大学英语六级改革适用（阅读）模拟试卷395
仔细阅读
Imagine eating everything delicious you want—with none of the fat That would be great, wouldn\’t it?
New \\
1.We learn from the passage that olestra is a substance that_____.(B)
A. contains plenty of nutrients
B. makes foods fat-free while keeping them delicious
C. renders foods calorie-free while retaining their vitamins
D. makes foods easily digestible
解析：第2段第2句提到“生产含有Olestra化合物的食品的厂商认为使用Olestra能除掉某些食品中的脂肪”，在第6段，作者又指出“Olestra不为肠胃吸收，并能保持脂肪的美味而不对身体产生有害的影响”，因此B与文中所阐述的观点一致；A与文中提到Olestra会阻止人体吸收某些维生素和类胡萝卜素相悖；C、D同样与原文的意思相悖。
2.The result of the search for an easily digestible fat turned out to be _____.(C)
A. just as anticipated
B. commercially useless
C. quite unexpected
D. somewhat controversial
解析：第3段提到“20世纪60年代后期，化学家在寻找一种容易为婴儿吸收的脂肪时发现了Olestra，但却发现它根本不能为人体吸收”，因此，此结果是出乎意料的，C与此观点一致。
3.Olestra is different from ordinary fats in that _____.(B)
A. it facilitates the absorption of vitamins by the body
B. it passes through the intestines without being absorbed
C. it helps reduce the incidence of heart disease
D. it prevents excessive intake of vitamins
解析：第6段首句提到“Olestra因体积太大，含有6—8个脂肪酸分子，而不能被肠胃分解吸收”，因此B正确。A、D与文中所表达的意思相悖；只有类胡萝卜素才有此功能，因此C不对。
4.What is a possible negative effect of olestra according to some critics?(A)
A. It may increase the risk of cancer.
B. It may spoil the consumers’ appetite.
C. It may impair the digestive system.
D. It may affect the overall fat intake.
解析：第6段第5句提到“一些批评家认为Olestra阻止人体吸收维生素A、D、E、K和类胡萝卜素，而类胡萝卜素却是一种能减少癌症及心脏病发病率的化合物”，因此，A正确；B与文章所陈述之意相悖；C和D文中没有提及。
5.Why are nutritionists concerned about adding vitamins to olestra?(A)
A. People may be induced to eat more than is necessary.
B. It may trigger a new wave of fake food production.
C. It may lead to the over-consumption of vitamins.
D. The function of the intestines may be weakened.
解析：文章最后一段第2句提到“一些营养学家担心这样一来，人们也许会不加限制地享用由代脂肪制成的食品，从而摄取更多的热量”，A与文中所陈述的观点一致；其他三项在文中均没有进行陈述。
To live in the United States today is to gain an appreciation for Dahrendorf\’s assertion that social change exists everywhere. Technology, the application of knowledge for practical ends, is a major source of social change.
Yet we would do well to remind ourselves that technology is a human creation; it does not exist naturally. A spear or a robot is as much a cultural as a physical object. Until humans use a spear to hunt game or a robot to produce machine parts, neither is much more than a solid mass of matter. For a bird looking for an object on which to rest, a spear or robot serves the purpose equally well. The explosion of the Challenger space shuttle and the Russian nuclear accident at Chernobyl drive home the human quality of technology; they provide cases in which well-planned systems suddenly went haywire(变得混乱)and there was no ready hand to set them right. Since technology is a human creation, we are responsible for what is done with it. Pessimists worry that we will use our technology eventually to blow our world and ourselves to pieces. But they have been saying this for decades, and so far we have managed to survive and even flourish. Whether we will continue to do so in the years ahead remains uncertain. Clearly, the impact of technology on our lives
本文档预览：3500字符，共13296字符，源文件无水印，下载后包含无答案版和有答案版，查看完整word版点下载
