First of all, we should fully understand the content of the lecture. Because the questions raised must revolve around the content of the lecture, we must fully understand what the lecture said and what the focus is before we can ask questions related to the content of the lecture. Fully understanding the content of the lecture is also helpful to think more and ask valuable questions.
Secondly, I think college students should read more books and accumulate certain knowledge. With knowledge, you can't ask some particularly simple questions like a layman. If you want to ask high quality questions, you must accumulate some knowledge and think independently. Everyone's way of thinking is different, so we must learn some knowledge and think uniquely before we can put forward different opinions.
Finally, I think it is necessary to have a certain concept of the overall situation, that is, to know what is the most important and what is secondary. Grasp the focus and connotation of the lecture and think about it, so as not to deviate from the center in the process of asking questions. Therefore, only by grasping the whole and controlling the overall situation can we raise high-quality questions.
So my suggestion is to have a general understanding of the content of the lecture before attending it. According to these contents, I will refer to relevant books and have a general understanding of this content. Coupled with a certain creative spirit, we can ask high-quality questions. Of course, the most important thing is to listen to your inner voice and ask yourself the questions you want to know most.