Unit 5 过去进行时 课件 2021-2022学年人教版八年级英语下册

这是一份Unit 5 过去进行时 课件 2021-2022学年人教版八年级英语下册，共24页。
Past Continuous Tense过去进行时概念构成现在分词变化规则时间状语过去进行时和一般过去时的区别过去进行时概念：表示过去某一时刻正在进行的动作或过去某一阶段一直进行的动作。 通常句子一定会有一个“表示过去某个时间点”的状语。概念概念1：表示过去在某一时刻正在进行的动作。e.g. I was discussing my homework with my classmates at 9:00pm last night.概念过去的某一时刻概念2：表示过去某一阶段一直进行的动作。e.g.Jack was writing that story from 7 to 9 yesterday morning.过去的某一阶段概念 I was discussing my homework with my classmates at 9:00pm last night.Jack was writing that story from 7 to 9 yesterday morning.你可以总结出过去进行时的结构吗？构成：肯定句：主语+was/were+现在分词+其他e.g.He was working last night.构成构成：否定句：主语+was/were+not+现在分词+其他e.g.He wasn’t working last night.构成构成：疑问句：Was/Were+主语+现在分词+其他？e.g.Was he working last night? Were you watching TV yesterday night?构成造句：1.昨天晚上七点我正在唱歌。______________________________________________2.昨天早上她们都在画画。______________________________________________exerciseI was singging songs at 7:00 yesterday night. They were drawing pictures yesterday morning. 1.I was singging songs at 7:00 yesterday night.否定句：______________________________________________一般疑问句：______________________________________________2. She was washing the window when the telephone rang.否定句：______________________________________________一般疑问句：______________________________________________exerciseI wasn’t singing songs at 7:00 yesterday night. Were you singing songs at 7:00 yeserday night? She wasn’t washing the window when the telephone rang.Was she washing the window when the telephone rang?working、singing、discussing、drawing、writing、washing观察动词的变化，有什么共同点？现在分词变化规则：1. 一般情况下直接v+ingwork---working、do---doing、go---going现在分词变化规则现在分词变化规则：2. 以不发音的e结尾：去掉结尾的e，再加ingmove---moving、close---closing现在分词变化规则现在分词变化规则：3. 以ie结尾的动词，变ie为y再加ingdie---dying、lie---lying现在分词变化规则现在分词变化规则：4. 以重读闭音节结尾的动词，双写末尾的辅音字母再加ingbegin---beginning、drop---dropping现在分词变化规则时间状语（标志词）：标志词at that time/moment. at that time of ·····this time+过去时间：when/whileyesterday at 5o’ock last nightfrom 7:00-9:00yesterday all night、all the moring特殊用法进行时与always连用：表示强烈的情感，如喜欢或者厌恶。e.g. They were always talking。e.g.He was always messing up the kitchen.when: at or during the time表示短时间的动作，主句常用进行时态E.g. The boy was playing in the playground when the earthquake hit the city. When the boy was playing ing the playground, he found a kid was crying.when/while区分while: during the time 连接两个动词表示过去的两个动作同时进行。E.g. While the boy was playing ing the playground, he found a kid was crying.when/while区分1.He _____________ (do) his homework at eight last night.2.They _____________(have) a maths lesson at this time yesterday.3. Mary ____________(write) a letter last night.4. When the teacher ________ (come) in, they ___________ (talk) loudly at that time.5. My mom__________(wash) dishes while my father __________(read) books yesterday night.exercisewas doingwere havingwas writingcame were talkingwas washingwas reading1. 概念不同过去进行时：动作再过去的某个时间正在进行，可能完成，也可能没完成。Mary was writng a letter last night.（玛丽昨晚整晚都在写信。）一般过去时：表示动作或者状态已经结束。Mary wrote a letter last night. （玛丽昨晚写了封信。）过去进行时VS一般过去时1.He _____________ (not work) at that time.2.______he _______(study) English from 7to 9last night?3. His mother ____________(return) while he_________(do) his homework.4.She ___________ her homework this time yesterday.5. ______you __________(have) a good time last Sunday?exercisewasn’t workingWas studyingreturned was doingwas doing Did haveThanks for watching！ 谢谢观看！