Unit 4 The Wonders of Nature Section A 1a-1d课件2025-2026学年人教版英语八年级下册

该初中英语课件围绕“自然奇观”主题，聚焦形容词最高级、大数字表达及自然景观描述，通过图片观察提问、维多利亚瀑布及中外自然奇观介绍导入，搭建“识别特征-描述属性-讨论联系”的学习支架，衔接听力理解与对话模仿任务。 其亮点在于融合语言能力与文化意识，听力训练巩固最高级用法，介绍中国黄山等奇观增强家国情怀。采用“提问-探究-总结”模式提升思维品质，如讨论深海研究意义。作业鼓励在线搜索与同伴互动，培养学习能力。学生能提升语言应用与跨学科认知，教师可高效落实综合素养目标。

UNIT 4 The Wonders of Nature Section A 1a-1d 能够判断听力对话的场景和人物的身份，并理解对话的主题及谈到的自然奇观。 能够听辨出描述不同“地理之最”的形容词最高级和大数字，在语境中巩固形容词最高级的用法，并熟悉大数字的表达法。 能够模仿听力录音，与同伴就地理之最的话题开展对话，并尝试用大数字准确描述这些自然景观的面积、高度、深度等。 能够丰富对世界地理的认知，利用跨学科知识助力英语学习。 (1a-1d) Do you know what natural places they are? What amazing things do you know about them? Let’s take a look at them together! Lead in What can you see in the pictures? Which one is the highest / biggest / lowest / deepest? 1.Do you know the name of the waterfall in the photo? The waterfall in the photo is Victoria Falls. It is one of the world’s largest waterfalls, known for its massive spray and roar. 2.What do you think is special about it? 3.What other natural wonders do you know? Examples: the Grand Canyon, the Great Barrier Reef, Mount Everest. Victoria Falls is one of the largest waterfalls in the world, named after the British Queen Victoria, with a width of over 1,700 metres. 3. What other natural wonders do you know? There are many amazing natural wonders in China, including the magnificent Mount Huangshan, Zhangye Danxia Landform (Gansu), and Huangguoshu Waterfall (Guizhou), amongst many others. How do we connect with nature? BIG Question ? respect nature learn about nature enjoy nature protect nature … Listen to the game show. Complete the descriptions of the places. 1a highest mountain Place Description Mount Qomolangma the __________________ in the world Sahara Desert the __________________ in the world Dead Sea the __________________ on earth Mariana Trench the __________________ in the ocean biggest desert lowest place deepest point Nile/naɪl/ river 尼罗河 "There is a river so long, that it flows through 11 countries. If you walk its whole length, it will take you over a year!" Knowledge & Skills Master the use of superlative adjectives (e.g., highest, biggest, lowest, deepest) to describe natural wonders. Use special questions (What's the ...? / How ... is it?) to ask and answer about facts of places. Recognize and use large numbers and units (e.g., metres, square kilometres) in context. 01 Affect & Competence Appreciate the scale and diversity of the natural world. Understand that knowledge is dynamic and needs updating. 02 Learning Objectives 1b A class is asking a deep-sea researcher some questions after his talk. Listen and tick the topics they discuss. □Where the deep sea begins □Why people are researching the deep sea □Which Chinese submersible dived deeper in the water than many others □What deep-sea animals are like □How everyone should protect the deep sea 潜水艇 Nile River: the longest river in the world Nile River（尼罗河） 位置与长度：非洲东北部，世界公认最长河流之一，全长约6650 千米；发源于东非高原，自南向北流经 11 国，最终注入地中海。 两大支流：白尼罗河（源自维多利亚湖，流程更长）与青尼罗河（源自埃塞俄比亚塔纳湖，提供约 80% 水量与泥沙），在苏丹喀土穆汇合为干流。 文明与价值：古埃及文明的母亲河，历史上的定期泛滥造就了肥沃河谷；如今是苏丹、埃及等国的核心水源，支撑农业、航运与城市发展，阿斯旺大坝调控了洪水与发电。 Mount Qomolangma: the highest mountain on Earth Sahara Desert: the biggest desert in the world 1c Listen again. Complete the sentences with the facts from the conversation. 1. People still don’t know much about the                         . 2. In                       , China’s Fendouzhe dived into the deep sea  and filmed it. 3. Some animals have unusual abilities. Some are                       but can “sea”. Some can even create their own                     . 4. There is rubbish even at                   metres deep. 2020 ocean floor blind  light 11,000 Dead Sea: the lowest place on Earth’s land surface _____ metres below sea level （1）〔名词〕高度 The mountain is over 3,000 metres above sea level. 这座山海拔3 000 多米。 搭配 sea level 海平面 （2）〔名词〕水平；程度 He studies hard to improve his English level. 他努力学习以提高他的英语水平。 〔副词〕在下面；低于 不强调垂直的“下面 From the top of the mountain, I could see the village below. 从山顶上我可以看到下面的村庄。 辨析 below与under两者都表示“在……下面”。区别如下： below 表示在某物的下方，但不一定是在正下方，反义词是above Write the answers below each question. 把答案写在每个问 题的下面。 under 表示在某物的正下方，反义词是over The farmer is standing under the tree. 那个农民正站在树下。 1d Read the questions and think of more you would like to ask the deep-sea researcher. Research the answers. Then ask and answer the questions with a partner. 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? 在……的底部 B: Its surface is… metres below sea level. 〔名词〕表面；表层 当指“水面”或“液面”时，常用单数形式。 Nearly 10% of the earth’s surface is covered by ice. 地球表面将近10% 被冰覆盖。 拓展 on the surface 表面上；从外表看；乍一看 On the surface, it seems to be my fault. 表面上看，这似乎是我的过错。 21 Summary e.g. A: What is the largest shark in the deep sea? B: I think it’s the whale shark. A: Do you know how large it is? B: It can grow up to about 10 to 20 metres in length. A: What is the bottom of the deep sea like? B: It is dark, freezing, and has high pressure. There are also many unique creatures. A: Why is it important to research the deep sea? B: Because the deep sea has unique species for research, holds important resources, and can help control our climate. _____ metres below sea level （1）〔介词〕在……下面 Please don’t stand below that bridge. 请不要站在那座桥下面。 （2）〔介词〕低于 It was three degrees below zero this morning. 今天早晨的温度是零下三度。 A: What’s the lowest place on earth? B: It’s ... A: How low is it? B: Its surface is ... metres below sea level. A: Now, what’s ... What is amazing about nature? 方框选词并用其适当形式填空。(4分) 1. The __________ of the lake is as smooth as a mirror on quiet mornings. 2. The bird made a quick __________ from the sky to catch a small worm on the ground. surface usual, dive, surface, deep dive 3. The ____________ of this lake reaches over 80 metres. 4. Betty hopes to give her mother an ____________ gift on her fortieth birthday. usual, dive, surface, deep depth unusual Homework Ask and answer with your partner based on the information in 1b and 1c. Search online to know more about nature. Do some related exercises. 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