一、基础知识说明压强是中考的重点考查内容,任何题型均可能出现这部分内容,有些题目跟浮力、简单机械和机械效率结合液体压强也是中考重、难点考查内容,以解释现象、实验探究为主,常与浮力结合考查.大气压强主要以填空、选择题为主,题目较容易.液体压强的考查概率有逐年增大的趋势,主要题型为选择、实验和填空,但题目较易。二、重点难点突破1.压力与重力有关系吗压力可以由重力产生,有些物体对接触面的压力不都是由重力产生的.压力的大小可以大于、小于或者等于 First, the basic knowledge that pressure is the focus of examination in the examination content, any type may appear in this part of the content, some topics with buoyancy, mechanical and mechanical efficiency with a combination of liquid pressure is also important, difficult to examine the content to explain the phenomenon of experimental exploration Mainly with the combination of buoyancy test.Atmospheric pressure mainly to fill in the air, multiple choice questions, the title is easier.The probability of liquid pressure examination has increased year by year, the main problem is the choice, experiment and fill in the blank, but the subject is easier . Second, the key breakthrough difficulties 1. Pressure and gravity are related to the pressure can be generated by gravity, and some objects on the contact surface pressure is not generated by gravity.The size of the pressure can be greater than, less than or equal to