Proofread the given passage on ANSWER SHEET TWO as
instructed. For a wrong word, underline the wrong word
and write the correct one in the blank provided at the end of the
line. For a missing word, mark the position of the
missing word with a"∧"sign and write the word you believe to be missing in the
blank provided at the end of the line. For an
unnecessary word, cross the unnecessary word with a slash "—" and pat the
word in the blank provided at the end of the line.
Begun in the late 1960s by Pentagon weapons researchers as a
system for easing communication between computers in disparate electric
networks, the Internet has evolved (1) ______ into a
popular vehicle for scientific research, communication, entertainment, and more.
It links together thousands of computer networks such as those belonging to
corporations, (2) ______ commercial services,
universities, and research centers, joining them as branches on a tree to
larger networks known as backbones. Once a computer is on-line, that is,
connected by modem or networking equipment of the Internet, the user can
search through data banks (3) ______ for
documents, chat with other computer users, or instant send opinions and
observations (4) ______ to the likes of President Bill
Clinton, film critic Roger Ebert, or rocker Billy Idol (just to name a few).
No central governing body runs the Internet, and nobody has an exact census of
(5) ______ users. But estimates of the number
already range from around 10 million to as high as 5 million. Well over
10,000 separated computer networks are connected by the Internet, and
(6) ______ total traffic was expected to double during 1993.
Today, the Internet is free resources and commercial services that provide
databases and computer files with a fee. Publishers are (7)
______ seeking to make books and periodicals available on the Internet as a
profit-making adventure (8) ______ Meanwhile, works in the public
domain have begun appearing on the Internet for users to "upload" to their
computers virtually free of charge. With electronic access to data (9)
______ from all over the world, scholarly research that in the past would
have required months of travel could now be done at one’s desk.
(10) ______