Abstract

Along with the development of linguistic science, the second language acquisition (SLA) has become an independent subject. Its theory is widely accepted and applied to the foreign language-teaching field. The mark theory, the mother tongue transfer theory, language input theory, cultural introject theory and so on have important enlightenment and the value to the foreign language teaching and the study in vocational colleges and can promote the solution of the present problems.

This work is licensed under a Creative Commons Attribution 4.0 License.