人教PEP版八年级下册英语课件-Unit 5-Section A (Grammar Focus~4c) 7页

Section A (Grammar Focus~4c) 　 　 It was snowy. The road was icy. A car was hitting a tree. The car was in bad shape. Look at the picture: —What was the weather like? —   —What happened? —   想一想:当我们在描述一个过去的事件时,会运用哪些时态 呢? ★探究一 1. 看4a中的表格,判断John与Mary的动作是延续性的还是非延 续性的。 2. 小组讨论并归纳:　　　　和　　　　都表示“当……时”;　　　　 用于过去进行时,只与延续性动作连用;　　　 用于一般过去 时,与非延续性动作连用。 while when while when ★探究二 1. 完成4b,用was, were, when或while填空。 提示:was用于单数,were用于复数,when后接一般过去时,while 后接过去进行时。 2. 根据文章事件发生的先后顺序,将序号填在流程图中。 ①made breakfast　②ate　③went out ④listened to the radio　⑤got to the place ⑥talked about a car accident ⑦saw car in bad shape ★探究三 1. 想一想上周日自己做了什么,完成课文4c中的表格中第一栏的 信息。(注意用过去进行时) 2. 问你的搭档做了什么,记录下来,完成表格第二栏的信息。 I: What were you doing at 9:00 a.m.? Partner: I was doing homework. How about you? I: I was sleeping. 注意:画线部分可以被替换。 3. 根据表格填空的信息,写一个报告。你可以这样开始: Last Sunday, while I was sleeping, my partner... was doing homework. While I was... 过去进行时的含义与用法小结 1. 含义:表示在过去某一时刻或某一段时间内进行或发生的动作。 (1) 肯定句:主语+was/were+doing+其他 如:I was watching TV. 我在看电视。 (2) 否定句:主语+was/were+not+doing+其他 如:I was not watching TV. 我不在看电视。 (3) 一般疑问句结构及其答语:Was/Were+主语+doing+其他?答 语:Yes, 主语+were/ was./No, 主语+weren’t wasn’t. 如:—Were you watching TV? —Yes, I was. / No, I wasn’t. (4) 特殊疑问句结构:特殊疑问词+was/were+主语+doing+其他? 如:What were you doing? 你在做什么? 2. 用法:常与表示过去的时间状语连用,如:last night, last Saturday等;或者与when, while等引导的过去时间状 语连用。如: (1) We were watching TV at seven last night. 昨天晚上七点的时候我们在看电视。 (2) What was Jenny doing while Linda was sleeping? 当Linda睡觉时,Jenny正在做什么?