二、单元知识系统 1、语言结构 (1)规则动词和不规则动词的过去式。 (2)hoW引导的特殊疑问旬。 2、主要旬烈 Where did you go on vacation b, I went to summer campo C、 How was the weather? d、 It was hot and humid二、单元知识系统 1、语言结构 (1) 规则动词和不规则动词的过去式。 (2)how 引导的特殊疑问句。 2、主要句型 a、Where did you go on vacation ？ b、I went to summer camp。 c、How was the weather？ d、It was hot and humid