Is language, like food, a basic human need? Judging from the result of the violent experiment by a German King, Frederick II, in

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问题     Is language, like food, a basic human need? Judging from the result of the violent experiment by a German King, Frederick II, in the 13th century, it may be. Hoping to discover what language a child would speak if he heard no mother tongue, he told the nurses to keep silent.
    All the infants died before the first year. But clearly there was more than language deprivation here. What was missing was good mothering. Without good mothering, in the first year of life especially, the capacity to survive is seriously affected.
    Today no much violent deprivation exists as that by Frederick II. Nevertheless, some children are still backward in speaking. Most often the reason for this is that the mother is insensitive to the signals of the infant, whose brain is programmed to map up language rapidly. There are critical times, it seems, when children learn more readily. If these sensitive periods are neglected, the ideal time for acquiring language skills passes and they might never be learned so easily again.
    Linguists(语言学家)suggest that speech stages are reached in a fixed sequence and at a constant age, but there are cases where speech has started late in a child who eventually turns out to be of high IQ.
    Recent evidence suggests that an infant is born with the capacity to speak. What is special about Man’s brain, compared with that of the monkey, is the complex system which enables a child to connect the sight and feel of, say, a teddy-bear(玩具熊)with the sound pattern "teddy-bear".
    But speech has to be stimulated, and this depends on interaction between the mother and the child, where the mother recognizes the signals in the child’s babbling(牙牙学语), grasping, crying, smiling, and responds to them . Insensitivity of the mother to these signals dulls the interaction because the child gets discouraged and sends out only the obvious signals.
    Sensitivity to the child’s non-verbal signals is essential to the growth and development of language.
The reason some children are backward in speaking today is that______.

选项 A、their mothers do not respond to their attempts to speak
B、their mothers are not intelligent enough to help them
C、they do not listen carefully to their mothers
D、their brains have to absorb too much language at once

答案A

解析 本题属于事实细节题,提问的是根据今天的研究发现,有些孩子语言能力落后的原因是什么。根据文章第三段第二、三句话“Nevertheless,some children are still backward in speaking.Most often the reason for this is that the mother is insensitive to the signals of the infant,whose brain is programmed to map up language rapidly”,有些孩子语言能力落后的原因是他们的母亲对他们发出的一些信号不敏感,也就是说当孩子们试图说话时母亲并没有做出回应。选项A)符合文章意思,故应为正确答案。
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