Passage one.

　　南极考察队对于V湖冰面下生物的探索

　　While some scientists explore the surface of antarctica, others are learning more about a giant body of water four kilometres beneath the ice pack.

　　Scientists first discovered lake Voss dock 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 Vohs dog 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 microorganisms may be living in lake vohs stock 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.

　　Questions 9 to 11. Based on the passage you have just heard.

　　Question 9. What did scientists first use to discover lake V stock in the 1970s?

　　答案：using radio waves that penetrate the ice

　　Question 10. What do scientists think about lake vast dock?

　　答案：microorganisms may be living in lake vohs stock closed off from the outside world for more than 2 million years

　　Question 11. What do the scientists hope their discoveries will do?

　　答案：shed light on life in outer space, which might exist in similar dark and airless conditions