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Most people like to escape the summer he...

Most people like to escape the summer heat with a trip to the beach or a swim in the local pool, but here’s a better choice for you: Coudersport Ice Mine.

The mine was a roadside attraction in Pennsylvania’s Appalachian Mountains for many years until it was suddenly closed down for some reason. But after being closed for nearly a quarter of a century, this hidden summer getaway was  once again open to the public in 2014, reports Living on Earth.

The mine isn’t just a great place to escape the summer heat; it’s also something of an unsolved mystery. Strangely, the cave only produces ice in the summertime, and it tends to produce more ice when the surrounding temperature gets higher. When winter falls and snow covers the hilltops, the ice in the cave melts. The cave is so mysterious that some locals even say (falsely) that the cave is man-made.

Originally discovered in 1894, the mine was first used to store meat and for ice harvesting. By the early 1900s, however, it was changed into a tourist attraction. Inside the cave in the summer it gets cold, like walking into a fridge.

Though the cave remains largely mysterious, there are theories. Experts say that cold winter air gets into the cave through cracks in the rocks, and due to the unusual interconnection of the cracks here, that cold air gets concentrated into the cave. The reason ice only forms in the summer is because of the seasonal humidity (湿度) increase in the surrounding atmosphere, along with an increase in groundwater, which becomes exposed to the freezing air. In the winter, warm air trapped in the rocks from the summer escapes and melts the ice.

Part of the charm of the Coudersort Ice Mine, though, is that it keeps much of its mystery. Perhaps it’s best to simply think of it as a long-lost hole in the mountain where Old Man Winter sleeps. At any rate, it’s a great place to escape the heat of summer. If you’re interested in checking it out, you can get more information from its Facebook page.

1.What does the history of Coudersport Ice Mine tell us?

A. It had shut down for about 35 years.

B. It had been closed down only once.

C. It used to be open only in the summer.

D. It first attracted attention a century ago.

2.What was the cave originally used for?

A. Producing heat.    B. Attracting tourists.

C. Keeping food fresh.    D. Storing newly harvested crops.

3.How does the cave work in the summer according to experts?

A. Its cracks trap a lot of water.

B. It produces more cracks in the rocks.

C. Its humidity increases and it gets hotter.

D. The cold air from its cracks freezes the water.

4.What does the author think of the mystery of Coudersport Ice Mine?

A. It should be kept secret forever.

B. It makes the cave more attractive.

C. It gets deeper if you are interested in it.

D. It is related to the tale of Old Man Winter.

 

1. B 2. C 3. D 4. B 【解析】 本文是一篇说明文,介绍了美国的Coudersport Ice Mine,这个洞穴里夏天的水会结冰是因为冷空气从石头缝隙里渗透过来,让水结冰了。文章还分析了其中的科学原理。 1.细节理解题。根据第二段第一句“The mine was a roadside attraction in Pennsylvania’s Appalachian Mountains for many years until it was suddenly closed down for some reason.”可知这个矿曾经被关闭一段时间。故B项正确。 2.细节理解题。根据第四段第一句“Originally discovered in 1894, the mine was first used to store meat and for ice harvesting.”1894年被发现的时候,这个矿最初被用来存储肉的,用来保鲜的。故C项正确。 3.细节理解题。根据第五段二三句“Experts say that cold winter air gets into the cave through cracks in the rocks, and due to the unusual interconnection of the cracks here, that cold air gets concentrated into the cave. The reason ice only forms in the summer is because of the seasonal humidity (湿度) increase in the surrounding atmosphere, along with an increase in groundwater, which becomes exposed to the freezing air.”可知这个洞穴里夏天的水会结冰是因为冷空气从石头缝隙里渗透过来,让水结冰了。故D项正确。 4.推理判断题。根据第三段可知在这个洞穴里夏天水会结冰,冬天里的冰融化。这一现象让这个洞穴十分出名,成为了一个旅游景点。在关闭25年以后2014年再次开放迎接游客。故B项正确。
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Share encouragement. It matters and we all need it.

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