Unit 5 Lesson 4 Thank you, Mr Pateur!课件 2025-2026学年冀教版英语八年级下册

Unit 5 Great inventions Lesson 4 Thank you, Mr Pasteur! 1 学习目标 01 能读懂对话，理解”pasteurized”的含义与目的 02 能在语境中理解并正确使用与“发明-过程-结果”相关的表达与词汇 03 能围绕“发明改变生活”进行口头讨论 2 New words pour pasteurize process heat raw bacteria /pɔːr/ /ˈpæstʃəraɪz/ /ˈprɑːses/ /hiːt/ /rɔː/ /bækˈtɪəriə/ v. 倒；下大雨 v. 用巴氏灭菌法消毒 n. 过程，流程 v. 处理，加工 v. 加热，（使）变暖 n. 热，温度 adj. 未经加工的，生的 n. 细菌 Pasteur 巴斯德 复数： 单数：bacterium 3 New words germ dairy scientist microbiologist toast /dʒɜːrm/ /ˈdaɪəri/ /ˈsaɪəntɪst/ /ˌmaɪkroʊbaɪˈɑːlədʒɪst/ /toʊst/ n. 病菌，细菌，微生物 n. 牛奶场，乳品店，乳制品 adj. 牛奶的，乳品业的 n. 科学家 n. 微生物学家 n. 干杯，敬酒，烤面包片 v. 为......干杯，烤 science n.科学 scientific adj.科学的 microbiology n.微生物学 microbial adj.微生物的 4 Phrases go through get sick a toast to sb. 经历 生病 敬某人，和某人干杯 5 1 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. Because it gives me calcium for strong bones and teeth. Yes. /No.By heating it to kill bad bacteria (pasteurization) . 7 2 Read the conversation and answer the questions. 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? while或when引导的时间状语从句，主从句主语一致，且谓语动词含有be动词时，可以把从句中的主语和be动词省略 =What’s the meaning of it ? 他是什么意思 经历 8 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 discovered this heating process? A dairy farmer or a scientist? Mum: It was Louis Pasteur, a French microbiologist. He discovered the process around 1864. 持续15秒 生病 die-died-died v.死 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. raise 被动举起 rise 主动上升 数百万的 be famous for 因......而出名 a toast to sb. 敬某人，和某人干杯 因......感谢某人 10 A According to the passage, what does the word “PASTEURIZED” mean? If something is pasteurized, it means that it has gone through a proess of heating to a certain temperature. B How did people know their milk needed to be heated? Many years ago, People sometimes got sick or died after drinking raw milk. C How did Louis Pasteur’s work make the world safer? By heating milk to 72 degrees Celcious for 15seconds to kill the bacteria and germs. 3 Read the passage again and complete the paragraph with the correct forms of the words. 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 4 Work in pairs. Discuss the following questions and take notes. What’s your favourite invention? Who invented it? How did it change our lives? 5 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. Summary What does it mean?= What’s the meaning of it? 它是什么意思？ go through 经历 in a process of doing sth. 在做某事的过程中 get sick 生病 millions of 数十亿的 be famous for... 因......而出名 be famous as... 作为......而出名 be famous to... 对......来说是有名的 7. a toast to sb. 敬某人 8. Thank you for doing sth. 因做某事感谢某人 15 Language Points 1. While pouring a glass of milk, Jeremy notices something written on the packet. 杰里米在倒一杯牛奶时，注意到包装上写着一些东西。 pour ... into ... 把......倒入..... pour ... over ... 把......倒在......上面 e.g. 把油倒入煎锅内加热。 pour the oil into a frying pan and heat. e.g. 把酱汁浇在意大利面上。 Pour the sauce over the pasta. be connected with... 与......有关联 16 Language Points 2. Well, if something is pasteurized, it means that it has gone through a process of heating to a certain temperuture. 嗯，如果某种东西经过了巴氏杀菌，意思是他 经过了一道加热到特定温度的工序。 go through 经历，仔细察看，检查 e.g. They went through many hardships during the war. 他们在战争期间历经千辛万苦。 e.g. I carefully opened the cookbook and went through it. 我小心地打开食谱，仔细地看了一遍。 17 Language Points 2. Well, here’s a toast to you, Mr.Pasteur. 好吧，敬你一杯，巴斯德先生。 a toast to sb. 敬某人，和某人干杯 e.g. I’d like to propose a toast to the bride and groom. 我提议为新娘新郎干杯。 e.g. I had a pieces of toast for breakfast. 我早饭吃了一片吐司。 toast n.烤面包片 v.为......干杯 18 Exercise 一、根据句意及首字母提示写单词 1. We must kill the dangerous b________ in raw milk. 2. Louis Pasteur was a great French m_______________. 3. The milk is p____________, so it is safe to drink. 4. Many people d________ of illness because of bad bacteria long ago. 5. His work s________ millions of lives all over the world. acteria icrobiologist asteurized ied aved 19 谢谢欣赏 20 Lavf59.27.100 Packed by Bilibili XCoder v2.0.2 $