Question 9 is based on the passage you have just heard.

Passage One

听力原文

       The role of homework in classrooms is not a new debate. Many parents and teachers are ardent supporters of homework. But do all students benefit from homework? (9) [A 2006 research paper suggested some correlation between the amount of homework done by a student and future academic achievement for middle and high school students, but not so much for younger kids.]       

        A Stanford study in 2014 suggested that the same was true for students in California’s affluent communities. The findings challenged the idea that homework was “inherently good”. The researchers concluded that there was an upper limit to the correlation between homework and achievement, suggesting that high school students shouldn’t be doing more than two hours of homework a night. And the most valuable kind of homework for elementary-level children was simply assigned free reading.

       The topic gets more complicated when we talk about the divide between rural and urban communities. (10) [Studies found that in remote areas the poor quality or lack of Internet access can put students at a disadvantage,] because 70% of teachers in these areas assign homework that requires Internet access. But one in three households doesn’t have Internet. Experts assert homework requiring the Internet isn’t fair.

       While the debate continues about the effect of homework on academic achievements, there are studies focusing on other benefits of homework. (11) [A study in Germany found that homework could have an effect on students’ personalities, suggesting that doing homework might help kids to become more conscientious and independent learners.]

9. What did the 2006 research find about homework?（关于家庭作业，2006年的研究发现了什么？）

解析：D。录音开头表示，一篇2006年的研究论文指出，中学生的家庭作业量与未来的学业成绩之间存在一定的相关性，而这种相关性在年龄更小的孩子身上表现较弱。由此可知，家庭作业对年龄较小的孩子帮助不大，D选项中的not of much help to younger children是对录音中not so much for younger kids的同义替换，故D项为正确答案。

错项排除：录音中表示，斯坦福大学2014年的一项研究表明，加州富裕社区学生的情况与2006年的研究结果一致，而2006年的研究并没有比较家庭作业对富裕和贫穷社区不同学生的影响，故A项错误。该研究表明中学生的家庭作业量与未来的学业成绩之间存在一定的相关性，但并不代表家庭作业有利于孩子未来的发展，B项属于过度引申，故错误。录音中虽然提到了父母对家庭作业的态度，但这并非2006年研究的内容，故C项错误。