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
Why Don’t Babies Talk Like Adults? Over the past half-century, scientists ha...
Why Don’t Babies Talk Like Adults? Over the past half-century, scientists ha...
admin
2020-12-24
30
问题
Why Don’t Babies Talk Like Adults?
Over the past half-century, scientists have settled on two reasonable theories related to babytalk. One states that a young chilcTs brain needs time to master language, in the same way that it does to master other abilities such as physical movement. The second theory states that a chilcTs vocabulary level is the key factor According to this theory, some key steps have to occur in a logical sequence before sentence formation occurs. Children^ mathematical knowledge develops in the same way.
In 2007,researchers at Harvard University, who were studying the two theories, found a clever way to test them. More than 20,000 internationally adopted children enter the U. S. each year. Many of them no longer hear their birth language after they arrive, and they must learn English more or less the same way infants do — that is,by listening and by trial and error. International adoptees don’t take classes or use a dictionary when they are learning their new tongue and most of them don’t have a well-developed first language. All of these factors make them an ideal population in which to test these competing hypotheses about how language is learned.
Neuroscientists Jesse Snedeker, Joy Geren and Carissa Shaft。studied the language development of 27 children adopted from China between the ages of two and five years. These children began learning English at an older age than US natives and had more mature brains with which to tackle the task. Even so, just as with American-born infants, their first English sentences consisted of single words and were largely bereft (缺乏的)of function words, word endings and verbs. The adoptees then went through the same stages as typical American_born children, though at a faster clip. The adoptees and native children started combining words in sentences when their vocabulary reached the same sizes, further suggesting that what matters is not how old you are or how mature your brain is, but the number of words you know.
This finding — that having more mature brains did not help the adoptees avoid the todd-ler-talk stage — suggests that babies speak in babytalk not because they have baby brains, but because they have only just started learning and need time to gain enough vocabulary to be able to expand their conversations. Before long, the one-word stage will give way to the two-word stage and so on. Learning how to chat like an adult is a gradual process.
But this potential answer also raises an even older and more difficult question. Adult immigrants who learn a second language rarely achieve the same proficiency in a foreign language as the average child raised as a native speaker. Researchers have long suspected there is a “critical period” for language development, after which it cannot proceed with full success to fluency. Yet we still do not understand this critical period or know why it ends.
Snedeker, Geren and Shafto based their study on children who_
选项
A were finding it difficult to learn English
B had come from a number of language backgrounds
C were learning English at a later age than US children
D had taken English lessons in China
答案
C
解析
第三段提到 “These children began learning English at an older age than US natives and had more mature brains with which to tackle the task”,说明这些孩子比美国本土的孩子学 英语要晚^^旦有着更成熟的处理问题的头脑,所以答案是C。
转载请注明原文地址:https://ti.zuoweng.com/ti/ubEQKKKQ
相关试题推荐
UsingHIVVirustoCureCancer Scientistsareplanningtousehumanimmunode...
UsingHIVVirustoCureCancer Scientistsareplanningtousehumanimmunode...
UsingHIVVirustoCureCancer Scientistsareplanningtousehumanimmunode...
UsingHIVVirustoCureCancer Scientistsareplanningtousehumanimmunode...
Thosescientistsarestudyingonhowtoharnesstheenergyofthewind.()A.creat
CitizenScientists Understandinghownaturerespondstoclimatechangewill...
CitizenScientists Understandinghownaturerespondstoclimatechangewill...
CitizenScientists Understandinghownaturerespondstoclimatechangewill...
IntelligentMachines 1Medicalscientistsarealreadyputtingcomputerchips...
共用题干 第三篇CitizenScientistsUnderstandinghownaturerespondstoclimatechang...
随机试题
保证收益理财计划的起点金额是( )。
下列关于彝族民俗文化的表述,正确的是()。
子曰:“始吾于人也,听其言而信其行;今吾于人也,听其言而观其行。于予与改是。”这
关于工程建设项目是否必须招标的说法,正确的是( )。(2015)
患者,男性,70岁。冠心病史10余年,冠状动脉造影检查后出现恶心、食欲缺乏。尿量
某县医院妇产科医师欲开展结扎手术业务,按照规定参加了相关培训。培训结束后,有关单
关于企业物流管理目标的说法,正确的是()。
以( )为标志,学前教育理论从普通教育学中分化出来。由笼统的认识到建立起独立的范畴与体系,成为一门独立的学科。A.福禄倍尔B.亚里士多德C.杜威D.柏拉图
当今社会的小学教育,出现了对儿童教育“成人化”的趋势,这一现象违背了个体身心发展的()规律。A.不平衡性B.顺序性C.阶段性D.互补性
城镇体系的规模等级结构规划应当建立在()的基础上。A:区域整体规划B:地域城市化水平的预测C:城镇合理发展规模的预测D:地域经济结构分析E:中心城市