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  3. Helping teachers to lift student achievement more effectively has become a major theme in US education. Most efforts that are no

Helping teachers to lift student achievement more effectively has become a major theme in US education. Most efforts that are no

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问题    Helping teachers to lift student achievement more effectively has become a major theme in US education. Most efforts that are now in their early stages or being planned focus either on building the skills of teachers already in the classroom or on retaining the best and dismissing the least effective performers. The question of who should actually teach and how the nation’ s schools might attract more young people from the top tier of college graduates, as part of a systematic effort to improve teaching in the United States, has received comparatively little attention.
   McKinsey’s experience with school systems in more than 50 countries suggests that this is an important gap in the US debate. In a new report, Closing the Talent Gap : Attracting and Retaining Top-Third Graduates to Careers in Teaching , we review the experiences of the world’s top-performing systems, in Finland, Singapore, and South Korea. These countries recruit 100 percent of their teacher corps from the top third of the academic cohort. Along with strong training and good working conditions, this extraordinary selectivity is part of an integrated system that promotes the prestige of teaching—and has achieved extraordinary results. In the United States, by contrast, only 23 percent of new teachers come from the top third, and just 14 percent of new teachers who come from the top third work in high-poverty schools, where attracting and retaining talented people is particularly difficult. The report asks what it would take to emulate nations that systematically recruit top students to teaching if the United States decided that it was worthwhile to do so.
   McKinsey’s survey of nearly 1,500 top-third US college students and current teachers, highlighted in the report, shows that a major effort would be needed to attract and retain the best students to teaching. The stakes are high: recent McKinsey research found that a persistent achievement gap between US students and those in top-performing nations imposes the economic equivalent of a permanent national recession.
   Research on whether the academic background of teachers is a useful predictor of classroom effectiveness has had mixed results, and no single reforjn can be depicted as a silver bullet. But the success of the best-performing national systems suggests that an effort to attract the country’s top students to teaching deserves serious examination as part of a comprehensive human-capital strategy for the US education system.
We can see from the third paragraph that______.
选项 A、the United States has attracted and retained the best students to teaching
B、the performance of US students influences the national recession
C、there is no gap between US students and those in top-performing nations
D、1,500 top-third US college students have become teachers
答案B
解析 此题为细节分析题。根据题干信息the third paragraph定位在第三段。该段第一句提到，“1500名学生(来自排名前三分之一的美国高校学生及目前正在从事教师工作的人)”是麦卡锡进行研究的调查对象，因此，排除D项；接着第一句后半句指出，“……需要付出巨大的努力来吸引和留住优等生教学”，说明他们还没有足够成功地完成该项工作，排除A项；该段第二句：“美国学生与那些在教育方面表现最为出色的国家的学生之间的学业差距，对国家在经济方面的持久衰退产生了同等的影响。”由此可排除C项，选出B项。
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