Question

阅读理解

阅读下面短文，从A、B、C、D四个选项中选出最佳答案。

　　On the night of May 7, 1942, a plane took off from an Air Force base in England to stop German 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 fights but he wasn't the last. His experience was repeated several times by pilots during World War Ⅱ in 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 animals－animals 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 invisible 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 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.

1．The best statement of the main idea of this passage is that ________.

[　　]

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 completely explained

2．The strange orange lights were first seen ________.

[　　]

A．from the ground

B．from a rocket ship

C．during World War Ⅰ

D．during World War Ⅱ

3．The theory says that during the daytime the space animals ________.

[　　]

A．glow brightly in the sky

B．are invisible

C．can be seen from earth

D．visit the earth's surface

4．If the space animal theory is true, the creatures go down to the lower regions in order to ________.

[　　]

A．escape detection

B．arouse curiosity

C．search for man-made energy

D．make contact with man

5．The space animal theory would seem to indicate that ________.

[　　]

A．living creatures are extremely adaptable

B．life in space is impossible for man

C．the fittest creatures always survive

D．life cannot exist in the depth of the sea

Answer 1

答案：C;D;B;C;A
解析：

C;D;B;C;A