[单项选择]The concept of internet, ______ has intrigued scientists since the mid-20th century.
A. the transmission of images, sounds and messages over distances
B. transmitting of images, sounds and messages along distances
C. to transmit images, sounds and messages on distance
D. the transmissibility of images, sounds and messages for distances

[单项选择]The concept of internet, ______ has intrigued scientists since the mid-20th century.
A. the transmission of images, sounds and messages over distances
B. transmitting of images, sounds and messages along distances
C. to transmit images, sounds and messages on distance
D. the transmissibility of images, sounds and messages for distances

[单项选择]The concept of upward social mobility has been an abiding feature of American life.


A. enduring
B. unaffected
C. intriguing
D. observable

[单项选择]Internet (has made possible) (for people to know) what (is going) on (all over) the world.
A. has made possible
B. for people to know
C. is going
D. all over

[单项选择]

Ever since AL Gore invented it, the Internet has been a paradise for those with a creative attitude to facts. Students, for example, commission and sell essays with such ease there that online "paper mills" devoted to this trade are one of the few dotcom business models still thriving. With a few clicks of a mouse, a student can contract out any academic chore to "research" sites such as Gradersaver. com or the Evil House of Cheating.
One market opportunity, however, frequently creates another. The past few months have seen a rapid rise in interest in software designed to catch the cheats. The subscriber base of Turnitin, a leading anti-plagiarism software house based in Oakland, California, has risen by 25% since the beginning of the year. Around 150,000 students in America alone are under its beady electronic eye. And in Britain, the Joint Information Systems Committee, the unit responsible for advising the country’s universities on information
A. its superb management
B. the thriving of academic cheating
C. its big electronic eye
D. the test of its software by the Joint Information Systems Committee

[单项选择]Every host and router on the Internet has an IP address, which encodes its
A. host number
B. host number and socket
C. network number
D. host number and network number

[单项选择]INTRIGUED : ENRAPTURED::
A. (A) respectful: reverent
B. (B) sacrosanct : impious
C. (C) conscientious : alarmed
D. (D) serene : mellow
E. (E) anodyne : pleasant

[单项选择]Over (the past) 20 years, the Internet has (helped change) our world in (either) way or another (for the better).
A. the past
B. as well as
C. to dinner
D. neither of

[单项选择]My interest in surfing on Internet has ______ most of my spare time, but it has repaid me a great deal of enjoyment.


A. taken off
B. taken down
C. taken up
D. taken away

[单项选择]The Internet has been developing at a speed ______ people's expectations in the past two decades.
A. over
B. of
C. under
D. beyond

[单项选择]The Internet has brought______big changes in the way we work.
A. about
B. out
C. back
D. up

[单项选择]The Internet is based oil the concept of a(n)______relationship between computers．
A. browser/server
B. client/server
C. conection
D. topology