九年级过去完成时用法讲解 1、概述 过去完成时表示过去某一时间或动作以前已经发生或完成了的动作。它表示动作发生的时间是“过去的过去”。表示过去某一时间可用by, before等构成的短语，也可用when, before 等引导的从句或通过上下代表示。 His eyes shone brightly when he finally received the magazine he had long expected. 当她终于收到她盼望已久的杂志时，她兴奋得两眼闪光。 By the time he was twelve, Edison had begun to make a living by himself.12岁时，爱迪生就开始自己谋生。 2、构成 过去完成时由“助动词had+过去分词”构成。其否定式、肯定式、疑问式如下表： 肯定式 had +PP 否定式 had+not PP 疑问式Had...PP? 注意：had not 常简略为hadn't。 They asked me to have a drink with them and said it was at least ten years since I had enjoyed a good drink. 他们请我和他们一起喝酒，并说我自上次喝酒到现在至少十年了。 We had learnt 30 lessons by the end of last month.到上个月末为止，我们已经学了30 课。 He said we hadn’t seen each other since I left Beijing.自从我离开北京，我们还没见过面。 3、过去完成时的用法 过去完成时的主要用法和现在完成时一样。不同的是，过去完成时把时间推移到了过去某一时间之前，与现在无关。 （1）过去完成时表示在过去某一时间或动作以前已经完成了的动作。这个过去的时间状语有by, before 等介词短语或when, before 等引导的从句。 Helen had left her keys in the office so she had to wait until her husband came home. 海伦把钥匙忘到办公室里了，因此她不得不等她丈夫回来。 When we got to the cinema, the film had already begun.当我们到达 电 影院 时，电 影 已经开始了。 He told me that he had visited the Great Wall before.他告 诉 我他以前参 观 过长 城 。 By the end of the match, they had kicked 2 goals, and we had kicked 4.比 赛 结 束 时，他们踢 进 了2 个球 而 我们踢 进 了4 个球 。 When Jack arrived he learned Mary had been away for almost an hour.杰 克 到达 后 得知 玛 丽 走 了近 一个小 时了。 （2...
