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Learning is an essential process for living things to acquire necessary skills and behaviors. Scientists have already found that
Learning is an essential process for living things to acquire necessary skills and behaviors. Scientists have already found that
admin
2013-11-22
61
问题
Learning is an essential process for living things to acquire necessary skills and behaviors. Scientists have already found that there is a critical period for learning in man and animals. Once the right time for learning a skill or a certain behaviors has passed. This skill or behavior can never be properly learned.
That we speak our own language perfectly and the languages we learn later imperfectly also depends off learning this skill at the right time. The brain develops in such a way that it is ready to learn to speak between the ages of about ten months and ten years. Languages learned later are not spoken perfectly. The ability to speak a language is a mixed motor and sensory skill. It is necessary to hear all the sounds, the subtle differences between similar but not identical sounds, the rhythm and tone of the language. One has also to work tongue, throat, and lips to control breathing. All this has to be managed at one and the same time. From some time after birth until the age of six or seven, normal children all learn this perfectly, and without much difficulty they can learn two or even three languages at the same time, without confusing one with the other. But later, most of us cannot acquire this skill. We may learn to write and read the new language perfectly, but to acquire the right accent and the ability to speak so that no one can detect that the language is not our mother tongue hardly ever occurs.
But those of us who still want to learn foreign languages after these early milestones have been passed need not worry, for though we may not learn to speak a new language like the natives, we know from thousands of examples that we can go off learning languages beyond the age of eighty. There are so many activities adding up to the simple word "learning" that although some of the processes become less efficient with ageing of the brain, our actual experience of learning helps us in learning new materials. Normal social and emotional development probably also needs the correct stimulating at the right time. We can observe evidence of this in those rare cases of children who have been completely neglected from birth. Sometimes illegitimate children in the country—are put away in barns to conceal their existence from the neighbors. They are taught nothing, not even to be house trained or to speak. These children then grow up mentally defective. Even if they are found and rescued by the age of four or five, it is too late. Though they can be taught a lot, their speech is always inadequate and their brains never reach the standards of their brothers or sisters.
What can we learn from the first paragraph about the critical period?
选项
A、It is a point at which the process of learning ends.
B、It is a phase which is crucial to the acquisition of a certain ability.
C、It is a phase after which we do not need to acquire a certain ability.
D、Mans and animals have a similar critical period for a certain ability.
答案
B
解析
推断题。本题定位到第一段最后一句话。从文章可知一旦错过了关键期某种技能和行为就无法真正学会。A项说关键期是一个点是错误的,关键期是一个阶段。C项认为过了关键期我们就不需要学习某种技能了也是错误的。关键期对学习某种技能很重要但是并不是之后就不需要学习了。D项说人与动物学习某种技能的关键期是相似的这点文中没有提到。第二句只是说人和动物都有学习的关键期。故选B。
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大学英语六级
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