单选题 Questions 23 to 25 are based on the passage you have just heard.
单选题 What were the scientists worried about soon after the Gulf War?
【正确答案】 D
【答案解析】[听力原文]23-25
When Iraqi troops blew up hundreds of Kuwaiti oil well at the end of Gulf War, scientists feared environmental disaster. Would black powder in the smoke from the fires circle the globe and block out the sun?
Many said "No way"; rain would wash the black powder from the atmosphere. But in America, air sampling balloons have detected high concentrations of particles similar to those collected in Kuwait. It has formed huge lakes in the Kuwaiti desert. They trap insects and birds, and poison a variety of other desert animals and plants.
The only good news is that the oil lakes have not affected the underground water resources. So far, the oil has not been absorbed because of the hard sand just below the surface.
Nothing, however, stops the oil from evaporating. The resulting poisonous gases are choking nearby residents.
Officials are trying to organize a quick cleanup, but they are not sure how to do it. One possibility is to burn the oil. Get those black-powder detectors ready.

[精解] 题干问:“海湾战争后不久,科学家们最担心的是什么?”听力材料的开始说“…scientists feared environmental disaster.Would black powder in the smoke from the fires circles the globe and block out the sun?”所以答案D“来自大火中黑色粉末的扩散”符合题意。
单选题 What was the good news for scientists?
【正确答案】 D
【答案解析】[精解] 题干问:“对于科学家来说的好消息是什么?”听力材料中说“The only good news is that the oil lakes have not affected the underground water resources.”这与答案D的意思一致,所以本题答案选D。
单选题 What are the officials trying to do at the moment?
【正确答案】 C
【答案解析】[精解] 题干问:“此时政府官员正在努力做什么?”听力材料最后说“Officials are trying to organize a quick cleanup,but they are not sure how to do it.One possibility is to burn the oil.Get those black-powder detectors ready.”即政府官员想清除遗留在沙漠中的石油,所以答案选C。