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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 draw a conclusion from the last paragraph that______.
选项 A、only attracting and retaining the best graduates to teaching will not necessarily lift student achievement
B、the experiences of the world’s top-performing systems are a silver bullet to reform the American education
C、there are no similarities between American education system and the best-performing national systems
D、the academic background of teachers can predict the classroom effectiveness
答案A
解析 此题为细节推断题。根据题干信息the last paragraph定位在第四段。第一句意思是：“关于是否老师的学术背景可以当做课堂效益的有用指标的研究结果是混杂的，任何单独的改革都不能被描述成解决问题的杀手锏。”这句话表明，教师的大学教育背景并不一定就能预测教师的课堂效果，所以把提高教育质量的赌注压在教师的大学教育背景上是行不通的。换句话说，也就是A项的内容“单靠吸引并留住优秀毕业生从事教育工作并非一定能提升学生的成绩”，由此判断，A选项为正确答案。
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