必修3 Unit 5 Canada ―“The True North”学案导学
Period four grammar：同位语从句
一、Preparation for the lesson before class
Step one: make a thorough inquiry for grammar
learn by oneself（ SB P37 Discovering useful structures）
Let’s students find out and understand concepts of uses by consulting materials.
同位语从句是名词性从句的一种，常用从属连词that引导，（when, where, who等也可引导），常常跟在fact, idea, opinion, news, hope, ability, patience, answer, order, report, wish, decision, suggestion, belief, doubt, fact, hope, message, promise, question, reply等名词后。同位语从句一般用来解释或说明这些名词的具体含义或内容。在逻辑上表现为同位关系。
