羡余否定是一种特殊的语言现象，它指的是在语言结构上含有“不、没、别、非、未”等否定词，但在实际意义上并不表示否定的表达形式。这种结构在现代汉语中普遍存在，并且具有其独特的语用和文化内涵。羡余否定结构“差点儿没VP”是汉语中的一种特殊语言现象，它体现了形式上含有否定成分但实际上并不表示否定的特点。对于对外汉语教学来说，教材和课堂上虽然会涉及到，但并没有系统的进行设计和教学，学生对于知识点的理解也会浮于表面，从而产生偏误。

Envious negation is a special linguistic phenomenon, which refers to the form of expression that contains negatives such as ‘not, no, don't, don't, not, not, not’ in the linguistic structure, but doesn't indicate negation in the actual meaning. This kind of structure is common in modern Chinese and has its own unique linguistic and cultural connotations. The enviable negative structure ‘差点儿没VP’ is a special linguistic phenomenon in Chinese, which embodies the characteristic of containing a negative element in form but not expressing negation in reality. For the teaching of Chinese as a foreign language, although it is covered in textbooks and classrooms, it is not systematically designed and taught, and the students' understanding of the knowledge will be superficial, which will lead to bias.