Acknowledgements
List of Contributors
Introduction
Martin Putz， Rend Dirven and Susanne Niemeier

Section 1： Cognitive approaches to the English tense system
Cognitive linguistics， language pedagogy， and the
English present tense
Ronald W． Langacker
Pretend play： trial ground for the simple present
Jenny Cook-Gumperz and Amy Kyratzis
The relation between experience， conceptual structure
and meaning： non-temporal uses of tense and language
teaching
Andrea Tyler and Vyvyan Evans

Section 2： Facets of prototypes in grammatical constructions
Grammatical constructions and their discourse origins：
prototype or family resemblance？
Paul J． Hopper
Transitivity parameter and prominence typology：
a cross-linguistic study
Sang Hwan Seong

Section 3： Neurocognitive and cognitive issues of
language acquisition in general
Learning syntax - a neurocognitive approach
Sydney M． Lamb
Conceptual primes in early language development
Cliff Goddard
No preposition required． The role of prepositions for the
understanding of spatial relations in language acquisition
Katharina J． Rohlfing
The 'Graded Salience Hypothesis' in second language
acquisition
Istvan Kecskes
Subject Index