2. 外语
  3. 　　On the night of May 7, 1942, a plane took off from an Air Force base in England to stop Germa fighters over the English Channe

　　On the night of May 7, 1942, a plane took off from an Air Force base in England to stop Germa fighters over the English Channe

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问题 　　On the night of May 7, 1942, a plane took off from an Air Force base in England to stop Germa fighters over the English Channel. Pilot of the plane was Captain Thomas Nash. Looking eastward, Nash saw twelve orange lights in a row , moving at a fantastic rate of speed. As a sophisticated flyer, he had never seen anything like them. Thinking that they might be a new German weapon, he decided to chase them. But when he swung the plane around and headed directly for the lights, they vanished.
　　Captain Nash may have been the first to see such orange lights but he wasn’ t the last. His experience was repeated several times by pilots during World WarⅡin Europe and the Far East. What were they? No one knows for sure, but there is an interesting theory to explain them. According to this theory, the orange lights are space animalsanimals specially adapted to life in the upper atmosphere just as some creatures are adapted to life at the bottom of the sea. These space animals, the theory says, live so far up in the atmosphere that they are invisibl from earth. They feed in part on the air and partly on energy from sunlight. Being almost pure energy themselves , they can adjust their bodies to glow at night. During the day they become invisible.
　　Before World War Ⅱ, continues the theory, there was little radiated energy available on the earth’ s surface. Then came the development of rockets, atomic reactors, and hydroelectric plants The space creatures are attracted by these sources of energy. At night when no energy emitted from sunlight, they go down into the lower levels to search a meal. They may even drift into the scope of human eyesight. This explains the fact that they have been sighted periodically from the earth since 1942.  
The best statement of the main idea of this passage is that_______.
选项 A、Captain Nash saw twelve orange lights moving at a fantastic rate of speed
B、Captain Nash may have been the first to see lights in space
C、according to an interesting theory, the orange lights are space animals
D、the mysteries of nature can be completedly explained
答案C
解析 全文大意为“在二战中宇航员看到一种桔色光线但又很快消失，同时又有一种理论来解释这种现象”。选项A只是表面现象；选项B、D均不正确。
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