(
课件网) Unit 8 Safe and sound Grammar 能够掌握when, while以及as引导的时间状语从句的用法。 能够掌握过去进行时的用法和结构。 学习目标 2 1 Let's enjoy a video about past continuous tense. Lead in 过去进行时表示过去某一时刻正在进行的动作或过去某一阶段一直在进行的动作。 过去进行时 I was reading at 8 last night. 昨晚八点我正在读书。 What were you doing last month 你上个月一直在做什么？ 基本结构：was/were + 动词现在分词 标志性的时间状语：(1) 过去的时间点 at that moment; at 9 last night; at this/that time yesterday / last Sunday ... (2)过去的时间段 from…to…last Monday；from...till...yesterday; the whole afternoon... 新课讲授 肯定句：主语+was/were+动词现在分词(+其他). I was sleeping at 10 p.m. last night. 否定句：主语+was/were+not+动词现在分词(+其他). I was not sleeping at 10 p.m. last night. 一般疑问句：Was/Were+主语+动词现在分词(+其他) 肯定回答：Yes, 主语+was/were. 否定回答：No, 主语+wasn’t/weren’t(was+not/were+not). Were you sleeping at 10 p.m. last night Yes, I was./No, I wasn’t. 特殊疑问句：特殊疑问词+was/were+主语+动词现在分词(+其他) What were you doing at 10 p.m. last night 注意：有些动词通常不用于进行时，主要有： 1. 表示心理状态、情感的动词，如love、hate、like、 know等。 2. 部分连系动词，如seem、appear等。 3. 感官动词，如see、hear、feel、smell、sound、taste等。 4. 短暂性动词，如decide、stop等。 What _____you _____(do) last month. We _____ (do) a project. My parents _____(not watch) TV from 8 p.m. to 10 p.m. last night. 3. John _____(fly) kites in the park at 9 a.m. yesterday morning. 4. _____ Sandy _____(call) Daniel at that time 5. Li Ming _____(not play) basketball at this time yesterday. 6. What ____ she ____(do) at 10 a.m. yesterday She _____(draw) a picture at this time yesterday. were doing weren’t watching was flying Was calling wasn’t playing was doing was drawing 根据句意及提示完成下列句子。 were doing Practice 1. He was playing football on the playground.（对划线部分提问） 2. My parents were playing computer games at that time. (改为否定句，一般疑问句，作否定回答) 3. The sun was shining brightly.(改为否定句，一般疑问句，作肯定回答。 根据提示改写句子。 Where was he playing football My parents were not playing computer games at that time. Were your parents playing computer games at that time. No, they were not. The sun was not shining brightly. Was the sun shining brightly Yes, is was. when，while和as的用法 ● when，while和as这三个词均有“当……时候”的意思。 There were already many people in the meeting room when he arrived. 他到场时会议室已有很多人。 While Millie was watching TV, her mum was sleeping. 米莉在看电视时她妈妈在睡觉。 I saw a traffic accident as I was riding to school this morning. 今天早晨我骑车上学时看见一起交通事故。 Presentation ● when和as既可以指某一点时间，也可以指某一段时间，其从句谓语动词表示的动作既可以是瞬间性的，也可以是延续性的；while指一段时间，从句的谓语动词必须是延续性的。即：指一段时间时，when、while和as都可用；指一点时间时，只能用when或as，不能 ... ...
