第1题:
W: I’m impressed by the power of antibiotics. You know, inside sick patient, antibiotics wipe out infectious bacteria by the millions.
M: That’s true, but germs are always mutating. A few adapt to resist the drug, so they survive and spread. Such antibiotic-resistant bacteria infect 2 million Americans every year. They kill 23,000.
W: So in this arms race between medicine and evolution, evolution is winning. But could we turn evolution against bacteria?
M: Good idea. Some scientists have already found that when bacteria mutate to become resistant to one antibiotic, they often become more vulnerable to a different drug. It seems the combined use of antibiotics could hold the germs at bay.
Question 1:
题干为:男士对细菌感染的关切是什么?由男士提到:A few adapt to resist the drug, so they survive and spread. Such antibiotic-resistant bacteria infect 2 million Americans every year. They kill 23,000.(有些细菌变异对抗生素产生抗药性,能够生存并传播。每年这种抗药性细菌感染200万美国人,导致23000人死亡。)可知,男士关心的是细菌的抗药性问题。因此C选项The bacterial resistance.(细菌的抗药性。)正确。
第2题:
Question 2:
题干为:医学和进化之间的竞争指的是什么?由女士提到:In this arms race between medicine and evolution, evolution is winning.(在这场医学与进化之间的军备竞赛中,进化正在获胜。)可知,此处medicine是指医学中使用的抗生素,而evolution是指细菌进化出耐药性,所以race指的是抗生素和细菌之间的竞争。因此A选项The race between antibiotics and bacteria.(抗生素和细菌之间的竞争。)正确。
第3题:
Question 3:
题干为:男士建议用什么方法来应对抗药性细菌?由男士提到:Some scientists have already found that when bacteria mutate to become resistant to one antibiotic, they often become more vulnerable to a different drug. It seems the combined use of antibiotics could hold the germs at bay.(一些科学家已经发现,当细菌变异对一种抗生素产生抗药性时,它们通常会对另一种药物变得更脆弱。抗生素的联合使用似乎可以控制细菌。)可知,男士建议联合使用抗生素。因此C选项The combined use of antibiotics.(联合使用抗生素。)正确。