大学英语六级完形填空历年真题最新十套
200906
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 62 project, easily surpassing the scale of such previous human as the Panama Canal. Eisenhower's interstate highways the nation together in new ways and major economic growth by making commerce less electronic network that libraries, corporations, government agencies and This electronic superhighway is called the Internet, it is the backbone (主干) of the World Wide Web.
The Internet had its 70 in a 1969 U.S. Defense Department computer network called ARPAnet, which Advanced Research Projects Agency Network. The Pentagon built the network for military contractors and universities doing military research to information. In 1983 the National Science Foundation (NSF), mission is to promote science, took over.
This new NSF network 74 more and more institutional users, many of 75 had their own internal networks. For example, most universities that the NSF network had intracampus computer networks. The NSF network became a connector for thousands of other networks. 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 79 move. It began as a military communication system, which expanded into a government-funded research network.
Today, the Internet is a user-financed system tying institutions of many sorts together 81 an "information superhighway."
62. [A] concise [B] radical [C] massive [D] trivial
63. [A] behaviors [B] endeavors [C] inventions [D] elements
64. [A] packed [B] stuck [C] suppressed [D] bound
65. [A] facilitated [B] modified [C] mobilized [D] terminated
66. [A] competitive [B] comparative [C] exclusive [D] expensive
67. [A] merges [B] connects [C] relays [D] unifies
68. [A] figures [B] personalities [C] individuals [D] humans
69. [A] and [B] yet [C] or [D] while
70. [A] samples [B] sources [C] origins [D] precedents
71. [A] stood by [B] stood for [C] stood against [D] stood over
72. [A] exchange [B] bypass [C] switch [D] interact
73. [A] their [B] that [C] when [D] whose
74. [A] expanded [B] contracted [C] attracted [D] extended
75. [A] what [B] which [C] these [D] them
76. [A] joined [B] attached [C] participated [D] involved
77. [A] moreover [B] however [C] likewise [D] then
78. [A] With [B] By [C] In [D] As
79. [A] contexts [B] signs [C] messages [D] leaflets
80. [A] citizen [B] civilian [C] amateur [D] resident
81. [A] into [B] amid [C] over [D] toward