本书《汉语母语者第二语言习得成绩的年龄效应研究》是在作者黄怀飞的博士论文的基础上编写而成的。其独到之处在于，它突破了单纯理论思辨的局限，以大量的调查和丰富的数据，对从幼儿园到初中不同年龄段开始学习英语的被试进行学习成效的相关分析，并且证明了自己的假设，即外语学习并不是越小开始越好，最早的适应阶段应当是小学高年级。

Chapter 1 Introduction

 1.1 Research Orientation

 1.2 The Status of Age Effects in Second Language Acquisition

 1.3 Second Language Environment and Foreign Language Instruction Environment

 1.4 Rationale for the Study

 1.5 Key Research Questions

 1.6 Organization of the Book

Chapter 2 Previous Studies on Age Effects in Second Language Acquisition

 2.1 Introduction

 2.2 General Views of the Age Effects in Second Language Acquisition

 2.3 Critical Period Hypothesis in Language Acquisition

2.3.1 The Concept of Critical Period

2.3.2 Critical Period Hypothesis in Language Acquisition

 2.4 Behavioral Studies of CPH in Second Language Acquisition

2.4.1 Introduction

2.4.2 Proponent of CPH in Second Language Achievements

2.4.3 Opponent of CPH in Second Language Achievements

 2.5 Neurological Studies of CPH in Second Language Acquisition

2.5.1 Introduction

2.5.2 Supportive Evidences of CPH in Second Language Achievements

2.5.3 Opposing Evidences of CPH in Second Language Achievements

 2.6 Comments on the Ongoing Controversy About Age Effects in SLA Research

2.6.1 Introduction

2.6.2 Major Problems in Previous Studies of Age Effects in SLA

 2.7 Summary

Chapter 3 Connection Between Previous Researches and This Book

 3.1 Introduction

 3.2 The Definition of Age Effects in This Book

 3.3 Environment Issue of Age Effects Study in Second Language Acquisition

3.3.1 Environment Differences

3.3.2. Previous Studies of Age Effects in Foreign Language Environment

3.3.3 Research Findings of Age Effects Studies Between SL and FL Environment

 3.4 Foreign Language Education in Primary Schools

3.4.1 Foreign Language Education in Primary Schools During 1960s-1970s

3.4.2 Foreign Language Education in Primary Schools Since 1990s

3.4.3 Primary English Education in China

 3.5 Necessity of the Present Study

 3.6 Summary

Chapter 4 Research Design of the Book

 4.1 Introduction

 4.2 Basic Principles for Age Effects Study in FL Enviroment

 4.3 Research Design for Age Effects Study in FL Environment

4.3.1 Participant Issue

4.3.2 Achievement Issue

4.3.3 Research Method Issue

4.3.4 Statistic Measures

 4.4 Summary

Chapter 5 Study One:Relationship Between Ages of Onset and the Short-Term English Achievements by Chinese EFL Learners

 5.1 Introduction

 5.2 Participants

 5.3 Data Description and Collection

 5.4 Data Analysis

5.4.1 Statistics for Junior-3 English Scores

5.4.2 Statistics for Junior-1, Junior-2 English Scores

5.5 Summary

Chapter 6 Study Two:Relationship Between Ages of Onset and Mid-/Long-Term English Achievements

 and Achievements of English Skills by Chinese EFL Learners

 6.1 Introduction

 6.2 Participants

6.2.1 Selection of Senior School Participants

6.2.2 Selection of College Participants

 6.3 Data Description and Collection

 6.4 Data Analysis

6.4.1 Statistics of English Scores in CEE and Scores of CET-4

6.4.2 Statistics for Scores of Listening, Speaking,Reading, Writing in CET-4

 6.5 Summary

Chapter 7 Study Three:Multi-Factor Study of the Differences in Speaking Scores in CET-4 Among Distinct Groups of Ages of Onset

 7.1 Introduction

 7.2 Data Collection and Analysis

7.2.1 Results of ANCOVA

7.2.2 Correlation Analysis

7.2.3 Multiple Regression Analysis

 7.3 Summary

Chapter 8 Discussion and Conclusion

 8.1 Summary of Major Findings

 8.2 General Discussion

8.2.1 Findings Concerning the "Earlier-Is-Better" Notion

8.2.2 Findings Compared to Prior Studies on "Earlier-Is-Better" Notion

8.2.3 Explanations for the Study Findings

8.2.4 Issue of Instructed Time in Age Effects Study

 8.3 Conclusion

Chapter 9 Implications,Limitations,Suggestions for Future Research

 9.1 Educational Implications

 9.2 Limitations of the Present Study

 9.3 Suggestions for Future Research

Appendix 1 Survey Instrument

Appendix 2 Questionnaire for College Students

Appendix 3 Sample Oral Test for CET-4

Appendix 4 Criteria for Oral Test Scoring

Appendix 5 Sampling Figure Table

References

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