Although privately, we have been "running in" with the paper for a month, although we have a lot of "understanding" about the paper, when facing the teacher's design of defense, our nervous minds are blank and we don't know how to answer the teacher's questions.
When answering, the teacher will ask, why did you choose the topic of this paper? In fact, this problem needs specific analysis. You must answer this question truthfully. You can understand it from your own actual situation. For example, you are more interested and familiar with this direction, no matter what the answer is. It is necessary to investigate in advance and combine the following development to make the topic more "reasonable" and more convincing.
Investigating the social background and core ideas, this question requires students to analyze through the network or according to their own practice. You can make your thoughts clearer and express them as accurately as possible when you reply. Try to avoid lengthy, ambiguous and ambiguous expressions.
And the methods and innovations you choose. When defending a paper, you should show the highlights of the paper, so that the teacher can clearly understand your ideas, methods, extensions, highlights and so on. Let the students try their best to keep their heads clear, and when they hear the questions clearly, they can express them concisely and reasonably. I believe they can pass the defense smoothly.