Forword Abstract Acknowledgements List of Tables Chapter 1 Introduction Chapter 2 Chinese learners' interlanguage knowledge of the English articles: A preliminary study 2.1 Linguistic background 2.1.1 Noun semantics 2.1.2 Classifications of referential meanings of noun phrases 2.2 A preliminary study 2.2.1 Participants 2.2.2 Materials 2.2.3 Procedure 2.2.4 Results 2.3 The research questions of this thesis Chapter 3 Literature review 3.1 Typological differences and L2 article acquisition 3.1.1 Zero contrast and L2 article acquisition 3.1.2 The typological difference of sentence structures and L2 article acquisition 3.1.3 The noun phrase typology and L2 article acquisition. 3.2 Article semantics and L2 article acquisition 3.2.1 Early research 3.2.2 Article semantics and the Article Choice Parameter 3.3 The learner factor and L2 article acquisition 3.3.1 Models of adult second language learning 3.3.2 The adult cognitive learning style 3.4 Summary Chapter 4 Study 1 4.1 Predicted interlingual and intralingual interference 4.2 Methods 4.2.1 Participants 4.2.2 Tasks and procedure 4.2.3 Results and discussion 4.3 Summary Chapter 5 Study 2 5.1 Article semantics revisited 5.2 Methods 5.2.1 Task and procedure 5.2.2 Results and discussion 5.3 Summary Chapter 6 Study 3 6.1 Asymmetry in L2 parameter resetting 6.2 The markedness status of the configurationality and the mass-count parameters 6.3 Negative evidence and frequency of occurrence 6.4 Methods 6.4.1 Materials 6.4.2 Results 6.4.3 Discussion 6.5 Summary Chapter 7 General discussion and conclusion 7.1 Major findings 7.2 General discussion 7.2.1 Input processing in L2 English article acquisition across the three studies 7.2.2 The effect of typological differences 7.2.3 The effect of article semantics 7.2.4 The effect of the learner factor 7.3 Pedagogical implications 7.4 Suggestions for future research Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H Appendix I References