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1、过去进行时微课岱岳区满庄一中 李华一、定义定义：过去某一时间正在进行的动作。二、二、与现在进行时的异同与现在进行时的异同：现在进行时的构成为：现在进行时的构成为： 主语主语 十助动词十助动词am/is/are十动词的现在分词。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.主语 十助动词was (were)十动词的现在分词三、三、构成构成：四、四、标志词标志词：at this time yesterday
2、 , at that time, at five last Sunday ,the whole morning, all that day, then, last night,以及以及when, while引导的时间状语从句。引导的时间状语从句。五、用法五、用法（一）、过去某一时刻正在进行或发生的动作。（一）、过去某一时刻正在进行或发生的动作。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。（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 tea
3、cher came in？He was reading books when the teacher came in . While he was reading books ,I was doing my homework.特别注意特别注意：when 与与while 的区别的区别二者都有二者都有“当当时时”的意思，但的意思，但while 后只能跟延续性动词（即后面可加后只能跟延续性动词（即后面可加ing的动词），而的动词），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。后既可跟延续性动词，又可跟非延续性动词，所有动词均可。（三）、描述一件事发生的背景，一个长动作发生时，另
4、一个短动作在发生。For example:My brother fell while he was riding a bike.我哥哥骑自行车时，摔倒了。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。他离开学校时，天在下雪。（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.我父亲年轻时，总是抽烟。我父亲年轻时，总是抽烟。I remembered She was often smiling when I talke
5、d to her.我记得当我和她说话时经常微笑。我记得当我和她说话时经常微笑。For example:Exercise1.When I arrived at his office , he _on the phone.A.was talking B. talkedC. 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 3. They _ (在买衣服）在买衣服）when the UFO arrived.4. What _ you_ when you _ the alarm? (当听到警报的时候当听到警报的时候, 你在干什么你在干什么?)were buying clothesweredoingheard While What were they doing yesterday afternoon?He was playing basketball while she was sleeping.
