Unit 3 Let's explore Science Make rain in a bag-【练出好成绩】2025-2026学年新教材四年级上册英语课时分层提优课件PPT（外研版 三起2024）

课时提优作业 ★注重基础 ★提升能力 单元整体提优 ★整理提升 ★阅读训练 期末专项复习 ★专项突破 ★巩固提升 学业质量评价 ★依据课标 ★立足素养 4 年级上册.WY 英 语 2 Let’s explore Science:Make rain in a bag Unit 3 What’s the weather like? 3 阅读绘本，完成下列任务。 Making Snow at Home Winter is magical, and snow is fun! Do you want to make snow at home? Try this easy experiment(实验). What You Need Baking soda(小苏打), shaving cream(剃须泡沫), a bowl and a spoon. Steps 1. Pour baking soda into the bowl. 2. Add a little shaving cream and slowly add more. 3. Stir with the spoon until it becomes soft “snow”! Why It Works Baking soda is dry(干燥的), and shaving cream has water. When you mix them, they make a new thing that looks like real snow. Cool, right? Fun Things to Do Build a small snowman! Use buttons(纽扣) for eyes and a carrot for the nose. Have a “snowball” fight with your family. Don’t make a mess! 4 任务一：判断正(T)误(F)。 ( )1. You need a spoon to stir the mixture (混合物). ( )2. The experiment is difficult to do. 任务二：选择正确答案。 ( )1. What do you need to make snow at home? A. Baking soda. B. Shaving cream. C. Both A and B. ( )2. What can you use for the snowman's eyes? A. Carrots. B. Buttons. C. Apples. T F C B 任务三：小朋友们，在完成“在家造雪”的实验后，仔细观察碗里的混合物在不同时间的样子，然后完成下面的表格哦。 A. The “snow” looks like real snow! B. Soft “snow” forms(形成) in the bowl. Time What does the mixture in the bowl look like? 1 minute after mixing 10 minutes later B A 6 7 $