分析 本文是一篇科教类阅读,属于说明文,新的研究发现,即使你放弃吸烟,它对你的基因造成的伤害将会持续更长时间.本文以此展开,主要介绍了这项发现有助于找到由吸烟引起的遗传损伤的治疗方法.
解答 59.B.段落大意题.根据New research has found that even if you give up smoking,the damage it has done to your genes(基因)will stay there for a much longer time.可知,新的研究发现,即使你放弃吸烟,它对你的基因造成的伤害将会持续更长时间.故本段是为了介绍主题.故选B.
60.C.细节理解题.根据Some people may have had the changes when they were born,but most people get them in their day-to-day lives while doing things like smoking.可知,人们不好的生活习惯会造成基因的改变,故选C.
61.B.词义猜测题.根据It's almost like leaving a footprint on wet cement(水泥)一it will always be there,even when you've walked away and when the cement becomes dry.可知,it代指的是footprint.故选B.
62.D.细节理解题.根据Although the study results may make people unhappy,there is a bright side:the findings could help scientists invent medicine to treat genetic damage caused by smoking or find ways to tell which people have heart disease or cancer ricks.可知,这个发现有助于找到由吸烟引起的遗传损伤的治疗方法.
点评 本文是一篇科教类阅读,题目涉及多道主旨大意题,细节理解题,推理判断题.做题时学生应仔细阅读原文,把握文章主要内容,联系文章上下文内容并结合所给选项含义,从中选出正确答案,一定要做到有理有据,切忌胡乱猜测.
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