在近几年全国各地中考物理试题中,出现很多以新科技为背景设计的物理试题,尤其是在“电功和电热”这一部分,这也是中考命题的公平性和区分度需要。这类题虽然情景新,但解题所用的知识和能力都是我们平时物理学习中训练过的,只要基础扎实,阅读理解能力较强,再加适当的训练,就会在中考中取得好成绩. In recent years, many physics examinations have been designed in the middle school physics examinations all over the country, especially in the section of “Electric Power and Electricity”, which is also the need of fairness and differentiation of the entrance exams. Although these scenarios new situation, but the problem-solving knowledge and ability are used in our normal physical training, as long as a solid foundation, strong reading comprehension, coupled with appropriate training, will get good grades in the test .