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  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 bask-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 sills by positively reinforcing precise imitations and negatively reinforcing imprecise ones.
【C14】
选项 A、reveal
B、exposed
C、engaged
D、involved
答案B
解析 A．reveal揭示，展现，启示；B．exposed使……处于作用／影响下，使暴露，接触；C．engaged使订婚，约定，保证，使忙于；D．involved涉及，卷入。根据词义辨析及句意可知，选B正确。注意这些动词的各自常用句型：reveal…to sb．对……泄露……；be exposed to暴露在……的面前，处于……的影响／作用下；be engaged to…与……订婚；engage oneself to do承诺做……；be engaged in…从事……，忙于……；beinvolved in卷入……，专心于……。
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