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

Unit7 How do things change？ Explore 1.7.2013 Hello everyone! Welcome to our English class. Today, we are going to explore Unit 7: Let's make ice cream! We will read a fun story about making ice cream and learn some new English expressions. ‹#› Contents 01. Warm-up & Lead-in 02. Read the story (Part 1 & 2) 03. Read and match (Activity A) 04. Read again and talk (Activity B) 05. Grammar in use & Summary 1.7.2013 Here is our plan for today's lesson. We will start with a warm-up, then read a story about making ice cream, do some reading and speaking activities, learn some grammar, and finally summarize what we've learned. ‹#› Warm-up & Lead-in Question Do you like ice cream? What flavor do you like best? e.g., Chocolate, Strawberry, Vanilla, etc. Let's share your favorite flavor and start our kitchen experiment journey! 1.7.2013 Let's start with a warm-up. Look at these delicious ice creams! Do you like ice cream? What flavor do you like best? Chocolate, strawberry, or vanilla? ‹#› Read the story: Introduction Story Title:Let's make ice cream! Main Characters: Mrs Tan, Lu Hang, Jia Li, Ma Tao, Mr Gao (Science teacher) Setting:School party 1.7.2013 Today's story is called "Let's make ice cream!". The story is about a school party. The main characters are Mrs Tan, Lu Hang, Jia Li, Ma Tao, and Mr Gao, the science teacher. Let's find out what happens at the party. ‹#› Read the story: Part 1 (The Problem) 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. The Kitchen Experiment 1.7.2013 Let's read Part 1 of the story. Mrs Tan wants to get the ice cream for the party, but Lu Hang finds that the freezer door is open. The ice cream has melted! Now there's no ice cream for the party. What a problem! ‹#› Read the story: Part 2 (The Solution) 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. Experiment Tip: Prepare the plastic bags as Mr Gao said. We will make delicious ice cream soon! 1.7.2013 Just then, Mr Gao comes. He has a great idea: they can make their own ice cream! The students are excited. Mr Gao tells them to get some plastic bags and come to the classroom. Let's see how they make ice cream. ‹#› Read the story: Part 3 (Making Ice Cream) Mr Gao:I have ice, I have cream, sugar and salt. Ma Tao:What shall we do? 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! Ma Tao:The ice is freezing the mixture! Jia Li:Look! We have ice cream! Mixing Cream & Sugar Delicious Ice Cream! 1.7.2013 Now, let's read Part 3. Mr Gao has all the ingredients: ice, cream, sugar, and salt. First, they mix the sugar and cream. Then they put the mixture in a small bag. Mr Gao puts salt and ice in a big bag, and then puts the small bag inside. Then everyone shakes the bag very hard. The ice and salt make the mixture freeze! ‹#› Read the story: Part 4 (The Result) Mr Gao:How's the ice cream, kids? Students:It's great! Can we have some more? 1.7.2013 Finally, they open the bag and find ice cream! It's a big success! The students love the homemade ice cream and want more. What a happy ending! ‹#› Comprehension Check Q1: Why was there no ice cream for the party? Q2: How did Mr Gao help the students? Q3: What did they use to make ice cream? 1.7.2013 Let's check if we understand the story. First question: Why was there no ice cream for the party? Second question: How did Mr Gao help the students? Third question: What did they use to make ice cream? ‹#› Activity A: Read and match Task: Match the causes to the effects. In this activity, you will practice identifying the relationship between actions (causes) and their results (effects) in the story about making ice cream. 1.7.2013 Now, let's do Activity A: Read and match. In this activity, we need to match the causes (why something happened) with the effects (what happened). Let's look at the story again and find the answers. ‹#› Activity A: Task Cause (原因) 1.The freezer door is open. 2.The teachers help the students. 3.The teacher puts the small bag of mixture in the big bag. Effect (结果) a.The students can make ice cream. b.The mixture freezes. c.The ice cream melts. Class Activity: Read and Match Work in pairs. Read the causes and effects carefully. Can you match the correct cause to its effect? Discuss with your partner. 1.7.2013 Here are the causes and effects. Let's match them. Number 1: The freezer door is open. What is the effect? Number 2: The teachers help the students. What is the effect? Number 3: The teacher puts the small bag in the big bag. What is the effect? ‹#› Activity A: Answer Key Cause:The freezer door is open. Effect:The ice cream melts. (c) Cause:The teachers help the students. Effect:The students can make ice cream. (a) Cause:The teacher puts the small bag of mixture in the big bag. Effect:The mixture freezes. (b) 1.7.2013 Let's check our answers. 1 matches c, 2 matches a, and 3 matches b. Great job! You understand the cause and effect in the story. ‹#› Activity B: Read again and talk Question: What do the students use to make ice cream? Sentence: They use ... Look at the picture and discuss! Tips:Review the story details and use the key words to complete the sentence. 1.7.2013 Now, let's do Activity B: Read again and talk. The question is: What do the students use to make ice cream? We need to use the sentence "They use..." to answer the question. Let's look at the story again. ‹#› Activity B: Practice Answer: They use ice, cream, sugar, salt, and plastic bags. Ice Cream Sugar Salt Plastic Bags Let's say the sentence together: "They use ice, cream, sugar, salt, and plastic bags." 1.7.2013 The answer is: They use ice, cream, sugar, salt, and plastic bags. Let's say the sentence together: "They use ice, cream, sugar, salt, and plastic bags." ‹#› Grammar in use Shall we ...? 用于提出建议 (Making suggestions) Example: Shall we make some more? Let's ... 用于提出建议 (Making suggestions) Example: Let's get the ice cream. 💡 Tip: Both patterns are used to suggest doing activities together. 1.7.2013 Now, let's learn some grammar. In the story, we saw two useful sentence patterns for making suggestions: "Shall we...?" and "Let's...". We use these when we want to suggest doing something with others. ‹#› Grammar in use: Chant Cooking Time! Chant: Let's make chicken soup! Today is our family day. Let's make some food. How about some soup? Wash the pot. Wash the chicken. Shall we wash some carrots too? Put the chicken in the pot. Add the carrots. Then add some salt. Shall we have some? Sure. I can't wait. The chicken soup tastes great! 1.7.2013 Let's practice these patterns with a chant called "Let's make chicken soup!". Read the chant together and pay attention to the sentences "Shall we wash some carrots too?" and "Let's make some food." ‹#› Grammar Practice: Activity D Dialogue: Making Juice A:I'm thirsty. Let's make some juice. B:Shall we cut the oranges first? A:Sure! Step 1: Prepare the Fruit Cut the oranges or tomatoes. Step 2: Make the Juice Blend or squeeze the fruit. Step 3: Chill Add ice and enjoy! Grammar Focus Use"Let's..."to suggest doing something together. Use"Shall we...?"to make a suggestion politely. 1.7.2013 Now, let's practice with Activity D. Look at the pictures and the dialogue. We can use "Let's..." and "Shall we...?" to talk about making juice. For example, "Let's make some juice." "Shall we cut the oranges first?" ‹#› Think Question: How can you make things change? Discussion : We can make things change by heating, cooling, mixing, cutting, etc. Heating Cooling Mixing Cutting Changing matter is all around us, even in the kitchen! 1.7.2013 Let's think about this big question: How can you make things change? In our story, we changed liquid cream into solid ice cream by cooling it. We can also change things by heating, mixing, cutting, and many other ways. ‹#› Summary Core Vocabulary freezer, mixture, freeze, cream, sugar, salt Core Sentences Shall we...? | Let's... | They use... Core Concept Cause and Effect, Making things change "Making ice cream is a cool science experiment!" 1.7.2013 Let's summarize what we've learned today. We learned some new vocabulary about making ice cream. We practiced using "Shall we...?" and "Let's..." to make suggestions. We also learned about cause and effect and how we can make things change. ‹#› Thank You! Have a sweet day! 🍦 1.7.2013 That's all for today's lesson. Thank you for your attention and participation! Have a great day! ‹#› $