Mingling and Debating Practices of Academic Discourse Exchange

As a widely used concept in humanities and social sciences， “discourse” has been defined differently in different disciplines and by different scholars.This paper，by reviewing these different definitions and then adopting a CDA definition，discusses the association of discourse with the concept of discourse system.It then proposes a discourse approach to academic discourse exchange，highlighting the mingling and debating practices by investigating the discursive strategies in terms of academic norms and language use.