首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Learning disabilities are very common. They affect perhaps 10 percent of all children. Four times as many boys as girls have lea
Learning disabilities are very common. They affect perhaps 10 percent of all children. Four times as many boys as girls have lea
admin
2005-06-26
88
问题
Learning disabilities are very common. They affect perhaps 10 percent of all children. Four times as many boys as girls have learning disabilities.
Since about 1970, new research has helped brain scientists understand these problems better. Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things. There is no longer any question that all learning disabilities result from differences in the way the brain is organized.
You cannot look at a child and tell if he or she has a learning disability. There is no outward sign of the disorder. So some researchers began looking at the brain itself to learn what might be wrong.
In one study, researchers examined the brain of the learning-disabled person who had died in an accident. They found two unusual things. One involved cells in the left side of the brain, which control language. These cells normally are white. In the learning-disabled person, however, these cells were gray. The researchers also found that many of the nerve cells were not in a line the way they should have been. The nerve cells were mixed together.
The study was carried out under the guidance of Norman Geschwind, an early expert on learning disabilities. Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally. Probably, he said, nerve cells there did not connect as they should. So the brain was like an electrical device in which the wires were crossed.
Other researchers did not examine brain tissue. Instead, they measured the brain’s electrical activity and made a map of the electrical’ signals.
Frank Duffy experimented with this technique at Children’s Hospital Medical Center in Boston. Doctor Duffy found large differences in the brain activity of normal children and those with reading problems. The differences appeared throughout the brain. Doctor Duffy said his research is evidence that reading disabilities involve damage to a wide area of the brain, not just the left side.
Doctor Duffy believed that______.
选项
A、he found the exact cause of learning disabilities
B、the problem of learning disabilities was not limited to the left side of the brain
C、the problem of learning disabilities resulted from the left side of the brain
D、the problem of learning disabilities did not lie in the left side of the brain
答案
B
解析
文章在最后一段中论述了达菲医生的观点。达菲医生对那些无学习能力的儿童进行了研究。通过研究证实,无学习能力与大脑许多范围区域的损伤有关,不仅仅是大脑的左半部。可见,达菲医生认为,无学习能力不只是与大脑的左半部有关。B项符合文意。A、C、D项的内容都与原文所述不符。所以本题的正确答案为B。
转载请注明原文地址:https://kaotiyun.com/show/cTmi777K
0
在职申硕(同等学力)英语
相关试题推荐
Aninternationaltreatysignedseveralyearsagobanstradeinplantsandanimalsofendangeredspecies.
Shouldeitherofthesesituationsoccur,wrongcontrolactionsmightbetakenandapotentialaccidentsequenceinitiated.
Someinternationalstudents(use)acassetterecorder(tomake)tapesoftheirclasses(sothat)theycanrepeatthelectures(a
Whatdoestheauthorthinkofthewords"civilization"and"culture"?Accordingtotheauthortheword"civilization"originall
Forthispart,youaretowriteacompositionof120to150wordsonWhichisMoreImportant,WealthorHealth?Inyourcomposit
AmusselgripsahardsurfaceveryfirmlytoScientistsarenotthinkingofusingmusselstoproducethesupergluemainlybeca
IftwoscientistsatLosAlamosNationalLaboratoryarecorrect,Peoplewillstillbedrivinggasoline-poweredcars50yearsfro
Countriesthattraditionallyneverallowedforeignstudentstostayandwork—likeGermanyortheUnitedKingdom—arefacingtheir
Evidenceexiststhathearingproblemsmaybealleviatedbychangesindietandexercisehabits.
Thefunofplayingthegamewasagreaterincentivethantheprize.
随机试题
I’mafraidthatyouhaveno________buttocomealongwithusatpresent.
简述合同的一般内容。
Thetraditionalapproach______withcomplexproblemsistobreakthemdownintosmaller,moreeasilymanagedproblems.
直肠癌早期的临床表现可以包括
关于增值税纳税义务和扣缴义务发生时间,下列说法正确的有()。(2018年)
改革开放以来,我国经济快速增长,但是受亚洲金融危机影响,经济出现了许多新问题,其中之一就是1998--2002年的物价问题。该时期物价指数分别为。根据以上资料,回答下列问题:为了治理这种物价问题,可以采取的财政政策措施有()。
阅读以下文字,完成问题。近日,民政部有关官员表示,依据新修订的《老年法》,“以后子女不经常回家看望老人,老人可以诉诸法律”。看望父母本是做人的基本伦理,从这个意义上说,“常回家看看”入法着实有些多余。但揣测立法者的动机,就会发现这条规定基于“空巢老人”愈
财政部会同国家发改委发出通知,决定自2013年1月1日起,取消和免征30项涉及企业和居民的行政事业性收费,其中包括()。①税务发票工本费②户口簿工本费③房屋租赁管理费④企业注册登记费
3阶常系数线性齐次微分方程y"’一2y"+y’一2y=0的通解为y=________.
Whichofthefollowingitalicizedphrasesindicatesreason?
最新回复
(
0
)