2. 外语
  3. If you want to improve your child’s results at school,【T1】______that they do plenty of exercise. Scientists have already shown t

If you want to improve your child’s results at school,【T1】______that they do plenty of exercise. Scientists have already shown t

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问题     If you want to improve your child’s results at school,【T1】______that they do plenty of exercise. Scientists have already shown that physical activity can make your children【T2】______. But a team in America has used scans to show that an important part of the brain【T3】______grows in children who are fit. These youngsters【T4】______to be more intelligent and have better memories than those who are【T5】______.
    Scientists also found that one of the most important parts of their brains was 12% larger than that of 【T6】______youngsters. They believe that encouraging children to take exercise from a very young age could help them【T7】______better at school later. Researchers from the University of Illinois, in the US, studied the brains of 49 children aged nine and ten using a magnetic resonance(共振)imaging scan, 【T8】______. And the findings had important implications for【T9】______. According to the professor of the study, experience, environmental and economic factors all impact brain development.【T10】______, then do exercise.
【T1】
选项
答案ensure
解析 分析句子结构可知，空格处所在句是个祈使句，因此空格处应填入一个动词原形。纵观全文内容可知，本文阐述的中心内容是锻炼可以提高人的智力。因此，此处想要表达的是：如果想提高孩子在学校的学习成绩，就要保证他们进行充分的锻炼。由此可以推测，空格处所填动词应表示“确保，保证”。结合录音可知答案为ensure。
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