Unit 4 Section B (2a-4c）（第5课时）-【绿卡初中创新题】2025-2026学年八年级下册英语同步课件(人教版·新教材) 安徽专版

该初中英语课件围绕“自然奇观”主题，涵盖risky等词汇、how句型及形容词反义词，通过“为何探索自然”导入，以反义词匹配、句型练习、阅读分析搭建支架，逐步过渡到广告写作与海报设计，形成“输入-内化-输出”学习链。 其亮点是任务驱动与核心素养结合，分析广告中数字和形容词的persuasive作用培养思维品质，小组合作设计海报提升学习能力，融入青海湖等中国奇观渗透文化意识。教师可借完整流程高效教学，学生在实践中增强语言运用与跨文化理解能力。

第 5 课 时 （2a~4c） Unit 4 The Wonders of Nature Section B Why do we explore nature? 单词：risky、southern、curious、traveller、natural、coast、 include、sand、alive 短语：most of the year、after all、located on、take up 句型：①How far is it from...to...? ②How heavy is...? ③How large is...? ④How often...? ⑤...is one of the...to... ⑥If you..., you will... 能够了解英语中一些形容词的反义词，学会用形容词描述自然景观并设计海报。 Learning Goals 1 2 3 Vocabulary in Use Match the words on the left with their opposites on the right. _____ 1. below ____ 2. common _____ 3. low _____ 4. dead _____ 5. top _____ 6. northern _____ 7. risky _____ 8. survive A. safe B. bottom C. southern D. above E. unusual F. living G. high H. die D E G F B C A H 2a 南部的；向南的 Read the examples and make more sentences using how and the words in the box. How far is it from your home to school? How heavy is a blue whale? How large is your country? How often do you exercise? long high deep old fast soon 1.________________________ 4.________________________ 2.________________________ 5.________________________ 3.________________________ 6.________________________ How long have you studied here? How high is the mountain? How deep is Qinghai Lake? How old is the man? How fast can you run? How soon will you be back? 2b 询问路程或距离 询问重量 询问面积或规模 询问频率 Complete the passage with the correct forms of the words in the box. Located in Siberia, Russia, Lake Baikal is one of the world’s most famous lakes. It is the____________ freshwater lake in the world. To reach the bottom, you must____________1,620 metres! It is also larger than most other lakes. Its____________covers 31,500 square kilometres. That is bigger than the country of Belgium! Lake Baikal is cold most of the year. But over 1,200 different types of animals can still____________ in this environment. Today, the lake still attracts many curious travellers. After all, it is a great natural ____________! deep survive wonderful surface dive deepest dive surface survive wonder 2c the Great Barrier Reef 大堡礁 Do you know the biggest coral reef in the world? Do you love the ocean? Do you want to visit one of the natural wonders of the world? If so, visit the Great Barrier Reef! Located on the northeastern coast of Australia, the Great Barrier Reef is one of the most amazing places to visit. It is the biggest coral reef in the world. It takes up an area of 345,000 square kilometres and includes many islands and white sand beaches. The Great Barrier Reef is also alive! If you visit it, you will see the largest living structure on earth. Here, you can swim or dive in the clear water and see coral, plants, and colourful fish. If you dive deeper, you might even see large fish, turtles, and sharks. For people who love the ocean, visiting the Great Barrier Reef is the dream of a lifetime! Read the advertisement. Circle the numbers and underline the adjectives used to describe the Great Barrier Reef. 3a The Great Barrier Reef: An Amazing Underwater World Think and discuss What are the functions（作用） of numbers and adjectives used in an advertisement? amazing biggest alive largest 345,000 number adjectives persuasive（可信的） & impactful（有冲击力的） more vivid（生动的）& more attractive Read the text again and fill in the key information. What Where Special fact Things to do on the northeastern coast of Australia the Great Barrier Reef 1. the biggest coral reef →an area of 345,000 km2 2. alive→the largest living structure on earth 1. swim or dive in the clear water 2. see coral, plants, and colourful fish; dive deeper→even see large fish, turtles and sharks Read a student’s notes on Qinghai Lake. Rewrite them in full sentences. 3b ·What: a salt lake ·Where: Qinghai Province, China ·Special fact: the largest lake in China（4,340 ） ·Things to do: photograph wildlife （fish and birds）, visit islands, ride a bike or horse Qinghai Lake 咸水湖 拍摄 1. Qinghai Lake is a _________ in _______________________. 2. Qinghai Lake is _______________ in China. 3. It is ______________________ in size. 4. If you visit Qinghai Lake, you can __________________ ________________________________________________. salt lake  Qinghai Province, China    the largest lake     4, 340 square kilometres photograph wildlife （fish and birds）, visit islands, ride a bike or horse Write an advertisement for Qinghai Lake or another natural wonder. Try to make your advertisement as persuasive as possible. 3c Qinghai Lake: China’s Salt Lake Wonder Do you want a peaceful trip with natural beauty? Then Qinghai Lake is your perfect choice! Located in Qinghai Province, China, Qinghai Lake is the largest lake in the country—covering 4,340 square kilometres of saltwater. Its vast, blue surface meets the sky, creating a picture-perfect view you won’t forget. Here, you can find unique wildlife（including rare fish and birds）, explore quiet islands, or ride a bike or horse along the golden shoreline. Whether you’re a nature lover or a photography fan, Qinghai Lake offers a once-in-a-lifetime experience of calm and beauty. Don’t miss this amazing natural treasure! 写作范文 Design a poster about a natural wonder Work in a group. Choose a natural wonder (a river, lake, mountain, forest, waterfall, etc.). Then do some research and make notes. name location and size plants and animals special facts 4a Name Location and size Plants and animals Special facts Victoria Falls on the border of Zambia and Zimbabwe, about 1.7 kilometres wide and 108 metres high many animals like elephants, hippos and birds live nearby one of the world’s largest falls, a UNESCO World Heritage Site Make a poster about the natural wonder you chose. Refer to the example on the right. 4b the world’s largest sheet of falling water 1708 metres wide, 108 metres high on the border between Zambia and Zimbabwe locally known as “Mosi-oa-Tunya” (“The Smoke That Thunders”) a UNESCO World Heritage Site with rich wildlife like elephants, hippos and over 400 bird species Victoria Falls As a group, give a report to the class. Pay attention to the use of large numbers, comparatives, and superlatives. The Amazon Rainforest is the world’s biggest rainforest. It covers 6 million square kilometres. You can see most of it in three countries, Brazil, Peru, and Colombia … 4c 1. Located on the northeastern coast of Australia, the Great Barrier Reef is one of the most amazing places to visit. 大堡礁位于澳大利亚东北海岸，是最令人惊叹的旅游胜地之一。 coast作名词，意为“海岸；海滨”，指的是“陆地和大海（或大湖）交界的地方”，可以理解为“海边的陆地边缘”。on the coast意为“在海岸上”；along the coast意为“沿着海岸”。 coast 指海岸（陆地与海的交界带），通常指的范围大（包括沙滩、岩石等） beach 指海滩（海岸上的沙滩），通常指的范围小（仅指沙子覆盖的地方） Language points “one of…” 意为“……之一”，后接名词或代词的复数形式。作主语时，谓语动词用单数。 One of the paintings is very famous. 其中一幅画很有名。 拓展 “one of the+形容词最高级+可数名词复数”意为 “最……的……之一” It is one of the oldest buildings in town. 它是镇上最古老的建筑之一。 2. It takes up an area of 345,000 square kilometres and includes many islands and white sand beaches. 它占地345,000平方千米， 包括许多个岛屿和白色沙滩。 include后可接名词或动词-ing形式，指包括了一个整体中的部分内容或项目等；including后跟名词或代词作宾语。 include v. 包括； 包含 Your duties include putting the children to bed. 你的职责包括安顿孩子们去睡觉。 including prep. 包括 ……在内 The band played many songs, including my favourites. 乐队演奏了许多歌曲，包括我最喜欢的。 3. The Great Barrier Reef is also alive! 大堡礁也是有活力的！ alive 意为“活着；有生气的”，作后置定语、宾语补足语或表语，但不能用在名词前作定语 living 意为“有生命的；活着的”，可作前置定语或表语，作表语时相当于alive lively 意为“生动的；活泼的”，可以用作定语、表语或宾语补足语 Is your grandma still alive? 你奶奶还健在吗？ He is one among the living men. 他是那些活着的人之一。 The video offers a lively account of her travels. 视频中生动地描绘了她的旅行见闻。 本句结构为：If+从句（主语+谓语+宾语）+主句（主语+谓语+宾语），表示“如果满足某个条件，那么主句中的情况就会发生”。当if引导条件状语从句时，从句用一般现在时表示将来。即“主将从现”。 If you study hard, you will pass the exam. 如果你努力学习，你就会通过考试。 If it rains, we will stay at home. 如果下雨，我们就会待在家里。 4. If you visit it, you will see the largest living structure on earth. 如果你参观它，你会看到地球上最大的生物结构。 一、在括号中填入适当的单词或用所给词的适当形式填空 Practice 1. China is one of __________（old） countries in the world. We are all proud of it. 2. He lives in a town _______ the south coast of England. 3. She’s one of the most famous ________（live）writers in the world. 4. The party was so ________（live） that everyone danced until midnight. 5. If it __________（not rain） tomorrow, we will go to the beach. the oldest on living lively doesn’t rain 二、书面表达 我国幅员辽阔，山川秀美，到祖国各地旅游是一件非常惬意的事情。假设你是王涛，请用英语介绍一下我国美丽的南沙群岛。 提示：1. 南沙群岛位于中国南海，最远的岛屿距离海南岛大约1,600千米；由200多 座岛屿组成，面积约为88.6万平方千米； 2. 资源丰富：有各种各样的海洋生物，矿产资源丰富； 3. 景色优美，将来会成为一个旅游胜地。 参考词汇：the Nansha Islands 南沙群岛；mineral resources 矿产资源；scenery 景观 Hello, everyone. I’m glad to tell you something about the Nansha Islands of China. The Nansha Islands are a group of islands in the South China Sea and the farthest island is about 1,600 kilometers away from Hainan Island. They consist of more than 200 islands and cover an area of about 886,000 square kilometres. The Chinese people have been living and working there for more than 2,000 years. They are rich in natural resources. There are many different types of sea animals and lots of mineral resources in the sea. What's more, they are famous for their beautiful scenery. With the development of these islands, they are sure to become tourist attractions of China. Thank you for listening! 绿卡图书—走向成功的通行证 null 62797.09 $