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  3. While western governments worry over the threat of Ebola, a more pervasive but far less harmful【C1】______is spreading through th

While western governments worry over the threat of Ebola, a more pervasive but far less harmful【C1】______is spreading through th

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问题    While western governments worry over the threat of Ebola, a more pervasive but far less harmful【C1】______is spreading through their populations like a winter sniffle: mobile personal technology.
   The similarity between disease organisms and personal devices is【C2】______. Viruses and other parasites control larger organisms, 【C3】______ resources in order to multiply and spread. Smartphones and other gadgets do the same thing, 【C4】______ever-increasing amounts of human attention and electricity supplied 【C5】______ wire umbilici.
   It is tempting to【C6】______a "strategy" to both phages and phablets, neither of which is sentient.【C7】______, the process is evolutionary, consisting of many random evolutions, 【C8】______experimented with by many product designers. This makes it all the more powerful.
   Tech【C9】______occurs through actively-learnt responses, or "operant conditioning" as animal be haviourists call it. The scientific parallel here also involves a rodent, typically a rat, which occupies a【C10】______cage called a Skinner Box. The animal is【C11】______with a food pellet for solving puzzles and punished with an electric shock when it fails.
   "Are we getting a positive boost of hormones when we【C12】______look at our phone, seeking rewards?" asks David Shuker, an animal behaviourist at St Andrews university, sounding a little like a man withholding serious scientific endorsement【C13】______an idea that a journalist had in the shower. Research is needed, he says. Tech tycoons would meanwhile 【C14】______ that the popularity of mobile devices is attributed to the brilliance of their designs. This is precisely what people whose thought processes have been【C15】______by an invasive pseudo-organism would believe.
   【C16】______, mobile technology causes symptoms less severe than physiological diseases. There are even benefits to【C17】______sufferers for shortened attention spans and the caffeine overload triggered by visits to Starbucks for the free Wi-Fi. Most importantly, you can【C18】______the Financial Times in places as remote as Alaska or Sidcup. In this【C19】______, a mobile device is closer to a symbiotic organism than a parasite. This would make it【C20】______to an intestinal bacterium that helps a person to stay alive, rather than a virus that may kill you.
【C4】
选项 A、taking over
B、feeding on
C、catching up
D、allowing for
答案B
解析 此处意为“智能手机和其他小玩意也做着同样的事，它们靠______人类日益增长 的注意力……”，feed on意为“以……为食，以……为能源”，在此处比喻为“靠吸引人类 的注意力而获得成功”，故B．feeding on为正确答案。take over“接受，接管”，catch up“赶 上，追上”，allow for“考虑到，体谅”，均不符合题意，故排除。
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