首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
共用题干 第二篇Exercise and BrainJust as exercise strengthens the heart and lungs,b...
共用题干 第二篇Exercise and BrainJust as exercise strengthens the heart and lungs,b...
admin
2020-12-24
32
问题
共用题干
第二篇
Exercise and Brain
Just as exercise strengthens the heart and lungs,bones and muscles,it may also power up the brain.A succession of scientific studies of animals implies that physical activity has a positive effect on mental functioning.
"It's clear that the brain benefits from exercise,"says brain scientist William Greenough of the University of Illinois at Urbana-Champaign.His studies with rats have demonstrated two primary effects of activity:Vigorous physical exercise provides the brain with more fuel,and skill-based ex-ercise increases the formation of connections in the brain, which, according to the proposals of some scientists,may make the brain better able to process information.
In one experiment,laboratory rats were separated into three groups.One group was exercised by running inside an automatic wheel,a second group improved their skills in a complicated obstacle course,and a third group was inactive.
"The animals that learned to go through the obstacle course exhibited a greater number of brain connections than the animals in the exercised or inactive groups,"Greenough said."In contrast, the animals that exercised inside the automatic wheel possessed a greater density of blood vessels in the brain than did either of the other two groups of animals."
Learning a new dance step may boost the brain in the same way that learning a language can, he says.And if the dance is a good physical exercise as well,the benefits multiply.Young brains may be especially able to boost brain power through exercise,suggested another of Greenough's experiments that showed the most significant changes in the brain occurred among rats that had been exercised when very young.And while animals aren't people,he says it is logical to make the inference that an effect found in rats may also apply to humans.
Human studies have focused primarily on older adults and suggest that regular exercise can improve the speed with which the brain processes information.Measurements made by Arthur Kramer at the University of Illinois demonstrated that inactive adults,aged 63 to 82,could hit buttons faster in response to a tone after they went through a 10-week water exercise course.A corresponding control group that didn't exercise showed no improvement.
选项
According to passage,what can not boost the brain?
A:A new dance step.
B:A dance which is a good physical exercise as well.
C:Running on an automatic wheel.
D:Being inactive inside.
答案
D
解析
选项A、B、C中提到的锻炼身体的好处在第一段均提到了,只有D项文中没有提到。因此选择D。
文章第二段第二句提到:高强度体育运动给大脑提供更多的燃料,而技巧性运动则增强大脑神经的联结。依照某些科学家的见解,这种联结能使大脑更好地处理信息。因此选择A项,而B项和C项是技巧性运动的功能,D项不符合文章意思。
文章第三段和第四段告诉我们选项A应该是。nning inside an automatic wheels;选项B文中没有提到是inside还是outside;选项C应该是a great number of brain connections;选项D是正确的。
文章第五段第一句告诉我们“学习一种新的舞蹈和学习一种语言一样,都能促进大脑发展。如果这种舞蹈还是一种良好的体育运动,则益处加倍”,因此A和B项都排除。根据文章第三段和第四段,我们知道只有being inactive inside不能促进大脑发展。
根据文章我们知道选项A里老鼠的实验结果应当可以应用到对人类的研究,因此是错误的;文章第五段告诉我们选项B的表述是正确的;文章第六段告诉我们“经常锻炼能提高大脑处理信息的速度”,但并没有说该实验结果不能应用于其他年龄段的人,因此是错误的;根据文章第二段我们知道两种锻炼对大脑会产生不同的影响,因此选项D也是错误的。
转载请注明原文地址:https://ti.zuoweng.com/ti/Aq9QKKKQ
相关试题推荐
共用题干 TheFatProblemThatMenFaceItisapleasuretoseemenofacertaina...
共用题干 TheFatProblemThatMenFaceItisapleasuretoseemenofacertaina...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 SemcoAt21,RicardoSemlerbecamebossofhisfather'sbusinessinBraz...
共用题干 SemcoAt21,RicardoSemlerbecamebossofhisfather'sbusinessinBraz...
随机试题
疖的致病菌大多为()。 A、绿脓杆菌 B、链球菌 C、金黄色葡萄球菌 D
属于排卵的项目,错误的是 A、排卵前,初级卵母细胞完成第一次减数分裂,成为次级
小张硕士毕业后,准备前往美国自费攻读博士学位。在他取得前往美国的入境签证之前,他
某办公楼建筑,地上28层,地下3层,室外地坪标高为-0.600m,地下三层的
我国目前进行的行政审批制度改革,直接目的是( )。A.权力下放B.转变政府职能C.方便企业和群众D.矫正政府在市场经济中的错位、缺位和越位
显示多生牙、埋伏牙的位置、牙根病变、腭裂间隙等情况,要做A.全曲面断层片B.牙片C.手腕部X线片D.X线头影测量E.咬合片
计算机的内存储器以及外存储器的容量通常是: A.以字节即8位二进制数为单位来表示 B.以字节即16位二进制数为单位来表示 C.以二进制数为单位来表示...
简要介绍几种思想品德课教学情境创设的基本方法。
重大活动的活动特点包括()。A.活动场所简单B.多种活动交织C.活动筹备期长D.社会影响力大E.参与人数众多
能解毒凉血止痢,为治热毒血痢的要药是()。A.板蓝根B.苦参C.半枝莲D.白头翁E.鱼腥草