Although the percentage of first graders in Almaria who were excellent reade

游客2024-01-10  15

问题     Although the percentage of first graders in Almaria who were excellent readers varied little between 1995 and 2010, the percentage of first graders who had considerable difficulty reading their schoolbooks increased markedly during that period. This evidence strongly indicates that the average reading ability of first graders decreased between 1995 and 2010.
    Which of the following, if true, provides the strongest additional support for the argument?

选项 A、The number of hours devoted to reading activities in first-grade classrooms in Almaria did not vary significantly, on average, between 1995 and 2010.
B、The percentage of first graders in Almaria who had difficulty solving arithmetic problems did not increase as much between 1995 and 2010 as did the percentage of first graders who had reading difficulties.
C、The number of children in Almaria who were enrolled as first graders decreased steadily between 1995 and 2010.
D、The average difficulty of the schoolbooks used in first-grade classrooms in Almaria decreased between 1995 and 2010.
E、The average number of schoolbooks used in first-grade classrooms in Almaria increased between 1995 and 2010.

答案 D

解析 课本难度下降,结果有阅读困难的学生的百分比还在上升,这只能反映出平均阅读能力下降。D选项属于“直接加强结论”。A项这是一个迷惑性选项。有的考生会认为,既然阅读的时间不变,但是阅读困难的百分比上升,于是就说明阅读能力下降。但是文章根本没有提到阅读时间和阅读能力之间的关系,无关选项,不选。B项算术能力和阅读能力没有关系,无关选项,不选。C项文章讨论的是平均阅读能力。而百分比=阅读困难学生,总学生,本身也就是平均数。而该选项讨论的是学生数量的变化,与文章讨论的平均数没有关系,因此不选。E项课本数量和阅读能力没有必然联系,无关选项,不选。
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