2. 外语
  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 kinds’ future 【C3】______  and culture 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】______  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 arc 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 been firmly fixed.
     【C16】______  some aspects of language are undeniably innate, language does not develop automatically in a vacuum.  Children who have been 【C17】______  from other human beings do not possess language. This demonstrates that 【C18】______  with other human beings unnecessary for proper language developments.  Some linguists believe that this is even more basic to human language 【C19】______  than any innate capacities. These theories view language as imitative, learned behavior. 【C20】______  , children learn language from their parents by imitating them. Parents gradually shape their child’s language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones.
【C10】
选项 A、psychological
B、social
C、biological
D、ideological
答案C
解析 形容词词义题。根据上下文可知，儿童时期是语言发展的大脑生物性的关键期。其他选项与上下文不一致。psychological“心理的”；ideological则是“意识形态方面的”。
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