在职申硕英语考试

【单选题】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 (61) , they were like newborn children, unable to use this (62) tool. Yet once language developed, the possibilities for human kind’s future (63) and cultural growth increaseD、
Many linguists believe that evolution is (64) for our ability to produce and use language. They (65) that our highly evolved brain provides us (66) an innate language ability not found in lower (67) . Proponents of this innateness theory say that our (68) for language is inborn, but that language itself develops gradually, (69) a function of the growth of the brain during childhooD、Therefore there are critical (70) times for language development.
Current (71) of innateness theory are mixed, however, evidence supporting the existence of some innate abilities is undeniable. (72) , more and more schools are discovering that foreign languages are best taught in (73) grades. Young children often can learn several languages by being (74) to them, while adults have a much harder time learning another language once the (75) of their first language have become firmly fixeD、
A．valuable
B．appropriate
C．convenient
D．favorite

网考网参考答案：A
网考网解析：
[解析] 根据语法分析，答案应用来修饰语言的。valuable珍贵的；appropriate合适的，适当的；convenient方便的，便利的；favorite最喜欢的。语言并不是人类选择的结果，而是人类在进化过程中慢慢发展起来的，对人类来说，应当是“珍贵的”。故选A项。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>