| As one of the main means of expressing the grammatical meaning of Chinese,functional words are extremely important in Chinese.The adverb "dou" as an important function word not only has a high frequency of use,but also has a very complicated meaning and usage.In the past academic circles,the research on the adverb "dou" was mainly focused on the ontology,and the study on the combination of Chinese as a foreign language teaching was very few.However,we often find that Korean students should use "dou",but they have not used it,or misplaced it in the process of communication.Therefore,this study selected Korean intermediate students as objects to make a research and analysis about the errors Korean students made while learning the adverb "dou" in order to be able to find the types of errors and the reasons for errors,hence to find targeted teaching suggestions and make Korean students learn the adverb "dou" better.At the same time,it provides reference for the teaching of adverb "dou".This paper is divided into three parts: introduction;main body;conclusion.In the introduction,significance of topics,research overview,theoretical foundations,research’s methods and the source of corpus were introduced.In the main part of the paper,firstly,we will sort out the general situation of "dou" from three aspects: the meaning of "dou",the type of "dou",and the usage of "dou".Secondly,by designing a questionnaire,we can obtain the biased data that are easily appearing when Korean intermediate students learn to acquire the adverb “dou”,and then perform statistical analysis.Thirdly,combined with the statistical analysis results of the questionnaires,the types of errors in the acquisition of the adverb "dou" by foreign students are summarized,and the causes of the errors are analyzed.Finally,we propose targeted teaching suggestions for the types of errors and the causes of errors.The conclusion part mainly summarizes the conclusions,innovations and deficiencies of the research.Through combining the ontology research and error research of "dou",this paper uses interlanguage theory,error analysis theory,investigation method,comparative analysis method,and error analysis method to design a survey questionnaire for Korean intermediate students.We can obtain the types and causes of the errors,and propose teaching suggestions through the statistical analysis of the corpus.We hope that this research can provide some references for teaching Chinese as a foreign language. |