过去完成时（微课课件）.pptx

过去完成时制作：祁阳县哈弗中学 伍赊玲过去完成时先理解两个基本概念先理解两个基本概念过去某时刻过去某时刻过去某时刻之前过去某时刻之前 nowlast year 过去某时刻之前过去某时刻之前过去某时刻过去某时刻at 7：00 last night过去完成时的定义：过去完成时的定义：表示表示个动作或状态在过去某一时间或动作之前，个动作或状态在过去某一时间或动作之前，发生在发生在“过去的过去过去的过去”e.g.我醒来时，雨已经停了。我醒来时，雨已经停了。When I woke up，it had stopped raining.结构：结构：had+过去分词过去分词first过去完成时的判断依据 由“过去的过去”来判定。先发生的动作 后发生的动作 e.g.当我到车站时，火车已经离开了。完成作业后他就去睡觉了。firstfirst过去完成时，一般过去时When I got to the station,the train had already left.After he had finished his homework,he went to bed.7:10a.m.7:00 a.m.By the time I got up,I got upThe clock rangnow在在以前以前已经响过了已经响过了The clock rangthe clock had rung.7:407:30By the time I got outside,I got outsideThe bus leftnow已经走了已经走了The bus leftthe bus had left.By the end of last year,she had worked in the factory for twenty years.nowlast year worked for 20 years到去年为止，她已经在那个工厂工作了20年。She said she had worked in a foreign company for five years.注意：注意：过去完成时常用于过去完成时常用于宾语从句宾语从句中：中：主句主句谓语为过去式谓语为过去式（said,asked,told等），等），从句从句用过去完成时用过去完成时，此时从句中的动作发生在主，此时从句中的动作发生在主句的动作之前。句的动作之前。21世纪教育网first主句主句从句从句【对比】一般过去时、现在完成时和过去完成时 1.一般过去时 表示在过去某时发生的动作或存在的状态。我们五年前开始学英语。5 years agonowWe started to learn English 5 years ago.5 years agonow2.现在完成时 表示的动作发生在过去，但侧重对现在产生的结果或造成的影响，与现在有关。其结构为：“助动词 have（has）+过去分词”。我们已经学了五年的英语了。have learnedWe have learned English for 5 years.3.过去完成时表示在过去某个时间或动作之前 已经发生或完成了的动作或存在的状态，即“过去的过去（past-in-the-past）”。到去年为止，我们已经学英语四年了。past in pastnowpastWe had learned English for 4 years by last year.1.We _(learn)2000 English words since we came to this school.The teacher said we _(learn)2000 English words since then.We _(learn)500 words last term.We _(learn)2000 words by the end of last term.2.He _(have)a meeting next week.He _(have)a meeting two weeks ago.He told me he _(have)a meeting two weeks ago.3._ you _(be)to the Great Wall?The teacher asked if you _(be)to the Great Wall.have learnedhad learnedlearnedhad learnedhadhad hadHave beenhad beenwill have