Unit 5 Section A Grammar 课件 2025-2026学年人教版八年级英语下册

Unit5 语法专项课件 （过去进行时） 很遗憾听到这个消息。 做……是危险的 出事故 把.....从.......移走 雨下得很大 封住窗户 储存食物和水 应急物资 听说 为.....做准备 准备好做某事 I’m sorry to hear that. It’s dangerous to do sth. get into an accident (got) move...off... rain hard/heavily cover the windows store food and water emergency supplies hear about/of (heard) make preparations for... (made) make preparations to do sth. 3:00 p.m. yesterday ---What _____ she ______ at _____________the rainstorm? --- She___________________. doing was was shopping a rainstorm the time of ---What _____ they ______ at _____________the rainstorm? --- They___________________ at that moment. doing were were watching TV the time of She was shopping at the time of the rainstorm. They were watching TV at 9 last night. 某个时间段 某个时间点 过去进行时表示过去某一时刻或某段时间内正在进行或发生的动作。 定义 常和表示过去的时间状语连用： then(当时); at 7 last night; at that time\moment ; at the time of...; from 7 to 9 last night; during... 过去进行时的结构 否定形式 问句形式 was/were + not + V-ing Was/Were+主语+V-ing? was/were + V-ing He was sleeping at that time. He wasn’t sleeping at that time. Was he sleeping at that time? 肯定形式 一般过去时 过去进行时 相同点 表示过去发生的动作 不同点 表示过去的时间里发生的动作，往往已经完成 表示在过去某一时刻或某一段时间正在进行的动作 一般过去时和过去进行时的区别： 课本P107 过去进行时-part2 用所给词的适当形式填空 1. They ____________ (play) basketball at that time yesterday. 2. My sister ____________ (read) a book last night. 3. I ____________ (not watch) TV last night. I did my homework. 4.—What ____________ she ____________ (do) when you called her? —She ____________ (clean) her room. 5. We ____________ (have) an English class at 9:00 yesterday morning. 6. He ____________ (go) to the park with his friends last Sunday. were playing read didn’t watch was doing was cleaning were having went 都可表示“当……的时候” 引导时间状语从句。 when 和 while 的区别  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、learn、drink、eat、walk、wait、watch、stand、lie、keep 等。 短暂性动词指动作极为短暂，瞬间结束。     如: start、begin、hit、knock、open、close、arrive、reach、get to、leave、come、go、finish、borrow、buy等。 1) 延续性动词和短暂性动词（非延续性动词） We were talking when the teacher came in. They arrived when/while we were having dinner. 短暂性动词 延续性动词 when引导的时间状语从句中，谓语动词可以是短暂性动词, 也可以是延续性动词; 而while引导的时间状语从句中，谓语动词必须是延续性动词。 We were talking when the teacher came in. They arrived when/while we were having dinner. 主句 when从句 短暂性动词 延续性动词 when 过去进行时 一般过去时 过去进行时 一般过去时 They arrived when\while we were having dinner. 延续性动词 主句 while从句 While 后 只能接 延续性动词 while 一般过去时 过去进行时 sleep watch TV I was sleeping my sister was watching TV While 表示两个动作同时进行，只能用while “与此同时” last night They arrived when/while we were having dinner. 延续性动词 主句 while从句 一般过去时 过去进行时 过去进行时 过去进行时 I was sleeping while my sister was watching TV. 1.He came in ________we were watching TV. 用 when 和 while 填空 2.It was raining _______we got off the bus. 3._______ I was eating, my mother was cleaning the kitchen. while when while 合并句子 The phone rang. My sister was sleeping. My sister was sleeping______the phone rang. ______my sister was sleeping, the phone rang. While when 主句 when从句 过去进行时 一般过去时 一般过去时 过去进行时 主句 while从句 一般过去时 过去进行时 过去进行时 过去进行时 We were talking when the teacher came in. They arrived when/while we were having dinner. I was sleeping while my sister was watching TV. 语法点单句特训。 (　　)6.My brother 　　　　a film at 3 o’clock yesterday afternoon while I was sleeping. 　　　　　　　　　　　　　 　　　　　　　　　　　　　 　　　　　　　　　　　　　 A.watched　　 B.will watch　　 C.was watching (　　)7.—What were you doing at 7:30 last night? —I 　　　　for my report when you called, because I have to hand it in today.  A.prepare　　 B.am preparing　　 C.was preparing C C (　　)8.—　　　　 did the rainstorm come, Mr Li?  —While we 　　　　a chemistry lesson yesterday afternoon.  A.When; have had　　 B.When; were having　 C.While; are having　 (　　)9.She was playing the piano 　　　　her mother came in this morning.　　  A.when　　 B.while　　 C.if (　　)10.I saw an artist drawing yesterday 　　　　I was walking on the beach.  A.while　　 B.as soon as　 C.until　　 B A A I did my homework. The typhoon landed on the coast. 2. The power went out. My father and I made dinner. 3. Kate wrote a letter. Her brother called to warn her of the storm. 4. My parents packed the supplies. I moved our things off the floor. 5. I slept soundly. It rained cats and dogs. 4b Combine each pair of sentences using when or while. 登陆 go out 中断；熄灭 warn sb. of sth. 警告某人某事 打包物资 sleep soundly 熟睡 倾盆大雨 I did my homework. The typhoon landed on the coast. 2. The power went out. My father and I made dinner. 3. Kate wrote a letter. Her brother called to warn her of the storm. 4. My parents packed the supplies. I moved our things off the floor. 5. I slept soundly. It rained cats and dogs. 圈出两个句子的谓语动词 判断： 短动作（瞬间发生） 长动作（持续一段时间） 短动作 长动作 短动作 长动作 长动作 短动作 长动作 长动作 长动作 长动作 when while while when while 4b Combine each pair of sentences using when or while. 选连词：when 长动作/短动作都可以 while 只跟长动作 两个都长用 while(过去进行时) I did my homework. The typhoon landed on the coast. 2. The power went out. My father and I made dinner. 3. Kate wrote a letter. Her brother called to warn her of the storm. 4. My parents packed the supplies. I moved our things off the floor. 5. I slept soundly. It rained cats and dogs. when while while when while 变时态： 长动作 → was/were + doing 短动作 → did（一般过去时） I was doing my homework when the typhoon landed on the coast. The power went out while my father and I were making dinner. Kate was writing a letter when her brother called to warn her of the storm. My parents were packing the supplies while I was moving our things off the floor. I was sleeping soundly while it was raining cats and dogs. 4c Complete the passage with was, were, when, or while. When Jenny looked up, thick black clouds were forming in the sky, and the rain ______ beating against their roof. "Quick, this way," said Dad. The family ran to the safe room at once. ______ they were waiting, Jenny's little sister started to cry. Dad gave her some chocolate and told her that they ______ hiding from an angry lion. Soon, she was laughing again. At last, the storm passed. ______ they stepped outside, they found the sun shining. People were asking one another if they were safe while some ______ starting to clear the streets. Jenny smiled. The tornado was scary, but it also brought everyone closer together. was While were When were 抬头看 浓密的乌云 拍打;撞击 躲避 =each other 互相 形成 bring sb. closer together 使某人更亲近 熄灭；中断；外出 提醒某人注意某事 熟睡 倾盆大雨 抬头看；查阅 浓密的乌云 拍打；撞击 立刻；马上 躲避... 相互；彼此 发现某人/某物正在做某事 go out (went) warn sb. of/about sth. sleep soundly (slept) rain cats and dogs. look up thick black clouds beat against (beat) at once =right away=right now hide from (hid) one another=each other find sb./sth. doing sth. (found) $