编者：审题和解题本文分别归纳《压强、液体的压强》、《大气压强》、《浮力》等单元知识点；有许多有趣的题目，错综复杂的关系隐藏在看似简单的物理现象后面．能否正确解答它们与审题关系重大．审题是解题的第一步．研读题文，识别题图，理解题目所描述的物理现象，从而形成 Editor: Examining the Problem and Solving the Problem This article summarizes the unit knowledge points such as Pressure, Liquid Pressure, Atmospheric Pressure, and Buoyancy, etc. There are many interesting topics. Intricate relationships are hidden behind seemingly simple physical phenomena. It is of great importance to answer them correctly. Trial is the first step in solving a problem. Study the inscription, identify the question map, understand the physical phenomena described by the topic, and form