What is the historical background at a certain point in time, what historical events have occurred, what historical influences have been produced, and what are the relations between these influences and the previous generation and future generations? Here are some details. It is necessary to slowly make up unfamiliar knowledge points on the basis of establishing a framework.
After doing this roughly, combine the exercises, do a few pages of exercises, look back at the wrong questions, and then find the corresponding knowledge points from the textbook.