文档介绍：2013年全国大学英语六级完形填空练习题
From childhood to old age,we all use language as a means of broadening our knowledge of ourselves and the world about humans first 1,they were like newborn children,unable to use this once language developed,the possibilities for human kinds future 3and cultural growth increased.
Many linguists believe that evolution is 4for our ability to produce and use 5that our highly evolved brain provides us 6an innate language ability not found in lower of this innateness theory say that our 8for language is inborn,but that language itself develops gradually,9 a function of the growth of the brain during there are critical 10times for language development.
Current 11of innateness theory are mixed,however,evidence supporting the existence of some innate abilities is ,more and more schools are discovering that foreign languages are best taught in children often can learn several languages by being 14to them,while adults have a much harder time learning another language once the 15of their first language have e firmly fixed.
16 some aspects of language are undeniably innate,language does not develop automatically in a who have been 17from other human beings do not possess demonstrates that 18with other human beings isnecessary for proper languag