| During the practice of teaching Chinese as a second language, we found that it is difficult for overseas students to learn the concessive complex sentences because of the selection of concessive conjunctions and the match between sentence elements. In the paper,according to the investigation of using concessives complex sentences of Vietnam students,we try to draw the feature of outputting of concessive complex sentences of Vietnam students with different Chinese levels. And then try to give some explanations for the features of outputting of concessive complex sentences from different aspects,such as target of learning foreign language, text books and acquisition.There are four parts in all. The first part is consist of background,method of research,resource of language materials,harvest of research.The second part is about current situation of acquisition about concessive complex sentences in Vietnam students,and the keypiont is low usage,low error rate and simple sentences patterns of concessive complex sentences.In part three,we try to give some explanation for the current situation according to the summarize of error examples extracting from language material of Vietnam students.On the basis of error analysis,in part four some new teaching strategies are proposed to improve teaching method for TCFL. |