在二语习得研究领域,很多研究者提出了一系列二语习得模式,并描述二语习得如何产生,以及为这些二语习得机制提供解释。克拉申的控制论模式是其中最全面和最具争议的一个。本论文将客观展示其重要观点的认识,对此理论的评价,以此为基础探索其对外语教学的启示作用。 In the field of second language acquisition research, many researchers have proposed a series of second language acquisition patterns and described how second language acquisition can be generated and the explanations for these second language acquisition mechanisms. Krashen’s cybernetic model is one of the most comprehensive and controversial. This dissertation will objectively demonstrate the understanding of its important points of view and evaluate the theory as a basis to explore its enlightenment on foreign language teaching.