［249］ John Haiman:Conditionals are Topics,Language,1978（54）:564-589
［250］ John Haiman:Ritualization and the Development of Language,In W.Pagliuca（ed.）:Perspectives on Grammaticalization,Amsterdam/Philadelphia,John Benjamins Publishing Company,1994.
［251］ He Baozhang: Situation Types and Aspectual Classes of Verbs in Mandarin,Doctoral Dissertation at the Ohio State University,1992.
［252］ Otto Jespersen:《语法哲学》，何勇、夏宁生等译，北京，语文出版社,1988。
［253］ S.A.Thompson:“A Discourse Explanation for the Cross-Linguistic Differences in the Grammar of Interrogation and Negation” ,In Anna Siewierska and Jae Jung Song （eds.）:Case,Typology,and Grammar,Benjamins,1998.