“Bu De Bu” is a language structure frequently used in Chinese, while the frequency of the foreign students using it is much higher than that of the native speakers. According to the survey, while using it, mistakes often occur, including grammatical mistakes as well as semantical ones, which can be divided into two large groups and seven different types. Therefore, in order to largely reduce the mistakes occurring while using the structure “ Bu De Bu ”, it is feasible to strengthen its usage by pointing out these different types of mistakes both by the teachers at class and in the explanatory notes of the textbooks.
Ⅰ. 引言
Ⅱ. 语料选取及相关说明
Ⅲ. “不得不”偏误统计及分析
Ⅳ. 教学现状考察及教学建议
Ⅴ. 结论