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1、大家论坛职称英语大家论坛职称英语 http:/ 大家论坛职称英语版块：大家论坛职称英语版块：http:/ 2006, many laboratories have been exploring other kinds of metamaterials that dont involve just visible light. In fact, scientists are finding that almost any kind of wave may respond to metamaterials.At the Polytechnic University of Valencia in S
2、pain5, Jose Sanchez-Dehesa is working with acoustics, or the science of sound. Just as an invisibility cloak shuffles waves of light, an “acoustic“ cloak would shuffle waves of sound in a way thats not found in nature. In an orchestra hall, for example, an acoustic cloak could redirect the sound wav
3、es - so someone sitting behind a column would hear the same concert as the rest of the audience, without distortion.Sanchez-Dehesa, an engineer, recently showed that its possible to build such an acoustic cloak, though he doubts well see one any time soon. “In principle, it is possible,“ he says, bu
4、t it might be impossible to make one, he adds.Other scientists are looking into ways to use larger metamaterials as shields around islands or oil rigs6 as protection from tsunamis. A tsunami is a giant, destructive wave. The metamaterial would redirect the tsunami around the rig or island, and the w
5、ave would resume its journey on the other side without causing any harm.词汇：词汇：cloak /klukn斗篷，披风metamaterial,metmtiriln超材料full-fledgedfulfleddadj.完全成熟的，完全合格的hyperlens /haiplenz/n超透镜acoustics / ku:stks /n声学tsunami / tsun:mi /n海震，海啸注释：注释：大家论坛职称英语大家论坛职称英语 http:/ 1. Invisibility cloaks：隐形衣。在哈利波特与死亡圣器(Har
6、ry Potter and the Deathly Hallows)一书中，哈利通过邓布利多的转交继承了他父亲的隐形衣。该书是英国女作家 JK罗琳创作的哈利 波特系列小说的第 7 部。2. had it not been for the development of metamaterials:如果超材料尚未得到开发的话。该句使用的是虚拟过去时的倒装结构。虚拟过去时表示与过去事实相反的假设；因为是倒装结构，所以将情态动词 had 提到主语之前。如使用正常语序，该句可写为： if it had not been for the development of metamaterials.3. “m
7、eta” means beyond, and metamaterials can do things beyond what we see in the natural world 一一 like shuffle light waves around an object, and then bring them back together: “meta”的词义是“超越” ，metamaterials（超材料）能做出我们在自然界看不到的事情，例如将光波移动到某个物体周围，然后将光波全部收回。4. Louisiana Tech University in Ruston，Louisiana：路易斯安
8、那理工大学，位于路易斯安那州拉斯顿市。该校为公立大学，1894 年建校，是美国最为重要的研究型大学之一。5. the Polytechnic University_of Valencia in Spain:瓦伦西亚理丁大学，位于西班牙东南部的瓦伦西亚市，该校建于 1968 年。6. oil rigs：石油钻塔练习：练习：1. What is true for metamaterials?A. They will always remain in science fiction.B. They are already a reality.C. They are nonexistent in na
9、ture.D. Scientists begin to use them to build invisible cloaks.2. A hyperlens is a more powerful tool than a traditional lensA. as it can allow scientists to see small things.B. as it can help photographers to capture images far away.C. even if it is made of ordinary materials.大家论坛职称英语大家论坛职称英语 http:
10、/ D. as it can help scientists to see even the wavelengths of visible light.3. Scientists at the Polytechnic University of Valencia try to inventA. an acoustic cloak that can shuffle waves of light.B. an invisible cloak that can shuffle waves of sound.C an acoustic cloak that can shuffle waves of so
11、und.D. a cloak that is made of materials found in nature.4. According to Sanchez-Dehesa,A. it is of great possibility to build an acoustic cloak soon.B. it is possible to build an acoustic cloak in theory but far from reality.C. it is totally impossible to build an acoustic cloak.D. it is theoretica
12、lly impractical to build an acoustic cloak.5. What ways are some scientists looking into to protect the island and oil rig from tsunamis?(Read the last paragraph.)A. Surround them with metamaterials as protective shields.B. Stopping the tsunami with metamaterials hours before it reaches them.C. Buil
13、ding them with larger metamaterials to keep away tsunamis.D. Using the equipment made of metamaterials to forecast arrival of a tsunami.答案与题解：答案与题解：1C A 不是正确答案，因为短文一开始的句子使用了虚拟语态，句子的意思是：如果超材料尚未得到开发的话。也就是说，科学家已经在研发超材料。短文的后面部分也进一步提到科学家正致力于超材料的开发。但是因为超材料尚未研发成功，科学家更没有开始使用超材料来制造隐身衣，所以 B 和 D 也不是正确选择。第二段的第一
14、句提供了答案。2D A、B 所述功效均是第三段中普通的 lens 能够达到的功效，所以不是正确选择。 Hyperlens 不是用普通材料制成，所以 C 也是错误选择。短文第四段对hyperlens 做了描述结合第四段内容可以得到 D 选项提供的结论。大家论坛职称英语大家论坛职称英语 http:/ 3C 短文的第七段提供了答案。该段的大意是：瓦伦西亚理工大学的研究者 Jose S6nchez-Dehesa 试图研发 acoustic cloak，其原理与 invisible cloak 相同，只是acoustic cloak 移动声波 (shuffle waves of sound)，而不是移动
15、光波（shuffle waves of light） 。所以，只有 C 是正确的选择。4B 短文的第八段提供了答案。工程师 S6nchez-Dehesa 认为，成功开发acoustic cloak 在理论上是可能的，但他对是否能成功表现出怀疑。5A 短文的最后一段告诉我们，科学家也在研究如何将超材料应用于抵御海啸的袭击。可以在岛屿周围使用超材料作为防护( shields)，因为超材料可以让海啸改变行走方向(redirect tsunami)。A 表达了这层意思，所以是答案。文章没有说，在海啸到达之前数小时用超材料将海啸档住，B 不是答案。文章没有建议用超材料建造海岛和石油钻塔，C 不是答案。D 的内容是用超材料制作海啸预警器，文章中没有提及，也不是答案。大家论坛大家论坛 20112011 年职称英语考试精华资料年职称英语考试精华资料大家论坛职称英语版块推荐：http:/ word 汇总下载（更新完毕）汇总下载（更新完毕） 2011年职称英语综合、理工、卫生类教材
