Unit 6 Lesson 1 Let's do an experiment（教学课件）英语新教材冀教版九年级上册

该初中英语课件围绕“气压”科学概念及相关词汇展开，通过“倒置水瓶实验”问题导入引发学生讨论，从新词汇学习到实验步骤排序、原理复述，再到语言点解析，构建从具体操作到抽象原理的学习支架。 其亮点是以实验探究为主线，通过角色扮演、步骤复述等活动培养语言能力，引导学生分析气压原理提升思维品质，家庭实验作业结合生活场景增强学习能力。教师可借助结构化活动提升教学效率，学生在实践中深化知识理解与应用。

Unit6 Looking into science Lesson1 Let’s do an experiment! Learning Objectives Knowledge Objectives • Understand the scientific concept of air pressure and its role in everyday phenomena. • Master key science vocabulary to describe scientific processes accurately. Ability Objectives • Explain the experiment's procedure and its scientific principle clearly in simple English. • Apply the new vocabulary in real contexts through role-play and short oral presentations. 1.7.2013 Before we start, let's be clear about our goals for today. By the end of this lesson, you will understand what air pressure is and be able to use new words to talk about science experiments. You'll also be able to read a dialogue and explain the experiment in English. ‹#› Lead in 01 02 03 Post-listening 04 Summary 05 Language points 06 Exercises 07 Homework 08 Contents While-listening New words 1.7.2013 首先，我们来认识“杂交水稻之父”袁隆平。他毕生的梦想就是“让所有人远离饥饿”。通过不懈努力，他成功培育出杂交水稻，极大地提高了粮食产量，不仅解决了中国的吃饭问题，也为世界粮食安全做出了巨大贡献。他勇于创新、扎根田野的精神，激励着我们每一个人。 ‹#› PART 01 New words n. 罐子；一罐（的量） n. 硬纸板 n. 正面 aux.（在疑问句中同I和we连用， 表示提出或征求意见）；将要 n. 雨衣 adv. 紧紧地；牢固地 v. 得出结论；结束 jar /dʒɑː(r)/ cardboard /ˈkɑːdbɔːd/ upside /ˈʌpsaɪd/ shall /ʃəl/ raincoat /ˈreɪnkəʊt/ tightly /ˈtaɪtli/ conclude /kənˈkluːd/ New words PART 02 Lead in Will the water pour out or stay in the jar? If you cover a full jar of water with a piece of cardboard and then hold it upside down, what will happen? Talk with your partner.  1 Let’s do an experiment! Lead in 倒置 倾倒 PART 03 While-reading While-listening 3 Listen to the conversation and answer the questions. A What keeps the water in the jar? B Why does Danny put on his raincoat? C What does Danny conclude? While-listening 3 Listen to the conversation and answer the questions. A What keeps the water in the jar? The force of the air（The air pressure ） While-listening 3 Listen to the conversation and answer the questions. B Why does Danny put on his raincoat? Because he thinks the water will pour out and he will get wet. While-listening 3 Listen to the conversation and answer the questions. C What does Danny conclude? He concludes that air is stronger than he thought. While-listening 4 Listen to the experiment and put the sentences in the correct order. □Put a piece of cardboard over the jar. □The jar of water is upside down, but the water stays in the jar. This is because air pressure pushes the cardboard onto the jar. □Fill the glass jar with water. □Turn the glass jar over quickly. Hold your hand on the cardboard for a few seconds. □Remove your hand from underneath the jar. What happens? □There is more air pressure outside the jar than inside it. 2 5 1 3 4 6 Retell the procedures of the experiment. Cover the top with a piece of cardboard. Take the hand off the cardboard. Fill the jar with water. Turn the jar upside down and hold it there. The air pressure helps the cardboard hold the water in the jar. While-listening PART 04 Language points Language points 1.Let's do an experiment. 让我们做个实验吧。 experiment n. 试验，实验 v.做实验 do/make/carry out an experiment做实验 experiment on/with sth.用…… 做实验；在…… 身上做实验 例句：It's wrong to experiment on/with the animals. 在动物身上做实验是错误的。 2.Then I turn the jar upside down and take my hand off the cardboard. 然后我将广口瓶倒置并将我的手从纸板上拿开。 (1) turn...upside down(=turn over) 把……翻转；倒过来 upside down正面朝下 right side up 正面朝上 Language points 2.Then I turn the jar upside down and take my hand off the cardboard. 然后我将广口瓶倒置并将我的手从纸板上拿开。 (2) take …off… 把……从……拿开 take off 摘下; 脱下; (飞机等)起飞 take up 开始从事；占据 (时间 / 空间) take down 记下；写下 take out 取出；拿出 take care 小心，当心 take care of 照顾；照料 take place 发生 take part in 参加 (活动) take turns 轮流 Language points Language points 3.You think the water will pour out, Danny. 你认为水会流出来，丹尼。 pour out 涌出；倒出；使流出 pour …into…把……倒进…… 例句：The tea poured out. 茶水溢了出来。 Pour the milk into the bottle. 把牛奶倒进瓶子里。 Language points 4. Shall we do the experiment and find out? 我们来做这个实验一探究竟好吗？ shall aux.将要 ①Shall we…? 我们…… 好吗？ （用于第一人称 we, 提建议，征求对方意见） 注意：只能用 Shall we，不能说 Shall you ②Shall I …? 我要…… 吗？（主动提出帮忙） Shall I open the window?要我打开窗户吗？ ③正式承诺、规定 You shall follow the rule.你应当遵守规则。 Language points 5.Danny closes his eyes tightly. 丹尼紧紧地闭上双眼。 tightly adv. 紧紧地；牢固地 tight adj. 紧的 例句:She closed the window tightly. 她把窗户关得严严实实。 Language points 6.The force of the air keeps the water in the jar. 空气的力量让水待在广口瓶里。 force n. 力；力量 v. 迫使；强迫 force sb. to do sth. 迫使某人做某事 例句： It’s impolite to force others to do something unpleasant. 迫使他人做令人不高兴的事情是不礼貌的。 Language points 7. I conclude that air is stronger than I thought. 我总结空气要比我想象的更强大。 conclude v.总结，得出结论 conclusion n.总结 make/draw a conclusion 做总结 come to a conclusion 得出结论 in conclusion 总之，最后 例句：We can conclude that he is right. 我们可以得出结论他是对的。 PART 05 Summary Summary Key Vocabulary experiment: A scientific test to discover facts. pressure: The force of air or liquid pushing. conclude: To form an opinion after testing. tightly: Firmly fixed or closed. Key Concept Air Pressure! It’s the invisible force created by the weight of the air all around us. This force pushes equally in all directions and is strong enough to counteract gravity! The Jar Trick The air pressure pushing up on the cardboard from the outside of the jar was stronger than the weight of the water pulling down from the inside. It’s like an invisible hand holding the card in place! ✨ Remember: Science is all about discovering the invisible forces that shape our world! ✨ 1.7.2013 Let's summarize what we've learned. We've mastered key vocabulary like 'experiment', 'conclude', and 'pressure'. Most importantly, we now understand the powerful concept of air pressure and how it explains why the water stays in the jar. ‹#› PART 06 Exercises Exercises 1. Let's do an __________ (experiment) to test our idea. 2. After observing the results, we can ________ (conclude) that air pressure is strong. 3. He held the cardboard ________ (tight) against the jar. 4. Turn the jar ___________ (upside down). 5. — _______ we go to the park tomorrow?—That sounds great. Fill in the Blanks experiment conclude tightly upside down Shall 1.7.2013 Now it's time to practice. Let's look at the exercises on the screen. First, answer the questions about the conversation. Then, try to put the sentences in the correct order to describe the experiment. This will help you remember the steps and the key concepts. ‹#› PART 07 Post-reading Post-listening Let’s role-play ! 2. Listen to the conversation and role-play the experiment. Post-listening 5. Discuss in groups. Describe an experiment you have done. I have done an egg‑floating experiment at home. First, I poured some water into a glass. I put an egg in it, and the egg sank to the bottom. Next, I added lots of salt into the water and stirred it well. Slowly, the egg began to rise and float in the middle of the glass. Salt makes the water denser. Denser water gives more upward force to hold the egg up. I found this experiment quite amazing. Post-listening 6.Listen to the song and sing along. PART 08 Homework Homework 01 Try the jar experiment at home with your parents! Remember to handle water and glass carefully to avoid spills or accidents. 02 Write a 50-word paragraph describing your experiment. Include at least 3 new words to show what you've learned. 1.7.2013 Here is your homework for today. First, try the experiment at home. Second, write a short paragraph about your experience, using the new words we learned. Finally, please preview the new words for our next lesson. ‹#› Thank you! null Other 117606.93 null Other 37250.66 null Other 126985.805 null Other 67682.055 $