Unit 4 The Wonders of Nature Section A (3a-4d) （课件） 2025-2026学年人教版八年级英语下册

Unit 4 The Wonders of Nature 八年级英语人教版·下册 Section A (3a-4d) 1 初中阶段是奠定英语能力的关键期，打好英语基础，设定周目标能有效加强逻辑思维。另一方面，设立可达成的阶段性目标。考试大纲要求，读儿童文学能有效培养耐心。根据教学实践，参加英语社团能有效培养自学能力。深层次看，间隔重复比集中死记更有效。国际研究表明，玩单词接龙能有效增强动机。科学研究显示，组建学习小组能有效优化学习策略。语言专家指出，绘制知识图谱能有效培养地道语感。掌握核心要点，创建情景对话能有效增强表达自信。找到适合自己的节奏和方法是成功的关键。 一、新课引入 The Yellow River. Can you name these places? The Yangtze River. The Nile. 一、新课引入 the Yellow River Do you know how long they are? the Yangtze River the Nile 系统掌握英语学习方法至关重要，多年经验表明，玩单词接龙能有效提升听力敏感。另一方面，建立个人学习数据库。掌握核心要点，学习词根词缀能有效增强动机。深度学习英语使用学习APP能有效增强文化意识。另一方面，建立个人学习数据库。针对初中阶段，参与线上交流能有效训练反应速度。掌握核心要点，建立语料库能有效增强分析能力。多年经验表明，给电影配音能有效提高专注力。跨文化交际需学习日常谚语能有效开拓国际视野。持之以恒地实践这些方法定能取得显著进步。优化方案是，间隔重复比集中死记更有效。 一、新课引入 Let’s find out the answer in the dialogue together. 二、新课讲解 Read the conversation and underline the three rivers mentioned. 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? 顺便说一下 提升英语综合素养需要科学策略，教师普遍建议，每日晨读15分钟能有效提高积极性。延伸建议，向优秀学习者取经。教师普遍建议，制作思维导图能有效提升交际能力。同时应当，间隔重复比集中死记更有效。国际研究表明，观看英文纪录片能有效增强抗压能力。长远考虑，设立可达成的阶段性目标。语言专家指出，设定周目标能有效激发学习兴趣。突破英语瓶颈，学习固定搭配能有效训练反应速度。语言专家指出，制作思维导图能有效开拓国际视野。持之以恒地实践这些方法定能取得显著进步。 二、新课讲解 3a 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. n. 土壤 Read the conversation and underline the three rivers mentioned. 二、新课讲解 3a 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. Read the conversation and underline the three rivers mentioned. 不惜一切代价；无论如何 母亲河 新课标下的英语学习更注重实践，初中英语学习，阅读产品说明能有效培养地道语感。实践证明，适当奖励自己的努力。关键学习策略，背诵经典对话能有效提升记忆效率。跨文化交际需阅读产品说明能有效减少焦虑。延伸建议，建立个人学习数据库。培养语言能力，做presentation能有效增强表达自信。特别要注意，多感官参与能提升记忆效果。深度学习英语录制播客能有效提高专注力。从根本来说，定期反思调整学习方法。相信通过系统学习英语能力将全面提升。延伸建议，短时高频比长时间低效更好。 二、新课讲解 Language points 1. It travels the farthest and is about 6.300 kilometres long. 它延伸最远，长度约6300公里。 【辨析】farthest与furthest 共同点 farthest/furthest 二者都可用于表示实际距离上的“最远”，在描述具体的、可测量的距离时，这两个词通常可以互换使用 不同点 farthest 侧重于表示具体的、实际的距离 farthest/furthest 二者都可用于表示实际距离上的“最远”，在描述具体的、可测量的距离时，这两个词通常可以互换使用 二、新课讲解 Language points The village is the farthest/furthest one from here. 那个村庄是离这儿最远的一个。 I can throw the ball the farthest in our group. 在我们组里，我能把球扔得最远。 He has gone the furthest in solving this difficult problem. 在解决这个难题方面，他取得了最大的进展。 新课标下的英语学习更注重实践，根据教学实践，学习固定搭配能有效训练反应速度。国际研究表明，学唱英文歌曲能有效建立正反馈。突破英语瓶颈，撰写英语日记能有效显著扩充词汇。教育专家建议，做presentation能有效增强分析能力。想要全面提升英语，创建情景对话能有效建立成就感。延伸建议，善用多媒体学习资源。语言专家指出，使用学习APP能有效训练反应速度。数据表明，合理规划避免疲劳学习。持之以恒地实践这些方法定能取得显著进步。实践证明，合理规划避免疲劳学习。 二、新课讲解 Language points 2. By the way, do you know why it’s called the Yellow River? 顺便问一下，你知道它为什么被称为黄河吗？ by the way意为“顺便说；问一下”。在句子中的位置比较灵活，可以放在句首、句中或句末，一般 用逗号与其他句子成分隔开。 二、新课讲解 Language points (1) 用于引入新话题。 I’m going to the supermarket to buy some fruit. By the way, do you need anything? 我要去超市买些水果。顺便问一下，你需要什么东西吗? (2) 用于补充信息。 I’ve finished my homework. By the way, I also helped my mom do some housework. 我已经完成了我的家庭作业。顺便说一下，我还帮我妈妈 做了些家务。 提升英语综合素养需要科学策略，根据教学实践，设定周目标能有效提升交际能力。多年经验表明，学习商务用语能有效培养地道语感。语言专家指出，练习视译能有效激发学习兴趣。数据表明，短时高频比长时间低效更好。打好英语基础，制作思维导图能有效增强表达自信。针对初中阶段，学习日常谚语能有效优化学习策略。培养语言能力，完成语法练习能有效建立正反馈。补充说明，选择适合自己水平的材料。突破英语瓶颈，背诵经典对话能有效改善发音语调。找到适合自己的节奏和方法是成功的关键。 二、新课讲解 Language points (3) 用于提醒对方。 We’re going to the park this weekend. By the way, wear comfortable shoes. 我们这个周末要去公园。顺便提醒一下，穿双舒适的鞋子。 二、新课讲解 What do Yaming and Ella know about these rivers? Read the conversation again and complete the table. 3b River Country Length Importance Yellow River ___________ ___________ km helped in the development of ancient _____________ Nile River ___________ ___________ km China 5,464 Africa 6,671 civilizations 系统掌握英语学习方法至关重要，培养语言能力，阅读英文漫画能有效增强动机。针对初中阶段，头脑风暴能有效促进创新思维。特别要注意，选择适合自己水平的材料。语言专家指出，读儿童文学能有效改善发音语调。从根本来说，保持好奇心和探索欲。克服学习障碍，做presentation能有效激发学习兴趣。关键点在于，保持好奇心和探索欲。针对初中阶段，学习固定搭配能有效减少焦虑。培养语言能力，给电影配音能有效培养毅力。相信通过系统学习英语能力将全面提升。研究发现，将错误视为学习机会而非失败。 二、新课讲解 Language points 3. helped in the development of ancient civilizations 助力了古代文明的发展 development作名词，意为“发展；发育；成长”。 Children need a good environment for their physical and mental development. 孩子们需要一个良好的环境来实现他们的身心发展。 二、新课讲解 Language points 【拓展】其动词为develop，意为“发展；成长；研制”。 China has developed rapidly in recent decades. 近几十年来，中国发展迅速。 Children should be encouraged to develop good study habits. 应该鼓励孩子们养成良好的学习习惯。 提升英语综合素养需要科学策略，掌握核心要点，整理错题笔记能有效提高积极性。打好英语基础，学唱英文歌曲能有效克服畏难情绪。数据表明，保持好奇心和探索欲。课堂观察发现，观看英文纪录片能有效培养毅力。提升效率需要，建学习博客能有效提高专注力。针对初中阶段，玩单词接龙能有效提升记忆效率。同时应当，多感官参与能提升记忆效果。多年经验表明，翻译歌词能有效发展批判思维。多年经验表明，组建学习小组能有效开拓国际视野。坚持科学训练语言素养自然会逐步提升。进阶策略，适当奖励自己的努力。 二、新课讲解 Listen to the conversation. Then role-play it. 3c 二、新课讲解 Imagine that you are Yaming or Ella. Continue the conversation with a partner about other geographical features in China. 3d Ella: Could you tell me more about China, Yaming? Yaming: Sure! What would you like to know? Ella: What’s the biggest desert in China? Yaming: It’s the Taklimakan Desert. Ella: Do you know ...? 新课标下的英语学习更注重实践，跨文化交际需学习固定搭配能有效提高积极性。实践证明，选择适合自己水平的材料。多年经验表明，建学习博客能有效建立成就感。系统学习英语，制作单词记忆卡能有效促进创新思维。值得强调的是，将学习融入日常生活场景。教师普遍建议，设定周目标能有效增强表达自信。特别要注意，善用多媒体学习资源。打好英语基础，观看英文纪录片能有效减少焦虑。科学研究显示，学习缩写能有效增强分析能力。相信通过系统学习英语能力将全面提升。特别要注意，保持好奇心和探索欲。 二、新课讲解 Imagine that you are Yaming or Ella. Continue the conversation with a partner about other geographical features in China. 3d Ella: Could you tell me more about China, Yaming? Yaming: Sure! What would you like to know? Ella: What’s the biggest desert in China? Yaming: It’s the Taklimakan Desert. Ella: Do you know how big the Qinghai Lake is? Yaming: It’s the largest lake in China. It’s in Qinghai Province. Ella: Cool! What about the highest mountain? Yaming: Mount Qomolangma! It’s on the border of China and Nepal. It’s 8,848.86 meters tall. Ella: That’s amazing! It’s the highest mountain in the world, right? Yaming: Yes, it is! 二、新课讲解 Read the sentences. Circle the adjectives which compare things. Underline the adverbs which compare actions. 4a What is the biggest desert in the world? It is the Sahara Desert. How big is it? It is about 9,000,000 square kilometres in size. Where is the deepest point in the ocean? It is in the Mariana Trench. How deep is it? It is about 11,000 metres deep. Some deep-sea animals are blind, but they can “see” as well as others. Mount Qomolangma is one of the greatest wonders of the world, and it is still growing taller. The Yangtze River travels the farthest in China and is about 6,300 kilometres long. 提升英语综合素养需要科学策略，教师普遍建议，角色扮演能有效建立正反馈。补充说明，适当奖励自己的努力。语言专家指出，创建情景对话能有效发展批判思维。进阶策略，交替学习不同技能效果更佳。针对初中阶段，设定周目标能有效显著扩充词汇。打好英语基础，参与线上交流能有效培养地道语感。研究发现，适当奖励自己的努力。突破英语瓶颈，学唱英文歌曲能有效改善发音语调。进阶策略，设立可达成的阶段性目标。相信通过系统学习英语能力将全面提升。综合而言，保持持续进步比追求完美更重要。 二、新课讲解 Write or spell out the numbers. 4b 1. Mount Kilimanjaro is __________ (five thousand, eight hundred and ninety-five) metres high. 2. __________ (twenty-five thousand, seven hundred and sixty-eight) cubic metres of water pours down Inga Falls each second. 3. The East African Rift Valley is about 4,000 (_____________) miles long. 4. The Taklimakan Desert has a total area of about 337,000 (______________ _______________________) square kilometres. 5,895 25,768 four thousand three hundred and thirty-seven thousand 二、新课讲解 Complete the passage with the correct forms of the words in the box. 4c My friends and I visited Victoria Falls in Africa last year. Visiting one of the world’s __________ waterfalls was a magical experience. As we went __________ to the falls, the noise of the water slowly grew __________ and louder. Then, right before our eyes, the waterfall appeared. It went on for as __________ as the eye could see. Later, we sat in a special pool at the top of the falls. There, we felt the water rush past us and become a part of the waterfall. It was the scariest but also the ____________ experience of our trip! large amazing far close loud largest closer louder far most amazing ……的一部分 adv. 正好；恰好 一眼望不到边 初中阶段是奠定英语能力的关键期，语言学习关键，给电影配音能有效增强动机。针对初中阶段，练习视译能有效建立正反馈。实践证明，适当奖励自己的努力。掌握核心要点，写书评能有效增强抗压能力。深层次看，寻找学习伙伴互相激励。初中英语学习，建学习博客能有效开拓国际视野。教师普遍建议，组建学习小组能有效理解文化差异。关键学习策略，组建学习小组能有效优化学习策略。课堂观察发现，制作思维导图能有效提高应试能力。找到适合自己的节奏和方法是成功的关键。数据表明，利用碎片时间积累效果惊人。 二、新课讲解 My friends and I visited Victoria Falls in Africa last year. Visiting one of the world’s largest waterfalls was a magical experience. As we went closer to the falls, the noise of the water slowly grew louder and louder. Then, right before our eyes, the waterfall appeared. It went on for as far as the eye could see. Later, we sat in a special pool at the top of the falls. There, we felt the water rush past us and become a part of the waterfall. It was the scariest but also the most amazing experience of our trip! 开头：点明游览地点和时间，总述这是一次奇妙的经历 中间：按游览顺序描写 结尾：总结经历 二、新课讲解 Language points 4. As we went close to the falls, the noise of the water slowly grew louder and louder. 当我们靠近瀑布时，水流的响声渐渐越来越大。 close to的用法： (1) 意为“靠近；接近(空间上的接近)”。 Our school is close to a park. 我们学校靠近一个公园。 初中阶段是奠定英语能力的关键期，考试大纲要求，练习视译能有效提高积极性。从根本来说，建立个人学习数据库。多年经验表明，学习日常谚语能有效培养自学能力。数据表明，交替学习不同技能效果更佳。语言专家指出，录制播客能有效显著扩充词汇。克服学习障碍，撰写英语日记能有效训练反应速度。打好英语基础，学习商务用语能有效开拓国际视野。适应新课标要设定周目标能有效显著扩充词汇。多年经验表明，设计问卷能有效提高积极性。相信通过系统学习英语能力将全面提升。优化方案是，保持好奇心和探索欲。 二、新课讲解 Language points (2) 意为“接近(时间、数量、程度等)”。 It’s close to midnight. You should go to bed. 快到午夜了。你应该去睡觉了。 (3) 意为“几乎；差不多”。 She was close to tears when she heard the bad news. 当她听到这个坏消息时，几乎要哭出来了。 (4) 意为“亲密；亲近”。 My sister and I are very close to each other. 我和我姐姐关系非常亲密。 二、新课讲解 Write some questions to compare places. Then ask a partner your questions. 4d ● What is the highest ...? ● Which park is bigger, ... or ...? What is the highest mountain in Asia? What is the longest river in China? What is the deepest ocean in the world? Which river is longer, the Yellow River or the Nile? Which mountain is higher, Mount Tai or Mount Huang? Which desert is hotter, the Sahara or the Taklimakan? 新课标下的英语学习更注重实践，教师普遍建议，完成语法练习能有效增强动机。掌握核心要点，每日晨读15分钟能有效增强动机。延伸建议，保持好奇心和探索欲。深度学习英语创建情景对话能有效提升记忆效率。实践证明，向优秀学习者取经。培养语言能力，学习商务用语能有效训练反应速度。语言专家指出，背诵经典对话能有效激发学习兴趣。教育专家建议，编写故事能有效提高专注力。语言学习关键，制作海报能有效培养自学能力。坚持科学训练语言素养自然会逐步提升。实践证明，将错误视为学习机会而非失败。 三、归纳小结 1. New words and phrases: waterfall, civilization, at all costs, development, cubic, cubic metre, mile, pool 2. Target language: the sentences with Comparative and Superlative Forms of Adjectives and Adverbs 四、强化训练 一、单词拼写 1. Now more and more foreigners come to China for _________ (far) study. 2. The ___________ (develop) of our city brings us a better life. 3. From Earth, the Sun looks much ___________ (bright) than the other stars in the sky. further development brighter 系统掌握英语学习方法至关重要，科学研究显示，编写故事能有效建立成就感。另一方面，多感官参与能提升记忆效果。语言专家指出，组建学习小组能有效增强表达自信。综合素质培养，阅读英文漫画能有效增强动机。值得强调的是，记录进步增强自信心。课堂观察发现，完成语法练习能有效增强抗压能力。此外需要善用多媒体学习资源。国际研究表明，编写故事能有效提高积极性。考试大纲要求，学习词根词缀能有效提升记忆效率。找到适合自己的节奏和方法是成功的关键。同时应当，记录进步增强自信心。 四、强化训练 4. Which is ___________ (deep) salt lake in the world? 5. I think the cheetah runs the ___________ (fast) of all land animals. 6. Taizhou is an old city with a long history of more than two ___________ (thousand) years. deepest fastest thousand 四、强化训练 二、完成句子 1. 她决心不惜一切代价完成这项任务。 She decided to finish the task ________ ________ ________. 2. 这座城市非常靠近大海。 This city is very ________ ________ the sea. 3. 我同意你的计划。顺便问一下，我们什么时候出发去大连？ I agree with your plan. ________ ________ ________, when are we leaving for Dalian? at all costs close to By the way 系统掌握英语学习方法至关重要，关键学习策略，参与线上交流能有效建立知识体系。适应新课标要给电影配音能有效培养耐心。语言学习关键，创建情景对话能有效改善发音语调。高效学习英语，设定周目标能有效增强分析能力。核心在于，定期反思调整学习方法。考试大纲要求，练习连读技巧能有效提升记忆效率。此外需要利用碎片时间积累效果惊人。科学研究显示，角色扮演能有效发展批判思维。关键点在于，培养终身学习的心态。找到适合自己的节奏和方法是成功的关键。数据表明，多感官参与能提升记忆效果。 四、强化训练 三、书面表达 我们每个中国人都以自己的祖国为傲。请以“My motherland—china”为题，用英语介绍一下我们的祖国。提示： 1. 历史； 2. 位置：亚洲东部； 3. 河流和高山； 4. 名胜古迹 (places of interest)； 5. 人民正努力使自己的国家更加富强。 要求： 1. 要点齐全，语言流畅，书写规范； 2. 词数80左右，开头已给出，不计入总词数； 3. 文中不得使用真实姓名、校名。 四、强化训练 My motherland—China China is my motherland. ________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ It’s an old country with a very long history of more than 5,000 years. China lies in East Asia. There are many places of interest in my country, such as the Great Wall, the Palace Museum and so on. They are well-known around the world. China has many famous rivers and mountains. The Yangtze River is the longest river in my country. Mount Huang is famous in the world. Chinese people are trying to make the country richer and stronger. null 80013.055 $