| 第二十篇（165）
Hacking
（1）People tend to think of computers as isolated machines, working away all by themselves.
1.People usually regard computers as
A.part of a network
B.means of exchanging intelligence.
C.isolated or personal machines.
D.electronic machines.
Some do-personal computers without an outside link, like someones hideaway（隐蔽的） cabin in the woods.But just as most homes are tied to a community by streets, bus routes and electric lines, computers that exchange intelligence are part of a community-local, national and even global network joined by telephone connections.
The computer network is a creation of the electronic age, but it is based on old-fashioned trust.It cannot work without trust.（2）A rogue（无赖） loose（为所欲为的） in a computer system called hacker is worse than a thief entering your house.（3）He could go through anyones electronic mail or add to, change, distort or delete anything in the information stored in the computers memory.He could even take control of the entire system by implanting his own instructions in the software that runs it.He could shut computer to erase any sign of his ever having been there.
2.Why does the writer mention “a thief” in the second paragraph? （单词推理）
A.to show that a hacker is more dangerous than a thief.
B.to tell people that thieves like to steal computers nowadays.
C.to demand that a computer network should be set up against thieves.