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 human 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 with an【C6】______language ability not found in lower organisms. Supports of this innateness theory say that our【C7】______for language is inborn, but that language itself develops gradually, as a function of the growth of the brain during childhood. Therefore there are critical【C8】______times for language development.
    Current【C9】______of innateness theory are mixed; however, evidence【C10】______the existence of some innate abilities is undeniable. Indeed, more and more schools are discovering that foreign languages are best taught in【C11】______grades. Young children often can learn several languages by being【C12】______to them, while adults have a much【C13】______time learning another language once the rules of their first language have become firmly fixed.
    【C14】______some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been【C15】______from other human beings do not possess language. This demonstrates that 【C16】______with other human beings is necessary for proper language. Some linguists believe that this is even more basic to human language 【C17】______than any innate capacities. These theorist view language【C18】______imitative, learned behavior. 【C19】______children learn language form their parents by imitating them. Parents gradually shape their child’s language skills by 【C20】______reinforcing precise imitations and negatively reinforcing imprecise ones.
【C4】
选项 A、essential
B、available
C、reliable
D、responsible
答案D
解析 本题为固定搭配。be responsible for为固定短语，表示“对……负责，是……的缘由”。其他选项均不能与for搭配。这句话为“许多语言学家认为进化使人们产生和具备了语言的能力。”D项为正确选项。
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