与引导时间状语从句的区别.ppt
《与引导时间状语从句的区别.ppt》由会员分享,可在线阅读,更多相关《与引导时间状语从句的区别.ppt(22页珍藏版)》请在淘文阁 - 分享文档赚钱的网站上搜索。
1、关于与引导时间状语从句的区别现在学习的是第1页,共22页(一)含义及构成 过去进行时表示过去某一时刻或某一段时间正在进行或发生的动作,其结构为:was / were + v. ing。I/He/She/It was +v-ing (第一三人称单数用was)We/You/They +v-ing 过去进行时现在学习的是第2页,共22页(1)过去进行时的否定句结构为:was / were+ not +v. -ing ,was与not常缩写为wasnt,were与not常缩写为werent。(2)过去进行时的一般疑问句结构为:Was / Were +主语+ v. -ing+其他?(3)过去进行时的特殊
2、疑问句结构为:疑问词+ was / were+主语+v. -ing+其他?现在学习的是第3页,共22页(二)用法 1. 表示过去某一时刻或某一段时间正在进行或发生的动作。与过去某一特定的时间状语连用,常见的有:at 3 oclock yesterday afternoon, in those days, at this time yesterday等。 2. 表示过去一个动作发生时,另一个动作正在进行,持续时间长的动作用过去进行时,常用在while引导的时间状语从句中。现在学习的是第4页,共22页. 用所给词的适当形式填空1. I _ (help) my mother with housewo
3、rk at ten oclock last Sunday. 2. The girl _ (have) a piano lesson at this time yesterday. 过去进行时的用法was helpingwas having现在学习的是第5页,共22页3. They _ (talk) about the film when the teacher came in. 4. While he _ (wait) for the bus, he read a newspaper. 5. He said he was _ (leave) for Shanghai soon.were tal
4、kingwas waitingleaving现在学习的是第6页,共22页. 句型转换1. Kate was drawing pictures when her mother came back. (改为否定句)Kate _ _ pictures when her mother came back. 2. She was babysitting her sister at this time yesterday. (改为一般疑问句)_ she _ her sister at this time yesterday?wasnt drawingWas babysitting现在学习的是第7页,共22
5、页3. They were having a party when I knocked at the door. (就划线部分提问)_ _ they _ when you knocked at the door?What were doing现在学习的是第8页,共22页. 用when或while填空1. What were you doing _ the earthquake happened? 2. _ I was shopping in the supermarket, I met my friend Nancy. whenWhile现在学习的是第9页,共22页3. I was sleep
6、ing _ my cousin came to see me. 4. My mother was doing the housework _ I was doing my homework. 5. _ the alien was in the shop, the girl called the police.when whileWhile现在学习的是第10页,共22页when and whileBoth of them mean ”当的时候”.Are they the same? No !现在学习的是第11页,共22页when引导的时间状语从句可以表示一个时间点引导的时间状语从句可以表示一个时
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 引导 时间 状语 从句 区别
限制150内