Phenomenon is the external relationship and superficial characteristics of things, and the essence of things is often reflected through appearances. Every objective thing is a complex unity of various laws, which is manifested through colorful phenomena. When people come into contact with a thing, they always realize its colorful phenomena first, and get a perceptual knowledge of the whole thing from feeling, perception to appearance. By analyzing the phenomenon of things, we can help us understand the essence of things. The strategy to interpret the essence of things is at the same time, and its essence also has differences at different levels or primary and secondary levels, so it is not easy to grasp it accurately. Therefore, before writing, we must carefully investigate and explore, and we must not make hasty judgments. 1. You should have a unique vision and observe things carefully. For junior high school students, don't let go of trivial things in life when observing. If you can use your brain and look at those "sesame and mung beans" in the same way, you can get the outstanding idea of "seeing the essence in the ordinary and seeing the big thousand in the dust" 2. Master some methods and grasp the essence. We should use the light of rational wisdom to make some efforts to "shake the leaves and seek the roots" under the observed appearance. Pay attention to the use of comparative methods to sum up the phenomenon of things, to eliminate the false and retain the true, to eliminate the rough and retain the essence, from the outside to the inside. Pay attention to the dynamic analysis of the development process of things and explore the particularity of things in different stages of development. 3. Master some "theoretical weapons". The phenomenon of things is complicated, often mixed with truth and falsehood, which is difficult to distinguish. At the same time, the essence of things often has a gradual exposure and gradual process. Therefore, it is not easy to understand the nature of things. This requires us to accumulate more at ordinary times. Some dialectical materialism and historical materialism viewpoints in political textbooks should be absorbed and digested, and other excellent theoretical books and articles should also be paid attention to from time to time. In this way, bringing a little "theoretical weapon" into the examination room and using it appropriately according to the needs will often receive good results.