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题号：CR707
Educational Theorist: Recent editorials have called for limits on the amount of homework assigned to schoolchildren younger than 12. They point out that free-time activities play an important role in childhood development and that homework in large quantities can severely restrict children's free time, hindering their development. But the actual average homework time for children under 12—little more than 30 minutes per night—leaves plenty of free time. In reality, therefore, the editorials' rationale cannot justify the restriction they advocate.
Which of the following, if true, would most seriously call into question the educational theorist's conclusion?
翻译
教育理论家:最近的新闻社论呼吁限制12岁以下儿童家庭作业的数量。他们指出，业余活动对儿童的发展起着重要作用，而大量的家庭作业会严重影响孩子们的课余时间，这会阻碍他们的发展。但是，12岁以下的孩子每晚平均写家庭作业的时间（大概每晚刚刚超过30分钟）会给他们留下了大量的课余时间。因此，社论的所阐述的理由并不能证明他们的提议是合理的。
解析
该题需要我们去质疑教育理论家的说法，即12岁以下孩子的家庭作业确实太多，进而影响了他们的课余生活
A. Some teachers give as homework assignments work of a kind that research suggests is most effective educationally when done in class.
一些老师布置的作业是一种在课上完成非常有教育效果的研究，该选项涉及的是授课内容，与infer内容无关。
B. For children younger than 12, regularly doing homework in the first years of school has no proven academic value, but many educators believe that it fosters self-discipline and time management.
对于12岁以前的儿童，在校初期的那几年的日常被证明并没有学术意义，但是很多教育者认为这会促进孩子的自我约束和时间管理，这与孩子们的休闲时间无关，故排除。
C.Some homework assignments are related to free-time activities that children engage in, such as reading or hobbies.
一些家庭作业与孩子的课外活动相关，例如阅读或者兴趣爱好，该选项并不能说明孩子们的课余时间被大量占用，故排除该选项。
D. A substantial proportion of schoolchildren under 12, particularly those in their first few years of school, have less than 10 minutes of homework assigned per night.
很大一部分12岁以下的学生，尤其是那些刚入学几年的学生，每晚布置的家庭作业不到10分钟。这说明教育学家所说的每天30分钟的作业确实超出平均水平，会影响孩子们的课余生活，需要限制。因此，该选项为正确答案。
E. Some free-time activities teach children skills or information that they later find useful in their schoolwork.
一些课余活动会教会孩子一些技巧和信息，这些将会在他们后期的学校生活中起到重要的作用，该选项涉及的是课外活动的内容，与文中infer无关，可排除。
答案 D
