Unit 4 The wonders of nature Section A 1a～1d 教案 2025-2026学年人教版英语八年级下册

课 题 Unit 4 The wonders of nature Section A 1a-1d 年 级 八 课 时 第一课时 备 课 教学目标 1. 语言能力：能听懂关于“世界自然奇观”的描述性对话；掌握核心词汇（wonder, measure, deep, high, square kilometre, below sea level）及句型（What’s the...? It’s... metres high/deep. Its surface is... metres below sea level.）；能用英语描述地理特征和测量数据。 2. 思维品质：通过匹配图片与名称、填写数据表格，培养观察力与信息整合能力；在讨论中比较不同地貌特征，提升逻辑表达与空间认知能力。 3. 文化意识：了解全球著名自然景观及其地理意义，增强对地球多样性的敬畏之心；树立环保意识，认识到保护自然奇观的重要性。 4. 学习能力：运用听力预测策略（看图表/关键词）捕捉关键信息；通过笔记记录具体数值和形容词最高级；在小组合作中学会提问与回应。 教学重难点分析 重点： 1. 掌握描述自然地貌的核心词汇与短语（e.g., the highest mountain, the deepest trench, below sea level）。 2. 听懂并准确填写听力中的地理数据（高度、面积、深度等）。 3. 熟练运用“What’s the...?” “It’s...” “Its surface is...”等句型进行问答交流。 难点： 1. 区分“high”（海拔高）与“deep”（海洋深）、“below sea level”（海平面以下）等概念的实际应用。 2. 理解大数字（如8,848.86 / 9,000,000）的英文读法与书写规范。 3. 在口语活动中流畅组织语言描述多个地理特征，避免混淆数据。 教学环节 Step 1 Warm-up & Lead-in (Picture Talk) 1. Show & Guess: Display the six pictures from 1a without labels. Ask: “What do you see? Where might these places be?” Elicit names like mountain, desert, river, waterfall. 2. Vocabulary Preview: Introduce key words: wonder, measure, deep, high, square kilometre, below sea level. Use real-life examples: “Mount Qomolangma is 8,848.86 metres high.” “The Dead Sea is 416 metres below sea level.” 3. Lead-in Question: “Which of these places have you heard of? Which one surprises you most?” Step 2 Pre-listening Matching (1a) 1. Match Places to Pictures: Students work individually or in pairs to match the place names (Nile River, Angel Falls, Mount Qomolangma, Dead Sea, Sahara Desert, Mariana Trench) with pictures A–F. 2. Check Answers Together: Project correct matches. Briefly introduce each location: - Angel Falls: Highest waterfall - Mariana Trench: Deepest ocean trench - Sahara Desert: Largest hot desert - Dead Sea: Lowest point on land - Mount Qomolangma: Highest peak - Nile River: Longest river (traditionally) 3. Pronunciation Drill: Practice saying the names aloud, especially Qomolangma, Mariana, Sahara. Step 3 While-listening (1b & 1c: Listening for Details) 1. First Listen (1b): Play the game show audio. Students complete the “Description” column using superlatives: - Mount Qomolangma → the highest - Sahara Desert → the largest - Dead Sea → the lowest - Mariana Trench → the deepest 2. Second Listen (1c): Play again. Students fill in the “Measurement” column with numbers from the box: - 8,848.86 → Mount Qomolangma - 9,000,000 → Sahara Desert - 416 → Dead Sea - 11,000 → Mariana Trench 3. Focus on Language: Highlight sentence patterns: - “It’s ___ metres high.” - “Its surface is ___ metres below sea level.” - “About ___ square kilometres in size.” Step 4 Post-listening Speaking (1d: Pair Work & Discussion) 1. Model Dialogue: Teacher demonstrates with a student: A: What’s the lowest place on earth? B: It’s the Dead Sea. A: How low is it? B: Its surface is 416 metres below sea level. A: Now, what’s the deepest place in the ocean? 2. Pair Practice: Students take turns asking and answering about all four places using 1d structure. Encourage them to add extra info: “I think it’s amazing because...” 3. Group Challenge: Each group picks one wonder and creates a 30-second “travel ad” introducing it to classmates using target language. Step 5 Summary & Emotional Sublimation 1. Quick Review: Call out descriptions — students shout the place name (e.g., “the highest mountain!” → “Mount Qomolangma!”). 2. Value Sharing: “These wonders are gifts from nature. We should protect them, not destroy them.” Show short video clip or image of environmental damage vs. conservation. 3. Reflection Prompt: “If you could visit one of these places, which would you choose? Why?” Write 1–2 sentences as exit ticket. 作业布置 必做：Write 5 sentences describing two different wonders using the structure: “The [place] is the [superlative] in/on the [location]. It is ___ metres [high/deep/low].” 选做：Research one more natural wonder (e.g., Grand Canyon, Great Barrier Reef) and prepare a 3-sentence introduction to share next class. Include its measurement and why it’s amazing. 板书设计 Unit 4 The wonders of nature (Section A 1a-1d) Key Words: - wonder, measure, deep, high, square kilometre, below sea level Superlatives: - the highest → Mount Qomolangma (8,848.86 m) - the largest → Sahara Desert (9,000,000 km²) - the lowest → Dead Sea (416 m below sea level) - the deepest → Mariana Trench (11,000 m) Sentence Patterns: - What’s the ...? → It’s the ... - How ... is it? → It’s ... metres [high/deep/low]. - Its surface is ... metres below sea level. Theme: Nature’s Wonders → Respect & Protect 学科网（北京）股份有限公司 $