Unit 4 The Wonders of Nature Section A 1a-2d 课件 2025-2026学年人教版英语八年级下册

英语人教版八年级下册 The Wonders of Nature Section A 1a-2d Unit 4 Learning objectives 通过本节课的学习，学生能够： 1. 听懂谈论自然奇观的对话，获取关于世界之最 和深海探索的关键信息。 2. 初步运用“the + 最高级”句型与同伴就地理之 最的话题开展对话。 3. 通过角色扮演和讨论，阐述深海探索的意义， 表达对自然奇观的敬畏及保护环境的意愿。 重点 重点 Free talk Think and answer the questions. Do you like traveling? Where have you been? Did you see any mountains or rivers? Look and answer Look at this picture and answer the questions. Yes, I do. It’s Victoria Falls. It’s one of the world’s largest waterfalls. I also know . 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? Look and match Look at the pictures and match the places with the pictures. Nile River Angel Falls Mount Qomolangma Dead Sea Sahara Desert Mariana Trench A B C D E F F A D B E C 马里亚纳海沟 安赫尔瀑布 Listen and complete 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 Learn and read Learn how to read large numbers and try to read the numbers. 1, 000 300, 000 1, 000, 000, 000 9, 000, 000 20, 000 1000以上的基数词的表示法：先从右至左数每 位数加一个逗号，把数字分为若干段： 第一个逗号前的数字单位为 ， 第二个逗号前的数字单位为 ， 第三个逗号前的数字单位为 。 三 thousand(千) million(百万) billion(十亿) 1, 111, 111, 111 thousand million 8, 848. 86 9, 000, 000 416 11, 000 Practise 小数点读point 小数点后的数字单读 billion Learn and read Learn how to read large numbers and try to read the numbers. 416 8,848.86 11,000 9,000,000 416 → four hundred and sixteen 8,848.86 → eight thousand eight hundred and forty-eight point eight six 11,000 → eleven thousand 9,000,000 → nine million Listen and complete Listen again. Complete the measurements in 1b with the numbers below. Place Measurement Mount Qomolangma metres high Sahara Desert about square kilometres in size Dead Sea metres below sea level Mariana Trench about metres deep 8, 848. 86 9, 000, 000 416 11, 000 8, 848. 86 9, 000, 000 416 11, 000 Read and learn Read the conversation and learn the key language points. Host: Fu Xing: Host: Liu Hongyu: 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? It’s Mount Qomolangma! Correct! How high is it? I know this - it’s 8, 848. 43 metres high. 1. as ... as as + 形容词/副词原级 + as，意为“和……一样”。 拓展：as ... as one can为固定句型，意为“尽可能……地”，相当于 as ... as possible。 Answer as quickly as you can! = Answer as quickly as possible! 尽可能快地回答！ Read and learn Read the conversation and learn the key language points. Host: Fu Xing: Host: Liu Hongyu: 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? It’s Mount Qomolangma! Correct! How high is it? I know this - it’s 8, 848. 43 metres high. 2. the highest mountain 结构：the + 形容词最高级 + 名词，意为“最……的……”。 形容词最高级前面通常要加定冠词the。 拓展：最高级的范围表达：后面常接in或of引导的介词短语来限定范围。 Tom is the most hard-working student in our class. 汤姆是我们班里最勤奋的学生。 Read and learn Read the conversation and learn the key language points. Host: Fu Xing: Host: Liu Hongyu: 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? It’s Mount Qomolangma! Correct! How high is it? I know this - it’s 8, 848. 43 metres high. 3. How high is it? How high...? 用于询问山、树木、建筑物等的高度。How high is it? = What’s the height of it? 注意：询问人或动物的身高要用 How tall...? How long/deep/wide is it? = What’s the length of/the depth of/the width of it? 它有多长/多深/多宽？ Read and learn Read the conversation and learn the key language points. Host: Fu Xing: Host: Liu Hongyu: 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? It’s Mount Qomolangma! Correct! How high is it? I know this - it’s 8, 848. 43 metres high. 4. It’s 8, 848. 43 metres high. 表达测量数据：基数词 + 单位名词 (常为复数) + 形容词。 8,848.43 读作：eight thousand eight hundred and forty-eight point four three。 注意：小数点读作 point，小数点后面的数字要逐个单读。 Let’s role-play Talk about the places you have learnt about. What’s the lowest place on earth? How low is it? It’s ... Its surface is ... metres below sea level. Now, what’s ... Look and complete 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 . D A C B Fendouzhe is a deep-sea submersible that has successfully taken scientists to the bottom of the sea. It has completed more than three hundred dives, reaching 10,909 metres deep in 2020. Listen and tick 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 Listen and complete 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 “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! Think and answer Read the conversation and answer the questions. 1. What do Emma, Fu Xing and Peter’s questions tell us about asking good questions? Good questions come from listening carefully and wanting to know more. They often start with Why, What, How. 2.Why does Mr Jones mention “rubbish at 11,000 metres deep”? What does this tell us about the deep sea? The deep sea is not only mysterious and amazing – it is also vulnerable. We should care about it even though it’s far away. Let’s role-play Read the conversation in 2b and role-play it in groups. Thank you for the wonderful talk, Mr Jones. Now, does anyone have any questions? I do! Why are so many countries researching the deep sea? ... Talk and share Read the questions and think of more you would like to ask the deep-sea researcher. Research the answers. 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? How many kinds of fish are there in the deep sea? Talk and share Ask and answer the questions with a partner. What is the largest shark in the deep sea? Because it is .... The is one of the largest sharks in the deep sea. Greenland shark Why is it important to research the deep sea? Discuss and share Discuss this question in your group. Humans have reached the deepest part of the ocean, but we also found rubbish there. How can we connect with nature in a better way? We don’t throw rubbish everywhere. We can use less plastic and recycle things. We should plant more trees and protect wild animals. Exercises 1. The Greenland shark is one of the (large) sharks in the deep sea. 2. Scientists found some (usual) animals at the bottom of the sea. They look very strange! 3. Humans have reached the (deep) part of the ocean, but we still found rubbish there. 4. Mount Qomolangma is one of the most beautiful (wonder) in the world. 用括号内所给单词的适当形式填空。 unusual largest deepest wonders Summarize After learning this lesson, I can memorize the new words. wonder, desert, measurement, below, level, surface, depth, dive, submersible, unusual, bottom, ... talk about geography facts. — What’s the lowest place on earth? — It’s ... — How low is it? — Its surface is ... know superlatives & large numbers. 1. the + 最高级 2. 准确数： 具体数字+thousand/million (不加-s) 1. Write 3 sentences introducing natural wonders using superlatives and numbers. 2. Search for more information about China’s “Fendouzhe” or other natural wonders and make a “Nature Card” (including name, location, facts). Homework null 87197.43 Audio generated by ttsmaker.cn null 2448.0 Audio generated by ttsmaker.cn null 2208.0 Audio generated by ttsmaker.cn null 2352.0 Audio generated by ttsmaker.cn null 2736.0 Audio generated by ttsmaker.cn null 2256.0 null 87798.305 null 70634.18 $