8Biber, D. Stig Johansson, Geoffrey Leech, Susan Conrad and Edward Finegan 1999 Longman Grammar ofSpoken and Written English. Pearson Education Limited,外语教学与研究出版社,2009年.
9Campbell L. and Richard Janda 2001 Introduction: conceptions of grammaticalization and their problems. Language Science, 23, pl01.
10Hag6ge C. 2010 Adposition. Oxford University Press.