2. 考研
  3. From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When

From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When

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问题    From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When humans first 【C1】______  , they were like newborn children, unable to use this 【C2】______  tool. Yet once language developed, the possibilities for human kind’s future 【C3】______  and cultural growth increased.
   Many linguists believe that evolution is 【C4】______  for our ability to produce and use language. They 【C5】______  that our highly evolved brain provides us 【C6】______  an innate language ability not found in lower 【C7】______  . Proponents of this innateness theory say that our 【C8】______  for language is inborn, but that language itself develops gradually, 【C9】______  a function of the growth of the brain during childhood. Therefore there are critical 【C10】______  times for language development.
   Current 【C11】______   of innateness theory are mixed, however, evidence supporting the existence of some innate abilities is undeniable. 【C12】______  , more and more schools are discovering that foreign languages are best taught in 【C13】______  grades. Young children often can learn several languages by being 【C14】______  to them, while adults have a much harder time learning another language once the 【C15】______  of their first language have become firmly fixed.
【C10】______
选项 A、ideological
B、biological
C、social
D、psychological
答案B
解析 此句意思是：语言的发展有一个关键期，人体的成长是生物变化的过程。biological生物的；ideological思想上的；social社会的；psychological心理的。故选B项。
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