Unit 5 Nature Temper Grammar Focus SectionA(4a-4d) 课件 2025-2026学年人教版八年级英语下册

Grammar Foucs The Past Continuous Tense UNIT 5 Nature’s Temper 1.7.2013 Hello everyone, welcome to our English class. Today, we're diving into Unit 5, "Nature’s Temper." We'll be focusing on a very important grammar point: the Past Continuous Tense. By the end of this lesson, you'll be able to use it confidently to describe actions happening in the past. Let's get started! ‹#› Learning objectives 1.能够理解过去进行时的表意功能，分析句子结构特征和定义； 2.能够结合例句识别 when 和 while 引导的时间状语从句，理解其表意功能及区别； 能够正确使用过去进行时及从属连词 when 和 while 造句、补全语篇，并基于语法板块语篇的内容，准确描述过去某一时刻正在发生的动作。 Preview new words and phrases power/ˈpaʊə(r)/n. 电力供应；能量；力量 supply/səˈplaɪ/n. / v.&n. 供应（量）； thick/θɪk/adj. 厚的；浓密的 soundly/ˈsaʊndli/adv. （睡觉）酣畅地；可靠地；完全彻底地 beat/biːt/v. / n.v. (beat) 敲；打n. 敲击；跳动 hide/haɪd/v.(hid /hɪd/) 躲藏；隐蔽  tornado/tɔːˈneɪdəʊ/n. 龙卷风；旋风 1.7.2013 Let's start by checking what you've previewed. Here are some key vocabulary words and sentences from the text. Please read them aloud and make sure you understand their meanings and pronunciations. This will help us better understand the text we're about to read. ‹#› land on the coast   （台风/风暴）登陆海岸 go out   （电源、灯）熄灭；断电 look up   查阅；向上看 thick black clouds   厚厚的乌云 beat against   （风、雨等）拍打；冲击 at once   立刻；马上 hide from   躲避；避开 step outside   走到外面；出门 bring somebody closer together  让某人靠得更近；使某人团结起来 Preview new words and phrases 预习结果展示 课前：自主预习完成以下任务 1. 预习P45,勾画生字词，查单词表或字典做标注,学习识记重点单词。然后根据所学词汇完成下面的句子。 ①After the heavy rain stopped, the little bird slept 1. ___________ (sound) in its warm nest. ② The poor little rabbit 2. ______________ (hide) under the big tree when the heavy flood suddenly came. ③ The heavy rain 3. _____________ (beat) against the roof loudly when the thunderstorm hit our town last night. ④ After the snowstorm, a 4. _________ (厚的) layer of snow covered the roads. ⑤ When the 5. ________ (电力供应) went out suddenly, my little sister and I were reading storybooks. Exploration 课中： Engagement独立思考：现在进行时的定义、结构和标志词分别是什么？根据标志词填空和完成句型变化。 ①What_________you __________(do)now?  （用at 5:00 this afternoon替代now）→   What_________you __________at 5:00 this afternoon? ②She ____________( travel) on the rain at this moment.（用at that moment替代at this moment.）→ She ______________( travel) on the rain at that moment. ③The scientists are researching the deep sea these days.（用those days替代these days. ）→    The scientists________________ the deep sea those days. were doing are doing is travelling was travelling were reachering Exploration Task1小结：现在进行时基本结构为：主语+________ ______ +其他； 表示此刻正在发生的事或动作或现在阶段一直持续的动作或事情； 那么过去进行时呢？请完成以下表格并小组交流 过去进行时(Past continuous tense) 构成形式 主语+ ________ /_________ +_____________ 功能和意义 *描述过去某一时刻______________的动作 *描述过去某一段时间__________________的动作 标志 瞬时标志：   阶段标志： _________那些日子______________在那段时间 all day yesterday 昨天一整天 ...... 其他： 根据语境判定；问答时态一致；while+进行时 动词特点 多是 延续性动词 非延续性动词 (✔选择题) am/is/are doing was were doing 正在发生的事 一直持续发生 at that time; at that moment;at the time of 7:00; at 8:00 yesterday morning those days during that time ✔ Read the sentences carefully and discuss the differences. when vs while Explanation Task 2认真朗读以下句子，完成以下表格及习练 While we were driving home, the strong winds started. We were driving home when the strong winds started. My children and I were reading together when the typhoon hit. While my children and I were reading together , the typhoon hit. When I was writing a letter, the strong winds hit my window. While I was writing a letter, the strong winds hit my window. When 后面加______________ 动词和___________动词； While 后面加______________ 动词 延续性 短暂性 延续性 1.7.2013 Now, let's tackle the tricky part: 'when' versus 'while'. Look at these sentences. In each pair, what is the long action and what is the short, interrupting action? Notice how 'while' often introduces the long, ongoing action, and 'when' can introduce either the long action or the short, interrupting one. This is a key difference. ‹#› When&While 用法和区别 when&while 相同点 都可以引导____________状语从句; when&while 不同点 while引导的从句中，动词通常需要使用___________性动词,且习惯用__________时态 when引导的从句可以用__________动词，也可以用__________动词，时态随意。 秒杀口诀 长动 ________；短动________， 进行________，突发__________。 时间 延续 进行 延续 延续性 短暂性 while when while when when vs while Explanation Practice1 ：look and say with “when or while” Evaluation Evaluation Practice1 ：look and say with “when or while” Practice 2: Combine(合并) the sentences with "when" or "while", change the tenses if necessary. Evaluation 1. My parents packed the supplies. I moved our things off the floor. 2. The power went out. My father and I made dinner. ______________________________________________________ ①While my parents were packing the supplies, I was moving our things off the floor. ③When my parents packed the supplies, I was moving our things off the floor. ②My parents were packing the supplies while/when I was moving our things off the floor. ④My parents were packing the supplies when I moved our things off the floor. 1.7.2013 Alright, let's practice what we've learned. Here are two pairs of sentences. Your task is to combine each pair using 'when' or 'while'. Remember to change the verb tenses if needed to show which action was ongoing and which was the interruption. Let's see some of your answers. ‹#› Practice 3: 独立完成4b Evaluation 1. 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.   eg: I was doing my homework when the typhoon landed on the coast. eg：My father and I were making dinner when the power went out. eg: Kate was writing a letter when her brother called to warn her of the storm. eg：While my parents were packing the supplies, I was moving our things off the floor. eg: I was sleeping soundly while it was raining cats and dogs. Read the passage in 4c and answer the questions below. Q1.Which of the following is the best title for the passage? A.The Scary Tornado That Hit the Town B.The Storm That Brought People Closer Together C.Jenny’s Fun Day with Her Family D.How to Stay Safe During a Tornado Q2.Why did Jenny’s little sister stop crying? A.Dad gave her chocolate and told her a fun story B.The tornado passed quickly and the sun came out C.Jenny told her they were all safe in the safe room D.Other people outside helped calm her down Reading Comprehension about natural disaster Evaluation 1.7.2013 Let's move on to reading comprehension. Based on the passage you just read, answer these two questions. The first one asks for the best title, which tests your understanding of the main idea. The second one is a detail question. Take a moment to think about your answers. ‹#› Complete the passage with was, were, when, or while. Evaluation 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 Imagine that you are a reporter. Interview a member of Jenny’s family and find out what he or she was doing around the time of the tornado. Elaboration A: What were you doing when the tornado hit?  B: My family and I were hiding in a safe room.  A: What were you doing while you were waiting there? B: Oh, while I … eg： A: What were you doing when the tornado hit?  B: My family and I were hiding in a safe room.  A: What were you doing while you were waiting there? B: Oh, while I was waiting there, I started to cry. Then Dad gave me some chocolate and told me that we were hiding from an angry lion. Soon, I laughed again. Imagine that you are a reporter. Interview a member of Jenny’s family and find out what he or she was doing around the time of the tornado. Elaboration $