Based on the theories of cognitive transfer and third language acquisition,this paper elaborates the nature and complexity of L1、L2 and L3 s interaction with each other during the language learning process,analyzes the present double foreign languages teaching of our country and discusses the enlightenment of multilingual cognitive transfer on it.

Studies on language transfer in the earlier days mainly involved bilinguals, and only in recent decades, there have been interests in the exploration of cross-linguistic influence in third language acquisition (TLA).

Third language acquisition is a relatively new area of study in the applied linguistics.

The research is to verify by experiment the effectiveness of cognitive approach inidiom acquisition in textbooks for English majors.

On the application of krashen s second language acquisition theory in English listening teaching;

Research into language output of second language acquisition under the frame of constructivism theory;

On Cognitive Orientation of Second Language Acquisition;

The Investigation on the Possibility of Language Acquisition Application in the Context of Chinese College English Teaching;

On the Time-consuming Teaching Method with Low Effect and the Inspiration from Language Acquisition——Thought of the Relationship between Teaching Method and Teaching Aim;

Study on Interlanguage Variability of SLA;

Contextual and Cultural Dimensions in SLA——From the Perspective of Sociolinguistic Approaches;

SLA: A Study of UG and English Elliptical Constructions;