Unit 5 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“亚马逊雨林沸腾河探险”主题，涵盖河流事实认知与可能性表达等核心知识点，通过自然未解之谜图片导入引发兴趣，以听力任务（确认目的地、填写档案）为支架，逐步过渡到口语输出与科学探究。 其亮点在于任务驱动式设计，融合语言能力（听力输入与口语表达，如小导游介绍河流）、思维品质（科学猜测与实证分析，如讨论沸腾原因用maybe/perhaps等表达），小组调查未解之谜提升学习能力，自评与分层作业助学生巩固，教师可高效开展探究式教学。

Nature Exploration Camp The Amazon Rainforest Adventure A Journey to Discover the Secrets of the Boiling River Module 5: Looking into Nature | Grade 8 1.7.2013 Good morning, everyone! Welcome to the Nature Science Camp! I’m your camp leader. Look at this flag – it means curiosity, courage, and teamwork. Today, we begin our great expedition. Our mission: to explore the unsolved secrets of nature around the world. Are you ready to become real explorers? ‹#› the black hole the Bigfoot the Loch Ness Monster the beginning of the universe What secrets of nature do these pictures show? Nature is full of unsolved secrets. Look around you. Nature is a vast library of mysteries. From the depths of space to the dark waters of remote lochs, these secrets spark our curiosity. Today, we will dive into one such mystery. But first, let's talk about which of these wonders interests you the most. 2 Let's step into the wild and uncover the magic of nature together. Our Destination: The Amazon Rainforest Look around you. Nature is a vast library of mysteries. From the depths of space to the dark waters of remote lochs, these secrets spark our curiosity. Today, we will dive into one such mystery. But first, let's talk about which of these wonders interests you the most. 4 Our Destination: The Amazon Rainforest Exploration Task 1: Confirm Destination Listen to the guide’s message carefully 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. Tips: Before listening, please read the questions and circle the key words. 1.7.2013 While the universe is fascinating, our journey today takes us somewhere equally mysterious: the Amazon rainforest. Our first task is to identify our exact destination. Listen carefully to the audio and choose the correct topic for our exploration. ‹#› Arrived at the boiling river! SCENE DESCRIPTION Now we arrive at the Amazon rainforest! Our local guide will introduce this amazing boiling river to us, a hidden gem deep within the lush green wilderness. EXPLORATION TASK 02 Goal: Complete the river profile Listen again carefully. You need to catch four key details to fill your journal: 🌡️ Temp 🏡 Local Uses 🚫 Rules 💬 Opinion 1.7.2013 We have arrived! The Amazon rainforest surrounds us. Our local guide is here to tell us about the incredible boiling river. Your next task is to listen carefully and fill out the river's profile. Pay close attention to the details. ‹#› 📋 Exploration File: The Boiling River Profile Listen again and complete the information below to build your official file. What is it? It is a boiling river as hot as __________°C. What do local people do with it? They __________ with it. They __________ with it. They make __________ with it. They sometimes swim, but only after______________. What is the speaker’s opinion? It’s one of the most ______________of the rainforest. . 86 cook clean tea heavy rain amazing wonders 1.7.2013 ‹#› facts about the river people’s activities the speaker’s opinion boiling as hot as 86℃ cook clean make tea go swimming after heavy rain one of... amazing... You are the Little Guide! MISSION: Try to introduce the mysterious Boiling River to a fellow explorer using the information we have learned. 8 The Core Mystery: Why is the river boiling? Why is the river so hot? We've mapped the river, but the greatest mystery remains: why is it boiling? Now, we'll listen to a conversation between tourists and our guide as they try to solve this puzzle. Your task is to record their ideas and the guide's expert opinion. 9 Exploration File: Reason Analysis EXPLORATION TASK 03 Listen to the discussion carefully and complete the table with the missing words. TOURIST The ancient idea is possible. There’s much ____________. GUIDE It’s unlikely for the sun to _________________ that much heat. TOURIST Perhaps the river passes a volcano and ________________ water? GUIDE That’s not it. The nearest volcano is about ________________ km away. TOURIST Maybe some chemicals _________________. They can __________ and produce heat. GUIDE That’s __________, but scientists haven’t found any yet. More _________ is needed. sunshine heat the river becomes hot 700 kilomtres in the water produce possible research 1.7.2013 Let's analyze the data. The tourists proposed three theories: sunshine, a volcano, and chemicals. As we can see, the guide provided scientific reasons why some theories are unlikely, while others require more research. This teaches us an important lesson about scientific inquiry. ‹#› The Spirit of Science Discussion Questions •1: How many possible reasons are mentioned? Three. • 2: Are the tourists sure about their ideas? Why? No. They only make guesses. The Spirit of Science In science, we can have different guesses. But we need facts and research to check them. We should be brave to imagine, and careful to study. This exploration teaches us a vital lesson about science. It's wonderful to have imagination and make guesses, but true discovery comes from careful study and research. Always be brave to imagine, but careful to verify your ideas with facts. 11 Explorer's Toolkit: Talking about Possibility Listen again. Then talk about how the speakers discuss possibilities. 1.7.2013 Let's break down the conversation. Notice how the tourists use words like 'possible' and 'perhaps' to express their guesses. The guide then uses facts to support or refute these ideas. This is a perfect example of how we discuss possibilities in English. ‹#› Explorer's Toolkit: Talking about Possibility 🔑 Key Words & Expressions maybe / perhaps (used for low certainty) might / could (expressing possibility) It’s possible that… / That’s possible. It’s likely that… (higher certainty) 💡 Example "Maybe the sun heats the river, but the guide says it’s unlikely that we can swim today." 1.7.2013 During our investigation, we often need to talk about things we're not 100% sure about. That's why we need our Explorer's Toolbox! These are useful phrases for talking about possibilities. Notice how we used them in the discussion. Let's read the example sentence together. These tools will be very important for our next task. ‹#› 🗣️ Final Exploration Task: – Investigate a Mystery Choose an Unsolved Mystery Crop circles 🌾 Atlantis 🌊 Work in pairs to brainstorm and discuss possible explanations. Make sure to use the **Possibility Expressions** from our Toolbox. Checklist (Total: 6 Stars) Describe the mystery clearly (1☆). Natural pronunciation & tone (1☆). Give at least 2 explanations (2☆). Use 3+ useful expressions (2☆). Have you heard of…? Yes, it’s very strange. I’m curious about the possible reasons. Perhaps it’s because… … 1.7.2013 Now for your final challenge! Using everything you've learned, team up with a partner. Choose another natural mystery, like crop circles or the lost city of Atlantis, and create a dialogue exploring its possible causes. ‹#› Sample Dialogue: Atlantis Explorer A Have you heard of Atlantis? I’ve been digging into ancient civilization records recently. Perhaps there was a big earthquake. It might have broken the land and made the entire island sink into the deep sea. It’s also likely that all its grand temples and statues disappeared beneath the waves without a trace. Explorer B Yes, it’s super mysterious! I’m really curious about the real reasons behind its disappearance. That’s possible. Maybe rising sea levels from melting glaciers also flooded the island and sealed its fate. Or…could it be that Atlantis was just a fictional story? That could be true too! We learned: the facts about the Amazon Boiling River. how to talk about possibilities (maybe, perhaps, might, It’s possible that…). Summary of Our Journey Keep asking questions. Keep exploring. — THE SPIRIT OF NATURE EXPLORATION CAMP — 1.7.2013 ‹#› Self-assessment How well can you do these things? Very well OK Needs work 1. I have understood the conversation about the boiling river in the Amazon rainforest. 2. I can use could, may, might, maybe, perhaps… to guess the causes of unsolved secrets in nature. 3. I can discuss unsolved natural mysteries. 1.7.2013 ‹#› Homework for Young Explorers Must do • Recite key words and sentence patterns. • Finish phonetics exercises on Page 100. • Retell the Boiling River story in 3 sentences. Choose to do • Polish your class dialogue with richer vocabulary and recite it. • Introduce one natural mystery (5 sentences) with two possible reasons. 1.7.2013 ‹#› Blues 61152.0 Blues 147552.0 $