Unit 5 课时4 Developing ideas Listening and speaking （课件）英语新教材外研版八年级下册

Unit 5 Looking into nature 课型：听说课 Developing ideas Listening and speaking 1 学习目标 听懂关于亚马逊沸腾河的听力材料，选择正确的主题并完成信息填空。（学习理解） 01 运用 could, may, might, maybe, perhaps 等词及相关句型谈论可能性，完成表格填写。分享本节课学到的关于自然奥秘的知识，表达自己最感兴趣的自然秘密。（应用实践） 02 两人合作选择自然未解之谜，运用所学表达讨论并给出可能的解释。（迁移创新） 03 How do you feel after watching this video? Lead in Lead in How do you feel after watching this video? I feel amazed. I feel a little scared. I feel interested in nature. I feel curious. Look and match. 1. What secrets of nature do these pictures show? Pre-listening Look and match. 1. What secrets of nature do these pictures show? the black hole 黑洞 the Bigfoot 大脚野人 the Loch Ness Monster 尼斯湖水怪 the beginning of the universe 宇宙起源 Pre-listening Which of the secrets interests you most? Pre-listening The black hole interests me most. I think it's very mysterious. I want to know what is inside a black hole. It drives scientists to explore space and awakens my curiosity. Read and answer. Why do scientists want to study these secrets? Because these secrets awaken people's curiosity and help scientists better understand the wonders around us. 大自然充满了秘密 唤起我们的好奇心 drive sb. to do sth. 驱使某人做某事 Pre-listening While- listening 1 Listen to the talk and choose the correct topic. Tips: Before listening, please read the questions and circle the key words. 9 While- listening record a world record / record the temperature produce fresh produce / produce oxygen perfect a perfect gift / perfect her skills desert the biggest desert on earth / desert his duty Listen and repeat. /ˈrekɔːd/ /rɪˈkɔːd/ ​​/ˈprɒdjuːs/ /prəˈdjuːs/ ​​/ˈpɜːfɪkt/ /pəˈfekt/ ​​/ˈdezət/ /dɪˈzɜːt/ While- listening 86 cook tea heavy rain amazing wonders 2 Listen again and complete the profile. num. v. n. n. n. 11 While- listening 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 rain forest. Audioscript While- listening What’s the speaker’s opinion? 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 rain forest. While- listening The tourists and the guide are having a heated discussion. Let’s listen carefully. 14 While- listening 3 Listen to the conversation and complete the table. sunshine heat the river becomes hot 700 kilometres / 700 km in the water produce possible research v. 不n. v. 距离 地点 v. n. adj. 15 While- listening 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... Audioscript While- listening Listen again. Then talk about how the speakers discuss possibilities. Post-listening What can you see in the pictures? Look and say. Crop circles Atlantis 麦田怪圈，它是田野里出现的巨大圆形图案。 Post-listening 4 Work in pairs. Choose one unsolved secret of nature and talk about possible explanations. Post-listening Example A: Have you heard of __________? B: Yes, it's very mysterious. I'm curious about the possible reasons. A: Perhaps there was an ________. Something made the island sink into the sea. B: That's possible. An earthquake might have caused it. A: Yes, maybe. It's also possible that the city disappeared because of _________________. B: Or maybe Atlantis never existed and it’s just a story. A: Yes, that could be true! rising sea levels Atlantis island What have you learnt about the secrets of nature? Think and share Nature is amazing and full of mysteries. They awaken our curiosity and make us want to learn more! Nature is full of secrets! Post-listening Language points 1.充满奥秘 2.唤起我们的好奇心 3.驱使科学家去…… 4.宇宙的起源 5.和…… 一样热 6. 用它清洁 7.去游泳 8. 最近的火山 9. ……之一 be full of secrets awaken our curiosity drive scientists to… the beginning of the universe as hot as… clean with it go swimming the nearest volcano one of… Exercises 1.— Do you often ______ in the river? — No, it's too deep and dangerous. A. go swim  B. go swimming  C. go to swimming 2. The soup is very hot. It is ______ the sun. A. as hot as  B. so hot as  C. hot as 3.The story of the monster _____. We all want to know what it is. A. full of secrets  B. is full of secrets  C. is full with secrets 4.Changjiang is ______ the longest rivers in the world. A. one  B. one of  C. a 5.We don't know the exact time of ______ the universe. A. the beginning of  B. beginning of  C. the begin of 单选题 Expressions volcano, unlikely, local, rainforest, boiling, universe, awaken… Listening 掌握了不同的听力技巧获取关键信息，听主旨大意，听细节等。 We have listened to a talk and a conversation to get information and answer questions. We have learnt about learnt about the secrets of nature. Summary 24 Homework Must do: 1.Memorize the new words, phrases and key sentence patterns of this lesson. 2.Finish the relevant after-class exercises. Choose to do: 1.Write about one unsolved secret of nature and possible explanations. 2.Talk about what you have learnt about the secrets of nature in this section. Homework 25 Thank you Multimedia Cloud Transcode (cloud.baidu.com) Content Adaptive Encoding 3.1 Blues 61152.0 2025 Blues 115968.0 Blues 147552.0 $