摘要 

致谢语是日常活动中经常被关注的言语行为，是一种反馈式言语行为，属于社会文化的范畴，理应遵循约定俗成的语用原则。以关联理论为依据，分析美国总统唐纳德·特朗普推特中的致谢语的认知语用特点。希望对英语学习者交际能力的培养有一定的启示意义。

关键词：致谢词；关联理论；推特；认知语用学

Contents       

Introduction 1

1. Literature Review 3

2 Theoretical Foundation 5

2.1 Relevance Theory 5

2.2 Foundation and Features 5

2.3 Current Situation of Researches on Relevance Theory 6

3 Cognitive Pragmatics Characteristics of Donald J.Trump’s Twitter 7

3.1 Creation of the Presupposition 11

3.1.1 Explanation of presuppositional effect 11

3.1.2 Case Analysis 13

3.2 Setting of the Implicature 15

3.2.1 Explanation of Implicature 15

3.2.2 Case Analysis 16

Conclusion 18

References 19

Appendix 21