本文试图以关键期假说及史迪芬平克“卓越的代价”观点为基础,揭示对外汉语语音教学中,受学生个人具体情况,如年龄,发音器官,听力器官,及母语与目的语的差异影响,学生汉语语音学习中差异存在的必然性,并指出对外汉语语音教学中,不应过分要求学生习得地道口音,而要通过不断学习减小中介音与目的语语音的差异。 Based on the key period hypothesis and the viewpoints of Steven Finch and “Outstanding Price”, this paper attempts to reveal the differences between individual students in the teaching of Chinese as a foreign language, such as age, vocal organs, hearing organs, and mother tongue and target language It also points out that students should not overindulicit the acquisition of authentic accents in Chinese phonetics teaching for foreigners, but should reduce the difference of phonetics between the intermediate and target languages ​​through continuous learning.