定语从句学案 一、学习目标:1. Summarize the rules of how to use who , which, that, whom.2.Grasp the differences between that and which ,who and whom . ★3. Use the Attributive Clause freely. ※二、课前预习:I.诊断性测试:用适当的关系代词that, which, who, whom填空。(越多越好!)1. The boy ______ is writing a composition is Tom.The boy ______ I mentioned just now is Tom.2. I like the book _______ was written by James. I like the book _______ J..