earth may warm the hidden lake. The scientists suspect that micro-organisms may be living in Lake Vostok, closed off from the outside world for more than 2 million years.
Anything found there will be totally alien to what's on the surface of the earth to see a good scientists are trying to find a way to drill into the ice and draw water samples without causing contamination. Again, robots might be the solution. If all goes as planned, a drill shaped robot will through the surface eyes. When it reaches the lake, it will release another robot that can swim in the lake, take pictures, and look for signs of life. The scientists hope their discoveries will shed light on life in outer space, which might exist in similar dark and airless conditions.
Recently, close up pictures of jupiter, as moon europa shows signs of water beneath its icy surface. Once tested in antarctica, robots could be sent to europa to search for life there too.

Q11：What do the scientists hope their discoveries will do?

短文结尾处提到，科学家们希望他们的发现能够为外太空存在生命提供线索，它们可能存在于类似的黑暗和真空环境中。 故选项 D 正确。