Unit5单词详解课件 2023-2024学年人教版八年级英语下册

Unit5 What were you doing when the rainstorm came? 过去进行时的定义 1 表示过去某一时刻或某一段时间内正在发生的动作或存在的状态。 She was reading a book at 10 a.m. yesterday morning. He was shopping from 8 to 9 last night . 过去进行时的结构 2 S(主语) + was / were +v.-ing + 其它. 否定形式 问句形式 was/were + not + doing Was/Were+主+doing? was/were + doing He was sleeping at that time. He wasn’t sleeping at that time. Was he sleeping at that time? 肯定形式 1.I was singing songs yesterday morning. 否定句：___________________________ 一般疑问句：__________________________ 2. They were drawing pictures when the teacher came in. 否定句：___________________________ 一般疑问句：__________________________ 3. She was washing the window when the telephone rang. 否定句：___________________________ 一般疑问句：__________________________ Exercise One I was not singing songs yesterday morning. Were you singing songs yesterday morning? They were not drawing pictures when the teacher came in. Were theydrawing pictures when the teacher came in? She was not washing the window when the telephone rang. Was she washing the window when the telephone rang? 标志性的时间状语 3 1)at + 具体时间+过去时间 at that time last night at this time yesterday at 5 o’clock last Sunday 2) at the time of… 在…的时候 3) 过去进行时+when引导的一般过去时的从句（短暂性动词） 4)过去进行时+while引导的过去进行时 （延续性动词） 现在分词的变化规则 3 口诀 规则 例子 直 1. 一般情况下，直接加-ing play –playing 去 2. 动词以不发音的-e结尾，去-e加-ing take – taking 双 3.重读闭音节结尾末尾只有一个辅音字母的动词，要双写辅音字母，再加-ing cut – cutting 变 4. 以-ie结尾的动词，变ie为y再加-ing lie – lying 不同点（1） when主从句可以同时发生，也可先后发生； while则强调主句和从句的动作同时发生。 when可代while，而while不代when。 when＆while 7 不同点（2） when常接一般过去时从句，while后接进行时态的句子。 玛丽在图书馆里读书时，杰克正在操场上踢足球。 Mary was reading in the library while Jack was playing soccer on the playground. 8 1. She __________ (do) her homework this time yesterday. 2. The teacher _________ (help) his students with their lessons now. 3. He __________ (make) progress every day. 4. She _____________ (read) a story-boo