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
2024-08-19
39
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
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3726291.html
相关试题推荐
Learningdisabilitiesareverycommon.Theyaffectperhaps10percentofall
Learningdisabilitiesareverycommon.Theyaffectperhaps10percentofall
Well,really______nowisstartlearningwhattodowiththissoftwareandread
Betterchildcareandeducation______affectedalowmorbidityandmortalityam
石油价格的飞速上涨对世界经济产生了很大影响。(affect)Therapidincreaseinthepriceofoilhasgreatly
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitu
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitu
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitu
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitu
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitu
随机试题
Inthosedays,executivesexpectedtospendmostoftheirlivesinthesamefirm
大悬挑体育场屋盖设计中,哪种结构用钢量最少?()A.索膜结构 B.悬挑折面
在计算预算定额人工工日消耗量时,包含在人工幅度差内的用工是( )。A.超运距用工
调要注意的事项为A.越早期调效果越好 B.调要一次完成 C.要磨除所有的工作
根据《基础地理信息数据档案管理与保护规范》,下列关于数据档案归档管理的说法中,正
缩宫素用作催产、引产时常用的给药途径是A.ih. B.iv. C.iv.gt
下列选项中,关于独立基金销售机构应具备的条件说法错误的有()。A:有符合规定的组
2009年3月份轿车销量约为多少万辆?()A.64 B.59 C.54
2019年10月吴某在某网络平台上下单购买了苹果手机一部支付货款7630元三天后
在三相配电系统中,每相均接入一盏交流220V、1kW的碘钨灯,同时在A相和B相间
最新回复
(
0
)