九年级英语-Unit12grammar-focus.pptVIP

6.My mother finished making the apple pie. I got home from my language course. By?the?time?I?got?home?from?my?language?course,?my?mother?had finished?making?the?apple?pie. 把下面的句子翻译成汉语。 1.Before?I?put?cream?in?the?coffee,?the?coffee?had?become?cold. 2. By?the?time?I?got?to?school,?the?teacher?had? collected?the?math?homework. 3. Before?the?workday?ended,?I?had completed? the?work?for?my?boss. 我把牛奶放进咖啡之前，咖啡就已经变凉了。 当我到学校的时候，老师已经收完数学作业了。 工作日结束之前，我就已经完成老板布置的任务了。? 4. By?the?time?I?arrived?at?the?cinema,?the? movie?had?started.? 5. By?the?time?I?got?home?from?my?language? course,?my?mother?had?finished?making?the? apple?pie. 当我到达电影院的时候，电影已经开始了。 我学完语言课回到家时，我妈已经做好了苹果派。? 1. 我到家时她已经睡了。 By the time I got home, she had already gone to bed. 2. 到晚上时消息已传遍全球。 By the evening the news had spread through the world. 把下面的句子翻译成英语。 Section A Grammar Focus Read these sentences and pay attention to the underlined parts. Before I got to the bus stop, the bus had already left. By the time I got back to school, the bell had rung. When I got to school, I realized that I had left my backpack at home. 过去完成时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， 即：过去的过去。 　过去完成时态的概念：? 时间轴表示 肯定式：had + 动词的过去分词?????? 否定式：hadnt + 动词的过去分词 　 疑问式：Had … + 动词的过去分词? 简略回答: Yes, 主 + had. 　　??? No, 主 + had not. 特殊疑问句：特殊疑问词或词组+一般疑问句 (Had+主语+过去分词)? 　过去完成时态的构成：? 1. 过去完成时表示一个动作或状态在过去某一时间或动作之前已经完成或结束，即发生在“过去的过去” 。如： When I woke up, it had stopped raining. 我醒来时，雨已经停了。 （主句的动作发生在“过去的过去”） 过去完成时的用法： By the time they arrived, the bus had left. 当他们到的时候，公交车已经开走了。 2. 过去完成时是一个相对的时态，表示的是“过去的过去”，表示 从过去某一时间开始一直延续到过去另一时间的动作或状态。只有和过去某一时间或某一动作相比较时才使用它。如： He told me that he had written a new book. (had written 发生在 told 之前 ) 3. 过去完成时需要与一个表示过去的时间状语连用，它不能离开过去时间而独立存在。此时多与already， yet， still， just， before， never等时间副词及 by， before， until等引导的短语或从句连用。如： Before she came to China, Grace had taught English in a middle school for about five years.　 Peter had collected more th