Unit 4 课时2 Section A（3a-3d）课件-八年级英语下册【趣味课堂】精品课件（新人教版）

第2课时 (Section A 3a-3d) Unit 4 The Wonders of Nature What is amazing about nature? 1 Lesson Objectives: In this lesson, we will be able to: 1. Master new words and phrases: waterfall, civilization, at all costs, development, and review related river knowledge. 2. Understand a conversation about world-famous rivers and extract key details (length, importance, etc.). 3. Role-play the dialogue and create new conversations about Chinese geographical features with target expressions. 4. Develop awareness of protecting rivers and cultural heritage, and learn to introduce geographical features clearly. 2 目录 01 Lead in 02 Pre-speaking 03 While-speaking 04 Post-speaking 05 Language points 06 Exercise&Homework 3 Lead in 4 Lead in Look and say What do you see in the video? Is it a lake or a waterfall? A waterfall. Do you know which river this waterfall is on? The Yellow River. 5 Pre-speaking Look and predict What do you know about the Yellow River? Is the Yellow River the longest river in China? Why is it called the Yellow River? What makes it yellow? This river is called our 'mother river'. Why? 6 Read the conversation and underline the three rivers mentioned. 3a While-speaking The Yellow River, the Yangtze River, the Nile 7 Read the conversation. 3a Find the key words and phrases. 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? Yaming: Right. Some parts of the river carry brown and yellow earth. 长江还可写为：The Changjiang River by the way 顺便提一下 8 Read the conversation. 3a Find the key words and phrases. 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 6,67l 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 call the Yellow River our “mother river”! Ella: We should protect them at all costs. learn about 了解 ancient civilization 古代文明 mother river 母亲河 at all costs 不惜任何代价 both...and... “....和.....(两者)都”， 当连接主语时，谓语动词用复数形式 9 Read again and answer the questions. 1. Where did Ella go on her trip? 2. Is the Yellow River the longest river in China? 3. Why is the Yellow River called “yellow”? She visited the Hukou Waterfall on the Yellow River. No, the Yangtze River is. Because some parts carry brown and yellow earth. 10 Read again and answer the questions. 4. Which river is Ella’s favourite? 5. What do the Nile and the Yellow River have in common? The Nile. They helped ancient civilizations develop and are still very important today. 11 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 Yangtze River __________ __________ km the _________ river in China China 5,464 Egypt 6,671 civilizations China 6,300 longest the development of .....的发展 12 Listen to the conversation. Then role-play it. 3c 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? 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 6,67l 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 call the Yellow River our “mother river”! Ella: We should protect them at all costs. 13 Watch and follow 14 Group work Role-play the conversation. Actor 1: Yaming Actor 2: Ella Actors should: ✭✭✭Use correct language. (使用正确语言) ✭✭Speak loudly and clearly with feelings. (言语饱含热情，大声且清晰) ✭✭Correct tones and proper body language. （正确语调和恰当的身体语言） ✭✭✭Without books.(脱离课本) 15 Think and share What else do you know about the three rivers? 16 发源于青海省西南部、青藏高原上的唐古拉山脉主峰各拉丹冬雪山，曲折东流，干流先后流经11个省、自治区和直辖市，最后注入东海。 地理位置 是中国、亚洲第一大河，全球第三长河流。素有中国“黄金水道”之称，通航里程达2800多千米。 重要性 Yangtze River 发源于青藏高原巴颜喀拉山北麓的约古宗列盆地，自西向东流经9个省（自治区），最后在东营市垦利区流入渤海。 地理位置 黄河是中华文明最主要的发源地，中国人称其为中华民族的“母亲河”。每年都会携带十六亿吨泥沙，其中有十二亿吨流入大海，剩下四亿吨长年留在黄河下游，形成冲积平原，有利于种植。 重要性 Yellow River 是一条流经非洲东部与北部的河流，与中非地区的刚果河以及西非地区的尼日尔河并列非洲最大的三个河流系统。有两条主要的支流，白尼罗河和青尼罗河。于喀土穆交汇，为尼罗河的干流。穿越11国，最终汇入地中海。 地理位置 是世界文明发祥地之一，这一地区的人民创造了灿烂的文化，在科学发展的历史长河中做出了杰出的贡献。 重要性 Nile River 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...? 20 Pair work Sure! What would you like to know? Could you tell me more about China, Yaming? What’s the biggest desert in China? It’s the Taklimakan Desert. Do you know how big it is? Yes, it has a total area of about 330, 000 square kilometres. 21 Language points 教材 P34 3a 1. No, the Yangtze River is the longest river in China. 不，长江是中国最长的河流。 句型结构：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。 e.g. 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。 练习：Taiwan lies in the southeast of China and it is ________ island in our country. It is an inseparable (不可分离的) part of China. A. the largest B. larger C. large D. the larger A 22 Language points 教材 P34 3a 2. It travels the farthest and is about 6,300 kilometres long. 它流经的距离最远，约有6300千米长。 6,300 kilometres long “6300千米长”, 是“基数词＋单位词＋形容词”结构。 (当基数词大于1时，单位词要用复数形式) 物体长、宽、高、深等的表达法 基数词+单位词+形容词 （long、wide、high、deep等） 基数词+单位词+in+名词 （length、width、height、depth等） 练习：The river is 20 metres wide ( = 20 metres __________ )． 这条河宽20米。 The desks in our classroom are 1.5 metres long ( = 1.5 metres __________ )． 我们教室的桌子长1.5米。 in width in length 23 Language points 教材 P34 3a 3. The Yellow River is 5,464 kilometres long and is the second longest. 黄河全长5464公里，是中国的第二长河。 句型结构：主语+be动词+the+序数词+形容词最高级（+名词+in/of...） ……是（某一范围内或某类人或物中）第……（的……） e.g. Sam is the second tallest boy in his class. 萨姆是他班里第二高的男生。 练习：—The Yangtze River is the ________ longest river in the world. —Yes, only after the Nile River and the Amazon River. A. three B. third C. four D. fourth B 24 Language points 教材 P34 3b 4. helped in the development of ancient civilization 有助于古代文明的发展 development n.发展；壮大 【不可数名词】由“develop (v.发展）+ -ment （名词后缀）”构成。 in the development of... 在……的发展过程中 (with) the development of（随着）······的发展 e.g. We believe China will continue to lead the world in technology development. 我们相信，中国在科技发展方面将继续引领世界。 （2025山西中考） 拓展：develop v. 发展；壮大 → development n. 发展；壮大 → developed adj. 发达的→ developing adj. 发展中的 练习： （2025德阳中考改编）With the _____________ (develop) of science and technology, robots using AI are getting more attention. development 25 Language points 教材 P34 3d 5. What's the biggest desert in China? 中国最大的沙漠是什么？ desert /'dezət/ n.沙漠；荒原 (对比：dessert 作名词，意为“（饭后的）甜点，甜食”。) e.g. The Silk Road became a busy highway for traders who carried things across deserts and mountains. 丝绸之路成为商人们穿越沙漠与山脉来 运送货物的繁忙通道。（2025湖北中考） 拓展：【动词】抛弃，离弃 此时发音为/dɪ'zɜ:t/。 e.g. The price rise caused many readers to desert the magazine. 价格上涨导致许多读者放弃了这本杂志。 The birds have deserted their nest. 这些鸟舍弃了它们的窝。 练习：撒哈拉沙漠面积约900万平方公里。 The Sahara _________ is about 9,000,000 square kilometres in size. Desert 26 Exercises 1. Of all the students, Lily lives the __________ (far) from the school. 2. This river is __________ (deep) than that one, so you should be more careful. 3. The teacher explained many different __________ (part) of the plant clearly to the students. 4. Our school is ____________ (develop) a new programme to help students with reading. 5. We would like __________ (visit) places with beautiful mountains and rivers. I. 用括号中所给单词的适当形式填空。 farthest deeper parts developing to visit 27 Exercises 1. We saw several __________ during our trip to the mountains. They fell from very high places. 2. There were two ancient _____________ near the big river. They were well developed and organized. 3. This river runs through three countries and is the __________ one of all. 4. It is one of the commonest __________ of transport. 5. We need to study hard. More _____________, we need to stay heathy and happy. II. 用方框中所给单词的适当形式填空。 means long waterfall important civilization waterfalls civilizations longest means importantly 28 Exercises III. 根据汉语提示完成句子（每空一词）。 1. 你去上海的旅行怎么样，你去了什么地方？ _______ was your trip _______ Shanghai, and where did you go? 2. 顺便问一句，你有没有拍很多照片来纪念你的旅行？ _____ _____ ______, did you take many photos to remember your trip? 3. 这个公园以水闻名，所以被命名为水上公园。 The park is famous for its water, so it _______ _______ Water Park. 4. 他和他的姐姐都对古代建筑很感兴趣。 _______ he _______ his sister _______ interested in ancient buildings. 5. 我想通过阅读和旅行了解不同的中国文化。 I want _______ _______ _______ different Chinese cultures by reading and travelling. How to By the way is called/ is named Both and are to learn about /to know about 29 Summary We learn: 1. Vocabulary: waterfall, civilization, at all costs, development, and related geographical words. 2. Sentence Patterns: "Is ... the longest ... in ...?"; "It's ... kilometres long."; "We should protect ... at all costs." 3. Knowledge: The basic information of the Yellow River, Yangtze River and Nile, and Chinese geographical features. We can: 1. Understand a conversation about rivers and extract key details. 2. Role-play the dialogue and create new conversations about geographical features. 3. Express ideas about river protection with target words and phrases. 30 Homework 1. 基础层：跟读并背诵3a对话，默写4个生词+短语。 2. 提高层：完成3d对话续写，录制1分钟角色扮演视频，发送 到班级群。 3. 拓展层：以 Protect Our Mother Rivers 为题，写一篇80词左右 的英语短文，融入本节课所有生词。 31 THANKS 32 Lavf58.46.101 Lavf58.46.101 $Welcome back, ella. How was your trip? IT was great. We saw the hooker waterfall on the yellow river. Is that the longest river in china? No, the yancy river is the longest river in china. IT travels the farthest and is about six thousand and three hundred kilometers long. The yellow river is five thousand, four hundred and sixty four kilometers long and is the second longest. By the way, do you know why it's called the yellow river? Because it's yellow. right? Some parts of the river Carry Brown and yellow earth. That's interesting. I like learning about rivers. My favourite is denial. Did you know it's the longest river in the world? Yes, it's six thousand, six hundred and seventy one kilometers long. It's very important in egyptian history. That's right. Both the nail and the yellow river helped ancient civilizations to develop, and they're still very important today. Yes, in china, we even call the yellow river our mother river. We should protect them at all costs.