题目内容
14.Everyone knows that walking is beneficial to the aging body,but did you know it keeps the mind sharper as well?Research shows that walking can actually increase the connectivity(联系) within brain,which tends to decrease as the grey hairs increase."Patterns of connectivity decrease as we get older,"said Dr.Arthur F.Kramer,who led the study team at the University of Illinois at Urbana-Champaign.
"Networks aren't as well connected to support the things we do,such as driving,"he said."But we found as a function(功能)of aerobic(有氧的) fitness,the networks became more reasonably connected."
Kramer's walking study,which was published in the journal Frontiers in Aging Neuroscience,studied 70adults from 60to 80years old in a year."Persons in the walking group,the aerobics training group,got the largest benefits,"he said,and not just physically.
"We also measured brain function,"said Kramer,whose team used FMRI to examine brain networks.A group of 20-to-30-year olds were tested for comparison."The aerobic group also improved in memory,attention and a variety of other cognitive(认知的) processes,"Kramer said."As the older people in the walking group became more fit,the connectivity among different areas in the networks increased and became similar to those of the 20-year olds,"Kramer explained.
But the results did not happen overnight.Effects in the walking group were observed only after they trained for 12months.Six-month tests got no clear changes.
The findings come as no surprise to Dr.Lynn Millar,an expert with the American College of Sports Medicine.She said while walking might seem like a simple activity,the brain is actually working to gather information from many different sources.
"When we walk we collect visual information,auditory information,as well as information from joints and muscles about where the foot is,how much force,and things like that",said Millar,a professor of Physical Therapy at Andrews University,in Berrien Springs,Michigan.
58.Which of the following might be the best title for the passage?C
A.Walking is necessary to the old B.The strengths and weaknesses of walking
C.Walking helps keep body and brain young D.The latest experiment about walking
59.What do you think"networks"refers to in Para.3?D
A.the Internet B.the relationship among people
C.the key to health D.the functions of the body
60.What can be concluded from the passage?C
A.The functions of our bodies are only related to exercise but not age.
B.If the old walk often,their connectivity can be better than the young.
C.It takes quite a long time to find out the effects in the walking group.
D.Walking is the best way to stay mentally and physically healthy.
分析 本文是一篇科教类阅读,谈论的主要话题是走路不仅可以强健身体,还可以让心智得到锻炼.
解答 58-60.CDC
58题答案:C考查主旨大意,综观全文以及第一段中的开门见山"Everyone knows that walking is beneficial to the aging body,but did you know it keeps the mind sharper as well?"(所有人都知道走路对衰老的身体是有好处的,但是你知道它也能够时大脑更加敏锐吗?)可知,谈论的主要话题是走路不仅可以强健身体,还可以让心智得到锻炼.故本题答案为C选项.
59题答案:D词义猜测题.根据第一段中的"walking can actually increase the connectivity(联系) within brain…"(走路真的增加脑内的联系);上文中心句,"Patterns of connectivity decrease as we get older…"(联系的模式会随着我们变老而衰减…)以及下文"…as a function(功能)of aerobic(有氧的) fitness,the networks…"(作为一项有氧锻炼的功能,身体机能…)可知,随着年龄的老化,人的身体机能也随着退化,但走路是一种有氧锻炼,可以加快大脑运转速度,提高身体机能.所以networks此处指的是"身体功能",因此本题答案为D选项.
60题答案:C细节理解题.依据倒数第三段第一句"But the results did not happen overnight."(但是结果不会一夜之间发生).可知正确答案为C选项.
点评 本文是一篇科教类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对 性找出相关语句进行仔细分析,结合选项选出正确答案.推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案.