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  3. The Internet affords anonymity to its users, a blessing to privacy and freedom of speech. But that very anonymity is also behind

The Internet affords anonymity to its users, a blessing to privacy and freedom of speech. But that very anonymity is also behind

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问题     The Internet affords anonymity to its users, a blessing to privacy and freedom of speech. But that very anonymity is also behind the explosion of cyber-crime that has【C1】________across the Web.
    Can privacy be preserved【C2】________bringing safety and security to a world that seems increasingly【C3】________?
    Last month, Howard Schmidt, the nation’s cyber-czar, offered the federal government a【C4】________to make the Web a safer place—a "voluntary trusted identify" system that would be the high-tech【C5】________ of a physical key, a fingerprint and a photo ID card, all rolled【C6】________one. The system might use a smart identity card, or a digital credential【C7】________to a specific computer, and would authenticate users at a range of online services.
    The idea is to【C8】________a federation of private online identify systems. Users could【C9】________which system to join, and only registered users whose identities have been authenticated could navigate those systems. The approach contrasts with one that would require an Internet driver’s license【C10】________by the government.
    Google and Microsoft are among companies that already have these "single sign-on" systems that make it possible for users to【C11】________just once but use many different services.
    【C12】________, the approach would create a "walled garden" in cyberspace with safe "neighborhoods" and bright "streetlights" to establish a sense of a【C13】________community.
    Mr. Schmidt described it as a "voluntary ecosystem" in which "individuals and organizations can complete online transactions with【C14】________, trusting the identities of each other and the identities of infrastructure【C15】________which the transaction runs."
    Still, the administration’s plan has【C16】________privacy rights activists. Some applaud the approach; others are concerned. It seems clear that such a scheme is an initiative push toward what would【C17】________be a compulsory Internet "driver’s license" mentality.
    The plan has also been greeted with【C18】________by some computer security experts, who worry that the "voluntary ecosystem" envisioned by Mr. Schmidt would still leave much of the Internet【C19】________. They argue that all Internet users should be【C20】________to register and identify themselves, in the same way that drivers must be licensed to drive on public roads.
【C17】
选项 A、frequently
B、incidentally
C、occasionally
D、eventually
答案D
解析 本填空需要选择一个副词，句子中出现了一系列的提示线索：It seems clear that such a scheme is an initiative push toward what would________be a compulsory Internet "driver’s license" mentality. initiative表示“初步的”，toward表示“朝向”，而would表示将来时，这三个线索组合在一起提示compulsory Internet "driver’s license" mentality应该是未来最终的结果，四个选项中的最佳答案是D项eventually(最终地)，这样initiative—toward—would—eventually形成一个逻辑上很顺畅的衔接。其他选项例如A项frequently(经常地)、B项incidentally(偶然地)和C项occasionally (偶尔地)与填空所在句子中的线索initiative—toward—would无法构成合乎逻辑的衔接。
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