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近年来围绕语言习得关键期的假设学术界出现了许多不同观点、重大发现和研究进展。国外学者通过对语言环境受到剥夺的儿童和成年人的研究指出年龄在第一语言习得中发挥着至关重要的作用。同时,年龄问题在二语习得领域的研究中进展得也十分迅速,但是研究者们始终没有达成一致意见。通过对国外第一语言习得和第二语言习得关键期假设研究动态、研究发现和最新进展的分析,本文提出了儿童要尽可能早地开始学习母语,但什么时候开始学习外语可以因学习时间长短、学习目的和动机的不同而因人而异。
In recent years, there have been many different views, major discoveries and research advances on the hypothetical academic circles around the critical period of language acquisition. Foreign scholars’ studies on children and adults deprived of their linguistic environment point out that age plays a crucial role in first language acquisition. At the same time, the problem of age has progressed rapidly in the field of second language acquisition, but researchers have not reached consensus. Through the research on the key period hypotheses of first language acquisition and second language acquisition in foreign countries, the research findings and the analysis of the latest progress, this paper proposes that children should start learning the mother tongue as early as possible, but when to start learning the foreign language can be due to learning The length of time, learning objectives and motivation vary.