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专家解题:2012年职称英语考试理工类A级完形填空历年真题及答案解析3

来源: 发布时间:2014-08-29
 考题类型:完形填空  SolarPower without Solar Cells    Adramatic and surprising magnetic effect of light discovered by University of Michigan researchers could lead to solarpower without traditional semiconductor-based solar cells.   The researchers found a way to make an "optical(光的) ______(51)," said StephenRand, a professor in the departments of Electrical Engineering and ComputerScience, Physics and Applied Physics.   Light has electric and magnetic ______(52). Until now, scientiststhought the effects of the magnetic field were so weak that they could be______ (53). What Rand and his colleagues found is that at the right intensity,when light is traveling through a material that does not ______ (54)electricity, the light field can generate magnetic effects that are 100 milliontimes stronger than previously expected. Under these circumstances, themagnetic effects develop strength ______ (55) to a strong electric effect.   "This could lead to a new kind of solar cell without semiconductorsand without absorption to produce charge separation," Randsaid. "In solar cells, the ______ (56) goes into a material, gets absorbedand creates heat. Here, we expect to have a very low heat load. Instead of thelight being absorbed, energy is stored in the magnetic moment. Intensemagnetization can be induced by intense light and then it is ultimately capableof providing a capacitive power ______ (57)." What makes this possible isa previously undetected brand of "optical rectification," saysWilliam Fisher, a doctoral student in applied physics. In traditional opticalrectification, light's electric field causes a charge separation, or a pulling______ (58) of the positive and negative charges in a material. This sets up avoltage, similar to ______ (59) in a battery.   Rand and Fisher found that under the right circumstances and in righttypes of materials, the light's magnetic field can also create opticalrectification. The light must be shone through a ______ (60) that does notconduct electricity, such as glass. And it must be focused to an intensity of10 million watts per square centimeter. Sunlight isn't this ______ (61) on itsown, but new materials are being sought that would work at lower intensities,Fisher said.  "In our most recent paper, we show that incoherent light likesunlight is theoretically almost ______ (62) effective in producing chargeseparation as laser light is,” Fisher said.   This new ______(63) could make solar power cheaper, the researchers say.They predict that with improved materials they could achieve 10 percentefficiency in converting solar power to useable energy. That's equivalent totoday's commercial-grade solar cells.  "To manufacture modern solar cells, you have to do ______ (64) semiconductorprocessing," Fisher said. "All we would need are lenses to focus thelight and a fiber to guide it. Glass works for ______ (65). It's already madein bulk, and it doesn't require as much processing. Transparent ceramics mightbe even better."61. (    )  A. intense  B. bright C. faint D. visible 专家解题:第一步:首先看选项,本题的四个选项都是形容词,考查形容词的词义辨析。第二步:接下来看横线61,横线61的句子是:Sunlight isn't this ______ (61) on its own, but new materials arebeing sought that would work at lower intensities, Fisher said. 太阳光自己没有那么强, 但是正在寻找的新型材料能够在低电流状态下完成工作。第三步:再看选项,根据原文,这里要填入一个表示“强烈的”意思的词,A选项intense表示强烈的,符合句意,所以本题答案选择A选项。62. (    )  A. more  B. much C. such D. as 专家解题:第一步:首先看选项,本题选项为形容词以及其比较级,考查空格前后的逻辑比较关系。第二步:接下来看横线62,横线62的句子是:"In our most recent paper, we show that incoherent light likesunlight is theoretically almost ______ (62) effective in producing chargeseparation as laser light is,” Fisher said. Fisher说:"在我们最近的论文中, 我们表明, 像太阳这样的非相干光, 理论上能够像激光一样产生电荷分离。" 第三步:再看选项,根据原文,这里考查了一个常用平行结构as...as结构。横线后面有一个as laser light is,前面还需要填入一个as,表示和……一样。所以本题答案为D选项。63. (    )  A. technology  B. skill  C. miracle  D. prototype 专家解题:第一步:首先看选项,本题的四个选项都是名词,考查名词的词义辨析。第二步:接下来看横线63,横线63的句子是:This new ______(63) could make solar power cheaper, the researcherssay.研究者们断言, 这项新技术能使太阳能降低成本。第三步:再看选项,根据原文,这里需要填入一个表示“技术,科技”意思的词,A选项technology符合句意,所以本题答案为A。64. (    )  A. interactive  B. selective  C. intensive  D. extensive 专家解题:第一步:首先看选项,本题的四个选项都是形容词,考查形容词的词义辨析。第二步:接下来看横线64,横线64的句子是:"To manufacture modern solar cells, you have to do ______ (64)semiconductor processing," Fisher said. 目前要生产太阳能电池, 必须要进行大量的半导体的加工,而我们将来所需要的只是聚光的透镜和导入光线的纤维。第三步:再看选项,根据原文,这里要填入一个表示“大量的”意思的词,D选项extensive表示“广泛的,大量的”,所以本题答案为D选项。65. (    ) A. all  B. both  C. some D. others 专家解题:第一步:首先看选项,本题的四个选项都是形容词,考查形容词的词义辨析。第二步:接下来看横线65,横线65的句子是:"All we would need are lenses to focus the light and a fiber toguide it. Glass works for ______ (65). 玻璃能起到以上双重的作用。它已被大量生产, 而且不大需要太多的加工。第三步:再看选项,根据原文,这里说的是“双重作用”,那么填入both刚好适用,指代前面提到的lenses to focus thelight 和 a fiber toguide it二者。所以本题答案为B选项。  为帮助考生用最轻松的方式通过职称英语考试,考职称网官方推荐:博大考神职称英语家庭式培训班,它是在家里上的面授班,通过打造轻松愉快的学习过程,帮助考生掌握职称英语的考试技巧,提供贴心的班主任全程督导服务帮助考生坚持学完所有课程,只要学习达标,即可通过考试,不过退款!(职称英语零基础通关QQ交流群:347526614)2015年如何轻松通过职称英语考试?】  <<<<<职称英语vip保过,不过退款!<>  <<<<<职称英语零基础也不怕?这里保过!<>  <<<<<什么是职称英语?有什么通过秘诀吗?<>  <<<<<职称英语教父幺建华揭秘过关技巧<>   <<<<<在家也可以上职称英语面授班!<>    <<<<<不用背单词也能通过职称英语!<>
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