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
31
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
D
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3726288.html
相关试题推荐
Learningdisabilitiesareverycommon.Theyaffectperhaps10percentofall
Learningdisabilitiesareverycommon.Theyaffectperhaps10percentofall
Learningdisabilitiesareverycommon.Theyaffectperhaps10percentofall
Learningdisabilitiesareverycommon.Theyaffectperhaps10percentofall
Carefulsurveyshaveindicatedthatasmanyas50percentofpatientsdonottak
Onehundredboyswentonaschoolouting.Eighty-onepercentoftheboyslosta
Betterchildcareandeducation______affectedalowmorbidityandmortalityam
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitu
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitu
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitu
随机试题
Tokyoisaconfusingcitymainlybecause______.[br]InTokyo,thebestwayfor
[originaltext]M:Hey,Sophia,howareyoudoing?W:Hi,Bob.I’mgood,thanks.
_________________________(直到截止日他才寄出)hisapplicationform.Itwasnotuntilthe
软交换是网络演进以及下一代()的核心设备之一。A.分组网络 B.电话网络
孕妇感染梅毒正确的是A.母婴垂直传播是重要传播途径 B.早期妊娠发现并确诊,应
手术区皮肤消毒区域包括手术切口周围( )A.10cm的区域 B.15cm的区
质量策划的关键是()。A.制定质量目标并设法使其实现 B.监督产品质量 C
如果股价原有的趋势是向上,形成上升三角形的整理形态,股价今后的走势可能会()。A
案例一(6): 第三次咨询: 求助者:我按您的建议到精神科去查了一下,去了两
会计人员强化服务意识具体要做到()。A、摆正自己的工作位置 B、做到谦虚谨慎,
最新回复
(
0
)