Based on the politeness theory put forward by Brown and Levinson, this thesis analyzes the positive politeness strategies employed in the ten PIAs after the Second World War.

• 以佩内洛普·布朗和史蒂芬·列文森提出的礼貌理论为基础,语料为十篇发表于二战后的美国总统就职演说,本文分析了积极礼貌策略在美国总统就职演说中的运用。