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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 there is an important gap in the US teaching. 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 topperforming 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, high-lighted 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 reform 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.
It can be inferred from the recent McKinsey research that______.
选项 A、schools in poor areas have difficulty in attracting good teachers
B、only around 1,500 top-third students choose to be teachers
C、improving the students’ performance may have positive effect on economy
D、teachers in the US have lower prestige than those in other top-performing nations
答案C
解析 根据题干关键词定位至第三段第二句。由该句可知，美国学生和那些表现出色的国家的学生在学业上持续存在的差距会导致国家经济的永久衰退。因此可以推断提高学生的表现可以使国家在经济方面取得积极的效果，故C项为正确答案。A项是表面信息，不需要推断，故排除；B项表述与原文不符，故排除；麦肯锡的调查并没有表明美国的教师与其他教育发达国家的教师地位不同，故排除D项。
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