英语人教版八年级下册过去进行时讲解与练习巩固.docx

Unit 5 What were you doing when the rainstorm came? 第三课时：Section A 3 (Grammar focus-4c)教学目标：1 语言目标：能运用过去时态描写过去发生的事情2 技能目标：能听懂有关过去发生事件，能简单描写过去发后的事件3 情感目标：能过学习本课，培养学生在困境中互帮互助的品质教学重点单词短语: rainstorm, suddenly, alarm , go off , pick up , strange, report, area, wood, light, window, match, beat, heavily, against, asleep, fall asleep, die down, rise, apart, passage, pupil, bright, play ground, bell, completely, silence, in silence, recently, date, tower, at first, realize, truth句子: 1. What were you doing at eight last night? I was taking a shower. 2. What was she doing at the time of the rainstorm?She was doing her homework. 3. What was he doing when the rainstorm came?He was reading in the library when the rainstorm came. 4. What was Ben doing when it began to rain heavily?When it began to rain, Ben was helping his mom make dinner. 5. What was Jenny doing while Linda was sleeping?While Linda was sleeping, Jenny was helping Mary with her homework语法：过去进行时。Step1 Lead-in T:Have you got ready for todays class? Have you read the sentences in Grammar FocusStep 2 Grammar Focus 根据汉语意思完成句子。 昨晚八点你在做什么？What _ at eight last night?我在冲澡。I _.暴风雨来的时候她在做什么？What _ at the time of the rainstorm?她在做家庭作业。She _.暴风雨来的时候他在做什么？What was he doing _ the rainstorm came?暴风雨来的时候他在图书馆看书。He was reading in the library _.开始下大雨的时候本在做什么？What was Ben doing _ it began to rain heavily?开始下雨的时候本在帮他妈妈做晚饭。When it began to rain, Ben _ his mom make dinner.琳达在睡觉的时候，珍妮在做什么？What was Jenny doing _ Linda was sleeping?琳达在睡觉的时候，珍妮在帮助玛丽做作业。_, Jenny was helping Mary with her homework.Step 3 过去进行时1. 基本概念：过去进行时表示在过去某一时刻或一段时间内正在进行的动作。这一特定的过去时间除有上下文暗示以外, 一般用时间状语来表示。2. 结构 was / were ( not ) + 动词-ing 3. 句式 肯定式：I/He/She/It was working.We/You/They/ were working. 否定式:I/He/She/It was not working.We/You/They/ were not working. 疑问式和简略回答:(略)注意：1) was not常缩略为wasnt; were not常缩略为werent。2) 一般过去时与过去进行时用法的比较: 一般过去时表示在过去某个时间发生过的动作或存在的状态, 而过去进行时则表示在过去某一时刻或某一段时间正在进行的动作。例如:David wrote a letter to his friend last night. 大卫昨晚给他的朋友写了封信。(信写完了。)David was writing a letter to his friend last night. 大卫昨晚一直在给他的朋友写信。(信不一定写完。)4.练习： I. 根据汉语意思完成下列英语句子，每空一词。. 根据各题后括号内的要求完成下列各题，每空一词（含缩略形式）。Step 4 过去进行时中的when和while when和while都可表示“当的时候”，引导时间状语从句。你知道两者在过去进行时中的用法有什么不同吗？ 请仔细观察下面的例句，然后补全空格中的内容。 I was walking to school when I saw a cat in a tree. When Sally arrived home, her mother was cleaning the house. 主句的动作是持续性的，而从句动作是短暂性的，此时用_引导时间状语从句，主句用_时态，从句用一般过去时态。 While I was sleeping in the bedroom, someone knocked at the door. David fell while he was riding his bike. 主句的动作是短暂性的，从句的动作是持续性的，此时用_引导从句，主句用_时态，从句用过去进行时态。 While Andy was waiting for the bus, he was reading a newspaper. He was cleaning his car while I was cooking. 主句和从句的动作在过去的某时刻或某段时间同时发生，而且动作都是持续性的，此时用_引导从句，而且主句和从句都用_时态。 Practice: 1.汉译英。2.sectionA-4b 3. Talk about the picture.Step 5 Writing practice 1. 4a Look at the table and write sentences with both while and when. John Mary take photos buy a drink play the piano leave the house clean his room turn on the radio shop take the car to the car wash2. What were you doing at 8:00a.m. last Sunday? Fill in the chart. Then write a passage in your workbook. 8:00 a.m. you Your father Your mother Your gr