说明:第31题至第40题,每题一个空格,请依文意在文章后所提供的 (A) 到 (J) 选项中分别选出最适当者,并将其英文字母代号画记在答案卡之「选择题答案区」。各题答对得1分;未作答、答错、或画记多于一个选项者,该题以零分计算。

   Popcorn is one of the snacks that rarely fail to make watching a movie more fun. However, the modern way of preparing this   31   snack may carry an unhappy secret. Research by the U.S. government now reports that microwave popcorn may contain substances that can cause health   32  .

Researchers found that commercial popcorn companies often coat their microwave popcorn bags with a ____33____ called perfluorooctanoic acid (PFOA) which has been found to cause both cancer and lung disease in laboratory animals. Making matters worse, the artificial butter substitute that generally   34   with microwavable popcorn contains a common food-flavoring substance. This substance, according to health scientists, is   35   for some serious lung diseases.

For an easy and   36   alternative, nutritionists suggest that we pop our own popcorn. All that is ____37____ is a large, high pot, about four tablespoons of vegetable oil and a small handful of organic popcorn kernels. When the kernels start   38  , shake the pot to let the steam escape and to let the unpopped kernels fall to the bottom. As soon as the popping slows down,   39   the pot from the stove. Then pour the popcorn into a bowl and season with a small   40   of real butter or olive oil and natural salt. And the healthy and fun snack is ready to serve.

爆米花是很能让看电影增添乐趣的点心。然而,现在这项31.广受欢迎的点心,其制作方法却可能隐藏着一个令人不快的秘密。美国政府的研究即报导微波爆米花可能含有会引起健康32.问题的物质。
研究人员发现爆米花公司通常在微波爆米花的袋子上涂一种称做全氟辛酸铵的33.化学物,它被发现会在实验动物身上引发癌症和肺病。更糟的是,34.伴随着微波爆米花的人造奶油替代品含有常见的食用香料。据健康科学家指出,这种香料是35.造成某些严重肺病的原因
科学家建议我们应以自制爆米花作为另一种简单而且36.健康的替代品。我们所37.需要的只有一个又大又高的锅子、约莫四匙的植物油以及少许的有机玉米仁。当玉米仁开始38.爆开时,将锅子稍微摇晃让蒸气溢出,也让未爆开的玉米仁掉到下层。当爆开的速度减缓时,将锅子从火炉上39.移开。接着,将爆米花倒入碗里,并以少40.的奶油或橄榄油与天然盐调味。最后,一道健康又有趣的点心就准备上桌了。

(A) chemical      (B) amount     (C) popping     (D) popular     (E) comes       (F) healthy       (G) needed     (H) responsible    (I) remove     (J) problems

(A)化学物质 n. [C]   (B)量 n. [C]     (C)爆开 vi.     (D)受欢迎的 adj.   (E)出现 vi. 
(F)健康的 adj.     (G)被需要 vt.    (H)造成…的原因 adj. (I)移开 vt.      (J)问题 n. [C]

[解析]
31. this _____ snack,空格中应填入形容词:popular、responsible或healthy,依句意选(D) popular。
32. cause health _______,应填入名词:chemical、amount或problems,引起健康问题,故选(J) problems。
33. a _______ called perfluorooctanoic acid,冠词a之后应填入名词:chemical或amount,由后面的名词全氟辛酸铵可知指的是化学物质,故选(A) chemical。
34. that generally ______with microwavable popcorn,that在关系子句里当主词用,故空格应填入动词comes或needed,伴随微波爆米花而来,故选(E) comes。
35. is _______ for,be动词后可填入形容词:responsible或healthy,造成肺病的原因,故选(H) responsible。
36. an easy and _______ alternative,应填入形容词healthy,作为简单又健康的替代品,故选(F) healthy。
37. All that is ______,be动词后可填入形容词、现在分词或过去分词,剩下未选又符合条件的选项只有needed,故选(G) needed。
38. When the kernels start ______,空格中可填入名词(包含动名词)或不定词,依句意可知,由剩下的选项popping与amount中应选(C) popping。
39. _____ the pot from the stove,空格后有名词,故可知本格应选动词:remove,将锅子从火炉上移开,故选(I) remove。
40. a small _____ of,应填入名词,故选(B) amount。

25. (A) appealed to     (B) presented with    (C) resulted in        (D) brought about

   (A)对…有吸引力  (B)以…呈现        (C)造成             (D)导致

   Which is more valuable? Water or diamonds? Water is more useful to mankind than diamonds, and yet ____26____ are costlier. Why? Called the diamond-water paradox, this is a classic problem posed to students of economics.

   The answer has to do with supply and demand. Being a rare natural resource, diamonds are   27   in supply. However, their demand is high because many people buy them to tell the world that they have money, ____28____ as conspicuous consumption in economics. In other words, the scarcity of goods is   29   causes humans to attribute value. If we   30   surrounded by an unending abundance of diamonds, we probably wouldn’t value them very much. Hence, diamonds carry a higher monetary value than water, even though we find more use for water.

哪一样比较有价值?水或是钻石?对人类而言,水比钻石更实用,但是26.后者却较昂贵。为什么?这被称做水与钻石疑论,是提给经济学学生的经典问题。
答案与供需有关。身为稀有的自然资源,钻石的存量是27.有限的。然而,它们的需求很高,因为许多人购买它们来向世界宣示他们很富有,在经济学上28.被称为炫耀性消费。换句话说,商品的稀有性29.正是让人们赋予价值的原因。如果我们身边30.无限量供应的钻石围绕,我们大概就不会这么珍惜它们了。因此,钻石有比水更高的货币价值,即使我们认为水有更多的用途。
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