人教版初中物理第二册关于短路的概念出现了两次.第一次安排在第四章第五节《电路和电路图》中,该节在给通路和开路下了定义后,又这样给短路下了定义:“直接把导线接在电源上,电路中会有很大的电流,可能把电源烧坏,这是不允许的,这种情况叫做短路(图略).第二次安排在第十章《家庭电路中电流过大的原因》 The concept of short-circuiting in the second edition of Physics for Junior High School of the People’s Education Press came up twice. The first arrangement was given in Chapter IV, “Circuits and Circuit Diagrams,” which was defined after the passages and open circuits were defined. Short-circuit under the definition: ” Directly connected to the power supply, the circuit will have a lot of current, may burn out the power, which is not allowed, this situation is called a short circuit (figure omitted). The second arrangement In Chapter 10 “The Cause of Excessive Current in Home Circuits”