高一英语外研版必修1 Module 5 A Lesson in a Lab 学案一、知识要点1. When we use metal, it is important to know how they react with different substances, for example, water and oxygen. 使用金属时，要了解金属和不同的物质怎样发生反应，例如水和氧气，这一点很重要。react 作不及物动词，“起化学反应”，react with sth. 与某物起化学反应它还有“对某人或某物做出反应”之意，常与介词to连用 react to sth./sb.2. The reaction of metals with these substances can be put in order.（不同的）金属与这些物质的反应程度可以按顺序排列起来。in order“按顺序、次序”，还有“适当的；能用的”意思，反义词组为out of order例如 He put his business affairs in order bef
