儿童如何获得语法知识一直是语言学领域的重要议题。获得语法知识的一个重要途径是通过分布规律，分布规律在语法学习过程中发挥着重要作用。本研究引入一种全新的语法学习分布机制—分布格模型（distributional lattices），利用分布格理论与方法研究儿童语法习得，将从一个全新的视角描述语法学习过程，从而揭示儿童学习语言的重要机理。 本书包括五个主要内容：第一，回顾儿童语法习得领域的主要理论流派，重点梳理了以乔姆斯基为代表的普遍语法习得机制和哈里斯为代表的分布学习机制。第二，分布格理论为本研究提供了坚实的理论基础。分布格理论来源于数学中的格理论，具有高度抽象性。本研究对分布格理论的核心概念进行梳理，并结合语言学知识建立适合语言习得研究的分布格学习模型。第三，将分布格学习模型运用于词类学习，对英语中各类词类进行精准学习，区分歧义词类。

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
3.Distributional Lattices
3.1 Lattice formalisms
3.1.1 Basic notions
3.1.2 Lattice structures
3.1.3 Applications ofLattice formalisms
3.2 Distributional lattices
3.2.1 Basic notions
3.2.2 Distributional lattice analysis
3.3 Summary
4.Distributional Lattices as a Model fOr Discovering Syntactic Categories in Child-。directed Speech
4.1 Introduction
4.2 Related works
4.3 Distributional lattices in Linguistics
4.4 Experiment
4.4.1 Materials
4.4.2 Learning algorithm
4.4.3 Evaluationprocedures
4.5 Results and Discussions
4.5.1 Hierarchies ofword clusters
4.5.2 Accuracy and completeness
4.5.3 Discussion
4.6 Distributional lattices to lexical ambiguity
4.6.1 Materials andmethods
4.6.2 Results and discussion
4.7 From distributional categories to syntactic categories
4.8 Summary
5.Distributional lattices aS a new model for discovering syntactic structures
5.1 Introduction
5.2 Distributional lattices to phrase structures
5.3 Experiment
5.3.1 Input data
5.3.2 Results
5.3.3 Discussion
5.4 Distributional lattices to complex questions
5.5 Experiment
5.5.1 Input data
5.5.2 Results
5.5.3 Discussion
5.6 Distributional lattices to syntactic structures
5.7 Summary
6.Conclusions
6.1 Main Findings and Significance
6.2 Limitations and Further Studies
References
Appendixes