Some historian say that the most important contribution of Dwight Eisenhower’s presidency (總統(tǒng)任期) in the 1950s was the U.S. interstate highway system. It was a massive project, easily surpassing the scale of such previous human endeavors as the Panama Canal. Eisenhower’s interstate highways __1__ the nation together in new ways and __2__ major economic growth by making commerce less __3__. Today, an information superhighway has been built—an electronic network that __4__ libraries, corporations, government agencies and __5__. This electronic superhighway is called the Internet, and it is the backbone (主干) of the World Wide Web.

     The Internet had its origins in a 1969 U.S. Defense Department computer network called Arpanet（阿帕網(wǎng)）, which __6__ Advanced Research Projects Agency Network. The Pentagon built the network for military contractors and universities doing military research to __7__ information. In 1983 the National Science Foundation (NSF), __8__ mission is to promote science, took over.

     This new NSF network __9__ more and more institutional users, may of __10__ had their own internal networks. For example, most universities that __11__ the NSF network had intercampus computer networks. The NSF network __12__ became a connector for thousands of other networks. __13__ a backbone system that interconnects networks, internet was a name that fit.

     So we can see that the Internet is the wired infrastructure (基礎(chǔ)設(shè)施) on which web __14__ move. It began as a military communication system, which expanded into a government-funded __15__ research network.

     Today, the Internet is a user-financed system tying intuitions of many sorts together into an “information superhighway.”

1. A．packed B．stuck C．suppressed D．bound

2. A．facilitated B．modified C．mobilized D．terminated

3. A．competitive B．comparative C．exclusive D．expensive

4. A．merges B．connects C．relays D．unifies

5. A．figures B．personalities C．individuals D．humans

6. A．stood by B．stood for C．stood against D．stood over

7. A．exchange B．bypass C．switch D．interact

8. A．their B．that C．when D．whose

9. A．expanded B．contracted C．a(chǎn)ttracted D．extended

10. A．what B．which C．these D．them

11. A．joined B．a(chǎn)ttached C．participated D．involved

12. A．moreover B．however C．likewise D．then

13. A．With B．By C．In D．As

14. A．contexts B．signs C．messages D．leaflets

15. A．citizen B．civilian C．a(chǎn)mateur D．resident

參考答案：

1-5 D A C B C 6-10 B A D C B 11-15 A D D C B