Unit4 第三课时 SectionA（3a～3d)课件-2025-2026学年人教版英语八年级下册

该初中英语课件围绕“自然奇观”核心主题，聚焦河流相关英语表达，涵盖比较级、最高级和大数字运用，结合中外地理知识。课堂通过壶口瀑布图片提问导入，衔接Pre-listening听力任务（黄河、尼罗河对比），再到对话角色扮演与词汇练习，构建从输入到输出的学习支架。 其亮点在于融合语言能力、文化意识和思维品质培养。借助听力音频分析对话逻辑，角色扮演中运用比较级交流地理知识，如对比黄河（5464km）与尼罗河（6671km）的长度及文明意义，Post-reading讨论河流保护措施。采用任务型教学与合作学习，总结梳理河流数据，助力学生提升语言运用与跨学科能力，为教师提供结构化素养培养路径。

Unit 4 The Wonders of Nature Section A 3a-3d 分析对话中信息推进的逻辑，以及人物互动延续对话的技巧。 与同伴分角色表演对话，体会对话人物的情感态度，并做到语音，语调正确，语流自然。 01 02 理解河流对国家文明的形成和发展的历史作用，正确看待人与自然的关系，树立环保意识，坚定文化自信。 03 Learning Goals 与同伴合理接续对话，运用比较级和最高级，大数字以及跨学科知识交流中外地理知识。 Pre-listening What can you see in the picture? A waterfall. What’s the name of the waterfall? It’s Hukou Waterfall. Which river does it from? It’s from the Yellow River. 1. Where did Ella go on her trip? A. The Yangtze River. B. The Yellow River. C. The Nile. 2. How long is the Nile ? A. 6300 kilometers B. 5464 kilometers C. 6671 kilometers 3. What do the Nile and the Yellow River have in common? A. They both run through China. B. They both have yellow and brown water. C. They both helped ancient civilizations develop. Ella and Yaming are talking about rivers. Listen to their conversation and choose the correct answer. 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 Egypt 5,464 6,671 civilizations /dɪˈveləpmənt/ n. 发展 While-listening Listen to the conversation. Then role-play it. 3c Pay attention to the expressions. 最长的河流 流经的距离最远 ……公里长 第二长 “the+序数词+最高级”表示“第……最……的” ……和……都 古代文明 call sb./sth. ... 把某人/物叫做…… 顺便说一下 了解/学习…… 不惜任何代价 Translate the expressions into English. 1. 流经的距离最远 2. 顺便说一下 3. 第二长 4. ……和……都 5. 不惜任何代价 6. 古代文明 7. 最长的河流 8. ……公里长 9. 了解/学习…… 10. 把某人/物叫做…… travel the farthest by the way the second longest both...and... at all costs ancient civilization the longest river ... kilometres long learn about call sb./sth. ... ✸Gives life孕育生命 ✸gives food and water ✸Helps people travel ✸Brings rich soil for farming Agriculture Society Civilization Think思考 :What does a mother river do? 、 What’s the Yellow River like now? Post reading What could we do to protect rivers? stop dumping waste into rivers reduce chemical use plant trees along river banks Imagine that you are Yaming or Ella. Continue the conversation with a partner about other geographical features in China. 3d For example: 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. /ˈdezət/ n. 沙漠 The largest waterfalls Huangguoshu Waterfall (黄果树瀑布) The largest saltwater lake Qinghai Lake (青海湖) The largest desert Taklamakan Desert (塔克拉玛干沙漠) Sum up what you have learned. Natural wonders the Yellow River the Yangtze River the Nile Great rivers Summary Reflecting How well can you do these things? Very well OK Needs work 1. 分析对话中信息推进的逻辑，以及人物互动延续对话的技巧。与同伴分角色表演对话，体会对话人物的情感态度，并做到语音，语调正确，语流自然。 2.与同伴合理接续对话，运用比较级和最高级，大数字以及跨学科知识交流中外地理知识。 3. 理解河流对国家文明的形成和发展的历史作用，正确看待人与自然的关系，树立环保意识，坚定文化自信。 Self-check null 94172.805 Lavf58.20.100 null 93180.055 Lavf59.27.100 Packed by Bilibili XCoder v2.0.2 Lavf58.29.100 Packed by Bilibili XCoder v2.0.2 $