分析 本文是科普类阅读,讲述的是通过在老鼠身上实验发现通过注射年轻老鼠的血液可以改善年老的老鼠的一些状况,将有助于老年痴呆治疗的研究.
解答 29-32 ADCB
29.A 考查细节理解题.根据第一段提到Researchers in the US say they might have discovered how to fight against and even reverse some processes of ageing,at least in mice.Injecting the blood of young mice into the older ones improved their brainpower,a study found.美国一项研究说,他们可能发生了如何对抗和颠倒年龄的过程,在年老的老鼠身上注射年轻老鼠的血液,提高他们大脑的活力,故选A项.
30.D 考查细节理解题.根据第一段提到Scientists at Stanford University plan to carry out trials in people in the hope that new treatments for dementia(痴呆症) can be developed斯坦福大学的科学家计划进行这些实验目的是发现治疗痴呆症的治疗方案,故选D项.
31.C 考查细节理解题.根据倒数第二段提到A research center in UK said the treatment restored certain aspects of learning and memory in mice有助于学习记忆的方面再根据最后一段提到The research,published in Science,found the blood factors encouraged the growth of brain cells in old mice,促进年老的老鼠的脑细胞的生长,故没有提到C 项.
32.B 考查推理判断题.根据倒数第二段提到The research,while very interesting,did not test the type of brain damage that was seen in dementia,which is not a necessary consequence of ageing这个研究虽然很有趣,但没有检出大脑在痴呆坏掉的细胞,这不是变老的必然结果,可见作者持有客观的态度,故选B项.
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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