2011年考研英语二真题及答案解析.pdf

2011年考研英语二真题及答案解析--第1页 2011 年考研英语二真题及答案 解析 2011年考研英语二真题及答案解析--第1页 2011年考研英语二真题及答案解析--第2页 2011 年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 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 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 nations 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 2011年考研英语二真题及答案解析--第2页 2011年考研英语二真题及答案解析--第3页 credentia 7 to a specific computer .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 Internet drivers license 10 by the government. Google and Microsoft are among companies that already have thesesingle sign-on systems that make