Unit 4 Section A 1a-2d 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”核心主题，涵盖尼罗河、珠穆朗玛峰等地理事实及大数字运用，通过图片匹配、听力游戏、对话模板等学习支架，引导学生从认知自然奇观到运用语言描述，构建知识脉络。 其亮点在于融合语言能力（听力精听、对话表达）、思维品质（数据比较分析）与文化意识（中外自然奇观认知），如数字读法教学结合实例，对话练习提供情境模板，采用任务型教学，助力学生提升语言运用与思维能力，教师可高效开展互动教学。

The Wonders The Wonders The Wonders Unit 4 第一课时 1a-2d of Nature of Nature of Nature 八年级下册英语人教版 Section A What is amazing about nature? 1. Do you know the name of the waterfall in the photo? 2. What do you think is special about it? 3. What other natural wonders do you know? It’s Victoria Falls. It’s super big and wide. Angel Falls Nile River Sahara Desert 世界最长河流(约 6650 千米),流经 11 个非洲国家,孕育了古埃及文明,是非洲重要的水源与农业命脉。 位于委内瑞拉,是世界最高的不间断自由落体瀑布,总高 979 米,主落差 807 米,藏于圭亚那高原雨林中。 世界最大的热带沙漠,横跨北非 11 国,总面积约 932 万平方千米,地貌以沙丘、戈壁、绿洲为主,气候极端干旱。 尼罗河 安赫尔瀑布(天使瀑布) 撒哈拉沙漠 Mount Qomolangma Dead Sea Mariana Trench 位于西北太平洋,是全球最深的海沟,最深处挑战者深渊约 10994 米,是板块俯冲形成的深海洼地。 位于以色列、约旦、巴勒斯坦交界处的内陆盐湖,湖面海拔约 - 430.5 米(世界陆地最低点),盐度极高,人可轻松漂浮。 喜马拉雅山脉主峰,世界海拔最高峰(8848.86 米),位于中国与尼泊尔边境,山体呈金字塔状,终年积雪。 珠穆朗玛峰 死海 马里亚纳海沟 1.The Nile river is in Africa. It is the longest river in the world. It is 6,670 kilometers long. 尼罗河位于非洲。它是世界上最长的河流,全长 6670 公里。 2.Angel Falls lies in South America. It is the tallest waterfall on earth. It is 979 meters high. 天使瀑布位于南美洲。它是地球上最高的瀑布,高 979 米。 3.Mount Qomolangma is in Asia.It is the highest mountain in the world.It is 8,848 meters high. 珠穆朗玛峰位于亚洲。它是世界上最高的山峰,高 8848 米。 4.The Dead Sea is in West Asia. It is the lowest place on earth. It is 416 meters below sea level. 死海位于西亚地区。它是地球上海拔最低的地方。其海拔低于海平面 416 米。 5.The Sahara desert lies in North Africa. It is the biggest desert in the world. It is about 9,000,000 square kilometers in size. 撒哈拉沙漠位于北非。它是世界上最大的沙漠。其面积约为 900 万平方公里。 6.The Mariana Trench is in the Pacific Ocean.It is the deepest point in the ocean.It is about 11,000 meters deep. 马里亚纳海沟位于太平洋。它是海洋中最深的地方。其深度约为 11000 米。 1a Match the places with the pictures. Nile River Angel Falls Mount Qomolangma Dead sea Sahara Desert Mariana Trench A D B E C F F C A E D B 1b Listen to the game show. Complete the descriptions of the places. 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 highest mountain biggest desert lowest place deepest point 1c Try to read the following numbers. 英语数字的读法 416 8,848.86 11,000 9,000,000 英语中,数字从后往前数,每三位标一个逗号。 例: 9,000,000 百位和十位中间加and 小数点读作point, 小数点后的数字逐个单独读出。 thousand million Try to read the following numbers. 416 8,848.86 11,000 9,000,000 416 8,848.86 11,000 9,000,000 four hundred and sixteen eight thousand, eight hundred and forty-eight point eight six eleven thousand nine million 1c Listen again. Complete the measurements. Place Measurement Mount Qomolangma _metres high Sahara Desert about _square kilometres in size Dead Sea _metres below sea level Mariana Trench about_metres deep 听力技巧:精听,边听边记录关键数据。 8,848.86 9,000,000 416 11,000 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... 1d Talk about the places you have learnt about. A: What’s the lowest place on earth? B: It’s the Dead Sea. A: How low is it? B: Its surface is 416 metres below sea level. A: What’s the highest mountain in the world? B: It’s Mount Qomolangma. A: How high is it? B: It’s 8,848.86 metres high. e.g. A:地球上最低的地方是哪里? B:是死海。 A:它到底有多低? B:其水面低于海平面 416 米。 A:世界上最高的山是哪座? B:是珠穆朗玛峰。 A:它有多高? B:它高 8848.86 米。 e.g. A: What’s the biggest desert on earth? B: It’s the Sahara Desert. A: How big is it? B: It is about 9,000,000 square kilometers in size. A: What’s the deepest point in the ocean? B: It’s the Mariana Trench. A: How deep is it? B: It’s about 11,000 meters deep. A:地球上最大的沙漠是哪个? B:是撒哈拉沙漠。 A:它的面积有多大? B:大约有 900 万平方公里。 A:海洋的最深处是多少? B:是马里亚纳海沟。 A:有多深? B:大约有 11000 米深。 10,909 metres 200 metres 3,800 metres over 2,000 metres Listen again. Complete the sentences with the facts from the conversation. . 2c 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 “see”. Some can even create their own_. 4. There is rubbish even at _ metres deep. ocean floor 2020 blind light 11,000 Ms Gao: Thank you for the wonderful talk, Mr Jones. Now, does anyone have any questions? Emma: I do! Why are so many countries researching the deep sea? Mr Jones: Well, curiosity is one reason. We don’t know enough about the ocean floor. Fu Xing: I remember that in 2020, China’s Fendouzhe dived deeper into the Mariana Trench than many other submersibles 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 unusual. Some animals are blind, but they can “see” as well as others. Some even create their own light! 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 shocked many people. Ms Gao: That’s terrible! We should do something about it. Mr Jones: You’re right! 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 and cold.There is no sunlight. The water pressure is very high.Some strange animals live in it. A: Why is it important to research the deep sea? B: Because it can help us protect the planet and learn more about the world we live in. Lavf59.14.100 null 76538.43 Lavf58.20.100 Blues 85133.555 Blues 80979.68 $