Question

10．Many people focus on physical fitness，but few know that brain fitness is also something you can work on．In fact，you can exercise your brain as often as you work out your arms or abs--and the results can be positive and empowering．It's helpful to think of your brain as you work out a muscle．To improve your brain，you can't simply repeat the same exercises over and over．Just as lifting a two pound weight will no longer challenge you，so will repetitive exercises such as crosswords or Sudoku．Once you master easy exercises，you must move on to harder ones in order to push your brain-like your muscles-to a new level．
Scientists once believed that your mental abilities were fixed in adulthood．Now that studies on neuroplasticity have shown just the opposite，millions of people around the world have adopted the new practice of brain training．
The most popular of these brain training products is made by the San Francisco-based Lumosity，which employs a team of in-house neuroscientists with degrees from Stanford and UC Berkeley．Realizing that brains need more sophisticated programs and guidance to grow and change，Lumosity's scientists work with an experienced team of game designers．Together they've developed a fun，effective online brain training program that measures，tracks，and adapts to your progress so you'll always be challenged．Lumosity's training system and 40+games are based on well-studied tests used in clinical neuropsychology research．
In a 2013 Stanford study，a treatment group of 21 breast cancer survivors used 12 weeks of Lumosity training to work on processing speed，mental flexibility，and working memory tasks．On average，those who trained improved on tests of these abilities，compared to a group that did not train with Lumosity．There is even some first round evidence suggesting that Lumosity may be beneficial to normal，healthy adults．In a 2011 study by Lumosity and San Francisco State University researchers，13 people who did Lumosity training over 5 weeks improved on tests of brain performance compared to a group that did not train．On average，those who trained improved working memory scores by 10% and attention scores by 20%．
Training can take just a few minutes a day，but the rewards can make a difference in many aspects of life．The goal of brain training is not to improve game scores：it's to improve the underlying core abilities that those games rely on．Lumosity is one of the first and most popular brain training programs in existence．There's a small fee to use the full product，or new users can start a free trial．
66．What is the best title for the passage？A
A．Brain training can make a difference
B．Brain training-a new science．
C．Brain training can keep you fit
D．Brain training-an open online course．
67．In order to improve our brain，we canB．
A．do the same exercises day after day                      
B．challenge it with harder exercises day by day
C．work out crosswords every day                      
D．adapt to physical change
68．According to the passage，what is Lumosity？C
A．It is a team of in-house neuroscientists
B．It is a team of experienced game designers．
C．It is an online brain training program
D．It is a clinical brain training research．
69．In Paragraph 4，the writer gives so many figures toD．
A．explain the cause of Lumosity                                  
B．clarify the principle of Lumosity
C．confirm the process of Lumosity                              
D．show the effect of Lumosity
70．It seems to us that the passage is exactlyA．
A．an ad．B．a survey．C．a questionnaire．D．a quiz．

Answer 1

分析 本文是一个介绍Lumosity（在线的脑训练计划）的广告．文章讲述了大脑活动在人们生活的许多方面都有作用．通过日复一日的同样练习，可以提高我们的大脑．并且研究数据显示Lumosity可能对正常、健康的成年人有益．

解答 66．A 主旨大意题．根据文章内容和最后一段Training can take just a few minutes a day，but the rewards can make a difference in many aspects of life．可知这篇文章主要叙述了大脑活动在人们生活的许多方面都有作用．故选A．
67．B 细节理解题．根据第一段To improve your brain，you can't simply repeat the same exercises over and over．及该段最后一句Once you master easy exercises，you must move on to harder ones in order to push your brain-like your muscles-to a new level．可知为了提高我们的大脑，我们可以日复一日地做同样的练习．故选B．
68．C 细节理解题．根据第三段的内容可知"Lumosity"是一个在线的脑训练计划．故选C．
69．D 细节理解题．根据第四段 evidence suggesting that Lumosity may be beneficial to normal，healthy adults．可知研究数据显示Lumosity可能对正常、健康的成年人有益．故选D．
70．A 推理判断题．根据最后一段Lumosity is one of the first and most popular brain training programs in existence．There's a small fee to use the full product，or new users can start a free trial．可知这篇文章是一个广告．故选A．

点评 本文考察学生的理解推断能力以及细心程度，只要抓住文章的关键词，采用寻读的方法查找细节，就能找到正确答案．