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s, each indicating the kind of business or organization using that name. The committee recruited 88 companies around the world to act as registrars for its .firm, .ship, .web, .rec, .info, .nom domains. The US government has still to give the system its blessing, and may yet push ahead with its original scheme. Despite this, the 88 registrars have been taking applications for several months. They are due to start registering names this month with the Internet Council of registrars, which grew out of the ad hoc committee.
　　To prevent conflicting names from being registered, the council will take one name from each registrar in turn before going back for the second name in their queues, and so on. This has led to a flourishing trade, with companies trying to buy a place near the head of the queue. Global Names of Singapore is charging $10,000 to make sure request for a name is the first one it sends off to the central database. Other registrars are charging nonrefundable deposits for places at the top of the queue. David Maher, chairman of the Policy Oversight Committee that is helping to set up and oversee the system, says that all registrars are subject to local laws regarding consumer protection and competition. But he says that the committee “will not act as an enforcement body in this area.”
　　1. The domain name “.edu” is operated by
　　A) the US government
　　B) the company Network Solutions
　　C) Internet Council of Registrars
　　D)Both A and B
　　2. the .firm, .ship, .web, .arts, .rec, .info and .nom domains are NOT run by
　　A) a temporary committee organized by Internet’s influential services
　　B) The US government.
　　C) 88 registrars
　　D) Internet Council of Registrars
　　3. Global Names of Singapore is
　　A) a company which applies for a name on the Internet
　　B) a registrar
　　C) a company under the supervision of Policy Oversight Committee
　　D) the central database
　　4. How can a company successfully register a name with the Internet?
　　A) It must pay up to $10,000 or a nonrefundable deposit.
　　B) Its application must be the first one at the top of the registration queue.
　　C) It must get approval from the Policy Oversight Committee.
　　D) Both A and B.
　　5. What is the meaning of the phrases “net cost” in the title?
　　A) The amount of money covering the basics.
　　B) The registration fee for a domain name on the Internet.
　　C) The amount of money for the construction of a network in a company.
　　D) The amount of money paid to the Internet service annually
　　标准答案： B,B,B,A,B
　　解析：
　　20、
标准答案： B,B,A,C,D
　　解析：
　　21、
　　Egypt felled by famine
　　Even ancient Egypts mighty pyramid builders were powerless in the face of the famine that helped bring down their civilian around 2180BC. Now evidence gleaned from mud deposited by the River Nile suggests that a shift in climate thousands of kilometers to the south was ultimately to blem -- and the same or worse could happen today.
　　The ancient Egyptians depended on the Niles annual floods to irrigate their crops. But any change in climate that pushed the African monsoons southwards out of Ethiopia would have diminished these floods.
　　Dwindling rains in the Ethiopian highlands would have meant fewer plants to establish the soil. When rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt, along with sediment from the Whi