互动在第二语言学习中备受关注。互动理论可以分为认知互动和社会文化互动。二者皆以互动冠名,但二者在语言观、环境观、语言学习观、语言学习者观、研究方法以及哲学渊源等方面大相径庭。认知互动论和社会文化互动论可以开展对话,取长补短。在互动研究中,既关注学习者的认知机制和语言信息处理过程,又注重社会历史文化因素对认知过程和语言发展的作用;既研究学习者语言体系的发展,又探讨学习者会话的动态过程。 Interaction is a concern in second language learning. Interactive theory can be divided into cognitive interaction and social-cultural interaction. Both of them are named by interaction, but the two are very different in terms of language concept, environmental concept, language learning concept, language learners’ concept, research methods and philosophical origins. Cognitive interaction theory and social-cultural interaction theory can develop dialogue and learn from each other. In the interactive research, we not only pay attention to learners’ cognition mechanism and language information process, but also pay attention to the function of social history and culture on cognitive process and language development. They not only study the development of learner’s language system, but also discuss learner’s conversation Dynamic Process.