[A] For years, scientists endeavor of imitating opals unique characteristics has reached nil. [A] 多年来,科学家们试图模仿蛋白石特性的努力都没有取得任何成就。
[B] Opals could be brilliant mainly because they have some kind of iridescent properties. [B] 蛋白石闪光的主要是因为有一种闪光的成分。
[C] Opals could be brilliant because they have tiny crystals which could scatter light. [C] 蛋白石闪光是因为有小的水晶颗粒可以反射光。
[D] Opals could be used to make a sparkling substitute for paint. [D] 蛋白石可以用于制造一种替代涂料的闪光替代品。
[答案] A
[难度系数] ☆☆☆
[分析] 细节题。根据第三段,For many years researchers have been trying to develop a synthetic material with the same light-scattering properties as an opal, by etching patterns into various materials. That approach has failed,因此A选项是正确的,其中nil的意思是零。B选项对应于文章第一段,也提到了宝石闪光成分存在使得它可以闪光。C选项,第二段提到了这一点。D选项,第一段提到是发明的塑料可以用于制作油漆的闪光替代品,而不是蛋白石本身。因此,答案为A选项。
2.The opalescent material that Dr Baumberg and his team have developed model itself on _____ 2. Baumberg博士和他的小组自己研制出的乳白色物质是以____为原型的。
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