The purpose of this study is to discuss and compare two approaches to using linguistic universals in the explanation of second language acquisition. The first approach is "Universal Grammar approach" within which the notions of parametric variation and markedness have been applied to second language acquisition. The second approach is "typological approach" which used the notion of implication to explain universals in second language acquisition. It is suggested that both the UG and the typological approach make many of the same fundamental assumptions about the nature of interlanguage and how such data are to be explained and that two approaches make different claims as to whether the grammars of primary languages and interlanguages are identical with respect to universals. More evidences are needed to decide which approach is better in explaining universals in second language acquisition.

• 여경희