Unit 4 课时1 Section A（1a-2d）课件-八年级英语下册【趣味课堂】精品课件（新人教版）

Thank you for the wonderful talk, mr. Jones. Now, does anyone have any questions? I do. Why are so many countries researching the deep sea? Well, curiosity is one . reason we don't know enough . about the ocean floor. I remember that in twenty twenty, china's fender ja dived deeper into the mariana trench than many of the submersibles in the world and filmed IT. But I didn't see any deep sea animals. What are they like? Well, many deep sea animals are large and unusual. Some animals are blind. but they can see as well as others, some even create their own light. cool. Are there any other surprising facts about the deep sea? Did you know that there's rubbish, even at eleven thousand meters deep, that shocked many people? That's terrible. We should do something about IT. You're right. What is amazing about nature? 第1课时 (Section A 1a-2d) Unit 4 The Wonders of Nature 1 Lesson Objectives: In this lesson, we will be able to: 1. Master new words and phrases and use them to talk about natural wonders and the deep sea. 2. Complete listening tasks about world natural wonders and ocean depths, and extract key information like measurements and descriptions. 3. Practice listening for key words via picture-matching and gap- filling tasks, and create extended dialogues about natural wonders. 4. Share knowledge about amazing nature, express curiosity about the deep sea, and develop awareness of ocean protection. 2 目录 01 Lead in 02 Pre-listening 03 While-listening 04 Post-listening 05 Language points 06 Exercise&Homework 3 In this unit, you will： 1. talk about geography facts about natural wonders. 谈论有关自然奇观的地理事实。 2. compare facts about famous places. 比校有关著名景点的信息。 3. share geography facts using large numbers. 使用大数来分享地理事实。 4. explore how and why people connect with nature. 探究人们与大自然建立联系的方式及原因。 /'wʌndə(r)/ n.奇观/v.想知道 4 Look and share 1. Do you know the name of the waterfall in the photo? 2. What do you think is special about it? Yes, it's Victoria Falls(维多利亚瀑布). It's one of the largest waterfalls in the world, with a wide curtain(幕)of water. How do we connect with nature? Big Question 我们如何与大自然建立联系？ 5 Lead in 3. What other natural wonders do you know? Grand Canyon (USA) 美国大峡谷 It is the largest canyon in the world — about 446 kilometres long and up to 29 kilometres wide. Amazon Rainforest (South America) 亚马逊雨林 It is the largest tropical rainforest on earth, covering about 5.5 million square kilometres. 6 Lead in 3. What other natural wonders do you know? Great Barrier Reef (Australia) 澳大利亚大堡礁 It is the largest coral reef system in the world, stretching over 2,300 kilometres. Northern Lights (Aurora Borealis) 北极光 They are the most famous natural light show on earth, caused by solar wind. 7 Pre-listening Match the places with the pictures. 1a ___ Nile River ___ Angel Falls ___ Mount Qomolangma ___ Dead Sea ___ Sahara Desert ___ Mariana Trench /naɪl/ /'eɪndʒl/ /'tʃəʊməʊ,lɑːŋmə/ /sə'hɑːrə/ /,mæri'ænə/ /trentʃ/ F A D C E B 安赫尔瀑布 珠穆朗玛峰 死海 撒哈拉沙漠 马里亚纳海沟 尼罗河 What is amazing about these places? 8 Angel Falls 安赫尔瀑布位于委内瑞拉玻利瓦尔州圭亚那高原的卡罗尼河支流丘伦河上，是世界落差最大瀑布 。丘伦河水从平顶高原奥扬特普伊山直流而下而形成瀑布，分为两级，总落差979米，以离丘伦河谷地172米的分结晶岩平台为界，其上为长的一级，高达807米。 Mariana Trench 马里亚纳海沟全长2550千米，为弧形，平均宽70千米。据估计这条海沟已形成6000万年。其最深处的地方达6~11千米，是已知的海洋最深处。2020年11月10日8时12分，中国“奋斗者”号载人潜水器在马里亚纳海沟成功坐底，坐底深度10909米。 Dead Sea 死海是世界上最低的湖泊，也是地球上盐分居第三位的水体。截至2019年，死海表面积为605平方千米。 死海的湖岸是地球上已露出陆地的最低点，湖面海拔-430.5米。湖最深处380.29米，最深处湖床海拔-800.112米，有“世界的肚脐”之称。 Mount Qomolangma 珠穆朗玛峰简称珠峰，岩面高程8844.43米， 雪面高程8848.86米， 是喜马拉雅山脉中的主峰。由于亚欧板块和印度板块边缘的冲撞挤压，使喜马拉雅山地区猛烈抬升，据测算，平均每一万年大约升高20—30米，直至如今，喜马拉雅山区仍处在不断上升之中，每100年上升7厘米。 Sahara Desert 撒哈拉沙漠位于非洲大陆北部，是世界上最大的沙漠。它西起大西洋沿岸，向东经过埃及到达红海之滨，长5600千米，南北宽2000千米，总面积约932万平方千米，横跨北非诸多国家。其平均海拔300余米，主要由一条条平行排列的沙垄沙漠所组成。 Nile River 尼罗河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。全长6650千米，是世界上最长的河流，流域面积334.9万平方千米。 占据非洲大陆总面积超过1/9。河口区域年均流经的水量大约为810亿立方米。 Listen to the game show. Complete the descriptions of the places. 1b While-listening Place Description Mount Qomolangma the ________________ in the world Sahara Desert the ________________ in the world Dead Sea the ________________ on earth Mariana Trench the ________________ in the ocean TIPS 听主旨大意，重点 关注描述性最高级词汇 highest mountain biggest desert lowest place deepest point on earth 在地球上 15 Try to read the following numbers. 1c 英语数字的读法 英语中，数字从后往前数，每三位标一个逗号。例如： 9, 000, 000 million thousand 百位和十位中间加and 小数点读作point，小数点后的数字要单独读出。 416 8,848.86 11,000 9,000,000 four hundred and sixteen eight thousand eight hundred and forty-eight point eight six eleven thousand nine million 16 Listen again. Complete the measurements in 1b with the numbers below. 1c Place Description Measurement Mount Qomolangma the _________________ in the world ___________ metres high Sahara Desert the _________________ in the world about _____________ square kilometres in size Dead Sea the _________________ on earth _________ metres below sea level Mariana Trench the __________________ in the ocean about _________ metres deep 416 8,848.86 11,000 9,000,000 highest mountain TIPS 精听，边听边记录关键数据，用逗号三位一隔 biggest desert lowest place deepest point 8,848.86 9,000,000 416 11,000 平方千米 拓展：square metres 平方米 in size 在尺寸上；在大小方面 below sea level 低于海平面 17 Listen and check Highlight the key information. Host: Welcome to our game show! Today, it’s all about geography. Answer as quickly as you can! Question one: What is the highest mountain in the world? Fu Xing: It’s Mount Qomolangma! Host: Correct! How high is it? Liu Hongyu: I know this——it’s 8,848.43 metres high. Host: No, sorry. Fu Xing? Fu Xing: Is it 8,848.86 metres? Host: Yes! But some scientists say Qomolangma is still growing taller! Now, name the biggest desert in the world. Fu Xing: The Taklimakan Desert? 抓取关键信号词并锁定答案 警惕干扰项 18 Listen and check Highlight the key information. Host: Wrong! Ella? Ella: It’s the Sahara Desert. Host: Right! Now, how big is it? Ella: It’s about 9,000,000 square kilometres. Host: That’s right! What’s the lowest place on earth? Liu Hongyu: It’s the Dead Sea! Host: Well done! Its surface is 416 metres below sea level. Now where’s the deepest point in the ocean? Fu Xing: It’s in the Mariana Trench. Host: That’s correct! How deep is it? Fu Xing: It’s about 11,000 metres deep. Host: Correct! 锁定题干信息 长数据高效记录 避免数据遗漏，一些数据可能来自于主持人 1.警惕干扰选项 2.高效记录细节 3.抓住逻辑信号词 细节题听力技巧： 19 Talk about the places you have learnt about. 1d Post-listening A: What’s the lowest place on earth? B: It’s ... A: How low is it? B: Its surface is ... metres below sea level. A: Now, what’s ... Useful expressions 20 Talk about the places you have learnt about. 1d It’s the __________. What’s the lowest place on earth? How low is it? Its surface is 416 metres ________ sea level. Now, what’s the _________ mountain in the world? It’s Mount Qomolangma. How high is it? It’s 8,848.86 metres _______. Dead Sea below highest high 21 Language points 教材 P31 单元标题 1. The Wonders of Nature 自然奇观 wonder n.奇观；惊叹 / v. 琢磨；想知道(相当于want to know)；感到诧异 e.g. The Grand Canyon is one of the natural wonders of the world. 罗拉多大峡谷是世界自然奇观之一。 If you study physics, wonder why light travels faster than sound. 如果你学习物理，你会想知道为什么光比声音传播速度快。(2025湖北中考) 练习：1）Qomolangma is one of the most amazing natural __________ (wonder) in the world. 2）我们想知道里海有多深。 We _________ how deep the Caspian Sea is. wonders wonder 22 Language points 教材 P32 1b 2. _____ metres high 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 building is about 200 metres high. （改为同义句） → The building is about 200 metres ______ ________. in height 23 教材 P32 1b Language points 3. 416 metres below sea level 低于海平面416米 （1）【介词】在……下面 e.g. Please don’t stand below that bridge. 请不要站在那座桥下面。 （2）【介词】低于 e.g. It was three degrees below zero this morning. 今天早晨的温度是零下三度。 24 教材 P32 1b Language points 3. 416 metres below sea level 低于海平面416米 （3）【副词】在下面；低于 不强调垂直的“下面 e.g. From the top of the mountain, I could see the village below. 从山顶上我可以看到下面的村庄。 below 表示在某物的下方， 但不一定是在正下方， 反义词是above Write the answers below each question. 把答案写在每个问题的下面。 under 表示在某物的正下方，反义词是over The farmer is standing under the tree. 那个农民正站在树下。 辨析：below与under两者都表示“在……下面”。区别如下： 25 教材 P32 1b Language points 3. 416 metres below sea level 低于海平面416米 （1）【名词】高度 搭配：sea level 海平面 e.g. The mountain is over 3,000 metres above sea level. 这座山海拔3 000 多米。 （2）【名词】水平；程度 常与介词of连用。a high/low level 高/低水平 e.g. As long as we keep working, we will achieve higher levels. 只要我们继续努力，我们会达到更高的水平。(河北中考) 练习：The Dead Sea is the ________ (low) place on the Earth, sitting 430 meters ________ sea level. lowest below 26 教材 P32 1c Language points 4. B: Its surface is… metres below sea level. 它的表面低于海平面....米。 surface n. 表面；表层 当指“水面”或“液面”时，常用单数形式。 e.g. Nearly 10% of the earth’s surface is covered by ice. 地球表面将近10% 被冰覆盖。 拓展：on the surface 表面上；从外表看；乍一看 e.g. On the surface, it seems to be my fault. 表面上看，这似乎是我的过错。 练习：地震是地球表面的突然震动。 A(n) earthquake is a sudden shaking of the earth’s __________. surface 27 What do you know about the deep sea? 2a Pre-listening dark cold silent high pressure dangerous 28 While-listening Complete the sentences with the information from the picture. 2a 1. Fendouzhe reached ______________. 2. The deep sea begins at ______________. 3. The Titanic rests at ______________. 4. A whale can dive to ______________. /taɪ'tænɪk/ D A C B 29 A class is asking a deep-sea researcher some questions after his talk. Listen and tick the topics they discuss. 2b where the deep sea begins why people are researching the deep sea which Chinese submersible dived deeper in the water than many others what deep-sea animals are like how everyone should protect the deep sea /səb'mɜːsəbl/ n. 潜水艇 deep-sea adj. 深海的 信号词可以帮助快速定位 30 Read and predict. What can be filled in the blanks? 2c 1. People still don’t know much about the __________. 2. In __________, China’s Fendouzhe dived into the deep sea and filmed it. 3. Some animals have unusual abilities. Some are __________ but can “see”. Some can even create their own __________. 4. There is rubbish even at __________ metres deep. dive into 潜入 特殊能力 深海相关的名词(短语) 年份/地点 表感官缺陷的形容词 视觉相关的名词(短语) 具体的数据 31 Listen again. Complete the sentences with the facts from the conversation. 2c 1. People still don’t know much about the ____________. 2. In __________, China’s Fendouzhe dived into the deep sea and filmed it. 3. Some animals have unusual abilities. Some are __________ but can “see”. Some can even create their own __________. 4. There is rubbish even at __________ metres deep. ocean floor 2020 blind light 11,000 Tip:单词（短语）/数字过长时可先简写速记，后续补充完整 32 Listening tasks Listen and fill. Then follow and check. Ms Gao: Thank you for the wonderful talk, Mr Jones. Now, does anyone have any questions? Emma: I do! Why are so many countries ____________ the deep sea? Mr Jones:Well, curiosity is one reason. We don’t know enough about the ocean floor. Fu Xing: I remember that in 2020, China’s Fendouzhe _______ deeper ______ the Mariana Trench than many other submersibles in the world and filmed it. But I didn’t see any deep-sea animals. What are they like? Mr Jones: Well, many deep-sea animals are large and _________. Some animals are blind, but they can “see” as well as others. Some even create their own light! Peter: Cool! Are there any other surprising facts about the deep sea? Mr Jones: Did you know that there’s rubbish even at 11,000 metres deep? That _________ many people. Ms Gao: That’s terrible! We should do something about it. Mr Jones: You’re right! researching dived into unusual shocked 33 Read the questions and think of more you would like to ask the deep-sea researcher. 2d What is the largest shark in the deep sea? What is the bottom of the deep sea like? Why is it important to research the deep sea? the bottom of... ......的底部 34 Read the questions and think of more you would like to ask the deep-sea researcher. 2d What is the largest shark in the deep sea? It’s the whale shark. What is the bottom of the deep sea like? It’s dark, freezing, and has high pressure. There are also many unique creatures. 35 Read the questions and think of more you would like to ask the deep-sea researcher. 2d Why is it important to research the deep sea? Because the deep sea has unique species for research, holds important resources, and can help control our climate. 36 Then ask and answer the questions with a partner. 2d The temperature in most deep-sea areas is about -1℃-4℃, and gradually decreases with increasing depth. What is the temperature in the deep sea? What can we do to protect the deep sea in daily life? We can reduce plastic use, save water, support sustainable seafood, and spread awareness of ocean protection. 37 Language points 教材 P33 2a 5. OCEAN DEPTHS depth n.深（度）；纵深 形容词形式：deep 深的；有……深的 e.g. We found water at a depth of 20 metres. 我们在20 米深处找到了水。 拓展：询问某物的深度时，常用句型“What’s one’s depth?” 或“What’s the depth of...?”，相当于“How deep is/are...?”。 e.g. What’s the depth of the lake here? = ______ _______ is the lake here? 这儿的湖水有多深？ How deep 38 Language points 教材 P33 2a 6. A whale can dive to over 2,000 metres. 鲸鱼可以下潜至2000多米。 dive v./n. 潜水；跳水；俯冲 过去式：dived/dove, 过去分词：dived （1）【动词】潜水；跳水；俯冲 dive down 潜入; 俯冲 dive into 跳入 e.g. The whale dove to deeper water. 那头鲸潜入了更深的水城。 The falcon dived down and caught the little bird. 猎鹰俯冲下来抓住了那只小鸟 The man dived into the river to save the drowning child. 那个男人跳入河中去救溺水的小孩。 （2）【名词】潜水；跳水；俯冲 e.g. He made a beautifual dive. 他做了个漂亮的跳水动作。 练习：She dived ________ a swimming pool and swam for a whole day. into 39 Language points 教材 P33 2c 7. Some animals have unusual abilities. 有些动物拥有非凡的能力。 unusual adj. 特别的；不寻常的 由“un-（否定前缀）+ usual (adj.通常的）”构成。 unusual的发音以元音音素开头，其前有不定冠词时，用an。 e.g. Tan Dun is an unusual man with great musical talent. 谭盾是一个与众不同的人，他有着非凡的音乐天赋。(南通中考改编) It's unusual for the trees to flower so early. 这种树这么早开花很少见。 拓展： usual adj. 通常的；寻常的 （反义词）unusual adj. 特别的；不寻常的；罕见的 usually adv. 通常地；一般地 unusually adv. 不寻常地 40 Language points 教材 P33 2d 8. What is the bottom of the deep sea like? 深海底部是什么样子的？ bottom n.底部；最下部 反义词：top 顶部；顶端 (at) the bottom of（在）……的底部 from top to bottom 从上到下；彻底地 from the bottom of one's heart 由衷地，从心底里 e.g. What is there at the bottom of the deep sea? 深海底部有什么？ They cleaned the house from top to bottom before the Spring Festival. 春节前，他们把房子彻底打扫了一遍。 练习：我在河底发现了一些奇怪的东西。 I found something strange ___________________ the river. at the bottom of 41 Exercises 1. The diver went b_________ the boat to check the ropes under the water. 2. The tables' s_________ were very clean. 3. The water l_________ in the pool rose after the heavy rain. 4. Sally ___________ /rɪ'sɜːtʃ/ many books before she wrote her report. 5. They found a strange stone at the _________ /'bɒtəm/ of the lake. I. 请根据所给的首字母或音标写出单词。 elow urfaces evel researched bottom 42 Exercises II. 用括号中所给单词的适当形式填空。 1. The __________ (deep) of the lake is hard to measure. 2. It is __________ (usual) to see snow in China in the summer. 3. This hill is the __________ (low) one in our neighbourhood. It is only 1 metre high. 4. Children have many different __________ (ability ) to learn new things. 5. The coach ____________ (dive) into the pool to show us how to do it correctly yesterday. depth unusual lowest abilities dived/dove 43 Exercises III. 根据汉语提示完成句子（每空一词）。 1. 在地球上，笑容是最美的语言。 A smile is the most beautiful language ________ ________. 2. 桂林的漓江是中国著名的自然奇观之一。 The Li River in Guilin is one of the famous __________ __________ in China. 3. 昨天他们在城市附近的海中看到一艘大型的中国船只。 They saw a large __________ ________ in the sea near the city yesterday. 4. 这个小岛只有五平方千米。 The small island is only five __________ ___________. on earth natural wonders Chinese vessel square kilometers 44 Summary We learn: 1. Vocabulary: wonder, desert, measurement, square kilometre, below, level, sea level, surface, depth, dive, submersible, unusual, bottom... 2. Sentence Patterns: "What's the ... in the world? / It's ... / It's ... metres high/deep/below sea level." 3. Listening Skill: Extract key information (descriptions, measurements) from listening materials about natural wonders. We can: talk about amazing natural wonders and the deep sea with new words and phrases, and express ideas about ocean protection. 45 Homework 1. 基础层：背诵今天学的12个生词+短语；背诵1d的2组对话。 2. 提高层：用所学句型写5句话，比较两个自然奇观（如珠峰 vs 马里亚纳海沟）,要包含测量数据。 3. 拓展层：设计一张海报：“Save the Deep Sea”（拯救深海）。 要求包含3个事实和1句口号，至少使用5个本节课的生词。 46 THANKS 47 $Welcome to our game show. Today is all about geography. Answer as quickly as you can. Question one, what is the highest . mountain in the world? It's mt. A correct. How high is IT? I know . this is eight thousand eight hundred and forty eight point four three meters high. No, sorry. Fishing is IT eight . thousand eight hundred and forty eight point eight six meters. yes. But some scientists say ka lama is still growing taller. Now name the biggest desert in the world. the tackle mark . and desert wrong. Ella. it's the sahara . desert right now. How big is IT? It's about nine million square kilometers. That's right. What's the lowest place on earth? It's the dead sea. Well done. Its surface is four hundred sixteen meters below sea level. Now where's the deepest point in the ocean? It's in the mariana trench. That's correct. How deep is IT? It's about . eleven thousand meters deep. correct?