高中语法——过去完成时 (共20张PPT)

The present perfect tense: Have / has + the past participle I have received a letter from Lily recently. Has he handed in her homework yet? He has just gone to Beijing. They have never been to the USA. We have lived here for ten years. past perfect tense 过去完成时由had +过去分词构成 表示过去的过去生的动作 构成方式: 肯定句: had+动词的过去分词 否定句: had not+ 过去分词 一般疑问句:had+ 主语+ 过去分词 肯定回答: Yes, 主语+ had. 否定回答: No, 主语+ hadn’t. 基本用法: 1. 过去完成时表示在过去某时或某个动作之前发生的动作或存在的状态或表示经历或经验. (1) 我说自从你搬到这儿以来妈妈一直为你的懒惰 而生气. (2) 我到达电影院之前电影早已经开始了. I said mother had been angry about your laziness since we moved here. The film had begun before we got to the cinema. 2. 过去完成时表示过去某一时间以前开始一直延续到那个时间并可能延续下去的动作。常和by或since, for引导的表时间的从句或短语连用,但必须要与一个表示过去时的动作相对照. 1. 他来我们学校之前已经在那所学校工作了三年. 2. 当Millie到达电影院的时候, 电影已经开始了半个小时了. 3. 自从他离开南京我们就一直没有见过面. He had worked in that school for three years before he came to our school. The film had already been on for half an hour when Millie got to the cinema. We hadn’t seen each other since he left Nanjing. 3. 过去完