On the whole, the difficulty of fully interpreting textbooks is above average. And according to the teacher's detailed explanation and induction, it is suitable for students to improve themselves after class.

However, I think it is still necessary to analyze specific problems. Because it is a synchronous teaching aid, the chapters in it correspond to the chapters in the textbook one by one, and the topics behind each chapter are also aimed at the knowledge points in this chapter. Some knowledge points themselves belong to the foundation in the college entrance examination, so the questions in this chapter will not be difficult; However, if the knowledge point itself is difficult, the difficulty of natural topics will increase.

In addition, the writing principle of this paper is "synchronization with the college entrance examination", so the unit review after the big chapter and the test paper for the final module preparation are only questions of different difficulty levels, and then slightly raised.