| Discourse markers are a kind of special markers in daily spoken language,it has no conceptual meaning but it has very rich interpersonal and textual function. The study of discourse markers in foreign countries began in the1960’s, and the ontology research of discourse marker was concerned by Chinese scholars in the 80’s. However, discourse marker in the field of teaching Chinese as a foreign language developed relatively slow and the studies about students’ learning and understanding of discourse markers are limited. Based on the existing research results both at home and abroad, 900 minutes of real spoken audio corpus and a large number of test results, this paper attempts to explore the use and study Chinese discourse markers of Southeast Asian students and will start from the four most:(1)Review and summary the research of predecessors,to define discourse markers and turn-taking and explaining the method of investigation.(2)Based on the 900 minutes’ data by Southeast Asian students’ oral speaking,this part will analyse the function of Chinese discourse markers "ranhou" and show the current using situation.(3)Analysis of test results to reveal the level of understanding the discourse markers "ranhou" and current learning situation.(4)The fourth part of the paper will giving suggestions for the overuse of“ranhouâ€in students’ Oral language and solve the contradiction of learning demand and the lack of teaching. |