专题十四 一般过去时一、一般过去时的用法1.发生在过去 I bought a book yesterday. 我昨天买了一本书。2.讲故事 Long long ago, there was a princess. 很久以前，有一位公主。3.过去经常发生 I often had lunch at home last year. 我去年经常在家吃午饭。一般过去时的标志词yesterday 昨天 last . 上个. . ago .以前 just now 刚刚long long ago 很久很久以前 When I was 3 . 当我三岁的时候二、一般过去时的构成1. 主语+be（was, were）+其他eg. I was a teacher two years ago. 我两年前是一名老师。 They were babies ten years ago. 他们十年前是婴儿。2. 主语+动词过去式+其他 eg. I walked to the shop yesterday. 我
