作为中介语重要特征之一的语用失误在一定程度上影响着交际的顺利进行。文中作者将其成因归结为四点:语言禁忌的违反,中西方风俗习惯的不同,对谈话对象社会地位的忽视以及部分教材的误导。完全克服语用失误现象绝非易事,英语教育工作者应通过言语实践不断总结经验,努力探索出理想的途径。 Pragmatic failure as one of the important features of interlanguage affects the smooth progress of communication to a certain extent. The author attributed the causes to four points: the contradiction of language taboo, the difference between Chinese and Western customs, the disregard of social status of the object of conversation and the misleading of some teaching materials. Completely overcome the pragmatic failure is not easy, English educators should continue to sum up experience through verbal practice, and strive to explore the ideal way.