You can take fish oil. You can invest in a language class. or some hours of exercise every week. There
are countless ways to improve your memory and cognitive functioning(认知功能) .  You know. the brain-train-
ing industry is expected to reach  $ 8 billion by 2022.  But the cheapest. easiest. and most time-tested way to
sharpen your brain is right in front of your face. That' s why moms are always on their kids' cases to turn off
the TV and pick up a good book.  But there ' s something astonishing about how it can make it.
      The most basic effect occurs in the area associated with language reception. Processing written material
- from the letters to the words to the sentences to the stories themselves - takes your attention to inter-
pret the information. Typically, when you read, you have more time to think, judge and even criticize. And
the very nature of such an ordinary activity encourages the brain to work harder and better, deepening your un-
derstanding of your course and your future career.
      And the benefits of reading continue long after you' ve put down that great book. It is clarified that some
of those benefits last for five days. We call that a shadow activity, almost like a muscle memory - that
means. even if you are a retired sportsman now. some skills can still be stored in your memory. That means
the language part of the brain would get a workout from reading.
      What if you are a poor,  or even a dyslexic. reader who feels as if you ' ll never be able to read enough to
get these benefits? A book can fix that problem too ! According to a study, one hundred hours of remedial( 补
救的) reading classes significantly improved the quality of the brains' white matter. where information is pro-
cessed. So turn off your phone and your computer, set aside a good hour or two - and just read on a regu-
lar basis.
28. The text is mainly written to
     A. show the power of knowledge                    B. persuade people to read regularly
     C. clarify the benefits of good books                 D. introduce how to improve memory
29.  What does the underlined “ such an ordinary  activity "  in Paragraph 2 refer to?
     A. Judging.          B. Thinking.        C. Learning.         D. Reading.
30. What does the third paragraph suggest?
     A. Reading has a long-time influence.                B. Books are needed if you want to graduate.
     C. The retired sportsmen have good memories.        D. Reading a lot is beneficial to one' s muscles.
31. For whom is the text mainly intended?
     A. Parents.               B. Office workers.       C. College students.      D. University graduates.
                               
28. B。写作意图题。本文旨在引导听众（读者）读书，再结合文章最后一句可知，故选B。
29. D。文章结构题。根据前后文的相关信息可知这种活动为“读书”。
30.A。推理判断题。根据该段…the benefits of reading continue long after you’ve put down thatgreat book. …those benefits last for five days可知。
31. C。推理判断题。纵观全文及第2段deepening your understanding of your course and your futurecareer可知。