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  3. As computers and connectivity become cheaper, it makes sense to bake the chips into more and more things that are not, in themse

As computers and connectivity become cheaper, it makes sense to bake the chips into more and more things that are not, in themse

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问题     As computers and connectivity become cheaper, it makes sense to bake the chips into more and more things that are not, in themselves, computers—from coffee machines to factory robots—creating an "internet of things", or IoT. It is a slow【C1】________that has been gathering pace for years, as computers have found their way into cars, telephones and televisions. But the transformation is about to go into overdrive. One【C2】________is that by 2035 the world will have a trillion connected computers, built into everything from food packaging to bridges and clothes.
    Such a world will bring many【C3】________. Consumers will get【C4】________, and products that can do things non-computerised versions cannot. Amazon’s Ring smart doorbells, for instance, come【C5】________with motion sensors and video cameras. Working together, they can also form what is,【C6】________, a private CCTV network,【C7】________the firm to offer its customers a "digital neighbourhood-watch" scheme and pass any interesting video【C8】________to the police.
    Businesses will get efficiency,【C9】________information about the physical world that used to be ephemeral and uncertain becomes【C10】________and analysable.【C11】________lighting in buildings saves energy. Computerised machinery can【C12】________its own breakdowns and schedule preventive maintenance. Connected cows can have their eating habits and vital signs【C13】________in real time, which means they produce more milk and require less medicine when they fall ill. Such gains are【C14】________small but, compounded again and again across an economy, they are the raw material of growth—potentially a great deal of it.
    【C15】________the long term, though, the most【C16】________effects of the IoT will be in how the world works. One way to think of it is as the second phase of the internet. This will carry with it the business models that have come to【C17】________the first phase—all-conquering "platform" monopolies. Ever more companies will become tech companies; the internet will become【C18】________. As a result, a series of【C19】________arguments about ownership, data, surveillance, competition and security will【C20】________over from the virtual world into the real one.
【C13】
选项 A、pursued
B、cracked
C、explored
D、tracked
答案D
解析 本句意为“联网奶牛可以实时________自身的饮食习惯和生命体征，从而提高产奶量并减少生病时的用药”。本句中包含have sth. done的结构，意为“使(某事)被做”，文中的某事为their eating habits and vital signs，即“它们的饮食习惯和生命体征”，因前文讲述了“物联网”，因此tracked“(被)追踪，(被)跟踪”符合文意。其他三项，pursue“追求，继续探讨”、crack“破裂”和explore“探索，探测”均不符合文意，排除。故本题选D。
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