Unit 7 How do things change？Period 2 Explore A&B（课件）-2025-2026学年沪教版英语四年级下册

Unit 7 How do things change? Period 2 What makes things change? [Explore, Explore A & B ] Look! There are many party things here. What are they? Water is a liquid. ... is a ... Look and say Today is our school party. 派对物品 分类 lu hang发现冰箱打开了 冰激凌融化了 Mrs Tan: Today is our school party. Let's get the ice cream. It's in the freezer. Lu Hang: Oh no! The freezer door is open. Jia Li: Look at the ice cream! Mrs Tan: Now there's no ice cream for the party. 1. What’s the problem? There’s no ice cream for the party. Cause The ice cream melts. Effect Listen and answer 2. What causes the effect? The freezer door is open. Shall we make some more? Sure! But how? Sure! But how? Sure! But how? Don’t worry! I can teach you. SurGreat! Great! Great! Mr Gao: Shall we make some more? Students: Sure! But how? Mr Gao: Don't worry! I can teach you. Students: Great! Mr Gao: OK, kids. Get some big and small plastic bags. Then come to the classroom. Mr Gao: I have ice. I have cream, sugar and salt. What do they need? They need some ... Read and find What shall we do? Watch and order 1 2 3 4 5 插入课文第三段的视频 Circle and answer Mr Gao: Mix the sugar and cream. Then put the mixture in a small bag. Students: Done! Mrs Tan: Let's add some chocolate. Students: Good idea! Mr Gao: Look! I'm putting salt and ice in the big bag. I'm putting the small bag in it too. Now shake, shake, shake! 插入第三段的音频 Tips: Read and circle the verbs(动词). mix mixture ① What do they mix first? ② What do they put and add in the small bag then? ③ What do they do next? ④ What else do they put in the big bag after that? ⑤ What do they do finally? ① ② ② ③ ④ ⑤ Watch and order 1 2 3 4 5 First , ... Then ... Next , ... After that , ... Finally , ... mix... put ... in a small bag add ... put ... in the big bag put ... in ... shake ... Let's do an experiment to find out why! Why do we add salt ? 提出疑问 为什么可以成功 Do and think 操作实验视频 Yes. And when ice melts, it takes in more heat from the water. (溶解吸热） How amazing！Salt makes ice melt faster. So the water becomes colder. A lower temperature makes the mixture freeze faster!(低温加速凝固） Great! Now let’s enjoy the ice cream! 10 10 √ -4 1 √ √ √ √ 提出疑问 为什么可以成功 Read and match The cause is ... The effect is ... Read again and talk Read again and talk How do the students solve the problem? The ... is open. The ... melts. Let’s make ... They need ... mix ... put ...add ... put ... put ... shake... Now they have ... It’s ... What do the students use to make ice cream? They ... Let’s keep the party going! Can you make ice cream in other flavors? Team up and act A. Read and role-play B. Create and show Hello, I’m the ice cream designer. This is my ... ice cream. (flavor) We need ... (materials) First, mix... Then, put...and add... Next, put... After that, put... Finally, shake... (steps) Look! My ice cream is ready. It’s sweet and yummy! Perform fluently（流利） Perform logically（逻辑） Perform creatively（创意） To be continued ... And we will become“change chefs” next class! You did a good job today! 衔接P3的过渡动画 作业情境：恭喜你成为“冰激凌救援小分队”队员，请在生活中跟大家分享神奇变化吧！ 【救援行动转播员】作为救援行动的“转播员”，请把这次“冰激凌救援行动”分享给家人朋友吧！（必做） （转播故事）跟读课本P64-65故事，要求发音准确、语调生动。 （解密步骤）在完成朗读基础上，结合流程图清晰解说冰激凌制作的步骤。 4BU7P2 What makes things change? First, mix ... Then, put ...and add ... Next, put ... After that, put ... Finally, shake... Look! We have ice cream! Hello, I’m the ice cream designer. This is my ... ice cream. (flavor) We need ... (materials) First, mix... Then, put...and add... Next, put... After that, put... Finally, shake... (steps) Look! My ice cream is ready. It’s sweet and yummy! 4BU7P2 What makes things change? 【创意甜品设计师】请创造一款新口味的冰激凌，并拍摄一段1-2分钟的“产品发布”视频，介绍你的创意作品。（选做） Fluently Logically Creatively Period2 What makes things change? Unit7 How do things change? Problem: no ice cream Idea: make more ... Material: plastic bags, sugar, salt, cream, ice Let’s make ice cream Steps: First, ... Then ... Next, ... After that, ... Finally, ... mix the sugar and cream put the mixture in a small bag put salt and ice in the big bag put the small bag in the big bag shake, shake, shake add some chocolate & Blues 405896.28 Lavf58.46.101 $