Unit 4 对话解析 2025-2026学年人教版八年级英语下册

Unit 4 The Wonders of Nature 对话一 Host: Welcome to our game show! Today, it's all about geography. Answer as quickly as you can! Question one: What is the highest mountain in the world? Fu Xing: It's Mount Qomolangma! Host: Correct! How high is it? Liu Hongyu: I know this— it's 8,848.43 metres high. Host: No, sorry. Fu Xing? Fu Xing: Is it 8,848.86 metres? Host: Yes! But some scientists say Qomolangma is still growing taller! Now, name the biggest desert in the world. Fu Xing: The Taklimakan Desert? Host: Wrong! Ella? Ella: It's the Sahara Desert. Host: Right! Now, how big is it? Ella: It's about 9,000,000 square kilometres. Host: That's right! What's the lowest place on earth? Liu Hongyu: It's the Dead Sea! Host: Well done! Its surface is 416 metres below sea level. Now where's the deepest point in the ocean? Fu Xing: It's in the Mariana Trench. Host: That's correct! How deep is it? Fu Xing: It's about 11,000 metres deep. Host: Correct! 重点句型 1. —What is the highest mountain in the world? — It's Mount Qomolangma. 2. —How high is it? —It 's 8,848.86 metres high. 3. —What is the biggest desert in the world? —It’s the Sahara Desert. 4. —How big is it? —It’s about 9000000 square kilometers. 5. —What’s the lowest place on earth? —It’s the Dead Sea. 6. Its surface is 416 metres below sea level. 7. —Where is the deepest point the the ocean? —It's in the Mariana Trench. 8. —How deep is it? —It's about 11,000 metres deep. 要点详解 1. host n.主人，主持人v.主持，举办 2. game show 游戏节目，有奖竞赛节目 3. geography 地理 4. as quickly as you can 越快越好 同义替换as soon as possible 5. the highest mountain 最高峰 6. correct adj.正确地 7. name n.名字 v.命名，说出 8. the biggest desert 最大的沙漠 9. square kilometer平方千米 10. the lowest place on earth 世界最低点 11. surface n.平面，表面 12. the deepest point 最深点 13. ocean 海洋 14. Correct！/ That's correct!/ Well done!/ Right!/ That’s right!/ Yes! 回答正确 Wrong！/ No，sorry. 回答错误 14 . highest,biggest,lowest,deepest 为最高级形式，适用于形容词与副词，意思为“最….”. 对话二 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! 重点句型 1. —Does anyone have any questions? —Yes, I do. 2. —What are deep- sea animals like? —Many deep-sea animals are large and unusual. 3. Are there any other surprising facts about the deeps sea? 4. That’s terrible. 要点详解 1. research v/. 研究～ researcher 研究员 2. curiosity n.好奇～ curious 好奇的 be curious about.. 3. reason n.理由 4. ocean floor 海底 5. dive v. 潜水 dive into….潜入 6. submersible 潜水器 7. film n.电影，胶片 v.拍摄 8. deep- sea animal 深海动物 9. what be….. like. 是什么样子的?=what ….look like? 10. large adj.巨大的 11. unusual adj.不寻常的，罕见的～反义词 usual 12. blind adj.失明的 the blind 盲人 13. see as well as others 视力和其他生物一样好 14. create v.创造 ～creative 有创造力的～creativity创造力 15. light n. 光线adj.轻的 16. surprising adj.令人惊奇的～ surprised 感到惊奇的 17. fact n.事实 短语 in fact 事实上 18. rubbish 垃圾 19. shock v/n 震惊 ～ shock sb.使某人震惊 shocked 感到震惊的 shocking 令人震惊的 20. terrible adj.糟糕的 3a Yaming: Welcome back, Ella! How was your trip? Ella: It was great！ We saw the Hukou Waterfall on the Yellow River. Is that the longest river in China? Yaming: No, the Yangtze River is the longest river in China. It travels the farthest and is about 6,300 kilometres long. The Yellow River is 5,464 kilometres long and is the second longest. By the way, do you know why it's called the Yellow River? Ella: Because it's yellow? Yaming: Right. Some parts of the river carry brown and yellow earth. Ella: That's interesting！ I like learning about rivers. My favourite is the Nile. Did you know it's the longest river in the world? Yaming: Yes, it's 6,671 kilometres long. It's very important in Egypt's history. Ella: That's right. Both the Nile and the Yellow River helped ancient civilizations to develop. And they're still very important today. Yaming: Yes. In China, we even call the Yellow River our "mother river"！ Ella: We should protect them at all costs. 重点句型 1. —How was your trip? — It was great. 2. —It the Yellow River the longest river in China? —No, the Yangtze River is the longest river in China. 3. It travels the farthest and is about 6,300 kilometres long. 4. The Yellow River is 5,464 kilometres long and is the second longest. 5. —Do you know why it's called the Yellow River? —Because it’s yellow. 6. Some parts of the river carry brown and yellow earth. 7. I like learning about rivers. My favourite is the Nile. 8. Both the Nile and the Yellow River helped ancient civilizations to develop. 9. In China, we even call the Yellow River our"mother river"！ 10. We should protect them at all costs. 要点详解 1. Welcome back欢迎回来 2. It travels the farthest.流程最长 travel v.旅行；（河流，光，声音）移动 far 远～farthest 最远 3. by the way顺便问一下，顺便说一下 4. call v. 打电话，称为 be called 被叫作 call sb/sth+名词 把….叫作….. 5. part of 部分…. 6. carry v.搬运，携带 7. earth n.地球，大地，泥土 8. learn about 了解 9. Egypt 埃及 10. both两者都 遇代词时both of ….. 11. ancient 古代的 12. civilization 文明 13. develop v.发展 ～n. development 14. protect v.保护～n. protection 15. at all costs 不惜一切代价 学科网（北京）股份有限公司 $