OG9 阅读 Q44

Choice D is the best answer. The third paragraph of Passage 1 describes how, historically, the development of antibiotics requires "natural microbial substances," but this reliance has severe limitations as only about one percent of these microbial substances can be grown in a laboratory. The author goes on to explain how "the rest, in staggering numbers, have remained uncultured and of limited use to medical science, until now." The paragraph then describes the method Lewis's team used to grow teixobactin microorganisms "in their natural environment where they already have the conditions they need for growth." Therefore, the author of Passage 1 suggests that an advantage of the method Lewis's team used to grow microorganisms is that it allows researchers to make use of soil bacteria that they had previously been unable to exploit.
Choice A is incorrect because although the author of Passage 1 suggests that Lewis's team identified the requirements for soil bacteria to thrive, the team didn't replicate those features in artificial soil. Instead, the author suggests in the third and fourth paragraphs of Passage 1 that they used real soil samples. Choice B is incorrect because the author of Passage 1 doesn't suggest that the method Lewis's team used to grow microorganisms enabled soil bacteria to take in more nutrients than they typically consume in natural settings. Instead, it can be inferred from the fourth paragraph of the passage that the bacteria were provided with the same nutrients they consume in natural settings. Choice C is incorrect because the last paragraph of Passage 1 explains that it isn't the method Lewis's team used to grow bacteria but the antibiotic the team created that affects the cell walls of bacteria.