| This paper mainly from comparative linguistics, error analysis theory, semantics and other theories and methods, from unmarked passive sentence and "bei" sentence which features the verb and semantic features, according to Beijing University to the modern Chinese Corpus CCL ,"Zoning" a word of 282 verbs for the classification, jurisdiction can only enter the unmarked passive sentence verbs , can only enter "bei" sentence verbs, can enter both the two sentence and can not enter both the two sentences. From the perspective of the verb brief analysis why the students misuse unmarked passive sentence to"bei"sentence.In addition, according to the foreign students'error, we dispart unmarked passive sentence into [Np + V] sentence and [Na + Np+ V] sentence, and two were investigated sentence recipient of the subject. From that we draw: a life term can enter the unmarked passive sentence. In unmarked passive sentence of [Np + V] sentence, when the subject is no life term, is generally not possible add to "bei" become "bei" sentence; when the subject is a life term, can add to "bei" become "bei" sentence. In unmarked passive sentence of [Na + Np+ V] sentence, can generally add to "bei" become "bei" sentence, after become "bei" sentence the words become more natural. In certain circumstances, unmarked passive sentence and "bei" sentence can be interchangeable, and both of these sentences are able to accepted by native speaker. This is why the students misuse unmarked passive sentences to"bei"sentence.In the above analysis, we analysis students'(including primary, advanced) error in the process of using unmarked passive sentence according to the corpus of Korean students. As well as a larger share of the three major error– the error of adding "bei", the error of misuse"suffer + (O) + V" to "bei+ (O) +suffer + V" and the error of misuse verbs, we carried out a detailed analysis and description of the emerging phenomenon of error and the general tendency, analyzing the reasons for the error, find the corresponding teaching strategies. To solve the problem of Korean students misuse unmarked passive sentence to "bei" sentence, we also bring forward the idea of teaching from the teaching materials and teaching in particular. |