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问题 单项选择题

英特尔表示，其新一代处理器已经不再使用铅作为原料，预计到2008年将停止使用卤素。通过这些举措，英特尔处理器对于环境的危害将大大降低。英特尔新型处理器的一个最大特点是采用了铪，可以有效地解决电泄漏的问题，使处理器功耗效率提升了30%。随着晶体管的体积不断缩小，电泄漏也更加严重，导致处理器发热和功耗过大的问题日益突出。从某种程度上讲，电泄漏已经成为阻碍处理器性能进一步提升的瓶颈。对这段话的主要意思概括最恰当的一项是（ ）。

A．英特尔公司已经成功开发出了解决电泄露问题的新技术

B．电泄露问题是处理器生产过程中亟待解决的瓶颈问题

C．随着晶体管体积的不断缩小，处理器的发热和功耗问题将越来越严重

D．英特尔公司的新一代处理器应用了新材料，不仅更加环保，而且提升了功率

答案

参考答案：B

解析： 从问题来看，这是一道要求考生对文字主要内容进行概括的题。第一、二句主要说的是英特尔的旧技术已经停用。通过这两句话引出全文所要说的问题，即英特尔使用新的技术，以及这种技术的优势。最后一句话对新技术的利弊进行概括性总结，即“从某种程度上讲，电泄漏已经成为阻碍处理器性能进一步提升的瓶颈”，因此这段文字是构成“引入—分析—概述”的结构，主要意思就是最后一句话，B项是对最后一句话的复述。

填空题

Human and the Environment


One of the most pressing challenges that the United States and indeed the world will face in the next few decades is how to alleviate (减轻点)the growing stress that human activities are placing on the environment. The consequences are just too great to ignore. Wildlife habitats (栖息地)are being degraded(使退化) or disappearing altogether as new developments take up more land. (46) As many as 30 percent of the world’s fish stocks are over-exploited. And the list goes on.
(47) Advances in computing power and molecular biology(分子生物学) are among the trem endows increases in scientific capability that are helping researchers gain a better understanding of these problems. Recent developments in science and technology could provide the basis for some major, and timely(及时的) actions that would improve our understanding of how human activities affect the environment.
One priority for research is improving hydrological(水文学的)forecasting. (48) Already, widespread water shortages have occurred in parts of China, India, North Africa, and the Arabian Peninsul
  • a. The need for water also is taking its toll (造成损失)on freshwater(淡水)ecosystems (生态体系)in the United States. Only 2 percent of the nation’s streams are considered in good condition, and close to 40 percent of native fish species are rare or extinct. Using a variety of new remote sensing tools scientists can learn more about how precipitation(降水量)affects water levels, how surface water is generated and transported, and how changes in the landscape affect water supplies.
    To prevent outbreaks of infectious(传染性的)diseases in plants, animals, and humans, more study is needed on how pathogens (病原体), parasites(寄生生物), and disease-carrying species-as well as humans and other species they infect-are affected by changes in the environment. (49) Researchers can take advantage of new technologies in genetics and computing to better monitor and predict the effects that environmental changes might have on disease outbreaks.Humans have made changes to earth’s surface, such as tropical deforestation(砍伐森林), reduction of surface and ground water, and massive development, so dramatic that they approach the levels of transformation that occurred during glacial periods(冰川期). (50) Recent advances in data collection and analysis should be used to record and better understand the causes and consequences of changes in land cover and use.A. It has been estimated that the world’s water use could triple in the next two decades.B. Plant and animal species are becoming extinct at a greater rate now than at any time in earth’s history.C. The overuse of antibiotics (抗生素) both in humans and in farm animals has contributed to the growth of antibiotic resistant micro-organisms (微生物).D. Yet, there is reason to have hope for the future.E. Until recently, very little information was documented about changes and consequences of land usage.F. Such changes cause changes in local and regional climate, and will determine the future of agricultur
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单项选择题

在收单机构开设了看似合法经营的商户账户，受理银行卡。当收到大笔清算款项后商户立即关门，故意破产，负责人也马上销声匿迹，使收单机构承担此后的退单损失。不法商户的上述行为，最可能导致的风险是（）

A、恶意倒闭风险

B、商户套现风险

C、商户洗单风险

D、商户侧录风险
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