一、背景说明本节内容出现在人教版必修2中,涉及化学与物理学科知识的交叉。在以往的教学中,学生对这部分内容的理解与掌握比较困难。把它安排在能量这一部分,说明教材并不想在此就一步到位,只是想让学生能够了解原电池的能量转化并知道其原理。本节教材设置了大量的探究教学素材,富有深刻的探究教学思想内涵。是培养学生创新思维与综合能力的极好切入点。 First, the background description This section appears in the PEP 2 compulsory 2, involving the intersection of chemistry and physics knowledge. In the past teaching, students understand and grasp this part of the content is more difficult. Put it in the energy section, indicating that textbooks do not want to step in here, just want students to understand the original battery energy conversion and know the principle. This section teaching materials set a lot of inquiry teaching material, full of profound exploration teaching thought connotation. It is an excellent starting point to train students’ innovative thinking and comprehensive ability.