对外经济贸易大学2009考博英语真题及其经典解析-育明考博对外经济贸易大学2009考博英语真题及其经典解析-育明考博.pdfVIP

中国考博辅导首选学校 对外经济贸易大学2009考博英语真题及其经典解析 Section I Use of English Directions： Readthefollowingtext.Choose thebestword(s) foreachnumbered black and mark A, B, C or D on ANSWER SHEET 1. (10points) The Internetaffords anonymity to itsusers, ablessing toprivacy and freedom of speech. But that very anonymity is also behind the explosion of cyber-crime that has 1 across the Web. Can privacy be preserved 2 bringing safety and security to a world that seems increasingly 3 ? Last month, Howard Schmidt, thenation’s cyber-czar, offered the federal governmenta 4 tomake theWeb a saferplace-a “voluntary trusted identity” system that would be the high-tech 5 of a physical key, a fingerprint and a photo ID card, all rolled 6 one. The system might use a smart identity card, or a digital credential 7 to a specific computer .and would authenticate users at a range of online services. Geng duo yuan xiao zhen ti ji qi jiexi qing lianxi quan guo mian fei zi xun dian hua: si ling ling liu liu ba liu jiu qi ba ,huo jia zi xun qq: qi qi er liu qi ba wu san qi . The ideaisto 8 afederationofprivateonlineidentitysystems. User could 9 which system to join, and only registered users whose identitieshave been authenticated couldnavigate those systems.The approach contrasts with one that would require an Internet driver’ 中国考博辅导首选学校 s license 10 by the government. Google and Microsoft are among companies that already have these “single sign-on”systems that make it possible for users to 11 just once but use many different services. 12.theapproachwould createa “walled garden” n cyberspace, withsafe “neighborhoods”andbright “streetlights” toestablish a sense of a 13 community. Mr. Schmidt described it as a “voluntary ecosystem” in which “individuals and organizations can complete online transactions with 14 ,trusti