“师母”和“师丈”这两个对位的称谓由于选择的指示视点不同,造成二者的生成机制不同。语言系统和言语交际中都需要“师丈”这一称谓,并有其存在的历史基础和现实基础,但这个称谓并没有通行。其原因是场景优先原则发挥了正向作用,而语言优先原则发挥了负向作用。本文提出解决这一矛盾的方案,希望对这一尴尬处境能有所帮助。 The two appellations such as “mother-in-law” and “teacher-in-law” have different mechanism of formation due to the different points of view of the choices. The language system and verbal communication both need the title of “teacher”, and have their historical basis and realistic basis, but the title does not pass. The reason is that the principle of scene priority has played a positive role, while the principle of language priority has played a negative role. This paper puts forward a solution to this contradiction, hoping to help this awkward situation.