It is particularly important for the learner to always retain a st rong interest in the non native language acquisition because of the obstacle pr e set by the native language and the characteristics of long time and long span in language learning.

The author of this article ana- lyzes different stages of children s mother tongue acquisition,sums up the differences and similarities between mother tongue acquisition and foreign language acquisition,points out some common errors made by children and proposes some constructive ideas.

Therefore,it is suggested to learn from mother tongue acquisition the successive factors with a purpose to better our foreign language learning and teaching.

UG which was originated from L1 acquisition study aims to set up a language acquisition model adopted by young learners in different language environment.

Under the Framework of Universal Grammar this article discusses the difference between L1 acquisition of children and foreign language learning of adults in terms of L1 and L2, the learners, the initial state, process and the final state of acquisition; It is hoped that this will bring inspiration for foreign language teaching and learning.

It is very helpful in first language acquisition(FLA) and explains reasonably many practical problems.

This paper discusses the positive relevance between Grammaticalization and First Language Acquisition in two factors: 1)children s acquisition of function words in their first language;2)the grammaticalization features in the process of children s first language acquisition with regard to their linguistic structures.

Based on the assumption that learners internal mental development is the determinant factor in the course of learning,to put foreign language teaching in a solid theory framework,a clear understanding of the differences between child first language acquisition and adult foreign language learning is a must.

This paper tries to interpret the development and features of children′s native language acquisition from the angle of native language acquisition and its development.

This paper aims at studying bilingual teaching from psycholinguistic perspective by employing some principles in children language acquisition.

Some Ideas about Native Language Acquisition and Foreign Language Teaching;

Based on analysis of the theory of native language acquisition and comparison of the differences between first language acquisition and foreign language learning,this paper discusses the enlightenment of native language acquisiton on foreign language learning,and emphasizes that prominence should be given to the cultivation of learners\' linguistic competence in foreign language teaching.