文档介绍：2011年全国硕士研究生入学考试(英语二)真题及参考答案
Section I  Use of English
Directions:
Read the following text. Choose the best word(s) for each numbered black and mark A, B, C or D on ANSWER SHEET 1. (10 points)
The 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  1  across the Web.
Can privacy be preserved  2   bringing safety and security to a world that seems increasingly  3   ?
Last month, Howard Schmidt, the nation’s cyber-czar, offered the federal government a  4  to make the Web a safer place-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 puter .and would authenticate users at a range of online services.
The idea is to  8  a federation of private online identity systems. User could  9  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 driver’s license      10    by the government.
Google and Microsoft are panies that already have these“single sign-on” systems that make it possible for users to   11  just once but use many different services.
  12 .the approach would create a “walled garden” n cyberspace, with safe “neighborhoods” and bright “streetlights” to establish a sense of a   13  community.
Mr. Schmidt described it as a “voluntary ecosystem” in which “individuals anizations plete online transactions with  14  ,trusting the identities of each other and the identities of the infrastructure
  15  which the transaction runs”.
Still, the administration’s plan has  16  privacy rights activists. Some applaud the approach; others are concerned. It seems clear that such a scheme is an initiative push toward what would  17  be pulsory “drive’s license” mentality.
The pl