| Comparative sentence is one of important and difficult parts of teaching Chinese as a second language.The order of comparative sentence is one of typological parameters to confirm the linguistic type of a language.The basic word order of Tajik language is SOV,the order of comparative sentence of Tajik language is same as the conclusion of Greenberg:standard-adjective;The basic word order of Chinese is SVO, the order of comparative sentence of Chinese is different from the conclusion of Greenberg:standard-adjective.So the word of comparative sentence Tajik is same with and the word of comparative sentence Chinese.The study of corpus and analysis of test reflect how Tajikistan students acquired comparative sentence,then made questionnaire.we found the error of degree adverbs, the error of complement,the error of negative comparative sentence and blends of sentence existed commonly. Because of the complex of the comparative sentence,students think it is hard to acquire comparative sentence. Errors caused by overgeneralization of target language and the mother language negative transfer.For the errors and reasons,firstly,we should correct view of errors.secondly, teachers must understand all the grammar of comparative sentence and forecast students’ errors.During the learning process, summarize different sentences timely will help students grasp the difference between various sentence.For the students,think positively and well know difference between mother language and Chinese language can minimize the negative transfer of mother language. |