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Grade 8 /Unit 8/Grammar & Word power 华侨双语初中部 英语随堂师生练习案 Class Name Unit 8:Safe and sound Lesson Type: New teaching Producer:青山Reviewer: 八年级备课组 教学目标:1. 掌握过去进行时的定义、构成及基本用法。2. 能区分过去进行时与一般过去时的用法差异。 3. 会运用when/while/as引导时间状语从句,结合过去进行时进行句式表达。4.构词 学 习 过 程 自主空间 一、Learn by yourself. 一、过去进行时的定义 用来表示 正在进行的动作,或过去某一阶段 的动作。 二、过去进行时的结构 1. 肯定式:was/were + 动词-ing形式 eg:I at 8 last night.(昨晚八点我正在读书) 2. 否定式:was/were + not + 动词-ing形式 eg:We at this time yesterday.(昨天这个时候我们没在购物) 3. 疑问式:Was/Were + 主语 + 动词-ing形式? eg:What last month?(你上个月一直在做什么?) 4.一般疑问句及其回答 肯定回答:Yes, 主语 + was/were.否定回答:No, 主语 + wasn't/weren't. — the whole morning yesterday? —Yes, .(—昨天整个早上你都在读英语吗?—是的,我在读) 三、过去进行时的具体用法 1. 表示过去某一时刻正在进行的动作:常用时间状语:then、(at) this/that time yesterday、at + 时间点 + yesterday、时间状语从句等。 例句:I was (那时我正在看电视); When , he was doing homework.(当我看见他时,他正在做家庭作业)。 2. 表示过去某一阶段一直在进行的动作:常用时间状语:those days、the whole morning yesterday、all day yesterday、from + 时间点 + to + 时间点 + last night等。 例句:He was learning to swim .(那些天他一直在学习游泳); We last night.(昨天晚上七点到九点我们一直在看电视)。 3.特殊用法与注意事项 ①表过去将来:was/were + 动词-ing(come、go、leave、arrive等动词),表过去某个时间将要做的事。 例句:He said he was coming this evening.(他曾说他今天晚上要来)。 ②不用于过去进行时的动词类型(大声朗读三遍) 这类动词多表示状态、情感、感官等,无法体现“进行”的动作特征,主要包括:心理状态/情感类:love、hate、like、know等 ;部分连系动词类:seem、appear等;感官动词类:see、hear、smell、sound、taste等 ;短暂性(非延续性)动词类:decide、stop等 四、when\while\as用法-基本含义与时间指代的差异 连词 时间指代范围 从句谓语动词类型 典型错误示例 when 时间点/时间段 瞬间性/延续性均可 (无动词类型限制) as 时间点/时间段 瞬间性/延续性均可 (无动词类型限制) while 仅时间段 只能是延续性动词 While he woke up, it was 8.( ) 三个词均表“当……时候”,但时间指代和从句动词类型要求不同,具体如下: 结论:指时间点时,只能用when/as,不能用while;指时间段时,三者均可(while从句需接延续性动词)。 *与时态搭配的核心结构: 1. 长动作(过去进行时)+ 短动作(一般过去时);结构:一般过去时 + when/while/as + 过去进行时(或反之);作用:过去进行时表“背景”,一般过去时表突然发生的动作 例句:It began to rain heavily we were having dinner.(我们吃晚饭时,突然下起大雨) 2. 两个长动作同时进行:结构:过去进行时 + while + 过去进行时(while可置于句首) 例句:They were rowing boats we were climbing the hill.(我们爬山时,他们在划船) 3. 强调动作进行中另一动作突然发生:结构:过去进行时 + when + 一般过去时 例句:I was walking in the street he called me.(我正走在街上,他突然打电话给我) 例题:1. I was waiting for a bus, I met her. 解析:从句为延续性动作(waiting),指时间段。 2. _ he woke up, it was eight o'clock. 解析:从句为瞬间性动作(woke up),指时间点。 3. She was making a phone call _ I was writing an email. 解析:两个延续性动作同时进行. 二、Practice and Assessment. (一)用when/while/as填空 1. _ the teacher came in, we were talking loudly. 2. _ I was reading a book, my sister was listening to music. 3. I saw a bird _ I was walking to school. 4. _ he opened the door, the dog ran out. (二)用所给动词的适当形式填空 1. While Tom _ (play) basketball, he _ (hurt) his leg. 2. I _ (watch) TV when the light _ (go) out. 3. As they _ (walk) in the forest, they _ (see) a tiger. 4. I _ (read) a book at 8 last night, but now I _ (watch) TV. 5. They _ (not shop) at this time yesterday; they _ (go) to the park. 6.The boy _ (clean) the house when his mother _ (come) back just now. 7.What _ you _ (do) last month? And what _ you _ (do) now? 8. We _ (watch) TV from 7 to 9 last night, and I _ (finish) my homework at 10 p.m. 9.Look! She _ (sing) a song; she _ (sing) the same song at this time yesterday too. 10. He _ (decide) to buy a new bike yesterday, but he _ (not buy) it yet. (三)单项选择 1. —What _ she _ at 9 o'clock last night? —She _ a movie. Now she _ her homework. A. was; doing; was watching; is doing B. did; do; watched; does C. is; doing; is watching; did D. does; do; watches; is doing 2. We _ shopping when you called us yesterday, but we _ shopping every Sunday. A. aren't; go B. weren't; go C. don't; went D. didn't; are going 3.My mother _ dinner while I _ my homework last night, and now she _ the dishes. A. cooked; did; washes B. was cooking; did; is washing C. cooked; was doing; washed D. was cooking; was doing; is washing —_ Tom _ the house at this time yesterday? —Yes, he was. And he _ it every Saturday. ( home, work, book, shop, school, bag )A. Is; cleaning; cleans B. Was; cleaning; cleans C. Did; clean; cleaned D. Does; clean; is cleaning (四)用方框内单词构成复合词完成句子 1. My mother goes to the _ to buy vegetables every morning. 2. I put my pens and notebooks in my _ 3. My father’s _ is to teach English online. ( 1 ) 学科网(北京)股份有限公司 $