文档介绍：2011年研究生入学考试英语二真题
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 boon to privacy and freedom of speech. But that very anonymity is also behind the explosion of cybercrime that has  1  across the Web.
Can privacy be preserved  2  bringing a semblance of safety and security to a world that seems increasingly  3  ? 
Last month, Howard Schmidt, the nation’s cyberczar, offered the Obama government a 4  to make the Web a safer place — a “voluntary identify” system that would be the high-tech  5  of a physical key, 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 identify systems. Users 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 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” in safe “neighborhoods” and bright “streetlights” to establish a sense of  13  community.
Mr. Schmidt described it as a “voluntary ecosystem” in which individuals anizations plete online transactions with  14  ,trusting the identities of the infrastructure that the transaction runs  15  .'"
Still, the administration’s plan has  16  privacy rights activists. Some applaud the approach; others are concerned. It seems clear that such an initiative push toward what would  17  be a license” mentality.
The plan has also been greeted with  18  by some experts, who worry that the “voluntary ecosystem” would still leav