Unit 6 Lesson 1 Let’s do an experiment 课件 2026-2027学年冀教版九年级英语上册

该初中英语课件围绕“气压”核心知识点，通过“猜谜导入”引出“air”和“air pressure”，读前激活学生对空气性质（如invisible、oxygen）及作用（吹树叶、放风筝）的已知认知，读中以Danny、Jenny和Brian的实验对话展示操作步骤与结果，构建从已知到探究未知的学习支架。 其亮点在于融合科学探究与语言学习，通过实验对话听力、角色扮演（如Danny紧张戴雨衣）提升语言理解与表达能力（语言能力），引导学生预测、观察、结论培养科学思维（思维品质），搭配小组讨论、实验步骤排序、科学歌曲等活动激发学习兴趣（学习能力）。学生能在实践中提升综合素养，教师可借助丰富活动高效开展教学。

Looking into science Unit 6 1 Let’s do an experiment Understand the concept of air pressure through a hands-on experiment. Use key vocabulary (e.g., air pressure, cardboard, jar, conclude) to describe the experiment and its results. Practice listening comprehension by following a dialogue about the experiment. Develop scientific thinking by making predictions, observing, and drawing conclusions. Learning Objectives Towards the end of this lesson, you will be able to: Lead-in Let’s guess “What am I”? I am invisible, but I can hold up water. I am related to air. I push on everything around you. air pressure I am invisible. I am everywhere. People will die without me. People breathe with me. air Pre-reading Let’s share What do you already know about air? Can air do “strong” things? invisible oxygen colorless light Pre-reading Can air do “strong” things? blow leaves hold up a kite fill a balloon If I hold a jar filled with water and turn it upside down. What will happen? While-reading Read the passage quickly and answer the following questions. 1 Who are the characters in the dialogue? 2 What is the main idea of the passage? 3 What is the experiment? What is the result? While-reading Danny, Jenny and Brian are in the lab. Brian: Let's do an experiment. I fill a jar with water. I cover the top with a piece of cardboard and hold it there. Then I turn the jar upside down and take my hand off the cardboard. Can you guess what will happen? Danny: I think the floor will get wet. We should do this experiment outside, Brian. Jenny: I think the cardboard will hold the water. Danny: I don't think so. Jenny: You think the water will pour out, Danny. I think the water will stay in the jar. Shall we do the experiment and find out? While-reading Brian: Good idea, Jenny. That's called the scientific method. Jenny: Brian can do the experiment over your head and I know you won't get wet. Danny: Well, let's try it! Brian: Are you ready, Danny? Danny: No! Wait! (He puts on a raincoat and sits down.) Now I think I'm ready. Jenny: Brian, take your hand off the cardboard. Danny: No! (Danny closes his eyes tightly, and Brian takes his hand off the cardboard. The water stays in the jar.) While-reading Danny: How is that possible? Brian: The force of the air keeps the water in the jar. It is strong enough to hold the water. Danny: Wow! Brian: So what have we discovered? Jenny: We have discovered that the air pressure pushes the cardboard onto the jar. Brian: Right. What can you conclude, Danny? Danny: I conclude that air is stronger than I thought. While-reading Read the passage quickly and answer the following questions. 1 Who are the characters in the dialogue? 2 What is the main idea of the passage? Danny, Jenny and Brian. It introduces an experiment about air pressure. Read the passage quickly and answer the following questions. 3 What is the experiment? What is the result? Brian: Let's do an experiment. I fill a jar with water. I cover the top with a piece of cardboard and hold it there. Then I turn the jar upside down and take my hand off the cardboard. Can you guess what will happen? Brian: The force of the air keeps the water in the jar. It is strong enough to hold the water. Experiment: I fill a jar with water. I cover the top with a piece of cardboard and hold it there. Then I turn the jar upside down and take my hand off the cardboard. Result: The water stays in the jar. The force of the air keeps the water in the jar. While-reading While-reading Listen to the conversation and answer questions. What keeps the water in the jar? Why does Danny put on his raincoat? What does Danny conclude? The force of the air (air pressure) keeps the water in the jar. Because he thinks the water will spill out and he doesn't want to get wet. He concludes that air is stronger than he thought. Listen to the experiment again and arrange the steps. While-reading There is more air pressure outside the jar than inside it. Fill the glass jar with water. Put a piece of cardboard over the jar. 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? 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. 1 2 3 4 5 6 7 Discuss an experiment you have done. Post-reading 5 students as a group You should include: What they wanted to find out. What they did. What happened. What they concluded. role-play Post-reading Work in groups of 3. Act out the dialogue between Danny, Jenny and Brian. Try to use correct pronunciation, proper emotions and clear actions. Student A: Brian — does the experiment, explains the science. Student B: Danny — feels nervous and funny. Student C: Jenny — is smart and confident. Show time Checklist Stars Language(语言正确) Pronunciation(发音标准) Body language(使用肢体语言) Creation(有创意) Excellent Great Good Post-reading Listen to the song and sing along. What is science What is science? Can you explain? Please make it easy for my brain. It's about making observations. Why do onions make me cry? Why do clouds go by? What keeps the birds in the sky? That's just science. What is science? Can you explain? Please make it easy for my brain. It's about matter — the universe. Why does a car stay on the road? Why is there green all over a toad? Why can't I carry a heavy load? That's just science. Language points Let's do an experiment. “do” 与 “experiment” 搭配表示 “进行 / 做实验” 同类搭配还有 “do a test（做测试） 例句: We will do an experiment to find out how plants grow without sunlight. 我们将做一个实验来探究植物在没有阳光的情况下如何生长。 Language points 2. It is strong enough to hold the water. be strong enough to do sth. 足够强壮去做某事 “adj. + enough + to do sth.” 是核心句型，意为 “足够…… 去做某事”，enough 需后置。 例句: She is tall enough to reach the books on the top shelf. 她个子足够高，能够到书架顶层的书。 Language points 3. We have discovered that the air pressure pushes the cardboard onto the jar. push ... onto ... 把…… 推到…… 上面 push ... off ...（把…… 推下去） 例句: The wind pushed the leaves onto the window of the classroom. 风把树叶吹到了教室的窗户上。 Language points 4. What can you conclude, Danny? conclude v. 得出结论；推断。 指通过观察、实验后得出结论，其名词形式为 “conclusion（结论）”常用搭配 “draw a conclusion”。 例句: After watching the video, we conclude that exercise is good for our health. 看完视频后，我们得出结论：运动对健康有益。 Exercise 一、用方框中所给短语填空 1.We are going to ____________________ in the science class this afternoon. 2.He is _______________ lift the heavy box by himself. 3.After the experiment, we can _______________ that air is stronger than we thought. 4.The air pressure can _______________ the cardboard _______________ the jar. do an experiment strong enough to conclude push onto do an experiment; strong enough to; push onto; conclude Exercise 二、英译汉 1.We will do an experiment to test the effect of air pressure. 2.The thin wooden shelf can hardly hold up all these books. 3.Is the little boy strong enough to carry this schoolbag? 4.What do you conclude from the result of the test? 我们将做一个实验来测试气压的作用。 这个薄薄的木架子几乎托不住所有这些书。 这个小男孩力气够大，能背得动这个书包吗？ 从测试结果中你能得出什么结论？ Search online and design a small experiment about air pressure. Retell the experiment in 4–6 sentences. Basic homework Extended homework null 128683.93 $