2003年高考理科综合试卷物理试题命得比较好,难度适中,注重基础,加强了学科内的综合,加大了应用性和理论联系实际的能力考查,体现了高考的改革方向和新教材改革的意图.下面以25题为例谈谈我的看法: [第25题]曾经流行过一种向自行车车头灯供电的小型交流发电机,图1为其结构示意图.图中N、S是一对固定的磁极,abcd为固定在转轴上的矩形线 In 2003, the physical examination papers for the college entrance examination science essay were better, the difficulty was moderate, and the basics were emphasized. The integration within the subject was strengthened, and the ability to apply the theory and connect the theory with practice was examined, which reflected the reform orientation of the college entrance examination and the reform of the new teaching materials. Intent. The following 25 questions as an example to talk about my views: [Item 25] once popularized a small alternator powering the bicycle headlights, Figure 1 is a schematic diagram of its structure. In the figure, N, S is a pair Fixed magnetic pole, abcd is a rectangular wire fixed on the shaft