Evidentiality refers to one of linguistic means realizing interpersonal meanings,and is about the writer's expression of information source along with its reliability.It is helpful for learners to improve their academic writing proficiency through the ex-ploration of interpersonal meanings in academic writing from the perspective of evidentiality.This study takes knowledge source and cognitive ways of evidentials as the research basis,and then examines the features of distribution and use of evidentials in academic writing,hoping to provide pedagogical implications for academic writing.The findings show that the distribution and use of eviden-tials mainly involve how to introduce the topic,articulate the attitudes of others or authors,induce facts and hypothesize proposi-tions;that there are shifted and blended uses of evidentials;and that the reasonable use of evidentials can help learners to explicitly convey attitudes and state the information source.
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