论文部分内容阅读
在近几年的中考试题中,能力考查的力度大大加强,特别是出现了以“科学方法”立意的新命题.下面列举2001年中考题5则,供同学们参考. 1.科学方法迁移型例1 在学习欧姆定律时,为研究导体中的电流I与导体两端电压U、导体电阻R的关系,先保持导体电阻R一定,研究导体中的电流I与导体两端
In the mid-term exam questions in recent years, the ability to examine the ability has been greatly strengthened, especially the emergence of new propositions with the “scientific method” concept. The following are five examples of the 2001 mid-term exam questions for students to refer to. 1. Scientific method transfer type Example 1 In order to study Ohm’s law, in order to study the relationship between the current I in the conductor and the voltage U and the conductor resistance R at both ends of the conductor, the conductor resistance R must be maintained first, and the current I in the conductor and the two ends of the conductor must be studied.