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Some historians say that the most important contribution of Dwight Eisenhower’ s presidency (总统任期) in the 1950s was the U.S. int
Some historians say that the most important contribution of Dwight Eisenhower’ s presidency (总统任期) in the 1950s was the U.S. int
admin
2017-11-14
40
问题
Some historians say that the most important contribution of Dwight Eisenhower’ s presidency (总统任期) in the 1950s was the U.S. interstate highway system. It was a【C1】______ project, easily surpassing the scale of such previous human【C2】______ as the Panama Canal. Eisenhower’s interstate highways【C3】______ the nation together in new ways and【C4】______ major economic growth by making commerce less【C5】______ . Today, an information superhighway has been built—an electronic network that【C6】______ libraries, corporations, government agencies and【C7】______ . This electronic superhighway is called the Internet,【C8】______ it is the backbone (主干) of the World Wide Web.
The Internet had its【C9】______ in a 1969 U. S. Defense Department computer network called ARPAnet, which【C10】______ Advanced Research Projects Agency Network. The Pentagon built the network for military contractors and universities doing military research to【C11】______ information. In 1983 the National Science Foundation (NSF) ,【C12】______ mission is to promote science, took over.
This new NSF network【C13】______ more and more institutional users, many of【C14】______ had their own internal networks. For example, most universities that【C15】______ the NSF network had intra-campus computer networks. The NSF network【C16】______ became a connector for thousands of other networks.【C17】______ a backbone system that interconnects networks, Internet was a name that fit.
So we can see that the Internet is the wired infrastructure (基础设施) on which web【C18】______ move. It began as a military communication system, which expanded into a government-funded【C19】______ research network.
Today, the Internet is a user-financed system tying institutions of many sorts together【C20】______ an " information superhighway".
【C9】
选项
A、samples
B、sources
C、origins
D、precedents
答案
C
解析
名词辨义。本段讲述互联网的历史,它最早起源于1969年美国国防部建立的被称为“阿帕网”的计算机网络,所以选择C项origins“起源,由来”。A项samples意为“标本,样品”,B项sources意为“来源”,D项precedents意为“先例,前例”。
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考研英语一
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