Chapter 1 Introduction
1.1 The Origin of the Topic Selection
1.1.1 Background
1.1.2 Research Basis and Conditions
1.2 The Targeting Problems
1.3 Research Purpose and Significance
1.4 Theoretical Background
1.5 Research Methods
1.6 Structure and Main Content
Chapter 2 Literature Review and Theoretical Framework
2.1 Literature Review
2.1.1 Previous Study of CALL Abroad and at Home
2.1.2 Research Status of Cyber-based Foreign Language Ecological Teaching & Ecological Environment
2.2 Theoretical Framework
2.2.1 CALL
2.2.2 The Relevance Between Information Technology and Foreign Language Teaching and Learning
2.2.3 Cognitivism （ Learning Theory ）
2.2.4 Constructivism （ Learning Theory ）
2.2.5 Ecology Theory
2.3 Research Design
Chapter 3 Overview on Problems in Cyber-based Foreign Language Learners' Environment
3.1 Imbalances of Physical Learning Environment
3.2 Imbalances of Resourceful Learning Environment
3.3 Imbalances of Technological Learning Environment
3.4 Imbalances of Emotional Learning Environment
Chapter 4 Principles for Optimizing Cyber-based Foreign Language Learners' Environment
4.1 Basic Requirements for Its Optimization
4.2 Fundamental Principles for Its Optimization
4.2.1 General and Integrated Effect
4.2.2 Principle of Niche Emphasis
4.2.3 Degree of Resistance
4.2.4 Principle of Expansion and Adaption
4.2.5 Flexible Adaptation and Development
4.2.6 Principle of Growth and Restraint
4.3 Comparison of Two Cyber-based Foreign Language Learners' Environments： Before Optimization and After Optimization
4.3.1 The Learning Environment Before Optimization from the Perspective of Ecological Balance
4.3.2 The Crucial Optimization Principle——Under Ecological Niche Principle to Construct a Harmonious， Dynamic and Flexible Environment
4.3.3 Result After Optimization——An Integrated， Dynamic and Balanced Ecological Learning Environment
4.3.4 Conclusion： the Model of Cyber-based Dynamic and Balanced Foreign Language Learners' Ecological Environment
4.4 Ecological Reflections on Foreign Language Learners' Environment
4.5 Importance of Optimizing Cyber-based Learning Environment
4.5.1 Effective Means to Improve Learners' Learning Efficiency
4.5.2 Important Means to Construct a Harmonious Campus
4.5.3 Crucial Guarantee to Maintain Learners' "Best Niche"
4.5.4 Essential Foundation to Keep Harmonious Coexistence of Teachers and Students
4.5.5 Continual Momentum to Ensure Sustainable Development of Ecological Class
Chapter 5 Empirical Investigations on Constructing and Optimizing Cyber-based Foreign Language Learners' Ecological Environment
5.1 Research Background
5.2 Method
5.3 Object and Content
5.3.1 Object
5.3.2 Content
5.4 Design and Procedure
5.5 Quantitative Data Analysis on Investigation Result
5.5.1 Research Result
5.5.2 Analysis of Investigation Results
5.6 Empirical Investigation of Foreign Language Learning in Optimized Cyber-based Ecological Environment
5.6.1 Optimized Physical Ecological Environment Improving Learning
5.6.2 Optimized Resourceful Ecological Environment Improving Learning
5.6.3 Optimized Technological Ecological Environment Improving Learning
5.6.4 Optimized Emotional Ecological Environment Improving Learning
5.7 Inspiration on Foreign Language Learning from Empirical Research
Chapter 6 Constructing the Model of Foreign Language Learners' Cyber-based Learning Environment
6.1 Characteristics of Cyber-based Learning Ecological Environment
6.1.1 Systematic Integrity
6.1.2 Stable Balance
6.1.3 Dynamic Openness
6.2 Three Interactive Relationships
6.2.1 Teacher-learner Relationship
6.2.2 Learner-learner Relationship
6.2.3 Learner-computer Relationship
6.3 Three Ecological Relationships
6.3.1 Cyber-based Foreign Language Learners' Environment is an Ecosystem
6.3.2 Cyber-based Foreign Language Learners' Environment Has Its Own Ecological Niche
6.3.3 Cyber-based Foreign Language Learners' Environment is an Ecological Environment
6.4 Foreign Language Learners' Cyber-based Learning Environment Model
6.5 Results and Discussion
Chapter 7 Conclusion
7.1 Research Review
7.2 Innovations of the Study
7.2.1 Innovative Study of Optimizing Four Imbalanced Cyber-based Sub-environments
7.2.2 Innovative Study of Constructing an Optimized Ecological Environment Model for Cyber-based Sub-environments
7.3 Limitations of the Study
7.4 Future Prospects
Bibliography
Appendix
