2. 外语
  3. Back in the day, a good report card earned you a parental pat on the back, but now it could be money in your pocket. Experiments

Back in the day, a good report card earned you a parental pat on the back, but now it could be money in your pocket. Experiments

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问题     Back in the day, a good report card earned you a parental pat on the back, but now it could be money in your pocket. Experiments with cash incentives (激励) for students have been catching on in public-school districts across the country, and so has the debate over whether they are a【C1】______tool for hard-to-motivate students.
    According to a study【C2】______today by the social-policy research group MDRC, a non-profit organization, cash incentives combined with counseling offered "real hope" to low-income and nontraditional students at two Louisiana community colleges.
    The program【C3】______by the Louisiana Department of Social Services and the Louisiana Workforce Commission was simple: enroll in college at least half-time,【C4】______at least a C average and earn $1,000 a semester for up to two terms. Participants, who were randomly【C5】______, were 30% more likely to register for a second semester than were students who were not offered the supplemental financial【C6】______. And the participants who were first offered cash incentives in spring 2004—and thus whose progress was tracked for longer than that of subsequent groups before Hurricane Katrina【C7】______forced researchers to suspend the survey for several months in August 2005—were also more likely than their peers to be enrolled in college a year after they had finished the two-term program.     Students offered cash incentives in the Louisiana program earned more【C8】______and were more likely to attain a C average than were nonparticipants. And they showed psychological【C9】______too, reporting more positive feelings about themselves and their abilities to【C10】______their goals for the future.
A) abruptly E) brilliant I) fulfilled M) released
B) accomplish F) claim J) funded N) retain
C) aid G) cooperative K) maintain O) selected
D) benefits H) credits L) naturally
【C5】
选项
答案O
解析 此处应为动词的过去分词形式，与空前的were构成被动语态，根据空前的randomly可知此处应该表示参与者被随意“挑选”，只有selected符合句意。
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