本文从语言的人际功能视角解读科菲·安南《千年峰会演讲》。该演讲词大量使用具有高量值的责任情态表达方式和表示积极语言的情态动词,这些词语的使用表现了演讲人自身积极主观的责任情态。演讲中由于演讲人的角色不同,其在演讲时所选用的责任情态动词、使用的句式及语气也有所不同。 This article explains Kofi Annan’s “Millennium Summit Speech” from the perspective of interpersonal function of language. The speech uses a large number of modes of accountability with high values ​​and modal verbs that express the active language. The use of these terms shows the speaker’s active subjective responsibility. Because of the different roles of the speaker in the speech, the speech modality and the modalities of the responsible modal verb used in the speech are also different.