Unit 3 第3课时 Developing ideas(讲解课件)-【优翼·学练优】2026-2027学年八年级英语上册同步备课（外研版·新教材）

该初中英语课件围绕“发明与发明家品质”展开，通过亚历山大·弗莱明发现青霉素的故事及“意外发明”话题导入，结合预测、听力理解、对话练习等活动，搭建从信息获取到语言表达的学习支架，帮助学生逐步掌握相关内容。 其亮点在于融合语言能力、思维品质和学习能力培养，通过音频听力训练理解关键信息，对话活动（如气泡膜发明对话）提升表达能力，品质分析图表（如便利贴、莱特兄弟案例）培养分析归纳能力，语音练习（/l/ /r/发音）夯实基础。学生能提升综合语言运用和思维能力，教师可获得丰富教学素材和活动设计参考。

Do you want to be an inventor? What does IT take to become an inventor today? Let me tell you something about IT. First, you need to think wide. Spener silver once invented a type of glue, but sadly, IT was too weak. Later, Arthur learned about IT and found IT perfect for sticking notes to books. He used the glue in a new way. And now we have the posted note next. Never stop trying. The right brothers faced many failures to invent the plane, but they learned from the mistakes and never lost hope. Thanks to them, we can travel quickly. Finally, sometimes you just need some luck. One winter night, a boy left a glass of juice outside with a stick in IT. The next day, he found that the drink was frozen. He pulled IT out and tasted IT. That was the invention of the ice slowly. The unexpected inventions exhibition will open next week. There you can learn about great inventions and their inventors. The exhibition will take place at the . city museum. IT starts on the first of may and ends on the thirty years of may from nine AM to five P. M. Tickets cost thirty pounds for adults and fifteen pounds for students. Children under twelve are free. One exciting event is a talk by inventer mary Brown. You can learn all about the qualities of a successful inventor. IT starts at ten thirty AM. On the first day, Young inventors remember to come. This is a constant sound. You can hear IT at the beginning of the word light, in the middle of the word valley, at the end of the word bell, and at the beginning and end of the word level. Now you try, listen and repeat light valley bell level, okay? Speakers of some languages may find that difficult to tell the difference between this sound and another concern. Now listen carefully . to hear the difference between the following two words, and watch the position of my mouth light right, right, right. I make the the sound with the front part of my tongue behind my teeth, and I make the room sound by making my lips come out and pulling my tongue back. Now listen to some . examples and watched the shape of my mouth LED red, clash, crash, climb, crime, rice, rice, look, rock. Now you try listen again and repeat after me. LED, red, clash, crash, climb, crime, rice, rice, rock, rock, OK. In english, at the beginning of the silva is a bit different from all. At the end of a sillam, this . carefully leave feel, leave feel. and let to let tell. Did you hear about little difference? Listen again. Now, for some speakers . of english, this can change the value a little bit. Listen again, love full, love full. And loot . tool, loot tool. Now . this can actually . make the sound disappear at the end of silver. So I can say pal, or I can say pal or pal. Mile, mile. Milk, milk, cold, cold. To be careful, there's a bit of a difference. This is a constant sound. You can hear IT at the beginning of the words right and wrong, and in the middle the words sorry and arrange. Now watch my mouth. When i'm saying this sound, my lips come out and I pull my tongue back. Okay, let's practice. Repeat after me, right? wrong. Sorry. arrange. okay. For speakers of some languages, IT may be difficult to tell the difference between this sound or and another constant. Now listen carefully to the following examples and watch the shape of my mouth for each example. I'll say the word with the sound first. Wrong, long royal, loyal miss red, misled pirate pilot, pray play now let's practice. Listen carefully and repeat after me. Wrong . long . royal, loyal, misread, misled pirate . pilot. pray play. okay. Now, in standard southern english, you won't usually hear this sound at the end of a ciller or word. Listen to the following examples, card card board, hair heard, OK. Let's . practice this. Listen and repeat. Car card board here. heard. Now you will hear this sound at the end of a word. If the following word begins with a value, listen to the following two sentences, this is my car. My car is blue in the first sentence, this is my car. You don't hear the sound because it's at the end of the sentence. In the second example, my car is blue. The following word is begins with a valle, so let's practice . this call . cheries. My car is. my . car is blue, okay? 一个发现开启抗菌时代，这指的就是青霉素。1928年在英国圣玛丽医院的实验室里，亚历山大弗莱明刚结束度假，着手清洗堆得满满的培养皿。突然，他被一个培养皿上的霉斑吸引在绿色霉菌的周围，培养皿上的细菌被溶解了。弗莱明从霉菌中提取出了青霉素，并于1929年在英国实验病理学杂志发表了他的发现。然而，科学界对此一片沉默。直到1938年第二次世界大战爆发前，牛津大学生物化学家钱恩和病理学家弗洛里偶然看到九年前弗莱明的那篇文章，并决定深入研究。他们提纯了青霉素，挖掘了它的临床价值，并使其量产成为可能。弗莱明发现了自然馈赠的黄金，而弗洛里和钱恩将之变成了金矿。1945年，三人共享了诺贝尔奖。当前，恩想在英国申请专利时遭到了拒绝，最终花落美国。英国不得不在后来向美国支付巨额专利费来生产青霉素。青霉素的诞生和产业化不仅仅标志着我们进入了抗生素的时代，他还帮助盟军战胜了德军，取得了二次世界大战的胜利。我还记得一个标语写着，感谢青霉素让我们回家。 Look, look, leave light. Live right. ready? Very . rain. Unit 3 Make it happen! Developing ideas Learning Objectives In this lesson, you will: 1.understand the listening material and grasp the key information. 2.pronounce /l/ /r/ correctly and remember the letters and letter combinations that represent them. 3.talk about what you have learnt about the qualities of an inventor. Look and Say Who is this man? Alexander Fleming What did he discover? He discovered penicillin (青霉素/盘尼西林) in 1928, the world's first antibiotic (抗生素) that could kill harmful bacteria(细菌). His discovery saved millions of lives! Do you know how he discovered penicillin? Not every invention is created on purpose. Sometimes it's completely by accident! For example, in 1928, Dr Alexander Fleming forgot to clean his lab before going on a holiday. Later, he discovered penicillin from an uncleaned Petri dish. It's now one of the most used medicines in the world! DID YOU KNOW? 特意地 完全地 偶然；不经意 培养基 Predict What is it? It seems like a poster or an advertisement. What is it about? It’s about an unexpected inventions exhibition. What’s its purpose? It calls on people to visit the exhibition. Listen to the news radio. What is its main purpose? a To encourage young people to become inventors. b To introduce some different invention exhibitions. c To invite people to come and see an invention exhibition. d To explain the history of some inventors and inventions. Listen again and complete the advertisement. inventors 30 May Students Free qualities 10:30 Do you know how the following things are invented? post-it note the first airplane ice lolly Listen to the talk and complete the chart. Qualities 1___________ widely. Never stop 4________________. Some good 6________________. Invention examples Spencer Silver invented a type of ²______. But it was too weak. Later Arthur Fry found it perfect for sticking notes to 3_________. This invention was the Post-it Note. The Wright Brothers learnt from 5_________ and never lost hope. A boy left a glass of 7_________outside with a stick in it. The next day, he found it was frozen. He tasted it and invented the ice lolly. Think glue books trying mistakes luck juice Listen again. Then talk about how the speaker opens the talk. Learning to learn Opening a talk or speech A good start can quickly catch the listeners' attention. We can start by addressing the listeners directly, asking an interesting question, telling a story or sharing a famous saying. 对……发表演说 Work in pairs. Act out a conversation about an invention and its inventor. A Student A You have just heard about the invention of bubble wrap. You want to know more about it. Ask Student B questions about it. You know the following information: Name of the invention: bubble wrap Time: 1957 Inventor: Alfred Fielding and Marc Chavannes 气泡膜 B Student B Student A wants to know about the invention of bubble wrap and its inventor. He / She will ask you some questions. Answer the questions with the following information: Name of the invention: bubble wrap Time: 1957 Inventor: Alfred Fielding and Marc Chavannes Invention story: Bubble wrap was first invented as a type of wallpaper. However, the product failed. But the inventors didn't give up. They started thinking of other uses and found more than 400! Several years later, when they decided to use it as packaging material, they found success. With bubble wrap, a computer company could ship the computers safely. Then, a lot of other businesses also started using bubble wrap. ... is a great invention. Do you know the story behind it? Tell me about... What did it take for... to come up with...? Useful expressions-------------------------------------------------------------- The inventors have got great qualities. First, they were... Next, they never... Finally, they... A A B B Have you heard of ...? Yes, it’s a(n)... Can you tell me more about ...? Sure. It was invented by... Sample Conversation A: Bubble wrap is a great invention. Do you know the story behind it? B: Sure, it was invented by Alfred Fielding and Marc Chavannes in 1957. A: Tell me about how they came up with this idea. B: They first invented bubble wrap as a type of wallpaper, but the product failed. A: What did it take for them to come up with the packaging solution? B: They never gave up. They tested over 400 uses! Finally, they realized it was perfect for protecting fragile(易碎的) things during shipping. A: The inventors have got great qualities. B: Yes! First, they were creative. Next, they never accepted failure. Finally, they turned a failure into a worldwide success! Talk about what you have learnt about the qualities of an inventor in this section. Language Points 1. Sometimes it's completely by accident! completely adv. 完全地；彻底地 complete adj. 完整的；完全的 v. 完成；使完整 e.g. The glass is completely empty. She completely forgot my birthday. e.g. I have a complete collection of Harry Potter books.（我有一套完整的《哈利·波特》丛书。） Please complete this application form. （请完成这份申请表。） 2. ... he found it was frozen. freeze v. （使）结冰；（使）冻结 （ freeze— froze —frozen） e.g. The lake froze last winter.（去年冬天湖面结冰了。） Freeze the meat to keep it fresh.（把肉冷冻起来保鲜。） be frozen 被冻住；被冻结 e.g. The vegetables were frozen to keep them fresh. （这些蔬菜被冷冻保鲜。） His bank account has been frozen by the court. （他的银行账户被法院冻结了。） 3. We can start by addressing the listeners directly... address v. 对……讲话；发表演说 e.g. The president will address the nation tonight. （总统将于今晚向全国发表讲话。） address 作动词还可意为“处理；解决（问题）” e.g. We need to address this problem immediately. （我们需要立即解决这个问题。） address 作名词，意为“地址” e.g. What is your home address?（你的家庭住址是什么？） Phonetics in use Read the following words and pay attention to the pronounciation of bold letters. /l/ learn let /r/ remember Mary Listen and repeat. /l/ look leave light live /r/ right ready very rain 声 明 本文件著作权为创作公司所有，仅限于教师教学及其他非商业性和非盈利性用途。如发现盗用、转卖、网络传播等侵权行为，本公司将依法追究其相应法律责任。 部分素材选自网络，如有争议，请联系删改。 null 54198.914 null 81653.5 null 21211.408 $