DeepinsideamountainnearSweetwaterinEastTennesseeisabodyofwaterknownastheLostSea.ItislistedbytheGuinnessBookofWorldRecordsastheworld’slargestundergroundlake.TheLostSeaispartofanextensive(covering

Question

Deep inside a mountain near Sweetwater in East Tennessee is a body of water known as the Lost Sea. It is listed by the Guinness Book of World Records as the world’s largest underground lake. The Lost Sea is part of an extensive (covering a large area) and historic cave system called Graighead Caverns.

The caverns have been known and used since the days of the Cherokee Indian nation. The cave expands (becoming large in size) into a series of huge rooms opening on the side of the mountain. One mile from the entrance in a room called “ The Council Room ” many Indian artifacts( 手工艺品 )have been found.

For many years it had been considered that there was a large underground lake somewhere in a cave but it was not discovered until 1905. That year a thirteen-year-old boy named Ben Sands crawled into a small opening three hundred feet underground. He found himself in a large cave half filled with water.

Today tourists visit the Lost Sea and ride far out onto it in glass-bottomed boats. More than thirteen acres ( 英亩 ) of water have been mapped out so far and still no end of the lake has been found. Even though teams of divers have tried to explore the Lost Sea the full extent (the size of a large area)of it is still unknown.

1. The Lost Sea is completely different from any others because it is______.

A. part of a historical cave system

B.the biggest underground lake in the world

C.listed in the Guinness Book of World Records

D.the largest body of water in Tennessee

2. The Graighead Caverns have been known______.

A.throughout history

B.since the time of the Indian nation

C.since 1905

D.since divers explored them

3. Who discovered the Lost Sea in recent times?

A. Ben Sands. 　　　　　　　　　　　　　　　　　　　　　　　　      B. Boys.

C. The Cherokee Indians. 　　　　　　　　　　　　　　　　　　　　 D. Scientists.

4.What was found in “ The Council Room ” ?

A. A small natural opening. 　　　　　　　　　　　　　　    B. A large cave.

C. Another series of rooms. 　　　　　　　　　　　　　　   D.Manyold Indian objects.

5. It can be inferred from the passage that the Graighead Caverns presently serve as______.

A. an underground lab 　　　　　　　　　　　　　　　　　　   B.an Indian meeting ground

C.a place of interest 　　　　　　　　　　　　　　　　　　　　　　　　 D.a museum

 

Answer 1

答案：A;B;A;D;C
解析：
1、从”The Lost Sea is part of an extensive(covering a large area)and historic cave system called Graighead Caverns.”中可以得出. 2、原文明确告知：The caverns have been known and used since the days of Cherokee Indian nation. 3、”it was not discovered until 1905. おThat year a thirteen-year-old boy named Ben Sands crawled into a small opening three hundred feet underground.”中可以看出发现者是谁. 4、依据原文第二段的最后两句可得出答案。 5、从原文中“Lost Sea is listed by the Guinness Book of World Records as the world’s largest underground lake.”“Today tourists visit the Lost Sea and ride far out onto it in glass-bottomed boats”可知如今它已成为一处名胜。