分析 本文主要介紹了基因工程技術.基因工程可以將所需的生物轉化為不同物種的生物,它為農業做出了巨大的貢獻.而轉基因食品是不必要的,因為它不會幫助解決世界上的饑餓問題,并且還可能存在一些隱患.
解答 67.C推理判斷題.根據第一段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.可知傳統育種不同于基因育種,傳統育種發生在同一物種之間.故選C.
68.A細節推理題.根據第四段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記錄,如果過敏原發展,將很難找到他們的起源.由此推知,"The lack of labeling"暗示了關于基因的來源對于客戶來說是不可獲取的.故選A.
69.A細節理解題.根據第五段GE food is unnecessary,and fails to address the root of hunger.可知轉基因食品是不必要的,因為它不會幫助解決世界上的饑餓問題.故選A.
70.B細節理解題.根據最后一段可知作者不贊同轉基因技術.故選B.
點評 本文考察學生的理解推斷能力以及細心程度,只要抓住文章的關鍵詞,采用尋讀的方法查找細節,就能找到正確答案.
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