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  3. According to Ian Pearson, a futurologist, these are among the developments scheduled for the first few decades of the new millen

According to Ian Pearson, a futurologist, these are among the developments scheduled for the first few decades of the new millen

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问题     According to Ian Pearson, a futurologist, these are among the developments scheduled for the first few decades of the new millennium, when supercomputers will dramatically accelerate progress in all areas of life.
    Pearson has【C1】______together the work of hundreds of researchers around the world to produce a【C2】______millennium technology calendar that gives the latest dates when we can expect hundreds of key【C3】______and discoveries to take place. Some of the biggest developments will be in medicine, including an【C4】______life expectancy and dozens of artificial organs【C5】______into use between now and 2040.
    Pearson also【C6】______a breakthrough in computer-human links. "By linking【C7】______to our nervous system, computers could pick up【C8】______we feel and, hopefully, simulate【C9】______too so that we can start to【C10】______full sensory environments, rather like the holidays in Total Recall or the Star Trek holodeck," he says.
    But that, Pearson points【C11】______, is only the start of man-machine【C12】______: "It will be the beginning of the long process of integration that will【C13】______lead to a fully electronic human before the end of the next century."【C14】______his research, Pearson is able to put dates to most of the breakthroughs that can be predicted. However, there are still no【C15】______for when faster-than-light travel will be【C16】______, or when human cloning will be perfected, or when time travel will be possible.
    But he does【C17】______social problems as a result of technological advances. A boom in neighborhood surveillance cameras will, for example,【C18】______problems in 2010, while the arrival of synthetic【C19】______robots will mean people may not be able to【C20】______between their human friends and the droids. And home appliances will also become so smart that controlling and operating them will result in the breakout of a new psychological disorder-kitchen rage.
【C4】
选项 A、expanded
B、extended
C、enlarged
D、enriched
答案B
解析 词义辨析题 expand“(体积、面积上的)扩张”，侧重指“上下、左右、前后的面或体的伸展”，如：Iron expands when it is heated．铁加热时会膨胀；extend“延长(线性的)”，可以表示时间和空间的“延长”，还可以用于比喻意义上的“延长”，或范围的“扩展”。如：the extended meaning of a word(词汇的引申意义)，to extend(or lengthen)a road(延长道路)，to extend(or lengthen)one’s stay(延长某人的逗留)；enlarge表示抽象意义上的“扩大”，如：enlarge my knowledge扩大知识面；(照片等)放大；enrich“使某人(某事物)富裕或更富裕”。此处指寿命的延长，故选B。
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