录音原文
Devil’s Tower, the first national monument in America, could almost be mistaken for the stump of an enormous tree. Its sheer rock sides sweep up from a broad until they cut off abruptly at the flat summit. Rising more than 1,000 feet in the middle of the gently rolling plains of Wyoming, the massive column of rock, looks as though it was dropped down into this location from a different time and place.
In a sense, it was, Devil’s Tower is a relic of the past. When the melt rock of the earth’s core forced its way to the surface to form the throat of a volcano, as the centuries passed, the rock cooled and hardened, shrinking and cracking into long columns, born in fire and fury. Devil’s Tower was then shaped by the slow, gentle work of wind and water. The outer s of the volcano were worn away until the hard core stood completely exposed.
It is small wonder that an Indian legend described Devil’s Tower as being formed by supernatural powers. The legend says that when seven girls were attacked by bears, they took refuge on top of a small rock, and they appealed to the Rock God for help. The God caused the rock to grow and to lift the girls far above the ground, while it sides were scored by the claws of the angry bears. Even today, says the legend, the girls can be seen above the towering rock. As seven shining stars in the night sky.
9. What does the Devil’s Tower look like?
10. What cause the volcano’s outer s to wear away?
11. What does the Indian legend say about the Devil’s Tower?
12. How did the Rock God help the seven girl in the Indian legend?
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