论文答辩是展示你对论文主题的深入了解和专业知识的机会。通常，答辩会持续一至两个小时，这取决于你的研究领域。首先你要陈述你的研究、发现和结论。完成陈述之后，委员会成员会问你一些问题，这些问题不仅基于你的陈述，还将基于你的书面论文。最后，委员会可能会批准你的论文或者提出论文修改建议。我们总结了一些留学生论文答辩的常见问题，有需要的同学可以看一看哟。

1、你的研究是关于什么的？

你应该用几句话总结你的研究。这个问题很简单，但需要专业技术知识来更好地解释概念。例如，如果你完成了一篇论文，试图解释宇宙中暗物质的组成和粒子加速器，你可以这样设计你的答案：

In this research,the different aspects of dark matter and its detection models have been investigated. The cosmic ray positron excess observed by the pAMELA detector has been discussed and explained through the construction of models of decaying dark matter. The cosmic-ray electron and positron spectra were studied assuming a general Dirac structure for the four fermion contact interactions of interest. A supersymmetric leptophilic Higgs model was constructed to explain the possible excess of gamma rays in the galactic center. Finally,by the use of Razor analysis,an improvement on the dark matter collider searches is considered.

2、你为什么选择这项研究？

这个问题要求你回答最初是什么激励你选择这项研究。你的答案可能会触及到你对该研究领域的兴趣。例如，如果你进行了一项名为“媒体战争：一战与美国文化转型”的研究，那么你可以这样回答：

The First World War (1914-1918) has always been a topic of fascination for me,and my prime interest lies in exploring the state of society at that time. I wanted to analyze the formation of a nationalized,wartime cultural apparatus during the United States' involvement in the war and how theatre and music transformed the relationship between the government and American citizens.

3、你的研究范围是什么？

你必须定义研究的边界，并明确你所研究的内容。可能涉及几个要素，但必须定义你选择研究的范围。例如：

My study is on the efficacy of equity stocks in the US market. For my study,I have chosen 50 companies listed on the NASDAQ. You can review the names of these companies on page 5 of my thesis.

4、研究过程中，你的问题有什么变化吗？如果有，如何实现？

通常，定性研究问题会随着时间的推移而改变，这取决于你可能从焦点小组得到的回答。或者你可以在做实验室研究或一般文本研究时改变你的问题。你可以向评估委员会描述这一变化。例如：

We started our study to understand the impact of the new public policy change on recycling of vinyl waste through installation of garbage bins specifically for vinyl products. However,after interviewing some of the respondents in the target community,we found that the rule is actually irrelevant to their behavior and thoughts because the percentage of vinyl waste in that specific locality was very low and it didn’t need the installation of dedicated bins for the purpose. Going by their frustrations with the current economic insecurity,our study evolved into the impact of costs incurred by public policy changes.

同学可以参考上述示例来准备自己的答辩答案。当然，问题提出的形式会有所不同，但问题的核心通常是不变的。