For its contributions to the study of the acquisition order the Teachability Hypothesis enriches the SLA theory and is of pedagogical significance as well.
可教性假设对语言习得顺序的解释丰富了第二语言习得理论，具有现实的教育学意义。
This study is based on a theoretical hypothesis that the acquisition order of a multi - meaning adverb parallels with its grammaticalization order, and thus can be predicted according to the latter.
本文的研究建立在这样的理论假设之上：多义副词的语法化顺序和习得顺序在很大程度上是一致的，可以根据语法化顺序预测习得顺序。
This paper is an attempt to analyze critically the "Natural Acquisition Order" theory on the basis of its origin, research focus and methods.
本文介绍了第二语言习得中自然习得顺序的由来、研究的内容和方法，指出了自然习得顺序理论的七个疑点。
This paper is an attempt to analyze critically the "Natural Acquisition Order" theory on the basis of its origin, research focus and methods.
本文介绍了第二语言习得中自然习得顺序的由来、研究的内容和方法，指出了自然习得顺序理论的七个疑点。
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