Shu Yang received her joint Ph.D. degree in linguistics from Sun Yat-sen University and City University of Hong Kong. She is Associate Professor at South China Agricultural University. Her research interests focus on systemic functional linguistics, discourse analysis and foreign language teaching. She has published papers in journals such as Functions of Language and Annual Review of Functional Linguistics. She is currently working on two books on Modality.

• 1. Introduction.- 2. Literature Review.- 3. Systemic Functional Theory Revisited.- 4. A Short Overview of Chinese Lexicogrammar.- 5. The System of Types of Modality.- 6. The System of Realization of Types of Modality.- 7. Realizations of Modality in the Textual Structure of Clause.- 8. Realizations of Modality in the Clause Complex.- 9. Conclusion.

Shu Yang received her joint Ph.D. degree in linguistics from Sun Yat-sen University and City University of Hong Kong. She is Associate Professor at South China Agricultural University. Her research interests focus on systemic functional linguistics, discourse analysis and foreign language teaching. She has published papers in journals such as Functions of Language and Annual Review of Functional Linguistics. She is currently working on two books on Modality.

• 1. Introduction.- 2. Literature Review.- 3. Systemic Functional Theory Revisited.- 4. A Short Overview of Chinese Lexicogrammar.- 5. The System of Types of Modality.- 6. The System of Realization of Types of Modality.- 7. Realizations of Modality in the Textual Structure of Clause.- 8. Realizations of Modality in the Clause Complex.- 9. Conclusion.

Shu Yang received her joint Ph.D. degree in linguistics from Sun Yat-sen University and City University of Hong Kong. She is Associate Professor at South China Agricultural University. Her research interests focus on systemic functional linguistics, discourse analysis and foreign language teaching. She has published papers in journals such as Functions of Language and Annual Review of Functional Linguistics. She is currently working on two books on Modality.

• 1. Introduction.- 2. Literature Review.- 3. Systemic Functional Theory Revisited.- 4. A Short Overview of Chinese Lexicogrammar.- 5. The System of Types of Modality.- 6. The System of Realization of Types of Modality.- 7. Realizations of Modality in the Textual Structure of Clause.- 8. Realizations of Modality in the Clause Complex.- 9. Conclusion.