本文从认知的角度探讨IF条件分句中will+v-Φ的语义,对条件分句中will+v-Φ语义的隐喻化拓展作出合理的解释。隐喻化现象存在于将来时性的条件分句中。当will+v-Φ原有的语法意义不足以表达新的概念时,will+v-Φ通过隐喻模式与其语法意义得到了统一,从而使其语法意义得到了拓展。 This paper explores the semantics of will + v-Φ in IF conditional clauses from a cognitive perspective and makes a reasonable explanation of the metaphorical expansion of the will + v-Φ semantic in conditional clauses. Metaphorical phenomena exist in the conditional clauses of the future. When the original grammatical meaning of will + v-Φ is not enough to express a new concept, will + v-Φ unifies its metaphorical model with its grammatical meaning, so that its grammatical meaning is expanded.