Unit 5 Great inventions Lesson 4 Thank you, Mr Pasteur!-【绿卡初中创新题】2025-2026学年八年级下册英语上课课件(冀教版·新教材)河北专版

该初中英语课件围绕“巴氏灭菌法”核心主题，涵盖pour、pasteurize等词汇，While pouring...等句型，旨在帮助学生理解概念、人物贡献及谈论书写发明。课堂通过视频介绍Louis Pasteur及巴氏灭菌法，结合日常喝牛奶习惯的问题导入，借助词汇详解、对话阅读、思维导图填空等支架，构建知识脉络。 其亮点在于整合视频、思维导图等多元资源，通过问题链（如pasteurized含义、加热原因）和任务链（阅读填空、Pair Work讨论、Writing介绍发明），培养语言能力（词汇句型应用、写作表达）和思维品质（分析问题、构建知识框架）。学生能提升英语综合运用与逻辑思维，教师可依托结构化流程和丰富活动高效教学。

第 4 课 时 Unit 5 Great inventions Lesson 4 Thank you, Mr Pasteur! 单词：pour, pasteurize, process, heat, raw, bacteria, germ, dairy, scientist, microbiologist, toast 短语：go through, get sick, a toast to sb. 句型：①While pouring a glass of milk, Jeremy notices something written on the package. ②Mr Pasteur was one of the greatest scientists. 能够理解“pasteurized”的含义与目的，回答关于概念解释、原因、人物贡献等问题。 Learning Goals 1 2 能够用英语谈论自己喜欢的发明，并书写介绍某一项发明。 3 3 Watch a video Read the questions and give your answers. A Do you drink milk every day? Why? B Do you know how the milk we drink is processed？ Yes, I do. Because it’s good for my health. Yes, I do./No, I don’t. 5 pour /pɔː（r）/ v. 倒；下大雨 pasteurize /̍pɑːstʃəraɪz/ v. 用巴氏杀菌法消毒 process /̍prəʊses/ n. 过程；流程 v. 处理；加工 heat /hiːt/ v. 加热；（使）变暖 n. 热；温度 raw /rɔː/ adj. 未经加工的；生的 bacteria /bæk̍tɪəriə/ n. 细菌 课 堂 学 习 Vocabulary germ /dʒɜːm/ n. 病菌；细菌；微生物 dairy /̍deəri/ n. 牛奶场；乳品店；乳制品 adj. 牛奶的；乳品业的 scientist /̍saɪəntɪst/ n. 科学家 microbiologist /̩maɪkrəʊbaɪ̍ɒlədʒɪst/ n. 微生物学家 toast /təʊst/ n. 干杯；敬酒；烤面包片 v. 为……干杯；烤 Vocabulary go through 经历 get sick 生病 a toast to sb. 敬某人，和某人干杯 Structures and Expressions Read the passage and answer the questions. 1 While pouring a glass of milk, Jeremy notices something written on the package. Jeremy: Hey, Mum! I just noticed a big word on the carton. PASTEURIZED. What does it mean? Mum: Well, if something is pasteurized, it means that it has gone through a process of heating to a certain temperature. Jeremy: Why do we heat milk? Mum: Raw milk has dangerous bacteria and germs. We must heat milk to 72 degrees Celsius for 15 seconds to kill them. Jeremy: How did people discover that? Mum: Many years ago, people sometimes got sick when they drank milk. Some of them even died because of the bad bacteria. Jeremy: Wow! Who created this heating process? A dairy farmer or a scientist? Mum: It was Louis Pasteur, a French microbiologist. He invented the process around 1864. Jeremy: That's a long time ago! Mum: (She nods and adds.) Mr Pasteur was one of the greatest scientists. His work saved millions of lives around the world. He was famous for his work on germs. Jeremy: (He raises his glass of milk in the air.) Well, here's a toast to you, Mr Pasteur. Thank you for making the world much safer. A According to the passage, what does the word “PASTEURIZED” mean? B How did people know their milk needed to be heated? C How did Louis Pasteur's work make the world safer? If something is pasteurized, it means that it has gone through a process of heating to a certain temperature. Many years ago, people sometimes got sick when they drank milk. Some of them even died because of the bad bacteria. By heating milk to 72 degrees Celsius for 15 seconds to kill bacteria and germs. Read the passage and complete the mind map below. 2 Raw dangerous sick died heating 72 15 French greatest scientists saved Read the passage again and complete the paragraph with the correct forms of the words. 3 invent get solve heat kill Pasteurization is a process that keeps milk safe from harmful bacteria by heating it. In the past, people sometimes ___________ sick or even died after drinking milk. To ___________ this problem, Pasteur __________ the process of pasteurization around 1864. He ____________ the milk to 72 degrees Celsius and kept it at that temperature for 15 seconds. Harmful bacteria and germs in the milk _____________, and the milk became safer to drink. got solve invented heated were killed Pair Work Work in pairs. Discuss the following questions and take notes. What's your favourite invention? Who invented it? How did it change our lives? I think it’s paper. Cai Lun invented paper in ancient China. Paper made writing and recording information much easier and cheaper. And it helped spread knowledge. Writing Write a passage to introduce an invention. Useful expressions It was invented by... It was invented in... It has made a great difference in my life/our lives. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Paper is one of the most important inventions in human history. It was invented by Cai Lun in the Eastern Han Dynasty. Before paper was made, people recorded information on bamboo slips or silk, which were either heavy or expensive. Cai Lun improved the paper-making process, using materials like bark and rags(树皮和破布). Paper has made a great difference in our lives. It speeded up the spread of knowledge through books, newspapers and magazines. Example: 1. While pouring a glass of milk, Jeremy notices something written on the package. 杰里米在倒一杯牛奶时，注意到包装上写着一些东西。 （1）由while 引导的时间状语从句，强调主句和从句的动作同时发生，且从句中多为延续性动作，常与进行时态搭配。通常在状语从句(时间、条件、让步、方式等) 中，当满足以下两个条件时，可省略从句的主语和 be 动词： ①主从句主语一致：从句主语与主句主语为同一人或事物； ②从句含 be 动词：从句谓语中包含 be 动词(am/is/are/was/were) 。 Language points while 在句子中的其他用法： ①作连词，表示“尽管”，用于句首。 ②作连词，表示“然而；却”，用于对比关系。其他引导时间状语从句的词： a. when 表示“当……时候”，既可以指时间段，也可以指时间点。 b. as 表示“一边……一边……；随着”，强调主从句动作同时进行。 c. before/after 表示“在……之前/ 后”，说明主句动作发生在从句动作之前/ 后。 例句：While walking in the park, she finds a beautiful flower. 在公园散步时，她发现了一朵美丽的花。 例句：While I agree with you, I have to consider other opinions. 尽管我同意你的看法，但我还得考虑其他观点。 例句：She is quiet and shy, while her sister is outgoing. 她文静且害羞，而她姐姐很外向。 例句：She sang songs as she walked home. 她一边走回家，一边唱歌。 （2）pour 作动词，意为“倒”，可以接双宾语，pour sb. sth. = pour sth. for sb. 给……倒……。还可引申为“倾注情感、精力”。 常见搭配：① pour out 涌出；倒 ② pour... into... 把……倒进……；向……投入…… ③ pour down (雨) 倾泻；(液体) 流下 例句：Could you pour me a cup of coffee?=Could you pour a cup of coffee for me? 你能给我倒杯咖啡吗？ 例句：She poured milk into the cup. 她把牛奶倒进杯子里。 例句：He poured his heart and soul into the project. 他把全部心血倾注到这个项目中。 例句：I’m going to pour out the tea for the guest. 我去给客人倒茶。 2. Well, if something is pasteurized, it means that it has gone through a process of heating to a certain temperature. 嗯，如果某种东西经过了巴氏杀菌，意思是它经过了一道加热到特定温度的工序。 (1) go through 的一词多义：①表示“经历(困难、痛苦、变化等) ”，强调过程的持续性或复杂性。 ② 表示“仔细检查 / 翻阅”。 ③ 表示“通过；获准”。 ④表示“消耗完某物”，宾语多为时间，金钱等。 例句：She went through a difficult time after losing her job. 她失业后经历了一段艰难时期。 例句：Go through your papers before handing them in. 交卷前仔细检查试卷。 例句：The law has now gone through. 这项法律现在已获通过。 例句：We went through all our savings to pay for the medical bills. 我们耗尽了所有积蓄来支付医药费。 （2）process n. 过程；流程 v. 处理；加工 常用搭配：in the process of doing sth. 在做某事的过程中 a process of... ……的过程 in process 在进行中 【拓展】 processed adj. 经过加工的 例句：Learning a language is a long process. 学一门语言是一个漫长的过程。 例句：We need to simplify the design process to save time. 我们需要简化设计流程以节省时间。 例句：We’re still in the process of moving to the new office. 我们还在搬往新办公室的过程中。 例句：Most of the food we buy is processed in some way. 我们买的大部分食品都用某种方法加工过。 （3）heat v. 加热；(使) 变暖 v. 热；温度 heat sth. up 加热某物 heat up 变热 at a high/low heat 在高/ 低温下 【拓展】heater n. 加热器；炉子 heated adj. 加热了的；激烈的 例句：Heat the oil and add the onions. 把油烧热后加入洋葱。 例句：Could you heat up the soup for me? 你能帮我把汤热一下吗？ 例句：The room had a comfortable heat. 房间里温度适宜。 例句：The heat of the oven should be 200℃. 烤箱温度应设定为 200 摄氏度。 3. Raw milk has dangerous bacteria and germs. 生牛奶有危险的细菌和病菌。 raw adj. 生的；未经加工的；原始的；无经验的；寒冷的 例句：I like to eat raw vegetables in salads. 我喜欢吃沙拉里的生蔬菜。 例句：The team spent weeks organizing the raw information. 团队花了几周时间整理原始信息。 例句：She is a raw beginner and needs more training. 她是个新手，需要更多训练。 例句：It had been a wet raw winter. 那是一个寒冷潮湿的冬天。 例句：The young singer has raw talent but needs professional training. 这位年轻歌手有天赋但需要专业训练。 4. Many years ago, people sometimes got sick when they drank milk. 许多年前，人们有时会因为喝牛奶而生病。 “get sick 生病”，该短语中 get为系动词，后面跟形容词 sick作表语，表示动作，不能与表示一段时间的状语连用。而 be sick表示生病的状态，可与表示一段时间的状语连用。 例句：The little boy got sick last Friday and so far he has been sick for five days. 这个小男孩上周五生病了，到目前为止他已经病五天了。 5. Well, here's a toast to you, Mr Pasteur. 好吧，敬你一杯，巴斯德先生。 toast n.干杯；敬酒；烤面包片，吐司 v. 向······敬酒，为······干杯；烘，烤 a toast to sb.敬某人，和某人干杯 例句：I'd like to propose a toast to the bride and groom. 我提议为新娘新郎干杯。 例句：I had a piece of toast for breakfast. 我早饭吃了一片吐司。 例句：They toasted the birth of their new baby with a big meal. 他们用一顿大餐来为新生儿的降生举杯庆祝。 例句： I toasted the cheese sandwiches. 我烤了干酪三明治。 根据句意及提示完成下列句子。 1. Will you ____________ (倒) the coffee? 2. I don't like ____________ (生的) meat. 3. My brother wants to be a ____________ (科学家) when he grows up. 4. The teacher explained the ____________ (过程) of experiment in class. 5. Please ____________ (加热) the oil and add the onions. Practice scientist process heat pour raw 1. Polish your passage and hand it in. 2. Search on the internet to collect more information about Louis Pasteur. Homework 绿卡图书—走向成功的通行证 Lavf58.46.101 null 94982.68 $