单选题
More and more, the operations of our business, governments, and financial institutions are controlled by information that exists only inside computer memories. Anyone clever enough to modify this information for his own purpose 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 in crimes that go undetected. But it's disturbing to note how many of the crimes we don't know about were detected by accident, not by systematic inspections or other security procedures. The computer criminals who have been caught may have been 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 he 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 other lawbreakers, who must leave the country, commit suicide, or go to jail, computer criminals sometimes escape punishment, demanding not only that they not be charged but that they be given good recommendations and perhaps other benefits. All too often, their demands have been met. Why? Because company executives are afraid of the bad publicity that would result if the public found out that their computer had been misused. They hesitate at the thought of a criminal boasting in open court how he jugged the most confidential records right under the noses of the company's executives and security staff. And so another computer criminal departs with just the recommendations he needs to continue his crimes elsewhere.
单选题
It can be concluded from the passage that ______ A. it is still impossible to detect computer crimes today. B. computer crimes are the most serous problem in the operation of financial institution. C. computer criminals can escape punishment because they can't be detected. D. people commit computer crimes at the request of their company.
【正确答案】
C
【答案解析】本题为细节题。由第二段开头的It's easy for computer crimes to go undetected if no one checks up on what the computer is doing，和这一段结尾的The computer criminals who have been caught may have been the victims of uncommonly bad luck可推知，C项正确。A项显然错误；B项中的the most serious problem的概念原文未提及；D项的at the request of their company原文未提及。
单选题
It is implied in the third paragraph that ______ A. many more computer crimes go undetected than are discovered. B. the rapid increase of computer crimes is a troublesome problem. C. most computer criminals are smart enough to cover up their crimes. D. most computer criminals are smart enough to cover up their bad luck.
【正确答案】
A
【答案解析】本题为推断题。从第二段的But it's disturbing to note how many of the crimes we don't know about were detected by accident, not by systematic inspections or other security procedures. The computer criminals who have been caught may have been the victims of uncommonly bad luck可推知A项正确，注意转折词后面的信息往往是答案的所在。
单选题
Which of the following is .mentioned in the passage? A. A strict law against computer crimes must be enforced. B. Companies need to impose restrictions in confidential information. C. Companies will guard against computer crimes to protect their reputation. D. Companies usually hesitate to uncover computer crimes.
【正确答案】
D
【答案解析】本题为综合题。由最后一段的Because company executives are afraid of the bad publicity that would result if the public found out that their computer had been misused可推知答案为D项，选项中的hesitate to uncover代替了原文的afraid of...the bad publicity。
单选题
What may happen to computer criminals once they are caught? A. with a bad reputation they can hardly find another job. B. they will be denied access to confidential information. C. they may walk away and easily find another job. D. they must leave the country or go to jail.
【正确答案】
C
【答案解析】本题为推断题。分析选项，A项和C项为意义相反选项，一般答案为两者之一。文章的最后一句话And so another computer criminal departs with just the recommendations he needs to continue his crimes elsewhere暗示了电脑犯罪者的前途：带着满意的介绍信，离开这家公司又可以再寻另外的地方继续犯罪。也就是说他很容易再找到另外一份工作，所以选择C。
单选题
The passage is mainly about ______. A. why computer crimes are difficult to detect by systematical inspection B. why computer criminals are often able to escape punishment C. why computer criminals manage to get good recommendation from their former employers D. why computer crimes can't be eliminated