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NEW TPO 2 Why does the author mention "climate change"?

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Vibrio Bacteria
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Vibrio bacteria are a type of bacteria commonly found in coastal waters. These bacteria are known for their ability to cause a variety of infections in humans, ranging from mild gastroenteritis to severe wound infections. Vibrio species thrive in warm, salty environments, making them particularly prevalent in tropical and subtropical regions. There are more than twenty different species of Vibrio bacteria, with Vibrio cholerae, Vibrio parahaemolyticus, and Vibrio vulnificus being the most well-known.

One of the most concerning aspects of Vibrio bacteria is their increasing resistance to antibiotics. Over time, some strains of Vibrio have developed mechanisms to evade the effects of commonly used antibiotics. Researchers are working to understand the genetic mutations that contribute to this resistance, which could lead to the development of more effective treatments.

选项a Additionally, climate change is amplifying the risks associated with Vibrio bacteria. 选项b Rising sea temperatures and changing salinity levels create ideal conditions for these bacteria to multiply. 选项c As a result, there has been a noticeable increase in Vibrio-related infections in regions previously unaffected. 选项d This trend underscores the importance of monitoring environmental changes and implementing public-health strategies to mitigate the impact of these bacteria.

4.Why does the author mention "climate change"?

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正确答案:C
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题干翻译:作者为什么提到 “气候变化”? 定位:“climate change” 出现在原文第三段第一句 “Additionally, climate change is amplifying the risks associated with Vibrio bacteria.”,后续内容均围绕气候变化与弧菌的关联展开。 选项分析: A 选项(To suggest that it has no effect on Vibrio bacteria,为了表明它对弧菌没有影响):与原文 “气候变化正在放大与弧菌相关的风险” 直接矛盾,排除。 B 选项(To explain why Vibrio bacteria are not found in cold waters,为了解释为什么在寒冷水域找不到弧菌):原文仅说明弧菌适合在温暖环境繁殖,未提及 “寒冷水域完全没有弧菌”,且这并非提及气候变化的目的,排除。 C 选项(To help explain why certain types of infections have been spreading to formerly unaffected areas,为了帮助解释为什么某些类型的感染已经扩散到以前未受影响的地区):与前文梳理的 “气候变化→弧菌繁殖→感染扩散” 的逻辑链完全一致,准确匹配作者提及气候变化的意图,是正确答案。 D 选项(To indicate another reason that antibiotics contribute to bacterial resistance,为了指出抗生素导致细菌抗药性的另一个原因):抗生素抗药性在第二段单独讨论,与第三段的气候变化内容无关,两者无逻辑关联,排除。

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