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 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.
  【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 is necessary for proper language development. Some linguists believe that this is even more basic to human language【C19】______than any innate capacities. These theorists 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.
【C13】
选项 A、various
B、different
C、the higher
D、the lower
答案D
解析 此处意思是：越来越多的学校发现在什么年级学外语较容易，根据常识(低年级学外语较容易)以及后文的 Young children often can learn several languages by being 14 to them, while adults...可以选定答案。
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大学英语四级

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