Carmen Arace Middle School is situated in the pastoral town of Bloomfield, Connecticut, but four years ago it faced many of the

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问题     Carmen Arace Middle School is situated in the pastoral town of Bloomfield, Connecticut, but four years ago it faced many of the same challenges as inner-city schools in nearby cities: low scores on standardized tests, dropping enrollment and high rates of detention. Then the school’s principal, Delores Bolton, persuaded her board to buy a laptop computer for each student and teacher to use, in school and at home. The board also provided wireless Internet access at school. Total cost: $ 2. 5 million.
    Now, an hour before classes start, every seat in the library is taken by students eager to get online. After school, students on buses pull laptops from backpacks to get started on homework. Since the computers arrived, enrollment is up 20%. Disciplinary suspensions are down 80%. Scores on state achievement tests are up 35%. Bolton, who is black, is proud to run "a school with 90% black enrollment that is on the cutting edge. "
    School systems in rural Maine and New York City are eager to follow Arace Middle School’s example. Governor Angus King has proposed using $ 50 million from an unexpected budget surplus to buy a laptop for all of Maine’s 17 000 seventh-graders—and for new seventh-graders each fall. The plan, scaled back to $ 30 million in a compromise with the legislature, will be voted on soon.
    The New York City board of education voted unanimously on April 12, 2000, to create a school Internet portal, which would make money by selling ads and licensing e-commerce sites. The portal will also provide e-mail service for the city’s 1. 1 million public school students. Profits will be used to buy laptops for each of the school system’s 87 000 fourth-graders. Within nine years, all students in grades 4 and higher will have their own computers.
    Back in Bloomfield, the school board is seeking federal grant money to expand its laptop program to high school students. In the meantime, most of the kinks have been worked out. Some students were using their computers to goof off or visit unauthorized websites. But teachers have the ability to track where students have been on the Web and to restrict them. "That is the worst...when they disable you," says eighth-grade honors student Jamie Bas-sell. "You go through laptop withdrawal. " The habit is rubbing off on parents. "I taught my mom to use e-mail," says another eighth-grader. "And now she’s taking computer classes, I’m so proud of her!"
The author mentions Carmen Arace Middle School to show that______.

选项 A、this school is run by a black and thus it has 90% black enrollment
B、it is worth the cost to provide the students laptops for their performance
C、Delores Bolton is a very capable school master
D、the school spent too much money on buying computers

答案B

解析 作者引用实例是为了证实某种观点。根据文章中第一段和第二段内容,卡门·阿拉斯中学位于康涅狄格州具有田园风光的布鲁姆非尔德镇,然而4年前它面临着附近城市的市内中学所共有的困境:标准化考试成绩降低,入学率骤减,留级率上升。于是校长德洛尔斯·博尔顿说服校董事会为每个学生及老师购买一台可在学校或家里使用的便携式电脑,校董事会还提供校内无线上网设备。费用总计250万美元。如今,上课前一小时,图书馆便座无虚席,学生们都早早地等着上网。放学后,学生们在回家的校车巴士上,就从书包里拿出便携式电脑做家庭作业。自从引进电脑以后,入学率上升20%,停课率下降80%,统考成绩上升了35%。令黑人校长博尔顿感到骄傲的是,他的学校有90%的学生是黑人,这种情况是前所未有的。由此我们可以推断出,为孩子们配备电脑极大地促进了他们的学习兴趣和动机,同时,不论学校还是学生都从中受益匪浅。因此,本题的正确答案应为B,就学生们的表现为他们购买便携式电脑物有所值。
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