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 purposes can get 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 (键盘打孔)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 (向……透露)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 of how he juggled (耍弄)the most confidential records right under the noses of the company's executives, accountants, and security staff. And so another computer criminal departs with just the recommendations he needs to continue his crimes elsewhere.
单选题     Computer crimes can be better detected to a certain degree if ______.
 
【正确答案】 B
【答案解析】根据题干中的Computer crimes和better detected定位到第2段。 推理判断题。首先，本题要求找到如何较好地detect(发现)计算机犯罪，不是问如何防止计算机犯罪，因此，选项C不正确。只要将第2段第1句反过来理解，就能知道若要发现计算机犯罪，就要时常检查计算机处理的信息内容，因此选项B正确。另外，选项A和D说的做法不现实，而且文中也没有指出我们应该这样做。 [参考译文] 我们的工商业、政府以及金融机构的运作越来越多地受到仅存于计算机存储器中的信息的控制。只要足够聪明，任何为了自己的目的而更改这些信息的人都会得到丰厚的回报。更有甚者，为数不少干过这种事并被捉住的人设法逃脱了惩罚。 如果无人检查计算机处理的信息内容，计算机犯罪便不容易被发现。但是，即便罪行被发现，罪犯不仅可能会逃脱惩罚，而且还可能从他的前任老板那里拿到一份光彩的推荐信。 当然，我们没有统计过有多少罪行未被发现。但是如果数一数有多少我们已知的罪行是靠侥幸而不是通过系统的检查或其他保安程序发现的，就会让人头痛不已。至于有些计算机罪犯被捉拿归案，得归因于他们少有的倒霉。 例如，某个操作键盘打孔机的人抱怨说必须加班给额外的卡片打孔。调查显示，让她打孔的额外卡片所处理的是不诚实的交易。在另外一宗案子里，窃贼的手下因为不满而向被盗的公司透露了消息。 其他的人犯了法不是被驱逐出境就是自杀身亡，或者被关进监狱。计算机罪犯则不然，有时能逃脱惩罚。他们不仅要求免予起诉，还想要得到光彩的推荐信或是其他好处。而他们的要求往往大都能得到满足。 为什么?因为公司高层害怕如果公众发现他们的计算机被误用会带来不良的公共形象。一想到罪犯会在法庭上吹嘘自己是如何易如反掌地盗窃那些最机密的记录——而且是在公司的高层、会计和保安人员的鼻子底下，他们就犹豫不决了。就这样，又一个计算机罪犯带着他在其他地方继续犯罪时用得着的推荐信逃之天天。
单选题     It is implied in the third paragraph that ______.
 
【正确答案】 A
【答案解析】根据题干直接定位到第3段。 推理判断题。第3段第2句中的detected by accident暗示了答案。其他选项都没有合理的推断依据。本题最具干扰性的是选项D，本段最后一句又提到与选项相关的内容，但并没有如选项D那样用most限定范围，因此选项D不准确。
单选题     The fourth paragraph wants to support the idea that ______.
 
【正确答案】 D
【答案解析】根据题干直接定位到第4段。 推理判断题。例子都是支持出现在其前后的观点的。第4段举了两个例子，分别为了说明上一段第2句和第3句的观点，将这两句的观点综合来看，就可知道作者想要说明计算机犯罪的发现极具偶然性，因此选项D为正确答案。本题最具干扰性的是选项C，虽然第3段末句提到计算机罪犯被抓是因为他们运气不好，但事实上，作者这样写是表示其幽默感，真正的目的是为了说明计算机犯罪很少被发现或被惩罚，因此选项C不是作者的真正想法。
单选题     What may happen to computer criminals once they are caught? ______
 
【正确答案】 C
【答案解析】根据题干中的computer criminals和caught定位到第2、5段。 事实细节题。根据第2段末句以及第5段末句都可以明确地找出答案。
单选题     The passage is mainly about ______.
 
【正确答案】 B
【答案解析】全文。 主旨大意题。纵观全文各个段落(除第4段举例外)，可以明确地判断出它们都是围绕一个主题展开讨论：为什么计算机罪犯得以成功逃脱惩罚。选项A所述的“很难通过系统的检查发现计算机罪犯”并不完全属实，原文并未指出这样做difficult(很难)；选项C所述的“计算机罪犯想法从前任老板那里得到好推荐”虽然属实，但文章并没有详细解释how(怎么样)；本文也并没有讨论如何消除计算机犯罪及其结果，因此选项D也并非本文的中心论题。