Introduction
1.UG Approaches to Grammar Learning
l.1 UG Approaches
1.2 UG Approaches to Word Types
1.3 UG Approaches to Basic Word Order
1.4 UG Approaches to Complex Sentences
1.5 Evaluation of UG Approaches
2.Distributional Approaches to Grammar Learning
2.1 Harris's Idea of Distribution
2.2 Harris's Ideas in Language Acquisition
2.3 Distribution Approaches to Word Classes
2.4 Distributional Approaches to Complex Sentences
2.5 Evaluation of Distributional Approaches
2.5.1 Philosophical criticisms
2.5.2 The problem of over-generation
2.5.3 Lack of empirical investigation
2.5.4 Counterarguments
2.6 Summary
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