| Acknowledgements | 第5-6页 |
| Abstract | 第6-7页 |
| 摘要 | 第8-12页 |
| Introduction | 第12-24页 |
| U.S. Immigration Reforms and Their Problems | 第13-16页 |
| Literature Review | 第16-24页 |
| Chapter One A Retrospection of the U.S. Immigration since the 1960s | 第24-35页 |
| 1.1 Towards a Multicultural America | 第24-26页 |
| 1.2 The Immigration and Nationality Act of 1965 | 第26-31页 |
| 1.3 Transnational U.S. Immigration after 1965 | 第31-35页 |
| Chapter Two Threatened by "the Other": U.S. Immigration Reforms after 9/11 | 第35-45页 |
| 2.1 The September 11 Attacks: A Traumatic Experience of America | 第36-38页 |
| 2.2 Security Comes First: The Remedy of the Bush Administration | 第38-40页 |
| 2.3 Illegal Aliens Oriented: Obama's Immigration Reform | 第40-45页 |
| Chapter Three Possible Reasons for Adjusting Immigration Policies | 第45-66页 |
| 3.1 Changes of Political Atmosphere | 第45-50页 |
| 3.1.1 The Rise of Minority Groups in U.S. Politics | 第46-48页 |
| 3.1.2 The Chasm between the Two Parties | 第48-50页 |
| 3.2 Impacts of the Economy | 第50-54页 |
| 3.2.1 The Demand of Job Market | 第51-53页 |
| 3.2.2 The Aftermath of the Financial Crisis | 第53-54页 |
| 3.3 Tensions in Cultural Dimension | 第54-61页 |
| 3.3.1 The Crisis of National Identity | 第56-57页 |
| 3.3.2 The Conflicts between Ethnic Groups | 第57-61页 |
| 3.4 Shocks from International Environment | 第61-66页 |
| 3.4.1 The Continuous Threat of Terrorism | 第62-63页 |
| 3.4.2 The Ongoing Refugee Crisis in Europe | 第63-66页 |
| Chapter Four Future American Immigration Reform: Challenges Ahead | 第66-75页 |
| 4.1 Imbalance between Government and Congress | 第66-68页 |
| 4.2 The Emotion of Anti-Establishment | 第68-71页 |
| 4.3 Controversy over Trump's Current Executive Orders on Immigration | 第71-75页 |
| Conclusion | 第75-77页 |
| Bibliography | 第77-86页 |
