单选题 Passage Two
Questions 29 to 31 are based on the passage you have just heard.
【正确答案】 B
【答案解析】[听力原文]29-31
In many businesses, computers have largely replaced paperwork, because they are fast and do not make mistakes. Many banks put advertisements in the newspaper showing that their business deals are "untouched by human hands" and therefore safe from human temptation. Obviously, computers have no reason to steal money. But the growing number of computer crimes shows they can be used to steal. Computer criminals don't use guns. (29) And even if they are caught, it is hard to punish them because there are no witnesses and often no evidences. A computer cannot remember who used it; it simply does what it is told. One clerk at a New York City bank used a computer to steal more than one and a half million dollars in just four years. No one noticed this because he moved money from one account to another. Each time a customer he had robbed questioned the balance in his account, the clerk claimed a computer error, then replaced the missing money from someone else's account. (30) This clerk was caught only because he was gambling. When the police broke up an illegal gambling operation, his name was put in the records. Most computer criminals have been minor employees. But police wonder if this is true. As one official say, (31) "I have a feeling that there is more crime out there than we are catching. What we are seeing now is all so poorly done. I wonder what the real experts are doing--the ones who really know how a computer works."
29. What is the best advantage of computer for criminal?

由选项推测本题与电脑的特点有关。本题关键句为“And even it they are caught,it is hard to punish them because there are no witnesses and often no evidences”.由于缺乏证据,很难对实施电脑犯罪的罪犯定罪。这一点对罪犯来说最有利,故正确答案为B)。
【正确答案】 A
【答案解析】[听力原文]
How was the bank clerk's crime found?

由选项推测本题是考查案件是如何被发现的。本题关键句为“This clerk Was caught only because he was gambling”.罪犯由于赌博被发现,故正确答案为A)。
【正确答案】 D
【答案解析】[听力原文]
Why does computer crime worry the police?

由选项推测本题考查原因,且四个选项都与电脑犯罪的危害有关。本题关键句为“I have a feeling that there is more crime out there...I wonder what the real experts are doing--the ones who really know how a computer works”.警察的话意思是目前破获的都是简单案件,而专家利用电脑实施的犯罪更难侦破,故正确答案为D)。