Questions are based on the following passage. All through the ages t-考呗网题库移动版

单选题Questions are based on the following passage.
All through the ages the bat has been a creature of great mystery. Bats have influenced the imagination of the Western World since the first Spaniards returned from the Americans. They told tales of hairy, winged creatures that flew from caves to feed on the blood of man and animals. The vampire bat, which became a well-known figure in the folk tales of many countries, exists only in the Americans.
The vampire bat is not like the common bat. Its teeth have grown sharper. In the days before Columbus, bat fed on wild animals, but with the introduction of farm animals into the New World by the Spaniards, they were offered a new kind of food. They attacked the cattle which sickened and died and the colonists didn´t know why. It was only in 1908 that farmers in Brazil discovered that the bite of the vampire bat could cause rabies and this was the disease that was killing their cattle.
For the first time it was recognized that the bite of a vampire bat could carry the virus of rabies. The cattle of eastern Mexico were especially troubled by this disease.
Many efforts were made by the farmers in Mexico to destroy the bats. They blew up their caves or covered the entrances to caves with nets. All these ways were too slow, too costly, or else didn´t work.
Since they could not remove the bats, the Mexican government and World Health Organization got together in 1952 to develop a cheap dependable supply of the vaccine against rabies at a factory in Mexico. A quarter of a million cattle have been vaccinated at a cost of fifty cents per animal to the owners. In one state alone, death among cattle has fallen from 56% to 1%. Control of the disease in animals seems to be in sight. This will reduce but not destroy the threat that bats may pass the
disease to human beings.
Vampire bats like human blood best. Whole villages in Guatemala have disappeared because of the frequency with which bats fed on sleeping children. A study made in Trinidad showed that in thirty houses checked in one village, twenty persons had been bitten by bats. Teachers reported that half of the children coming to school showed signs of having been bitten in the night.
A health research office, which has been collecting information since 1949 about the home and movements of bats, has started work on a book about bats. Various other health organizations also are making new studies. It is hoped that answers to this health problem will soon be found.
The vampire bat was well-known in many countries because_____

A．It fed on the blood of people
B．It frequently appeared in folk tales
C．It was an ugly creature
D．It was brought to Europe by the Spaniards

参考答案B

解析:参考译文
多少年来，蝙蝠一直是一种非常神秘的生物。自从西班牙人从美洲回来后，蝙蝠就影响了西方世界的想象。他们讲故事．说的是一种多毛的、长翅膀的生物从洞穴飞出，以人和动物的血为食。而吸血蝙蝠，这种在许多国家民间广为流传的家伙，只存在于美洲。
吸血蝙蝠与普通的蝙蝠不同。它的牙齿更锋利。在哥伦布航海之前，蝙蝠以野生动物为食，但随着西班牙人将家禽引进新世界。它们又得到一种新的食物。它们袭击了牛之后，牛暴病而亡，但殖民者都不知道原因。直到1908年．巴西的农民发现蝙蝠的咬痕会诱发狂犬病，这就是牛暴病而亡的原因。人们第一次意识到，蝙蝠的咬痕会携带狂犬病病毒。墨西哥东部的牛尤其受这种疾病困扰。
为了驱走蝙蝠，墨西哥人想了很多办法。他们在蝙蝠窝里充气，或者用网封锁它们的巢穴，但这些办法要么见效太慢，要么代价太大，或者根本行不通。
因为他们无法驱走蝙蝠，1952年，墨西哥政府和世界卫生组织联合起来在墨西哥设立了一家公司，专门提供廉价的狂犬病疫苗的有效供给。25万头牛接受了疫苗接种，代价就是每头牛50美分。这样，牛的死亡率从56％下降到了l％。动物疾病的控制效果立竿见影。这将会减少但不会摧毁蝙蝠可能会将这种疾病传染给人类的危险。
吸血蝙蝠最喜欢人血。危地马拉所有村庄消失的原因就是蝙蝠频繁地吃睡梦中的小孩，在特立尼达岛做出的一个研究表明，在一个小村庄被检查的30户人家，20个人被蝙蝠吸食过。老师说，有一半孩子来学校都会看到夜里被蝙蝠袭击的场景。
一个从1949年开始搜集关于蝙蝠巢穴和动向信息的健康研究所开始出关于蝙蝠的书籍。其他健康组织也纷纷进行新的研究。这一健康问题的答案有望很快被找到。
参考答案及解析
细节题。根据题干关键词，可定位至文章第一段最后一句，The vampire bat which became a well-known Figure in the folktales of many countries．exists only in the Americans(而吸血蝙蝠，这种在许多国家民间广为流传的家伙，只存在于美洲）。因此，正确答案是B。

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