9Brown, G. & G. Yule. Discourse Analysis[M]. Beijing: Foreign Language Teaching and Research Press, 2000.
10Garrod, S. & A. Sanford. Bridging Inferences and the Ex- tended Domain of Reference[ G]//J. Long & A. Badde- ley. Attention and Performance IX. Hillsdale: Lawrence Erlbaum, 1981:331-346.