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are associated with genetic problems.D.The underlined word “scenario” in paragraph 4 means fatal harm. 参考答案： B A项中的 “dysfunctional genes”并不一定会导致基因病的发生;C项中的 “12” 应为 “up to 30”; D项中的 “scenario” 意为 “剧情概要”。B项可见第三段。----------------------------------------5From the last paragraph, we can see the author holds a(n) view. A.Optimistic.B.Pessimistic.C.Skeptical.D.Neutral. 参考答案： A 作者在文章最后一段主要讲了我们对基因病的逐渐了解, 而且开始采取措施控制它。由此可以看出作者是抱乐观(optimistic)态度。----------------------------------------1With what topic is the passage primarily concerned? A.The rapid development of agricultural biotechnology.B.The relationship between economy and biotechnology.C.The possibility of threat genetically engineering food may bring to us.D.The controversy between food manufacturers and environmental activists. 参考答案： C 本文主要阐述转基因食品问题，指出生物科技的发展主要是受经济利益驱使的，但是也许它会给人类带来威胁。 They demanded that the FDA undertake mandatory premarket testing of all genetically engineered foods, label them, and require premarket public notification by all manufacturers of the presence of such goods in stores, so that the foods could be traced if illnesses or other problems arose. 他们要求美国食品药物管理局在转基因食品进入市场前做测试，贴标签，让制造商声明以保证食品不会成为病原。整篇文章的着重点放在转基因食品潜在威胁的可能性上, 首先是对这种可能性的争论, 然后由食品制造商的冒险投资, 进一步讨论其可能性。----------------------------------------2What is the possible meaning of the underlined word “chefs” in paragraph 2? A.Cooks.B.Managers.C.Customers.D.Supervisors. 参考答案： A 第二段的最后一句 “I will not sacrifice the entire history of culinary art to revitalize the biotechnology industry.” 意为 “我不会为振兴生物科技行业而牺牲整个烹饪艺术的历史。” 由此可以看出che
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