题目

Every year scientists open more doors that lead to the secrets of new beneficent drugs. There is bacitracin, which was discovered by two scientists at Columbia University’s College of Physicians and Surgeons. There two people, Dr. Frank Meleney and Miss Balbina Johnson, knowing that the human body had some kind of action in itself with which it fights infections, began to search for the chemical that does this. In the hospital they examined badly infected wounds of people who had been hurt in accidents and made tests of the blood and the infected tissue. Finally, in the wound of a girl who had broken a leg bone, they found the useful germs which seemed to be fighting the poisonous infection. How did the scientists find the useful germs?A. They find it in their blood.B. They find it in people's infected tissue.C. They find it in fresh wounds.

Every year scientists open more doors that lead to the secrets of new beneficent drugs. There is bacitracin, which was discovered by two scientists at Columbia University’s College of Physicians and Surgeons. There two people, Dr. Frank Meleney and Miss Balbina Johnson, knowing that the human body had some kind of action in itself with which it fights infections, began to search for the chemical that does this. In the hospital they examined badly infected wounds of people who had been hurt in accidents and made tests of the blood and the infected tissue. Finally, in the wound of a girl who had broken a leg bone, they found the useful germs which seemed to be fighting the poisonous infection. How did the scientists find the useful germs?

A. They find it in their blood.

B. They find it in people's infected tissue.

C. They find it in fresh wounds.

题目解答

答案

B. They find it in people's infected tissue.

解析

本题考查对文章细节信息的理解。解题思路是仔细阅读文章，找到与科学家发现有用细菌相关的描述，然后将各选项与原文进行对比分析。

  • 文章中提到 “In the hospital they examined badly infected wounds of people who had been hurt in accidents and made tests of the blood and the infected tissue. Finally, in the wound of a girl who had broken a leg bone, they found the useful germs which seemed to be fighting the poisonous infection.”，这表明科学家在医院对事故受伤者的严重感染伤口进行检查，对血液和感染组织进行测试，最终在一个女孩骨折的伤口里发现了有用的细菌。
  • 选项A：文中虽提到对血液进行了测试，但并没有说在血液中发现了有用的细菌，所以A选项错误。
  • 选项B：因为伤口属于感染组织的一部分，科学家在伤口中发现了有用的细菌，也就意味着是在人们的感染组织中发现的，所以B选项正确。
  • 选项C：文中明确说的是在严重感染的伤口中发现的细菌，而不是新鲜伤口，所以C选项错误。