猎户座HS
过去完成时的构成是:had+done(动词的过去分词)在这里been是be的过去分词形式啊,表示一种状态“在,存在”。这句话意思是:车最终到来的时候,我在站台已经有二十分钟了。
冰箱在说话
英语的时态都有固定的模式,现在完成时的模式是have/has+动词的过去分词,过去完成时是had+动词的过去分词, 表示在过去某个时间点之前已经完成的动作。它们都是在句子的谓语变化。初三英语9a的第四课最典型的一个句子:Hepburn had been a model before she became a Hollywood superstar.赫本在成为好莱坞超级明星之前就已经是一名模特了。
BuleS天之蓝
过去完成时 1) 概念:表示过去的过去----|-------|-----|---->其构成是had +过去分词构成。那时以前 那时 现在 2) 用法 a. 在told, said, knew, heard, thought等动词后的宾语从句。 She said (that) she had never been to Paris. b. 状语从句 在过去不同时间发生的两个动作中,发生在先,用过去完成时;发生在后,用一般过去时。 When the police arrived, the thieves had run away. c. 表示意向的动词,如hope, wish, expect, think, intend, mean, suppose等,用过去完成时表示"原本…,未能…" We had hoped that you would come, but you didn't.3) 过去完成时的时间状语before, by, until , when, after, once, as soon as。 He said that he had learned some English before. By the time he was twelve, Edison had began to make a living by himself. Tom was disappointed that most of the guests had left when he arrived at the party.
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