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Many linguists believe that evolution is __1__for our ability to produce and use language. They claim that our highly evolved brain provides us __2__an innate language abilitynot found in lower organisms. Proponents of this innateness theory say that our __3__for language is inborn, but that language itself develops gradually, asa function of the growth of the brain during childhood. Therefore, there are critical __4__times for language development.
1. A.reliable B.responsible C.available D.accountable
2. A.for B.against C.with D.of
3. A.potential B.preference C.affection D.passion
4. A.psychological B.emotional C.biological D.ideological
【答案详解】
1.B 固定搭配。由空格前“evolution进化”与空格后“our ability to to produce and use language我们创造和使用语言的能力”的对应知可构成固定搭配“be responsible for是……的原因”的B项正确。reliable“可靠的”;available“可获得的”;accountable“有责任的”。
2.C 固定搭配。由空格前“our highly evolved brain 我们高度进化的大脑”与空格后“an innate language ability一种先天的能力”的对应知可构成固定搭配“provide sb. with sth. 向某人提供某物”的C项“with”正确。
3.A 词义辨析。potential “潜能”;preference “偏爱”;affection“喜爱;感情”;passion “激情”。由空格前“an innate language ability一种先天的能力”与空格后“but that language itself develops gradually但是那种语言本身是逐渐发展的”的对应知这里指代“我们的语言潜能”，故A项正确。
4.C 词义辨析。psychological“心理的”;emotional“情感的;激动人心的;情绪激动的”;biological“生物的”;ideological“思想的;意识形态的”。由空格前“asa function of the growth of the brain during childhood作为童年时期大脑发育的一种功能”与空格后“language development语言发育”的对应知“生物的”符合语境，故C项正确。
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