分析 本文主要介绍了基因工程技术.基因工程可以将所需的生物转化为不同物种的生物,它为农业做出了巨大的贡献.而转基因食品是不必要的,因为它不会帮助解决世界上的饥饿问题,并且还可能存在一些隐患.
解答 67.C推理判断题.根据第一段Unlike traditional breeding (繁殖),where a desired quality would be bred within the same species,genetic engineering can insert desired ones into organisms of different species.可知传统育种不同于基因育种,传统育种发生在同一物种之间.故选C.
68.A细节推理题.根据第四段due to the lack of labeling if allergies develop,it will be extremely difficult to find the origin of them.可知由于缺乏信息的记录,如果过敏原发展,将很难找到他们的起源.由此推知,"The lack of labeling"暗示了关于基因的来源对于客户来说是不可获取的.故选A.
69.A细节理解题.根据第五段GE food is unnecessary,and fails to address the root of hunger.可知转基因食品是不必要的,因为它不会帮助解决世界上的饥饿问题.故选A.
70.B细节理解题.根据最后一段可知作者不赞同转基因技术.故选B.
点评 本文考察学生的理解推断能力以及细心程度,只要抓住文章的关键词,采用寻读的方法查找细节,就能找到正确答案.
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