分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了新的研究发现维生素B的效果是它可以减少PM2.5对人体的影响,但还要进一步证明.
解答 29.C.细节理解题.根据第二段They found that Vitamin B supplement could effectively reduce the impact of the tiny particles (颗粒)on the human body,although they stressed that the research was in its early stages可知新发现1款维生素B的效果是它可以减少PM2.5对人体的影响;故选C.
30.A.推理判断题.根据第二段92% of the world's people are living in places where the PM2.5 level goes beyond the recommended level.So it's urgent to find a solution to the problem可知要进一步研究维生素B的效果;故选A.
31.B.细节理解题.根据文章The experiment was then repeated,with each volunteer taking a Vitamin B supplement daily,made up of 2.5mg of folic acid,50mg of Vitamin B6,and l mg of Vitamin B12可知作者通过实验借鉴Vitamin B的新结论;故选B.
32.D.推理判断题.根据最后一段The results emphasized how prevention at an individual level could be used to fight against the damage of PM2.5,the researchers said可知文章最可能在关于健康的网站上看到;故选D.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
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