首页
登录
职称英语
Learning disabilities are very common. They affect perhaps 10 percent of all
Learning disabilities are very common. They affect perhaps 10 percent of all
游客
2023-10-19
26
管理
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.【72】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 has a learning disability. There is no outward sign of the disorder.【73】.
In one study, researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.【74】, 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,【75】. 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.【76】.
Other researchers did not examine brain tissue. Instead,【77】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.【78】. Doctor Duffy said his research gives evidence that reading disabilities involve damage to a wide area of the brain, not just the left side.
Sentences:
A. an early expert on learning disabilities
B. Scientists now know there are many different kinds of learning disabilities
C. So the brain was like an electrical device in which the wires were crossed.
D. So some researchers began looking at the brain itself to learn what might be wrong.
E. Scientists found that the brain cells of a learning-disability person differ from those of a normal person in size and arrangement.
F. The differences appeared throughout the brain.
G. they measured the brain’s electrical activity
H. One involved cells in the left side of the brain [br]
选项
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3111720.html
相关试题推荐
(1)Ricci,45,isnowstrikingoutonperhapshisboldestventureyet.Hepla
Moresurprising,perhaps,thanthecurrentdifficultiesoftraditionalmarri
Moresurprising,perhaps,thanthecurrentdifficultiesoftraditionalmarri
Intheearly1800’s,over80percentoftheUnitedStateslaborforcewasen
Intheearly1800’s,over80percentoftheUnitedStateslaborforcewasen
Intheearly1800’s,over80percentoftheUnitedStateslaborforcewasen
Intheearly1800’s,over80percentoftheUnitedStateslaborforcewasen
Morethan85percentofFrenchCanada’spopulationspeaksFrenchasamotherton
Howcouldsoftwareerrorspossiblyaffectsuchabasicandwell-understoodfinan
[originaltext]ExperientialLearning
随机试题
InternetofThingsEraIsComingA)Frommeatthermometersmo
DavidBernalwasfamoussinceheenteredtheuniversity.[br]Sincethatnighti
Strangethingshappentotimewhenyoutravel,becausetheearthis(11)in
Washington,D.C.Whenyouhearpeople
Ourresearchhasfocusedonadrugwhichisso______astobeabletochangebra
运用人工智能技术开展投资顾问业务,以下说法正确的是()。 ①非金融机构不得
小儿,3岁,站立位测身高92cm,体重20kg,精神好,食欲佳。应首先考虑的诊断
某企业只生产羽绒服,在春季、夏季的时候同时使用现金折扣、交易折扣,以较低价格鼓励
(2018年真题)下列各项中,不应作为合同履约成本确认为合同资产的有()。
施工中材料的消耗分为必需消耗的材料和损失的材料,在确定材料定额消耗量时,必需消耗
最新回复
(
0
)