分析 本文解释了蚊子叮人的依据,文章中通过实验证明了蚊子依据二氧化碳来追踪叮咬目标.
解答 32.A 细节理解题.根据第三段最后一句"This gas is the main way for mosquitoes to know that a warm-blooded creature is nearby"可知,蚊子通过闻气体的味道发现周围的温血动物,故选A.
33.C细节理解题.根据第六段第二句中的"the mosquitoes showed no interest in the objects at all"可知,实验开始时,蚊子对物体没有显出任何兴趣,故选C.
34.D 推理判断题.根据第六段最后一句中的"But the moment they get a hit of CO2,they change their behavior quite obviously and now would become attracted to these little visual blobs"可知蚊子通过CO2来寻找目标,所以可以推理出,要避免蚊子的叮咬,可以用含有CO2的物体来引开它们,故选D.
35.C 主旨大意题.文章通过试验介绍了蚊子通过CO2的味道来寻找目标,所以选C.
点评 阅读理解题测试考生在阅读基础上的逻辑推理能力,要求考生根据文章所述事件的逻辑关系,对未说明的趋势或结局作出合理的推断;或根据作者所阐述的观点理论,对文章未涉及的现象、事例给以解释.考生首先要仔细阅读短文,完整了解信息,准确把握作者观点.
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