| 摘要(Abstract in Chinese) | 第6-16页 |
| Abstract | 第16页 |
| Acknowledgements | 第18-30页 |
| Abbreviations | 第30-31页 |
| Chapter 1 Introduction | 第31-92页 |
| 1.1 Definitions of evidentiality | 第31-35页 |
| 1.1.1 Evidentiality in narrow sense | 第33页 |
| 1.1.2 Evidentiality in broad sense | 第33-34页 |
| 1.1.3 Working definition of evidentiality in this study | 第34-35页 |
| 1.2 Rationale of the study | 第35-72页 |
| 1.2.1 Why study evidentiality? | 第35-38页 |
| 1.2.2 Why study evidentiality in journal research articles? | 第38-49页 |
| 1.2.2.1 Research articles | 第38-41页 |
| 1.2.2.2 Previous empirical studies on evidentiality | 第41-48页 |
| 1.2.2.3 Limitations of previous studies on evidentiality | 第48-49页 |
| 1.2.3 Why from the cognitive functional perspective? | 第49-72页 |
| 1.2.3.1 Previous approaches to evidentiality | 第50-67页 |
| 1.2.3.2 Limitations of previous approaches on evidentility | 第67-72页 |
| 1.3 Objectives and research questions | 第72-74页 |
| 1.4 Methodology and data source | 第74-84页 |
| 1.4.1 The corpora | 第74-76页 |
| 1.4.2 Annotation method | 第76-78页 |
| 1.4.3 Analytical procedure | 第78-84页 |
| 1.5 Originality of this study | 第84-87页 |
| 1.6 Organization of the dissertation | 第87-92页 |
| Chapter 2 Literature Review | 第92-162页 |
| 2.1 Classification of evidentiality | 第92-101页 |
| 2.1.1 Previous studies on classifications of evidentiality | 第93-98页 |
| 2.1.2 Classification of evidentiality of this study | 第98-101页 |
| 2.2 Lexico-grammatical realizations of evidentials | 第101-150页 |
| 2.2.1 Direct evidentials | 第103-111页 |
| 2.2.1.1 Visual evidentials | 第104-105页 |
| 2.2.1.2 Non-visual evidentials | 第105-111页 |
| 2.2.2 Indirect evidentials | 第111-127页 |
| 2.2.2.1 Inferred evidentials | 第113-118页 |
| 2.2.2.2 Reported evidentials | 第118-127页 |
| 2.2.3 Evidential strategies | 第127-144页 |
| 2.2.3.1 Irrealis moods | 第129-132页 |
| 2.2.3.2 Perfect tenses | 第132-133页 |
| 2.2.3.3 Passives | 第133-134页 |
| 2.2.3.4 Complementation | 第134-135页 |
| 2.2.3.5 Person-marking | 第135-136页 |
| 2.2.3.6 Quotations | 第136-144页 |
| 2.2.4 Evaluative evidentials | 第144-150页 |
| 2.2.4.1 Good-bad parameters | 第144-145页 |
| 2.2.4.2 Certainty parameters | 第145-146页 |
| 2.2.4.3 Expectedness/obviousness parameters | 第146页 |
| 2.2.4.4 Importance/relevance parameters | 第146-150页 |
| 2.3 Evidentiality and other grammatical and semantic categories | 第150-159页 |
| 2.3.1 Evidentiality and subjectivity | 第150-151页 |
| 2.3.2 Evidentiality and affect | 第151-152页 |
| 2.3.3 Evidentiality and stance | 第152-153页 |
| 2.3.4 Evidentiality and hedge | 第153页 |
| 2.3.5 Evidentiality and evaluation | 第153-154页 |
| 2.3.6 Evidentiality and appraisal | 第154-155页 |
| 2.3.7 Evidentiality and epistemic modality | 第155-159页 |
| 2.4 Summary | 第159-162页 |
| Chapter 3 Theoretical Framework | 第162-227页 |
| 3.1 Cognitive functional linguistics | 第162-164页 |
| 3.2 Relevance theory | 第164-172页 |
| 3.2.1 Cognitive effects | 第166-168页 |
| 3.2.1.1 Contextual strengthening | 第166-167页 |
| 3.2.1.2 Contextual contradiction and elimination | 第167-168页 |
| 3.2.1.3 Contextual implication | 第168页 |
| 3.2.2 Cognitive principles of relevance | 第168-170页 |
| 3.2.3 Communicative principle of relevance | 第170-172页 |
| 3.3 Subjectivity | 第172-195页 |
| 3.3.1 Perspective space | 第176-182页 |
| 3.3.1.1 Direct mode | 第177-178页 |
| 3.3.1.2 Indirect mode | 第178-179页 |
| 3.3.1.3 Free indirect mode | 第179-180页 |
| 3.3.1.4 Implicit perspectives | 第180-182页 |
| 3.3.2 Epistemological stance | 第182-195页 |
| 3.3.2.1 Personal experience epistemological stance | 第185-186页 |
| 3.3.2.2 Inferential epistemological stance | 第186-188页 |
| 3.3.2.3 Reportive epistemological stance | 第188-190页 |
| 3.3.2.4 Factuality epistemological stance | 第190-191页 |
| 3.3.2.5 Imaginative epistemological stance | 第191-195页 |
| 3.4 Metadiscourse | 第195-203页 |
| 3.4.1 Textual and interpersonal functions of metadiscourse | 第198-200页 |
| 3.4.2 Metadiscourse and genre | 第200-203页 |
| 3.5 Discourse community | 第203-209页 |
| 3.5.1 Audience | 第205-208页 |
| 3.5.2 Context | 第208-209页 |
| 3.6 Conceptual blending theory | 第209-216页 |
| 3.6.1 A basic diagram of conceptual blending | 第211-212页 |
| 3.6.2 Online meaning construction based on conceptual blending theory | 第212-216页 |
| 3.7 Analytical frameworks for the current study | 第216-225页 |
| 3.7.1 A four-element model of functions of evidentiality in RAs | 第216-221页 |
| 3.7.2 Cognitive mechanism of lexico-grammatical realizations of evidentiality | 第221-223页 |
| 3.7.3 Cognitive mechanism of online meaning construction of evidentiality | 第223-225页 |
| 3.8 Summary | 第225-227页 |
| Chapter 4 Frequency and Distribution of Evidentiality | 第227-257页 |
| 4.1 Frequency of evidentiality | 第227-234页 |
| 4.1.1 Frequencies of direct evidentials | 第227-228页 |
| 4.1.2 Frequencies of indirect evidentials | 第228-230页 |
| 4.1.3 Frequencies of evidential strategies | 第230-231页 |
| 4.1.4 Frequencies of evaluative evidentials | 第231-233页 |
| 4.1.5 Frequencies of evidentiality in RAs | 第233-234页 |
| 4.2 Distribution of evidentiality across generic structures | 第234-253页 |
| 4.2.1 Generic structures of RAs | 第235-241页 |
| 4.2.1.1 Abstract section | 第236-237页 |
| 4.2.1.2 Introduction section | 第237-238页 |
| 4.2.1.3 Discussion section (conclusion included) | 第238-241页 |
| 4.2.2 Distribution of evidential types across generic structures | 第241-253页 |
| 4.2.2.1 Direct evidentials and generic structures of RAs | 第241-243页 |
| 4.2.2.2 Indirect evidentials and generic structures of RAs | 第243-246页 |
| 4.2.2.3 Evidential strategies and generic structures of RAs | 第246-249页 |
| 4.2.2.4 Evaluative evidentials and generic structures of RAs | 第249-250页 |
| 4.2.2.5 Evidentiality and generic structures of RAs | 第250-253页 |
| 4.3 Summary | 第253-257页 |
| Chapter 5 Interpersonal Functions of Evidentiality | 第257-306页 |
| 5.1 Evidentiality as a promotion strategy | 第258-267页 |
| 5.1.1 Evidentiality and promotional nature of RAs | 第258-260页 |
| 5.1.2 Promotional function of direct evidentials | 第260-262页 |
| 5.1.3 Promotional function of indirect evidentials | 第262-264页 |
| 5.1.4 Promotional function of evidential strategies | 第264-266页 |
| 5.1.5 Promotional function of evaluative evidentials | 第266-267页 |
| 5.2 Evidentiality as metadiscourse | 第267-280页 |
| 5.2.1 Evidentiality as interpersonal metadiscourse | 第269-276页 |
| 5.2.2 Evidentiality as textual metadiscourse | 第276-280页 |
| 5.3 Evidentiality 沒s author identity ;ndexing strategy | 第280-297页 |
| 5.3.1 Evidentiality and author's credibility | 第282-289页 |
| 5.3.2 Evidentiality and balance between author's authority and solidarity | 第289-294页 |
| 5.3.3 Evidentiality and author's responsibility | 第294-297页 |
| 5.4 Evidentiality as the stimulus of relevance | 第297-304页 |
| 5.4.1 Direct evidentials as the stimulus of relevance | 第298-299页 |
| 5.4.2 Indirect evidentials as the stimulus of relevance | 第299-300页 |
| 5.4.3 Evidential strategies as the stimulus of relevance | 第300-303页 |
| 5.4.4 Evaluative evidentials as the stimulus of relevance | 第303-304页 |
| 5.5 Summary | 第304-306页 |
| Chapter 6 Cognitive mechanism of lexico-grammatical realizations of evidentiality | 第306-327页 |
| 6.1 Evidentiality and epistemological stance | 第307-313页 |
| 6.1.1 Evidentiality and personal experience epistemological stance | 第308-309页 |
| 6.1.2 Evidentiality and inferential epistemological stance | 第309-310页 |
| 6.1.3 Evidentiality and reportive epistemological stance | 第310-311页 |
| 6.1.4 Evidentiality and factuality epistemological stance | 第311-313页 |
| 6.2 Evidentiality and perspectives | 第313-317页 |
| 6.2.1 Evidentiality and direct mode | 第313-315页 |
| 6.2.2 Evidentiality and indirect mode | 第315页 |
| 6.2.3 Evidentiality and implicit perspective | 第315-317页 |
| 6.3 Evidentiality and discourse community | 第317-319页 |
| 6.4 Evidentiality and genre | 第319-320页 |
| 6.5 Lexico-grammatical realizations of evidentiality | 第320-326页 |
| 6.6 Summary | 第326-327页 |
| Chapter 7 Cognitive Mechanism of the Online Meaning Construction of Interpersonal Meanings of Evidentiality | 第327-348页 |
| 7.1 Online meaning construction of interpersonal meanings of evidentiality | 第333-336页 |
| 7.2 Online meaning construction of evidentiality as promotion strategy | 第336-338页 |
| 7.3 Online meaning construction of evidentiality as metadiscourse | 第338-340页 |
| 7.4 Online meaning construction of evidentiality as author identity indexing strategy | 第340-342页 |
| 7.5 Online meaning construction of evidentiality as the stimulus of relevance | 第342-344页 |
| 7.6 Summary | 第344-348页 |
| Chapter 8 Conclusions and implications | 第348-361页 |
| 8.1 Summary of major findings | 第348-354页 |
| 8.2 Significance of current study | 第354-357页 |
| 8.3 Pedagogical and research implications | 第357-358页 |
| 8.4 Limitations and suggestions for future research | 第358-361页 |
| References | 第361-373页 |
| Appendices | 第373-402页 |
