整理英语过去完成时和时间状语从句知识结构,过去完成时的肯定句构成

网友回答

过去完成时基本用法
　　❶ 表示过去某一时间或某一事件前已发生且已完成的动作或状态。如:
　　 We had finished the work by nine o'clock yesterday. 昨晚九点前我们已完成了工作。
　　 When he got there,the train had already left. 他到了那儿时火车已经开了。
　　❷ 表示在过去某一时间或某一事件前已发生但尚未完成的动作或状态。如:
　　 By July last year, Emma had studied here for 3 years. 到去年七月艾玛已经在这儿学习了三年了。
　　❸ 过去完成时常用在引述动词一般过去时后的间接引语中。如:
　　 They said that they had planted the trees on the hillside. 他们说他们把树种在山坡上了。
　　 Jack told me he had read the book before. 杰克告诉我他以前读过那本书。
　　 Julie said she had gone to see him the day before. 朱莉说她前一天已经去看过他。
　　❹ 用于对过去事实进行虚拟的条件句中。如:
　　 If I had hurried, I wouldn't have missed the train. 如果我快点的话,我就不会误了火车。
　　 If you had been at the party, you would have met him. 如果你去了晚会,你就会见到他的。
　　❺ think, want, hope, plan, intend, mean和suppose等词的过去完成时可以用来表示本来要做而没做或无法做的事,或没有实现的希望或意图。如:
　　 Eve had hoped to see more of China. 伊芙曾希望在中国多观光一番。
　　 I had intended to be there on time. 我本打算准时去的。
　　 Greta had meant to see her off at the airport. 格瑞塔本打算是要去机场送她的。
　　❻ 用于wish后的宾语从句中,表示对过去未做成的事情的某种感叹或愿望。如:
　　 I wish I had been there at that time. 那时候我要在那儿就好了。(事实上我不在那儿。)
　　 I wish I had told him about it. 我要是告诉他那事就好了。(事实上我没告诉他。)

网友回答

过去完成时(past perfect)表示在过去某一时间或动作之前已经发生或完成了的动作。
　　 它表示句子中描述的动作发生在“过去的过去”。
　　 基本结构：主语+had+过去分词(done)
　　 肯定句：主语+had+过去分词+其他.