精选优质文档-倾情为你奉上过去完成时用法讲解一、 概念: 表示过去的过去,其构成是had +过去分词。 二、 用法:1. 表示某一动作在过去某一时刻之前已完成。例如:He had gone to bed by 10:00 last night. (昨夜十点钟之前他已上床去睡了。)2. 与一般过去时搭配,表达某一动作在过去的动作发生时已完成。例如:The train had started when I got to the station. (当我到达车站时火车已开走了。)The minute I saw a lady getting off the bus, I knew it was she, for I had seen her before. (我一看到正在下公共汽车的那位女士就知道是她,因为我以前看见过她。)解说: 使用过去完成时在简单句里表达某一动作在过去的某一时刻已完成时,该过去的时刻常以“by +过去时间”的短语来表达。例如下面的说法是不正确的:He had gone to bed at 1