分析 本文是一篇说明文,讲述了儿童如果被暴力对待,基因就会加速老化,身体状况也会开始恶化.
解答 59-62 CBCA
59.C 考查细节理解.根据"violence not only leaves long-term scars on children's bodies,but also changes their DNA,causing changes that are equal to seven to ten years of premature aging"可知,暴力会导致儿童早熟.故选C.
60.B 考查细节理解.根据"Telomeres(端粒) are special DNA sequences (基因序列)which prevent the DNA in chromosomes from separating"可知,端粒是特殊的DNA序列,可防止染色体中的DNA分离.故选B.
61.C 考查细节理解.根据"Telomeres shortened faster in kids exposed to two or more types of violence"可知,接受暴力对待会使孩子的染色体端粒缩短速度更快.故选C.
62.A 考查主旨大意.根据文章内容可知,本文要讲述的就是儿童被暴力地对待,会导致基因加速老化.故选A.
点评 阅读理解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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