Austin's speech act theory, the principle of cooperation in Gricean and Hovland, and others persuaded of the study, this paper basis of the three theoretical.

奥斯汀的言语行为理论、格赖斯的合作原则及霍夫兰等人的劝服性研究，是本文的三个理论基础。

According to Hovland s persuasion model, In order to promote university students change their original attitudes, the university moral educator must improve his credibility and attractiveness.

根据霍夫兰德的说服模型，高校德育工作者要促使大学生的态度改变必须注重自身的形象塑造：一要增强自身的可信度，二要增强自身的吸引力。