Exercises on historical materials, 1. Look at the problem first, then look at the material. If you look at the materials first, you will easily have fear when you encounter difficult ancient Chinese and foreign materials, which will affect your answer; Moreover, the reading materials don't know the requirements and direction of answering questions, which are not targeted, inefficient and waste time. So look at the problem first, and then look at the material with the problem, which is clearer and more time-saving. 2. The basic principles of reading materials: ① Look at both ends and find information. The beginning and end of the material are generally the places where the proposer briefly introduces the source and content of the material, which generally includes one or more pieces of information such as the background, time, country and author of the material, and even the center of the material. These explanatory words often give the problem solver some hints and guidance, and may ambush the information needed to solve the problem, which has a certain enlightening effect and should not be missed. Read and read through the material. Generally speaking, we should first read the material roughly and have a general understanding of the content of the material. Read carefully again, correctly understand the material viewpoint, obtain effective information, and prevent specious questions that are eager to answer with a little knowledge. Finally, focus on reading, read with questions, extract effective information, determine the relationship between materials and related knowledge, and crack the direction of examination of proposition ability.