1997.1 英语六级真题.pdf

1997.1 CET 6 1997 年 1 月大学英语六级试题 Part I Listening comprehension (20 minutes) 略 Part II Reading Comprehension (35 minutes) Direction : There are 4 reading passages in this part. Each passage is following by some questions or unfinished statements - For each of them there are four choices marked A ) , B ) , C) and D ) . You should decide on the best choice and mark the and mark the corresponding letter on the Answer Sheet with a single line through the centre . Question 21 to 25 are based on the following passage: More and more, the operations of our businesses, governments, and financial institutions are controlled by information that exists only inside computer memories. Anyone clever enough to modify this information for his own purposes can reap substantial rewards. Even worse, a number of people who have done this and been caught at it have managed to get away without punishment . It s easy for computer crimes to go undetected if no one checks up on what the computer is doing. But even if the crime is detected, the criminal may walk away not only unpunished but with a glowing recommendation from his former employers. Of course, we have no statistics on crimes that go undetected. But it s disturbing to note how many of the crimes we do know about were detected by accident, not by systematic inspections or other security procedures. The computer criminals who have been caught may be the victims of uncommonly bad luck. For example, a certain keypunch operator complained of having to stay overtime to punch extra cards. Investigation revealed that the extra cards she was being asked to punch were for dishonest transactions. In another case, dissatisfied employees of the thief tipped off the company that was being robbed . Unlike