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1、Studying aims1.Learn to use Past Perfect tense（学会使用过（学会使用过去完成时态）去完成时态）By the time I got outside, the bus had already left. When I got to school, I realized I had left my backpack at home.2. 掌握掌握 把某物忘把某物忘(落落)在某处在某处的表达的表达: leave sth +表示地点的介词短语表示地点的介词短语The Past Perfect Tense过去完成时过去完成时1.过去完成时的构成过去完成时的构成
2、:助动词助动词 had (用于各种人称和数用于各种人称和数) + 过去分词过去分词By the time I got outside, the bus had already left.2. 过去完成时的用法过去完成时的用法:表示在过去某个时间或动作之前已经表示在过去某个时间或动作之前已经发生或完成的动作发生或完成的动作.也就是也就是过去的过过去的过去去. 8:10 8:10By the time I got to school,the teacher had started teaching already.now8:258:25 6:006:00By the time Tom got up
3、, his sister had already washed all the clothes.now7:007:00TomToms sister过去完成时过去完成时 常用的几种方式常用的几种方式: 1.与介词与介词by构成的时间短语连用构成的时间短语连用.2. 与与by the time引导的时间状语从句连用引导的时间状语从句连用.By the time I got home, she By the time I got home, she had had already already gonegone to bed. to bed.我到家时她已经睡了。我到家时她已经睡了。By the e
4、nd of last week, we had finished Unit 9.By the end of last week, we had finished Unit 9.上周结束的时候，我们已经完成了第九单元。上周结束的时候，我们已经完成了第九单元。3.常用在宾语从句中。常用在宾语从句中。4.体现在上下文中。体现在上下文中。I didnt go because I had already seen the I didnt go because I had already seen the film.film.我没有去，因为我已看过这部电影。我没有去，因为我已看过这部电影。他说他去过北京两
5、次。他说他去过北京两次。He said he had been to Beijing twice.He said he had been to Beijing twice.1b1.By the time I got up, my brother already in the shower.2.By the time I got outside ,the bus already .3.When I got to school, I realized I my backpack at home.gottenhadhadhadleftleftTake turns being Tina.Look at
6、 the picture and tell what heppened to you this morning.A: What happened to you?B: I overslept. And by the time I got up , my brother had already gotten in the shower.2b1.When I (get home), I (realize) I (leave) my keys in the backpack.2.By the time I (get) back to school, the bell (ring).3.By the t
7、ime I (walk) into class, the teacher (start) teaching already.got homegothad rungwalkedhad startedrealizedhad leftPretend you are Tina. Tell us your morning.Translation1.她起床的时候，他的弟弟已经进入浴室了。她起床的时候，他的弟弟已经进入浴室了。2.她出去的时候，公共汽车已经离开了。她出去的时候，公共汽车已经离开了。3.我到学校的时候，我意识到我把书包落在家里了。我到学校的时候，我意识到我把书包落在家里了。4.我到家的时候，我把钥匙落在书包里了。我到家的时候，我把钥匙落在书包里了。5.我返回学校的时候，铃声已经响了。我返回学校的时候，铃声已经响了。6.我走进班里的时候，老师已经开始上课了。我走进班里的时候，老师已经开始上课了。 Thanks !
