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  3. State and local authorities from New Hampshire to San Francisco have begun banning the use of facial-recognition technology. The

State and local authorities from New Hampshire to San Francisco have begun banning the use of facial-recognition technology. The

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问题     State and local authorities from New Hampshire to San Francisco have begun banning the use of facial-recognition technology. Their suspicion is well【C1】________: these algorithms make lots of mistakes, particularly when it【C2】________identifying women and people of color. Even if the tech gets more accurate, facial recognition will unleash an invasion of privacy that could make anonymity impossible.【C3】________, bans on its use by local governments have done little to curb adoption by businesses from startups to large corporations.
    Automated face-recognition programs do have advantages, 【C4】________their ability to turn a person’s unique appearance into a biometric ID that can let phone users【C5】________ their devices with a glance. To train such systems, researchers【C6】________a variety of photographs to a machine-learning algorithm. The more data they【C7】________, the more【C8】________these programs become.
    Too often,【C9】________, the algorithms are deployed prematurely. In London, for example,  police have begun using artificial-intelligence systems to scan surveillance footage in an attempt to【C10】________wanted criminals as they walk by—despite an independent review that found this system labeled suspects【C11】________only 19 percent of the time. An inaccurate system could【C12】________【C13】________innocent citizens of being miscreants, earmarking law-abiding people for tracking, harassment or arrest. This becomes a civil-rights issue because the algorithms are more likely to misidentify people of color.
    Some companies are attempting to improve their【C14】________by feeding them more nonwhite and nonmale faces—but they are not always doing it in【C15】________ways. Google contractors in Atlanta, for example, have been accused of exploiting homeless black people in the company’s quest for faces, buying their images for a few dollars. Such stories suggest that some companies are tackling this problem as an afterthought【C16】________addressing it responsibly.
    Even if someone releases improved facial-recognition software【C17】________high accuracy across every demographic, this technology will still be a【C18】________Because algorithms can scan video footage much more quickly than humans can, facial recognition【C19】________constant surveillance of a population. These systems can easily be used to treat every citizen like a criminal, which destroys individual privacy,【C20】________free expression and causes psychological damage.
【C15】
选项 A、mental
B、ethical
C、healthy
D、acceptable
答案B
解析 形容词辨析题。四个选项分别为[A]mental“心理的”；[B]ethical“道德的”；[C]healthy“健康的”；[D]acceptable“可接受的”。空格所在句意为“一些公司正在尝试通过提供更多非白人和非男性的面孔来改善他们的系统，但是他们并不总是以________方式这样做”，根据后面的具体例子可知，以低廉价格购买黑人面孔图像的方式是不道德的，因此[B]选项最符合文意。
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