Unit 4 The Wonders of Nature Section A 2a-2d课件 2025-2026学年英语人教版八年级下册

该初中英语课件围绕“深海探索与保护”，涵盖深海分区（如Twilight Zone、Midnight Zone）、中国“奋斗者号”深潜成就、生物特征及保护建议。通过图片梳理深度信息，结合听力对话（如讨论深海动物与垃圾问题），搭建从认知到应用的学习支架。 其亮点在于融合语言能力（听力获取关键信息、词汇学习）、文化意识（“奋斗者号”增强民族自豪感）和思维品质（小组讨论保护建议）。采用任务型教学，含听力音频、视频及保护口号创作等活动，学生提升语言应用与环保意识，教师获得系统的听、说、实践活动设计。

Section A (2a~2d) Unit 4 The Wonders of Nature 首页左侧的图片为各自主做的版本封面。 1 学习目标 1 2 能围绕深海探索与保护展开思考与讨论，结合所学知识提出合理的深海保护建议。 能借助图片梳理深海深度相关信息；能听懂关于深海探索的对话，获取对话主题、中国深潜器成就等关键信息。 能感受深海探索的科学价值，了解中国深海探索成就，增强民族自豪感；树立保护深海生态、敬畏自然的意识。 3 Twilight Zone The depth range is about 200 to 1000 meters. Light here is very faint, like during twilight. In the zone, we start to see the twinkling lights from bioluminescent creatures(发光生物). There are many kinds of strange and odd-looking fishes here. Midnight Zone It's from 1000 to 4000 meters deep in the ocean. There's no light at all here—totally dark, like midnight. The temperature is nearly freezing and pressure is extremely high. Some unique and weird-looking sea animals live here. Mariana Trench: the deepest point in the ocean We’ve known that Mariana Trench is the deepest point in the ocean. submersible Fendouzhe is a submersible. What do you know about the deep sea? It’s very deep and dark. No sunlight can reach there. The deep sea begins at 200 metres. China’s Fendouzhe has dived into the deep sea. What do you know about the deep sea? Complete the sentences with the information from the picture. 1. Fendouzhe reached ______. 2. The deep sea begins at ______. 3. The Titanic rests at ______. 4. A whale can dive to ______. 2a D A C B Fendouzhe （奋斗者号） Fendouzhe is a super advanced deep-sea submersible(潜水器) made by China. It can carry scientists down to the deepest parts of the ocean, like the Mariana Trench. In 2020, it successfully reached the bottom of the trench, over 10,000 meters deep! It helps us explore the mysterious deep sea, discover new creatures, and learn more about our planet. /səbˈmɜːrsəbl/ Fendouzhe is China's manned deep-sea submersible, which reached a depth that set a new record for China's deep-sea diving. Some deep-sea animals create their own light – it’s like having a flashlight in the dark! Pre-listening Rubbish has been found even in the deepest parts of the ocean. Let’s predict. where the deep sea begins why people are researching the deep sea which Chinese vessel dived deeper than others what deep-sea animals are like how everyone should protect the deep sea Which ones do you think will be mentioned in the following listening 、 Mr Jones: Well, many deep-sea animals are ____________________. Some animals are blind, but they can "see" as well as others. Some even __________________! Peter: Cool! Are there any other surprising facts about the deep sea? Mr Jones: Did you know that there's rubbish even at 11,000 metres deep? That ________ many people. Ms Gao: That's terrible! We should do something about it. Mr Jones: You're right! large and unusual create their own light shocked 有些动物没有视力，却能和其他动物一样“感知”周围。 自己发光 感到震惊 “as + 形容词或副词原形 + as”为同级比较，表示两者在某一方面相同。 any other + 名词复数，表示“还有其他……吗？” as well as 表示“和……一样好” 、 2d Read the questions and think of more you would like to ask the deep-sea researcher. ● What is the largest shark in the deep sea? ● What is the bottom of the deep sea like? ● Why is it important to research the deep sea? ● What other vessels dived to the bottom of the ocean? ● What do deep-sea animals usually eat to survive? ● How cold is the water in the deep sea? ● What tools do researchers use to study the deep sea? ● ... bottom...的底部 A. To find more fish for food. B. Out of curiosity and because we don't know enough about the ocean floor. C. To build underwater cities. 1.Why are many countries researching the deep sea? What is true about many deep-sea animals? A. They are all small and colorful. B. Some are blind but can still "see," and some make their own light. C. They all live near the surface of the ocean. What surprising fact about the deep sea does Mr Jones mention? A. There are no living things at 11,000 meters deep. B. There is rubbish even at 11,000 meters deep. C. China's Fendouzhe is the only submersible to reach the deep sea. Listen to the conversationand think about the questions below. Listen for question words: where, why, which, what, how Listen for names: Fenoduzhe (a Chinese vessel) Listen for numbers: depths, years Listening tips Ms Gao: Thank you for the wonderful talk, Mr Jones. Now, does anyone have any questions? Emma: I do! Why are so many countries____________the deep sea? Mr Jones: Well,_________is one reason. We don't know enough about the _________. Fu Xing: I remember that in 2020, China's _________ __dived deeper into the Mariana Trench than many other vessels in the world and filmed it. But I didn't see any deep-sea animals. What are they like? Mr Jones: Well, many deep-sea animals are large and________. Some animals are_______ , but they can "see" as well as others. Some even create their own ______! Peter: Cool! Are there any other surprising facts about the deep sea? Mr Jones: Did you know that there's_________even at__________metres deep? That shocked many people. Ms Gao: That's terrible! We should do something about it. Mr Jones: You're right! researching curiosity ocean floor Fendouzhe blind light rubbish Listen to the conversation again and fill in the blanks unusual 11,000 、 Research the answers. P33 ● What is the largest shark in the deep sea? ● What is the bottom of the deep sea like? ● Why is it important to research the deep sea? ● What other vessels dived to the bottom of the ocean? ● What do deep-sea animals usually eat to survive? ● How cold is the water in the deep sea? ● What tools do researchers use to study the deep sea? The largest shark in the deep sea is the Greenland shark (格陵兰鲨). It is usually dark, cold, and covered with soft sedimen (沉积物). Other vessels include Trieste (迪里雅斯特号) and Alvin (阿尔文号). It helps us learn about ocean life and get useful things for our lives. They usually eat other small animals or organic debris (有机碎屑). It is very cold, usually around 0-4 ℃. Researchers use vessels like Fendouzhe and cameras to study the deep sea. 、 Then ask and answer the questions with a partner. What is the largest shark in the deep sea? The largest shark in the deep sea is the Greenland shark. ☐ where the deep sea begins ☐ why people are researching the deep sea ☐ which Chinese vessel dived deeper in the water than many others ☐ what deep-sea animals are like ☐ how everyone should protect the deep sea 2b A class is asking a deep-sea researcher some questions after his talk.Listen and tick the topics they discuss. Let’s check the answer 、 Let’s watch and think. What wonder of nature is it in the video? New drills Let’s protect water resources. Evaluation(评价) Complete content (内容完整) Correct language (语言准确) Clear voice (自信表达) Group discuss: Why are both rivers and the deep sea important? What can we do to protect them? Write 2-3 pieces of slogans: For examples: Don’t throw rubbish into rivers or the sea. Learn about water ecosystems and tell others. Support scientific research about water. Group work Rivers are the past and present of human civilization. The deep sea may be the future. To protect water is to protect life itself. 、 Hukou Waterfall 壶口瀑布是黄河干流瀑布。东濒山西省临汾市吉县壶口镇，西临陕西省延安市宜川县壶口镇，为两省共有旅游景区。南距陕西省西安市350千米；北距山西省太原市387千米。 壶口瀑布是中国第二大瀑布，世界上最大的黄色瀑布。黄河奔流至此，两岸石壁峭立，河口收束狭如壶口，故名壶口瀑布。瀑布上游黄河水面宽300米，在不到500米长距离内，被压缩到20—30米的宽度。1000立方米/秒的河水，从20多米高的陡崖上倾注而泻，形成“千里黄河一壶收”的气概。 、 Read the conversation and answer the questions. 1. What waterfall do Yaming and Ella mention? 2. Why is the Yellow River called "yellow"? 3. Is Ella interested in rivers? The Hukou Waterfall. Because some parts of the river carry brown and yellow earth. Yes. Exercise 1. The scientists will ______ (潜水) into the deep sea to study the unusual creatures. 2. We still don't know the exact ______ (深度) of some parts of the ocean. 3. The Yellow River is very important to Chinese ___________ (文明). 4. The Taklimakan is the largest ______ (沙漠) in China. 5. The ________ (deep) part of the ocean is about 11,000 metres. 6. The ____________ (develop) of ancient Egypt depended on the Nile River. 7. Some deep-sea animals look _________ (usual) and even scary. 8. We should protect our “mother river” by all ______ (mean). 9. The ________(deep) of the swimming pool for kids is 1.2 metres. 10. The _______ (bottom) of the sea is dark and quiet. 11. Of all the students in our class, Lucy lives the _______(far)from school. dive depth civilization deepest desert development unusual means depth bottom farthest Homework 基础作业 拓展作业 实践作业 熟读3a的对话内容，背诵其中描述黄河、长江、尼罗河长度和重要性的句子，并用英语默写下来。 根据2a-2d的深海相关内容，结合自己的查阅，用英语写5个关于深海的趣味小知识。 和家人合作，选择中国一处海洋或者河流景观，用英语制作一份简易介绍卡片，包含名称、位置、一个特色特点这三项信息。 Lavf57.71.100 Packed by Bilibili XCoder v2.0.2 Lavf59.14.100 null 81188.68 Lavf59.27.100 Packed by Bilibili XCoder v2.0.2 $