【正确答案】 1、A    

【答案解析】从Arthur Dennis所说的第一句话We learn our first language not for any other reason than solving problems(communicating is a problem，and we develop，our patterns to do so)，when we have“covered”that need we don't go further，unless we have an extra need(it could be the desire of having more languages)可判断出他的观点：有学习外语的需要才会有学习外语的动力。