第二语言的习得过程不仅仅是简单的输入输出,它还与诸多因素相关,是一个复杂的心理过程。第二语言习得理论的研究是近几十年来诞生的一个新兴领域,不同的学者对第二语言的习得做了许多研究,他们有的从文化角度切入,有的从心理学角度来探讨,有的从语言学角度出发,形成了各种理论流派。本文将对这些理论成果做一些简单的论述。 The second language acquisition process is not only a simple input and output, it is also related to many factors, is a complex psychological process. The study of second language acquisition theory is an emerging field in recent decades. Different scholars do a lot of research on second language acquisition. Some of them study from the perspective of culture and others from the perspective of psychology Some from the perspective of linguistics, formed a variety of theoretical schools. This article will make some simple expositions on these theoretical achievements.