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

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

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问题      From childhood to old age, we all use language as a means of broadening our knowledge 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 innate- ness 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 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 is necessary 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.
【C4】
选项 A、responsible
B、reliable
C、available
D、essential
答案A
解析 形容词词义题。句意为：许多语言学家认为人类的进化对人类创造语言和使用语言的能力起作用。 responsible“作为原由的，有责任的”；reliable“可靠的，可信赖的”；available“可用到的，有空的”；essential“至关重要的”，后面跟to。结合句意可知选项A 符合句意。
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