Unit4 Section B（2a-3c)课件2025-2026学年人教版英语八年级下册

Unit 4 The Wonders of Nature 第4课时 2a-3c Section B Why do we explore nature? 通过听、读、看等方式，获取并正确认读关于自然景观、旅行体验等主题词汇（如 amazing, natural, largest, alive, clear, colourful 等），感知描述性形容词和数词的用法。（学习理解） 01 通过阅读分析，获取文本中关于大堡礁、青海湖等自然景观的关键信息，归纳并内化描述地点特征、表达游玩建议的常用表达（如 Located on/in...; It is one of the...; It takes up an area of...; If..., you can...）（应用实践） 02 通过讨论和写作练习，理解描述自然景观的词汇在实际语境中的运用，能够主动用所学词汇介绍一处自己喜爱的自然景观，并认同保护自然奇观的重要性。（迁移创新） 03 学习目标 Let’s learn some opposite words. Taklimakan Desert塔克拉玛干沙漠 Sahara Desert撒哈拉大沙漠 large small Mount Qomolangma珠穆朗玛峰 Mount Tai 泰山 high long The Nile 尼罗河 The Yellow River 黄河 low short Match the words on the left with their opposites on the right. 2a 1.____ below　　　5. ____ top 2.____ common　　6. ____ northern 3.____ low　　　　7. ____ risky 4.____ dead　　　 8. ____ survive A. safe　　　 E. unusual B. bottom　　 F. living C. southern　 G. high D. above　　 H. die 在...下面 常见的 低的 死的 顶部 北部的 存活 north south 在...上面 安全的 底部 不寻常的 活着的 高的 死去 D E G F B C A H adj.有危险的 adj.南部的 Before the adventure, let’s learn some about “How”. Sahara Desert撒哈拉大沙漠 Mount Qomolangma珠穆朗玛峰 The Nile 尼罗河 How large is the Sahara Desert? How high is the Mount Qomolangma? How long is the Nile River? It’s about 9,320,000 square kilometres. It’s about 8,848.86 metres high. It’s about 6,670 kilometres long. 2b 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. 2. 3. 4. 5. 6. How long is the Yangtze River? How high is the Mount Kilimanjaro? How deep is the Mariana Trench? How old is the Lake Baikal? How fast can you run? How soon can we get there? Work with you partner, ask and answer. 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_________ ! 2c Complete the passage with the correct forms of the words in the box. deep survive wonderful surface dive deepest dive surface different types of 不同种类的 毕竟，终归 wonder survive What do you know about the Great Barrier Reef? The Great Barrier Reef: An Amazing Underwater 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. 占据(空间) 3a Read the advertisement. Circle the numbers and underline the adjectives used to describe the Great Barrier Reef. 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! 海龟 Read for content Read the title and the first two sentences. What kind of text is this? a story a news report an advertisement What is the purpose of an advertisement like this? To attract readers' interest, provide key information, and encourage them to visit. Read again. Circle the numbers and underline the adjectives used to describe the Great Barrier Reef. Read for language 3a Why does the writer use so many adjectives and numbers? Adjectives make descriptions more vivid(更生动). Numbers make information more specific.(更具体). They make advertisements more attractive and persuasive(更具吸引力和说服力) Read again and find the structure. Read for structure Hook 用问句吸引读者，引出主题 Details 介绍位置、规模、基本特色 Experience 描述旅游活动与独特景观 Call to action 用感叹句强化吸引力，鼓励前往 Read for content Read and complete the mind map. The Great Barrier Reef An advertisement Beginning Ending Do you love....? ...visiting...dream of a lifetime! 吸引读者 呼吁行动 Key information location: What’s special? size: What you can do/see? northeastern coast of Australia the most amazing places the biggest coral reef alive the largest living structure 345,000 square kilometres swim or dive in the clear water see coral, plants and colourful fish even see large fish, turtles and sharks 3b Read notes on Qinghai Lake. Rewrite them in full sentences. Qinghai Lake What: a salt lake Where: Qinghai Province, China Special fact: the largest lake in China (4,340 km2) Things to do: photograph wildlife (fish and birds), visit islands, ride a bike or horse 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, visit islands, ride a bike or horse the Great Barrier Reef the Qinghai Lake 原句：Located on the northeastern coast of Australia, the Great Barrier Reef is one of the most amazing places to visit. 模仿: 原句：It is the biggest coral reef in the world. 模仿： 原句：If you dive deeper, you might even see large fish, turtles, and sharks. 模仿： 1 2 3 Located in Qinghai Province, the northwestern of China, the Qinghai Lake is one of the most amazing places to visit. It is the latgest salt lake in China. If you walk along the lake, you might even see beautiful birds and colourful flowers. Group work to make some new sentences. the Qinghai Lake 用“if”引导的条件句和形容词比较级/最高级，描述青海湖的其他特色。 Qinghai Lake is more beautiful in summer. If you visit in July, you can see many birds and fields of blooming rape flowers(油菜花). Group work to make some new sentences. For example: If you stand by the lake and look to the distance, you will see the clearest blue water stretching to the sky. Finish the mind map and try to introduce Lake Baikal. Lake Baikal deepest surface located animals How deep? 1,620metres How large? 31,500 square kilometres How many? over 1,200 different types of animals Siberia, Russia Evaluation(评价) Complete content (内容完整) Correct language (语言准确) Clear voice (自信表达) Part 1 Hook 用问句吸引读者，引出主题 Details 介绍位置、规模、基本特色 Experience 描述旅游活动与独特景观 Call to action 用感叹句强化吸引力，鼓励前往 Part 2 Part 3 Part 4 Qinghai Lake: An Amazing Highland Wonder 3c Write an advertisement for Qinghai Lake . Try to make your advertisement as persuasive as possible. Do you love quiet lakes and amazing wildlife? Then visit Qinghai Lake! Located in Qinghai Province, it is the largest salt lake in China, covering 4,340 square kilometres. ... If you ... you can .../ you can see... Come to Qinghai Lake and make your dream come true! Title Writng time Write an advertisement for Qinghai Lake. Example: Qinghai Lake: An Amazing Highland Wonder Do you love quiet lakes and amazing wildlife? Then visit Qinghai Lake! Located in Qinghai Province, the northwestern of China, the Qinghai Lake is one of the most amazing places to visit. It is the largest salt lake in China, covering 4,340 square kilometres. If you visit Qinghai Lake, you can photograph wildlife, visit islands, ride a bike or horse. Qinghai Lake is more beautiful in summer. If you visit in July, you can see many beautiful birds and fields of blooming rape flowers. Walk along the lake and enjoy the clear blue water stretching to the sky—every view is a wonderful surprise. Come to Qinghai Lake and make your dream come true! What Mount Huangshan Where in the south of Anhui Province Special facts odd-shaped pines, special rocks, hot springs, a sea of clouds Things to do get to the top to see an amazing view, enjoy the view at sunrise 假如你明天下午要带你的外国朋友Justin去安徽黄山游玩，请根据下面表格中的内容提示写一篇英语短文，向他介绍一下黄山。 写作典例指导 Mount Huangshan lies in the south of Anhui Province in East china. 开头：引出话题，介绍黄山的概况 Mount Huangshan is famous for its renowned four wonders. get to the top to see an amazing view, stay overnight on the mountain to watch the sunrise 主体：介绍黄山的特别之处及可以进行的活动 Mount Huangshan is... I can’t wait to visit it. 结尾：总结并表达感受 1. 与特色相关 Mount Huangshan is famous for its pine trees and rocks in special shapes, a wonderful sea of clouds, and relaxing hot springs. 黄山以其奇形怪状的松树和岩石、奇妙的云海和令人放松的温泉而闻名。 In winter, snow covers the mountain and it becomes a white wonderland. 在冬天，雪覆盖了山，山变成了一个白色的仙境。 People call it the “sea of clouds” because sometimes clouds surround and cover the mountain peaks. 人们称它为“云海”，因为有时云朵环绕并覆盖着山峰。 好句积累 2. 与活动相关 We can walk up paths and steps to the top or take a cable car. 我们可以沿着小路和台阶走到山顶，也可以乘坐缆车。 We can enjoy the breathtaking view from the top of Mount Huangshan. 我们可以在黄山的山顶上欣赏壮丽的景色。 Many people like to stay overnight on the mountain to watch the sunrise. 许多人喜欢在山上过夜看日出。 Mount Huangshan lies in the south of Anhui Province in East China. It is only about 1,900 metres high, but it is one of the most amazing mountains in China. Mount Huangshan is famous for its renowned four wonders— the odd-shaped pines, special rocks, hot springs and a sea of clouds. It not only has a wonderful landscape, but also has a rich cultural heritage. Xu Xiake called it the best of all mountains in China. There are several ways to enjoy the beauty of Mount Huangshan. We can walk up paths and steps to the top or take a cable car. From the top, the whole view below looks like a beautiful painting. We can also stay overnight on the mountain to watch the sunrise. It is a fantastic view. Mount Huangshan is such a masterpiece of nature, and I can’t wait to visit it. Pair work to evaluate your writing. Evaluation content 1. 包含青海湖核心信息（咸水湖、位置、面积、中国最大湖） 2. 列出至少2项可体验活动 3. 突出独特卖点，有说服力 language 1. 正确使用形容词、数据和描述性词汇 2. 句式多样，无明显语法错误 3. 拼写准确，用词恰当 structure 1. 开头吸引人，结尾有号召力 2. 段落清晰，过渡自然 Evaluate your writing Evaluation Form 评价表 评价项目 标准分值 得分 Format 格式 1 Person 人称 2 Simple present tense 一般现在时为主 2 Content 内容 1. 基本情况 2.特别之处 3. 相关活动 8 Hand-writing 书写 2 语法或单词拼写错误酌情扣分 Total 总分 15 Writing travel advertisement Beginning Body (key information) Ending 用问句吸引读者，引出主题 Do you love...? Do you want to visit...? 位置：Located in/on/at... northeastern 规模：It takes up an area of 345,000 square kilometres. 特色：biggest, largest, longest... 体验：If you visit... you can do/see colourful... 用感叹句强化吸引力，号召前往 For people who love ..., visiting ... is the dream of a lifetime! Summary 假设你是张明，你的澳大利亚朋友 Alex 计划来中国体验自然景观。请你写一封邮件，向他推荐你喜爱的自然景观——桂林山水(Guilin's landscape)。 内容提示：1. 景观位置与基本概况 2. 独特之处（至少两点） 3. 游玩建议（如乘船、徒步等） 要求：1.包括全部内容提示，语言流畅，语法正确 2.100词左右，已给出部分不计入总词数 参考词汇：广西壮族自治区 the Guangxi Zhuang Autonomous Region；漓江 the Lijiang River；乘坐竹筏 take a bamboo-raft ride Dear Alex, I strongly recommend Guilin's landscape to you. ____________________________ Yours, Zhang Ming Homework Dear Alex, I strongly recommend Guilin's landscape to you. Yours, Guilin is in the Guangxi Zhuang Autonomous Region, famous for its beautiful mountains and clean water. The most special things are the strange-shaped mountains and the clear Lijiang River. The water is so clear that you can see the fish swimming. Also, the mountains look like different animals from different angles, which is really amazing. For fun, you can take a bamboo-raft ride down the Lijiang River to enjoy the views. You can also hike up the mountains for a bird's-eye view. I'm sure you'll have a great time here. Yours, Zhang Ming Example: null 62797.09 $