Unit 5 Looking into nature-Developing ideas-Listening and speaking课件 2025-2026学年外研版八年级英语下册

该初中英语课件围绕“自然奥秘及可能性表达”展开，通过图片展示黑洞、尼斯湖水怪等自然现象导入，结合亚马逊雨林视频及听力任务（如沸腾河温度、用途填空）搭建输入支架，再过渡到小组对话（麦田怪圈、亚特兰蒂斯）输出，形成从感知到应用的学习脉络。 其亮点在于融合语言能力与思维品质，听力任务提升信息理解能力，用maybe、perhaps等句型讨论沸腾河成因培养推断思维，小组合作对话（如crop circles示例）促进表达。视频和真实案例激发兴趣，自我评估助学生反思，教师可直接使用结构化活动提升教学效率。

Unit 5 Looking into nature Developing ideas: Listening and speaking 第3课时:听说课 1 通过本课时的学习，学生能够： 1.理解并掌握本课生词的用法。 2.学会使用表可能性的词语与句型谈论事物。 3.通过小组合作，学会描述自然的奥秘，培养探索自然科学的兴趣。 Objectives 2 Nature is full of amazing secrets. Many strange plants, animals and natural mysteries are waiting for us to explore. What secrets of nature do you know? 大自然的奥秘 Pre-listening Look at the pictures. What can you see? Do you know these secrets of nature? the black hole 黑洞 the Bigfoot 大脚野人 Do you know these secrets of nature? It is a strange space body. Its strong gravity pulls all things, even light. It is a huge wild man in stories. It lives in forests and hides from people. the Loch Ness Monster 尼斯湖水怪 the beginning of the universe 宇宙起源 Do you know these secrets of nature? It is a strange big creature. It lives in a deep lake and few people see it The universe started from a great big explosion long long ago. the Amazon rainforest What is it? Located in South America, it is the world’s largest forest. It has many plants and animals and keeps our earth healthy. Let’s watch a video about the Amazon rainforest. While-listening Listen to the talk and choose the correct topic. a. A disappearing river in South America. b. The life of the people in the Amazon rainforest. c. A boiling river in the Amazon rainforest. What information should you pay attention? What information should you listen for? Problem Solution Opinion Listen again and fill the blanks. Listen and complete the table. 86 cook tea heavy rain amazing wonders Script： Guide: Welcome to the Amazon rainforest! Now, I'd like to present a special river to you. Since ancient times, people have talked about a boiling river in the rainforest. Many people laugh at this story, but in fact, it's true! The water can be as hot as 86 °C. People here cook with it, clean with it and make tea with it! There's no need to make a fire! The water only cools down after heavy rain. Then people go swimming in it. I think it's one of the most amazing wonders of the rainforest. Problem Solution Opinion Follow the pattern and try to retell. What causes the boling river? Listen and complete the table. sunshine heat the river becomes hot 700 kilometres in the water produce possible research Listen again and find: How did the speakers discuss possibilities？ Post-listening Script： Guide: Ancient people here thought that the sun makes the river hot. Boy: It's possible, right? There's a lot of sunshine here. Guide: Actually, it's unlikely for the sun to heat the river that much. Just think of outdoor swimming pools. Would the water get to 86 °C in summer? Girl: You're right. But how about volcanoes? Perhaps the river passes a volcano and becomes hot? Guide: Good guess! But I'm afraid that's not the reason. The nearest volcano is about 700 kilometres away. Girl: I have another idea! Maybe there are some chemicals in the water. They can produce heat. I've studied them at school. Guide: That's possible. But scientists haven't found such chemicals in the river yet. They need to do more research… What are the unsolved secrets of nature in the pictures? Post-listening Crop circles 麦田怪圈 麦田怪圈出现在英国。田地里农作物被压平后形成的大型几何图案，大多在一夜之间神秘出现。 有人认为是外星人留下的信号；有人猜测是龙卷风、等离子气流等自然现象造成。 Atlantis 亚特兰蒂斯 亚特兰蒂斯是传说中的失落古城。传说中，它是一座富庶强盛、文明高度发达的岛国。但后来岛上的人们变得贪婪堕落触怒了众神。一夜之间，亚特兰蒂斯遭遇地震洪水，最终沉入深海。 Crop circles Atlantis What are the unsolved secrets of nature in the pictures? Post-listening Some strange round shapes appear in farm fields at night. People have many ideas, but no one knows their real secret. It is a famous ancient city. It was rich and great, but it sank into the sea and disappeared forever. Crop circles Atlantis Work in pairs. Choose one unsolved secret of nature and talk about possible explanations. ➤Useful expressions The truth may be… It’s likely that… Perhaps it’s because… It’s probably a result of… There’s a (strong) possibility that… It’s possible that… There’s a chance that… A: Have you heard of ....? B: Yes, it’s very .... I’m curious about the possible reasons. A: Perhaps it’s because of some unknown ... B: It’s likely that ... create these special .... A: There’s a chance that .... make .... B: The truth may still be a big mystery to us all. Possible version: A: Have you heard of crop circles? B: Yes, it’s very strange. I’m curious about the possible reasons. A: Perhaps it’s because of some unknown natural power. B: It’s likely that strange winds create these special shapes. A: There’s a chance that some people make them at night. B: The truth may still be a big mystery to us all. 1. What do you know about the secrets of nature? 2. Do you know how to use words and expressions to talk about secrets of nature? 3. Can you discuss possibilities? Thanks Lavf59.14.100 Blues 61152.0 Blues 147552.0 $