人教版八年级英语下册《What were you doing when the rainstorm came?》SectionA PPT教学课件(第3课时)，共37页。ObjectivesTo learn the grammar-the past progressive tense.To learn to apply the past progressive tense to talk about the past events.Grammar FocusWhat were you doing at eight last night?I was taking a shower.What was she doing at the time of the rainstorm?She was doing her homework.What was he doing when the rainstorm came?He was reading in the library when the rainstorm came.What was Ben doing when it began to rain heavily?When it began to rain, Ben was helping his mom make dinner.What was Jenny doing while Linda was sleeping?While Linda was sleeping, Jenny was helping Mary with her homework.1. 以when和while引导的时间状语从句1) 延续性动词和非延续性动词延续性动词指动作可以延续一段时间, 而不是瞬间结束。如: work、study、drink、eat等。非延续性动词指动作极为短暂，瞬间结束。如: start、begin、hit、jump、knock等。2) 在本单元中，出现了以when和while引导的时间状语从句。when表示“当……的时候”。从句中既可用延续性动词，又可用非延续性动词，这些动词既可以表示动作，又可表示状态。从句中动作既可和主句的动作同时发生，又可在主句的动作之前或之后发生。如：Mary was having dinner when I saw her.The boy was still sleeping when his mother got home yesterday morning.3)while表示“在……的时候”、“在……期间”。它强调主句的动作与从句的动作同时发生或主句的动作发生在从句的动作过程中。while从句中必须是表示动作或状态的延续性动词。如：The weather was fine while we were in Beijing.She called while I was out.如果主句的动作在从句的动作过程中发生，从句常用进行时。如:While the boys were playing football, it rained.2. 过去进行时概念: 表示过去某一时刻或某段时间内正进行的动作。构成: was/were + 动词现在分词用法: a: 表示某一时刻正进行的行为，与特定的过去时间状语连用，常见的时间有: at 8 last night, at this time, at that time, at that moment 等What were you doing at 10 yesterday morning?I was writing a letter to my father at that moment.b: 表示过去某段时间内正进行的动作。e.g. We were building a house last winter.They were waiting for you yesterday.否定句和疑问句：e.g. We were not sleeping at home.Was he feeling well?3.现在分词的构成1)一般动词在词尾加-ing，如go—going2) 以不发音字母e结尾的动词, 先去掉e, 再加-ingcome — coming make — making write — writing3) 以重读闭音节结尾的动词，如果末尾以一个辅字母结尾，应先双写这个字母，再加ing，x和w结尾的除外。get — getting swim — swimming show — showing4) 以字母y结尾的单词，直接加ing。如：carrying playing studying5) 以字母ie结尾的动词，变ie为y，再加ing。die → dying lie →lying6) 以元音字母加e结尾，或以e结尾，且e发音的动词，直接加- ing。see — seeing be — being4. 使用进行时态的注意事项1)一些动词，如see, hear, love, like, know,remember, understand, have等表示感情、知觉和状态的词，一般不用于进行时态。2) 在there和here引起的句子中，常用一般现在时代替现在进行时。e.g. Here comes the bus.There goes the bell.5. 过去进行时和一般过去时的区别1) 过去进行时表示过去正在进行的动作，而一般过去时则表示一个完整的动作。如：They were writing letters to their friends last night.昨晚他们在写信给他们的朋友。 (没有说明信是否写完)They wrote letters to their friends last night.他们昨晚写了信给他们的朋友。(表达了他们已写好的意思，整个写的过程已完成)2) 当动作延续较长时间时或表示厌烦、赞美等感情色彩时, 常用过去进行时表示。如：He was thinking more of others than of himself.他考虑别人的比考虑自己的多。(表示说话者赞扬的口气)The boy was always making trouble then .那时，他总是惹麻烦。(表示说话者厌烦的口气)... ... ...关键词：What were you doing when the rainstorm came? PPT课件免费下载，.PPTX格式； 本作品中主体文字及图片可替换修改，文字修改可直接点击文本框进行编辑，图片更改可选中图片后单击鼠标右键选择更换图片，也可根据自身需求增加和删除作品中的内容，源文件无水印。如认为该内容涉嫌侵权，可通过邮件提出书面通知，我们将及时处理。