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An elephant, who accidentally fell into ...

    An elephant, who accidentally fell into a dry, 25-foot deep well in Northeast India, lived to see another day thanks to the quick-thinking rescuers' scientific knowledge. The chain of events unfolded early in the morning on Tuesday, January 28, 2020, when citizens of Amliya toli village, in the state of Jharkhand, awoke to the cries of the trapped animal and called the forest department for help.

When the rescuers arrived, they instantly realized that pulling out the huge animal, which seemed to be about 30 years old, was not a practical idea. Fortunately , the forest department officials had been paying attention in their science class and were well aware of the Archimedes' principle. The physics law of buoyancy(浮力),which explains how ships stay afloat, states that when a body is partially or fully immersed in a liquid, it experiences an apparent loss in weight that is equal to the weight of the liquid displaced by the part of the body in the liquid.

In this case, that meant filling the well with enough water to displace the elephant's weight. It took the three motorized pumps over three hours to add the hundreds of gallons needed to enable the heavy animal to float up to the surface. However, it was well worth the effort. A heart-warming video shows the villagers cheering as the animal, using the makeshift ramp (斜坡)dug by the rescue team, pulls itself out of the well and walks away to safety in the nearby forest.

1.Who first found the trapped elephant?

A.Some scientists. B.Forest rescuers.

C.Nearby villagers. D.The forest department officials.

2.How did the rescuers feel about pulling out the elephant?

A.Impossible. B.Challenging. C.Secure. D.Realistic.

3.What does the underlined word “immersed” in Paragraph 2 probably mean?

A.Broken. B.Covered. C.Stuck. D.Dampened.

4.What can be the best title for the text?

A.An Elephant Trapped in the Water

B.Villagers Used Water to Save Animals

C.Forest Rescuers Invented a New Technique

D.An Elephant Saved by the Archimedes' Principle

 

1.C 2.A 3.B 4.D 【解析】 本文是一篇记叙文。文章主要讲述了人们用阿基米德原理救助误坠深井的大象。 1. 细节理解题。根据第一段“when citizens of Amliya toli village, in the state of Jharkhand, awoke to the cries of the trapped animal and called the forest department for help.(当时Amliya toli村的居民被困动物的叫声惊醒,向森林部门求助。)”可知,是附近的村民最先发现了被困的大象。故选C。 2. 细节理解题。根据第二段“When the rescuers arrived, they instantly realized that pulling out the huge animal, which seemed to be about 30 years old, was not a practical idea.”可知,大象体型巨大,看上去大约30岁,因此将其拉出来不太现实,也就是说是不可能的。故选A。 3. 词义猜测题。根据本句句意,结合下文营救人员的具体做法和常识可知,物体在液体中会受到向上的浮力,因此该词的意思最可能是“被浸没”,与covered的意思最接近。故选B。 4. 主旨大意题。根据全文内容可知,本文主要介绍了人们救助误坠深井的大象的过程,而救助过程中利用的主要原理就是阿基米德原理。所以用An Elephant Saved by the Archimedes' Principle(阿基米德原理拯救了一头大象)作为文章的标题最为合适。故选D。
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