It feels good to do it, and the content is quite comprehensive, but the amount of questions is relatively large and it is still difficult to finish. If the difficulty is moderate, most of the questions are relatively simple, and a few questions are more difficult, accounting for about one tenth, and the difficulty is marked.

This book is a representative 2000 questions selected on the basis of college entrance examination physics questions (1952~202 1), which are systematically classified and arranged in detail according to the knowledge points of chapters. There is no doubt about the importance of the real questions in the college entrance examination. How to use real questions in a focused, planned and efficient way to carry out targeted comprehensive training. Based on this, this book is cautious in selecting topics, pursues the craftsman spirit of slow work and fine work, and strives for comprehensive coverage of test sites and questions, fine classification of chapters and questions, and clear framework of chapter knowledge points and questions. The difficulty of all the real questions in this book is marked, arranged from shallow to deep.