【摘要】 在公文语体中，条件介词“经”的出现频率明显高于“经过”。这主要源于二者语义和功能的差异：“经”多引介具有[+完结]或[+持续]语义特征的行为，所在小句常以行为结果为条件，起传信或建立权威的作用，客观性强；“经过”多引介[+持续]语义特征的行为，侧重表达历时较长、结果来之不易的主观感受，带有评价色彩，主观性较强。二者在公文语体中的语义选择体现了语体对语法的制约，也反映了公文语体重视结果、弱化过程的时间性特征。更多还原

【Abstract】 In official document genre, the conditional preposition jinɡ （经） appears significantly more frequently than jinɡɡuo （经过）. This primarily stems from differences in their semantics and functions: jinɡ often introduces actions with [+completive] or [+durative] semantic features, and the clause in which it appears typically treats the result of the action as a condition, serving to convey evidentiality or establish authority, with strong objectivity. Jinɡɡuo, on the other hand, tends to introduce actions with [+durative] semantic features, emphasizing the subjective impression of a prolonged process or a hard-won outcome, carrying evaluative connotations and exhibiting stronger subjectivity. The semantic selection of these two prepositions in official document genre reflects the constraint of genre on grammar, and also reveals the temporal characteristic of official documents, which prioritize results and downplay processes.更多还原