Why are some mental aerobic e…——2010 高考英语第 49 题答案解析

【解答】
Why are some mental aerobic exercises designed to engage people in multitasking?
A. To make them more productive. B. To reduce their stress and anxiety.
C. To develop their communication skills. D. To help them perform daily tasks more easily.
答案：A
解析：推理判断题。根据第一段的内容可知，作者提出：“In fact, some excellent mental
aerobic exercises (大脑训练) involve engaging the brain in two or more challenging activities

at a
time.”，之后用although引出转折，这种训练有时并不能productive。所以选择A。有部分
人认为这种大脑的训练能够帮助他们高效的工作。