本文采用问卷调查的方式 ,对 2 0名英语专业本科四年级学生在交际压力下的话语产出进行研究。对压力下话语产出的不完美性在理论框架下得到解释 ;另外 ,通过对调查结果的分析 ,发现练习在对缓解交际压力方面的作用是不同的 ,并据此提出有效练习和无效练习的观点。此结果对我们的外语口语教学有一定启示 :我们不能一味注重语言学习能力的培养 ,还要注意学生是否具有在压力下正常发挥其语言水平的能力 ,并在教学过程中引导学生作一些有针对性的有效练习 ,而不是重复无效练习。 In this paper, a questionnaire survey is used to study the output of 20 second-year undergraduates of English majors under verbal communication. The imperfection of discourse output under pressure is explained under the theoretical framework. In addition, through the analysis of the survey results, it is found that the practice plays a different role in alleviating the communicative stress and proposes effective and inefficient exercises View. This result has some enlightenment on our foreign language teaching: We can not focus on the cultivation of language learning ability, but also pay attention to whether students have the ability to properly play their language skills under pressure, and in the teaching process to guide students to make some targeted Instead of repeating invalid exercises,