单选题
Calculating Crime

When you think about math, you probably don't think about breaking the law, solving mysteries or finding criminals. But a mathematician in Maryland does, and he has come up with mathematical tools to help police find criminals.
People who solve crimes look for patterns that might reveal the identity of the criminal. It's long been believed, for example, that criminals will break the law closer to where they live. simply because it's easier to get around in one's own neighborhood. If police see a pattern of robberies in a certain area, they may look for a suspect who lives near the crime scenes. So, the farther away from the area a crime takes place, the less likely it is that the same criminal did it.
But Mike O'Leary, a mathematician at Towson University in Maryland, says that this kind of approach may be too simple. He says that police may get better clues to the location of an offender's home base by combining these patterns with a city's layout and historical crime records.
The records of past crimes contain geographical information and can reveal easy targets--that is, the kind of stores that might be less difficult to rob. Because these stores are along roads, the locations of past crimes contain information about where major streets and intersections(十字路口) are. O'Leary is writing a new computer program that will quickly provide this kind of information for a given city. His program also includes information about the people who live in the city, and information about how a criminal's patterns change with age. (It's been shown, for example, that the younger the criminal, the closer to home the crime. )
Other computer programmers have worked on similar software, but O'Leary's uses more math. The mathematician plans to make his computer program available, free of charge, to police departments around the country.
The program is just one way to use math to fight crime. O'Leary says that criminology--the study of crime and criminals contains a lot of good math problems. "I feel like I'm in a gold mine and I'm the only one. who knows what gold looks like." he says. "It's a lot of fun. /

单选题 Which of the following statements about math is true?
【正确答案】 B
【答案解析】[解析] 根据第1段的1—2行:“当你想到数学时,你可能不会联想起犯法,解开谜团或发现罪犯。”可判断应选B项。
单选题 People tend to think there is a relationship between
【正确答案】 D
【答案解析】[解析] 根据第2段的2—3行:“举例来说,长期以来人们普遍认为,罪犯经常是在更加靠近他们居住的地方犯法,只是因为在他们自己熟知的地方更容易逃跑。”可判断应选D项。
单选题 O'Leary includes all the following information in writing his program EXCEPT
【正确答案】 B
【答案解析】[解析] A项在4段1行;C项在4段6行;D项在4段7行。以此可判断应选B项。
单选题 O'Leary's program is different from other similar software in that
【正确答案】 C
【答案解析】[解析] 根据第5段的第1行:“其他计算机编程者一直在类似的软件上下功夫,但O'Leary的程序利用了更多的数学原理。”可判断应选C项。
单选题 It can be inferred from the last paragraph that O'Leary
【正确答案】 D
【答案解析】[解析] 根据最后1段的第1句:“该项程序只是利用数学来对抗犯罪的一种方法。”或第2句:“O'Leary说,犯罪学——是研究犯罪和罪犯的一门学科——包含了大量有益的数学问题。”可判断应选D项。