Make Use of a Social Intercourse Website to Support a Social Public Order As high school students flock to social networking

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问题          Make Use of a Social Intercourse Website to Support a Social Public Order
    As high school students flock to social networking sites, campus police are scanning, their Facehook and MySpace pages for tips to help break up fights, monitor gangs and prevent crime.
Some students object to police looking over their shoulders. But officers responsible for school safety say routine checks of the online forums often add to the knowledge they gather from hallways or schoolyards.
    In recent years, school administrators have blamed some campus fights on Internet conflicts and urged parents to keep watch on their children’s computer activity. But students who use the Web to let their 500 closest friends know what they are doing at all times are sometimes surprised that police are watching, too.
    Police don’t have special privileges on Facebook or MySpace. Students who want to go unobserved can change privacy settings so that their profiles are displayed only to a list of approved people. But the default settings leave those profiles open to many Interact users (in the case of Facebook) or all of them (in the case of MySpace).
    Employers and college admissions counselors have examined online profiles of student applicants for some time. Police across the country have been doing the same for the past two or three years, said Kevin Quinn. a spokesman for the Minnesotabased National Association of School Resource Officers. "If you’re already familiar with the technology, it doesn’t take you but a couple of minutes to hook into the student population and keep an eye on things," Quinn said.
    An entrance into MySpace profiles found high school students discussing drugs, sex and fights. It was all publicly available (although in language that caused reporter to blush).
    Late last month, Fairfax County police announced the arrests of seven Chantilly area teenagers for trying to recruit Franklin Middle School students to a gang. That investigation was aided when a student showed the school resource officer gang symbols littering one of the suspect’s MySpace profiles.
    Fairfax police say they pride themselves on addressing issues in schools before they develop into major problems. "Keeping an eye on Facebook and MySpace has become an extra tool in that effort," they said.
What does the phase "look over their shoulders" ( Lines 1~2,Para.2) mean?

选项 A、Have an eye on what students are talking about online.
B、Pretend not to see anything when students need help.
C、Limit their rights of talking freely online.
D、Have routine checks at school.

答案A

解析 语义理解题。由题干中的look over their shoulders定位到第二段第一句。由该句以及上下文可知,学生们所反对的实际上是警察对于这些网站的监控。故[A]“关注学生在网上的谈话内容”与文章中的内容相符。[B]“当学生需要帮助的时候假装看不到”,这在原文中没有提及,故排除.[C]“限制学生在网上的谈话自由”与文章意思不符。原文仅仅说警察只是上网scan“浏览”,并没有说警察会在对网络的谈话内容进行干涉,故排除;[D]“在校园进行巡逻”,这虽然是警察会在校园里做的事,但并不是题干中词组的意思,故排除。
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