Unit 4 Section A（3a-3d）（同步教学课件） 2025-2026学年八年级英语下册同步教学精品课件（新教材人教版）

Section A 2a-2d Unit 4 The Wonders of Nature Learning Aims 语言能力 文化意识 思维品质 学习能力 1.掌握核心词汇：fantastic, town, breath, take one’s breath away, especially, steamed chicken soup, anywhere, nothing。 2.熟练运用句型：—How was your holiday? – It was... —Did you go anywhere interesting? – Yes, I went to... —Did you eat anything special? – Especially... 1能捕捉对话中假期地点、活动及感受的关键信息，提取细节并完成信息表格，模仿正确语调。 2.运用目标句型与同伴进行假期经历的问答练习，能用过去时连贯描述旅行经历。 1.能根据提示设计 “微信朋友圈” 分享自己的假期经历，能通过采访家人或朋友，整理假期故事并进行班级汇报，体现语言综合运用能力。 1.了解云南丽江的自然与文化景观（玉龙雪山、纳西古乐）。 2.培养 “享受当下” 的假期价值观，尊重多元度假方式。 What is it? The Hukou Waterfall on the Yellow River. Do you know what these place are? What do you know about them? What is it? The Nile. Can you talk about the differences between the Nile and the Yellow River? Do you know what these place are? What do you know about them? 教师可插入有关“尼罗河”的视频。 Yangtze River: the longest river in China Yellow River: the second longest river in China Nile River: the longest river in the world Discuss the questions: 1. What kind of natural wonder can you see in the video? It’s Hukou Waterfall (壶口瀑布) . 2. Do you know where it is? It is located on the border of Shanxi Province and Shaanxi Province in China, on the Yellow River. Read the conversation and underline the three rivers mentioned. 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? Ella:  Because it's yellow? 3a 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. 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 called the Yellow River our "mother river"! Ella:  We should protect them at all costs. 1. What waterfall do Yaming and Ella mention? 2. Why is the Yellow River called "yellow"? 3. Is Ella interested in rivers? The Hukou Waterfall. Because some parts of the river carry brown and yellow earth. Yes. 3a Read the conversation again and answer the questions. Great rivers 2.How many rivers are mentioned in the conversation? What are they? Three. They are the Yellow River, the Yangtze River, and the Nile River. 3.Does Ella know much about Chinese rivers at the beginning? How do you know? No, she doesn't. She thought the Yellow River might be the longest. 3a 1. What is the conversation mainly about? Read the conversation again and answer the questions. 3b What do Yaming and Ella know about these rivers? Read the conversation again and complete the table. River Country Length Importance Yellow River __________ __________ km helped in the development of ancient _____________ Nile River __________ __________ km Yangtze River __________ __________ km the _________ river in China China 5,464 Egypt 6,671 civilizations China 6,300 longest River Name Key Facts / Importance (with hints) Yellow River Known as China’s “______ river”; carries brown and yellow ______; the ______ longest in China. Yangtze River The ______ river in China; travels the _______ Nile River The longest river in ______; very important in ______’s history; helped develop________________ mother earth second longest farthest Africa Egypt ancient civilizations 3b What do Yaming and Ella know about these rivers? Read the conversation again and complete the table. Listen to the conversation. Then role-play it. Yangtze River Yellow River Nile River The longest river in China. It travels the farthest. The second longest river in China. The “Mother” river. The second longest river in China. The “Mother” river. Facts Protect them at all costs. We should not throw rubbish into rivers. We should save water in our daily life. We must stop polluting rivers with dirty water. We can also plant more trees to keep the soil and water clean. Actions “Mother River.” Helped in the development of ancient civilization. Meanings 3c 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 The largest desert Taklamakan Desert (塔克拉玛干沙漠) Imagine that you are Yaming or Ella. Continue the conversation with a partner about other geographical features in China. 3d Let’s protect water resources. Evaluation(评价) Complete content (内容完整) Correct language (语言准确) Clear voice (自信表达) Group discuss: Why are both rivers and the deep sea important? What can we do to protect them? Write 2-3 pieces of slogans: For examples: Don’t throw rubbish into rivers or the sea. Learn about water ecosystems and tell others. Support scientific research about water. Why should we protect the rivers at all costs? What can we do to protect them? Discuss Rivers provide water for us. They help ancient civilizations develop. Water pollution harms animals and people. Save water: Turn off the tap, take short showers. Stop pollution: Don’t throw rubbish into rivers. Plant trees: Keep the soil clean. Spread the message: Tell people to protect rivers. Language points Point 1 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。 (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? 1. 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？ (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。 (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。 Point 2 Both the Nile and the Yellow River helped ancient civilizations to develop. develop 作动词 1) 表示 “（社会、经济、国家等）发展；进步” e.g. China has developed rapidly in the past 40 years.（中国在过去 40 年里发展迅速。） 2) 表示 “培养（技能、习惯、兴趣等）” e.g. It’s important to develop good eating habits.（培养良好的饮食习惯很重要。） 3)表示 “（疾病、问题等）出现；发展” e.g. The problem developed into a serious crisis.（这个问题逐渐发展成了严重的危机。） development是develop的名词形式，意为“发展；进步；培养……”等 the development of ... ……的发展/培养 e.g. The development of technology has changed our daily lives. 科技的发展改变了我们的日常生活。 Language development in children starts at a very early age. 儿童的语言能力发展从很小的时候就开始了。 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。 in the development of... 在……的发展过程中 搭配 Computers play an important role in the development of modern science. 计算机在现代科学发展中起重要作用。 development 的相关词： develop v. 增强；发展 developed adj. 发达的 developing adj. 发展中的 development n. 发展；壮大 Point 3 Welcome back, Ella! How was your trip? —How was your weekend? 你周末过得怎么样？ —It was not bad. 不错。 — How was/were...? — It was good/ great/ fantastic./ Great!/ ... — It was not bad./Terrible./... ……怎么样？用来询问过去的情况 好的情况 一般或不好的情况 Point 4 No, the Yangtze River is the longest river in China. 主语+谓语动词（+the）+最高级（+名词）+in/of... ……在某一范围内或某类人或物中（是）最……（的……） 这是最高级的常用结构之一，副词最高级前的the可以省略。 This is the most interesting story of all. 这个是所有故事中最有趣的。 Eric works (the) hardest in Class 1. 在一班埃里克学习最努力。 Sam is the second tallest boy in his class. 萨姆是他班里第二高的男生。 Point 5 Both the Nile and the Yellow River helped ancient civilizations to develop. both... and... ……和……都；既……又…… 通常连接两个并列的成分。连接两个并列主语时，谓语动词用复数形式。 常见例句： Both Tom and Lily like reading books. They often help each other to solve problems. 汤姆和莉莉都喜欢读书。他们经常互相帮助解决问题 。 Both my brother and I are interested in deep-sea animals. 我和哥哥都对深海动物感兴趣。 Point 6 Because it’s yellow? 本句是由because引导的原因状语从句，用于说明前面事情（黄河名字由来）的原因 。句子结构为“because + 主语+ 谓语+ 宾语” 。回答 why引导的特殊疑问句，或在句中、句首说明原因 。 常见例句： Because it rains a lot, the ground is very wet. 因为雨下得很大，所以地面很湿 。 Point 7  Did you know it’s the longest river in the world? 本句为复合句，“Did you know...?” 是主句，是一般过去时的一般疑问句结构；“it’s the longest river in the world” 是宾语从句，作 know的宾语，要用陈述语序。 常见例句： Did you hear he will come to our school? 你听说他将来我们学校了吗？ 形容词最高级基本句型 一、the + 最高级 + 名词 + in + 地点 1.长江是中国最长的河流。 2.珠穆朗玛峰是世界上最高的山峰。 Mount Qomolangma is the highest mountain in the world. The Yangtze River is the longest river in China. Point 7 二、the + 序数词 + 最高级 1.黄河是中国第二长的河流。 2.长江是世界第三长的河流。 The Yangtze River is the third longest river in the world. The Yellow River is the second longest river in China. 三、What's the + 最高级 + 名词 + in + 地点？ 1.中国最长的河流是什么？ 2.中国最大的淡水湖是什么？ What's the largest freshwater lake in China? What's the longest river in China? 询问某范围内最……的是什么 四、How + 形容词 + 动词 + the + 最高级？ 询问最……的有多…… 1.中国最长的河流有多长？ 2.中国最大的沙漠有多大？ How big is the largest desert in China? How long is the longest river in China? Exercises 单项选择 一、单项选择 2.Sutong Bridge over the Yangtze River is about ________ long. A．eight thousand metres B．eight-thousand-metre C．eight-thousands-metres D．eight thousands metres 3.I like all the shirts in the shop, but I only took the ____ one to save money. A．cheaper B．more expensive C．cheapest D．most expensive 1.Mike lives ________ from school of all the students, and he always takes the subway to school. A．far B．farther C．the farther D．the farthest 二、用所给单词的适当形式填空。 1. The Yellow River is one of the ________ (long) rivers in China. 2. We should learn _______ (much) about the Nile River. 3. He ______ (travel) to many places and knows a lot about rivers. 4. Both the Nile and the Yellow River helped ancient ___________ (civilization) to develop. 5. ___________ (protect) rivers is our duty. longest more travels civilizations Protecting 6. The main purpose of his holiday to Greece was to go ________ (dive). 7. Our school library is the ________ (large) one in the district, with a lot of different kinds of books. 8. The ________(deep) of the swimming pool is two metres, so you need to be careful. diving largest depth 9. The Dead Sea is the ________ (low) place on earth. 10. The national park covers an area of 500 ________ (square) kilometers. 11. Mount Qomolangma is still growing _______ (tall). 12. Many deep-sea animals are __________ (color) and strange. lowest square taller colorful 三、根据句意及汉语提示完成句子。每空一词。 1. 亚马逊河是南美洲最长的河流。 The Amazon River is _____ _____ _____ in South America. 2. 顺便问一下，你知道多瑙河穿过多少个国家吗？ ____ _____ _____, do you know how many countries the Danube River flows through? 3. 我们应该竭尽全力保护地球上的每一条河流。 We should protect every river on Earth _____ _____ _____. 4. 长江和珠江都对中国的发展很重要。 _____ the Yangtze River _____ the Pearl River are important for China’s development. 5. 在这些交通工具中，飞机的航程最远。 Among these means of transport, the plane _____ _____ _____. the longest river By the way by all means Both and travels the farthest 本课句型 Summary 我都 学会了! Key words Expression river, waterfall, ancient civilizations, civilization ,means,development,desert travel the farthest,by the way,the second longest, both...and...,by all means,ancient civilization,the longest river,learn about,call sb./sth. ... The Yangtze River is the longest river in China. • It travels the farthest and is about 6,300 kilometres long. • We should protect them by all means. • —What’s the biggest desert in China? —It’s the Taklimakan Desert. Sentences Basic (必做) Write down the words, phrases and sentences in this lesson. Improving(选做) 2.Write a short essay entitled "A Great River — ____ (name of the river)", introducing the river. Extend (选做) 3.Choose a river that interests you and make a hand account in the form of hand-drawing plus text. Homework Thank you ! Lavf58.20.100 null 93180.055 91011.68 $