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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.
【C3】
选项 A、careless
B、lawless
C、pointless
D、helpless
答案B
解析 本填空考查形容词辨析。从语法上分析：seems是系动词，被修饰成分是a world，而increasingly是副词修饰本填空的形容词。本填空形容词的选择有赖于对文章主旨倾向的理解，即文章主线是谈论网络安全并且认为有必要采取措施保障网络安全。根据这个主题，四个选项中与此主线最相关的词汇就是B项lawless(无法无天的)，即这是一个越来越无法无天、缺少法规制约的网络世界，因此才有必要采取措施bringing safety and security。同时本填空的前句中出现了the explosion of cyber-crime that has swept across the Web(席卷网络世界的网络犯罪)，根据这个已知信息也能判断出本填空的答案应该是B项lawless(无法无天的)，构成复现呼应结构。其他选项A项careless(粗心的，漫不经心的)、C项pointless(毫无意义的)、D项helpless(无助的)均是无关词，与原文“网络安全”的主题毫无关系，予以排除。
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