过去进行时微课.ppt

过去进行时微课 岱岳区满庄一中 李华 一、定义：过去某一时间正在进行的动作。 主语 十助动词was (were)十动词的现在分词 五、用法 （一）、过去某一时刻正在进行或发生的动作。 （三）、描述一件事发生的背景，一个长动作发生时，另一个短动作在发生。 For example: My brother fell while he was riding a bike. （四）、常与always连用，表埋怨、责怪、表扬和喜欢等感情。 My father was always smoking when she was young. Exercise 1.When I arrived at his office , he _____on the phone. was talking B. talked C. talk D. talks 2.--I called you yesterday evening, but nobody answered the phone. --Oh, I_____ a walk with my parents at that time. A. took B. was taking C. am talking D. take * 二、与现在进行时的异同： 现在进行时的构成为： 主语 十助动词am/is/are十动词的现在分词。 I was having dinner with my friends at this time yesterday. You were having a math class at this time yesterday. 三、构成： 四、标志词： at this time yesterday , at that time, at five last Sunday , the whole morning, all that day, then, last night,以及when, while引导的时间状语从句。 当老师进来时你们正在干什么？ 老师进来时他正在读书。他在读书时，我在写作业。 （二）、过去某个时间前后两个动作是同时进行的。 For example: What were you doing when the teacher came in？ He was reading books when the teacher came in . While he was reading books ,I was doing my homework. 特别注意：when 与while 的区别 二者都有“当……时”的意思，但while 后只能跟延续性动词（即后面可加ing的动词），而when 后既可跟延续性动词，又可跟非延续性动词，所有动词均可。 我哥哥骑自行车时，摔倒了。 It was snowing when he left school . 他离开学校时，天在下雪。 我父亲年轻时，总是抽烟。 I remembered She was often smiling when I talked to her. 我记得当我和她说话时经常微笑。 For example: 3. They ______________________ (在买衣服）when the UFO arrived. 4. What ________ you________ when you _____ the alarm? (当听到警报的时候, 你在干什么?) were buying clothes were doing heard *