教学目标1．了解铁的物理性质．2．通过实验，掌握铁的化学性质，并培养学生的操作、观察、分析、归纳等各种能力．3．认识铁及铁制品锈蚀的原理和一般防锈方法，培养学生联系生活实际，运用知识解决问题的能力．4．通过介绍我国钢铁生产发展史和我国古代湿法炼铜原理；对学生 Teaching goal 1. Understand the physical properties of iron. 2. Through experiments, master the chemical properties of iron and cultivate students’ abilities in operation, observation, analysis, induction, and so on. 3. Understand the principle of iron and iron products corrosion and general rust prevention methods, cultivate students’ ability to connect with life, and use knowledge to solve problems. 4. Through the introduction of the history of iron and steel production in China and the principle of ancient wet copper smelting in China;