Unit 4 Section A（2a-2d）（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）

该初中英语课件围绕“深海探索”主题，涵盖submersible、depth等核心词汇及“research用法”“at + 数字 + metres deep”等句型，通过“奋斗者号”“泰坦尼克号”情境导入，以图片匹配、听力理解、对话补全等学习支架，帮助学生从词汇积累过渡到综合语言运用。 其亮点在于融合文化意识与思维品质，以中国“奋斗者号”科技成就激发民族自信，通过小组讨论“深海保护措施”培养逻辑分析能力。听力材料结合真实对话场景，语法讲解联系实例，既提升学生语言能力与跨文化意识，又为教师提供情境化、任务驱动的教学资源。

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 掌握深海相关词汇及核心句型，能完成听力任务、进行简单对话。 掌握图表标注、听力抓关键词等策略，提升合作学习与语言表达能力。 通过分类归纳、逻辑分析，提升信息梳理与辩证表达能力。 感受海洋壮美与神秘，培养敬畏自然、保护海洋的意识，增强中国深海探索成就带来的民族自豪感。思维品质： What do you know about the deep sea? Let’s follow Fenfouzhe to explore. 40 m 200 m 500 m 3700 m 6000 m 10909 m submersible [səbˈmɜːsəbl] Fendouzhe （奋斗者号） What do you know about the deep sea? Complete the sentences with the information from the picture. 1. Fendouzhe reached ______. 2. The deep sea begins at ___. 3. The Titanic rests at ______. 4. A whale can dive to ______. 2a D A C B Fendouzhe （奋斗者号） Fendouzhe is a super advanced deep-sea submersible(潜水器) made by China. It can carry scientists down to the deepest parts of the ocean, like the Mariana Trench. In 2020, it successfully reached the bottom of the trench, over 10,000 meters deep! It helps us explore the mysterious deep sea, discover new creatures, and learn more about our planet. /səbˈmɜːrsəbl/ Titanic （泰坦尼克号） The Titanic was a famous British passenger ship built over 100 years ago. It was once called "unsinkable" because it was very large and had many safety features for its time. In April 1912, it set off on its first trip from the UK to the US, carrying more than 2,200 people. Sadly, it hit a big iceberg in the Atlantic Ocean and sank quickly. A class is asking a deep-sea researcher some questions after his talk. Listen and tick the topics they discuss. Who are talking in the conversation? What happened before the conversation? Students and a deep-sea researcher. The deep-sea researcher gave a talk to students. 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 Listen and tick the topics they discuss. 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 Ms Gao: Thank you for the wonderful talk, Mr Jones. Now, does anyone have any questions? Emma: I do! Why are so many countries ______________________? Mr Jones: Well, ________ is one reason. We don't know enough about the ocean floor. Fu Xing: I remember that in 2020, China's Fendouzhe _______________ 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 ________________. Some animals are blind, but they can "see" as well as others. Some even __________________! 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! Listen again and fill in the blanks. researching the deep sea curiosity dived deeper into large and unusual create their own light shocked What kind of learners are Emma, Fu Xing and Peter? Student What they do What we can learn Emma Fu Xing Peter Asks about reasons Be curious about why Shares what he knows, then asks for more Connect old and new knowledge Asks for more surprising facts Always want to go deeper Ms Gao: Thank you for the wonderful talk, Mr Jones. Now, does anyone have any questions? Emma: I do! Why are so many countries researching 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 dived deeper into 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 unusual. Some animals are blind, but they can "see" as well as others. Some even create their own light! Thank you for + 名词 / 动名词（因…… 感谢你） know enough about...（对…… 了解足够多） dived deeper into... than...： “比……更深地潜入……” 我记得，2020 年中国的 “奋斗者号” 深潜器比世界上其他许多潜水器都更深地潜入了马里亚纳海沟，并对其进行了拍摄。 as well as 和…… 一样好 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 shocked many people. Ms Gao: That's terrible! We should do something about it. Mr Jones: You're right! Did you know that + 宾语从句，从句用陈述语序 深度表达：at + 数字 + metres deep （在…… 米深的地方） Read the questions and think of more you would like to ask the deep-sea researcher. Research the answers. Then ask and answer the questions with a partner. 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? What is the largest shark in the deep sea? What is the bottom of the deep sea like? The Greenland shark. It can grow very long. Why is it important to research the deep sea? It's dark, cold and has high pressure. There are flat areas, hydrothermal vents, seamounts and trenches. It has unique species for science / medicine, helps regulate climate, has resources and helps us learn the history of earth. • Curiosity: It is the largest part on earth, and we still don’t know much about it. • Amazing Life: It is home to unusual animals. • Protection: Human activities affect everywhere. We should do something about it and protect our home. • … .... Why is it important to research the deep sea? The deep sea is important for Earth and humans in many ways. Climate Regulation: The deep ocean absorbs and stores large amounts of heat and carbon dioxide, helping to regulate the Earth's climate. Source of Resources: It has valuable resources like rare metals, natural gas, and even new medicines. Biodiversity: The deep sea is home to millions of unique species. ... Work in groups. Is the deep sea very cold and dark? Are there any large strange animals in the deep sea? Is it dangerous for humans to dive into the deep sea? How do deep-sea animals survive without sunlight? How does rubbish harm deep-sea animals? What do deep-sea animals eat in the dark? What can students do to protect the deep sea? We should / can : stop throwing rubbish into the ocean. pick up trash when we visit the beach. reduce the use of plastic because plastic is harmful to sea life. learn about the deep sea and tell others to protect it. Language points Point 1 Why are so many countries researching the deep sea? research此处作是动词，意为是“研究；调查” ，其后直接接研究的对象 e.g. He is researching the effects of plastic pollution on deep-sea life.（他正在研究塑料污染对深海生物的影响。） research还可作不可数名词，意为 “研究；调查” e.g. She spends most of her time doing research on deep-sea creatures. （她大部分时间都在做关于深海生物的研究。） Point 2 What is the bottom of the deep sea like? 〔名词〕底部；最下部 对应词：top 顶部；顶端常和介词“at” “on” “in”等搭配。 (at) the bottom of（在）……的底部 from top to bottom 从上到下；彻底地 搭配 【拓展】bottom还可作形容词，意为“底部的；最后的”。 Please put it in the bottom drawer. 请把它放在最下面的抽屉里。 There are some rocks at the bottom of the sea. 在海底有一些岩石。 Look at the words on the bottom of the page. 看这页底部的单词。 Our house is at the bottom of the hill. 我们的房子在山脚下。 2. What is the bottom of the deep sea like? 深海底部是什么样子的？bottom作名词，意为“底部；最下面”。常和介词“at” “on” “in”等搭配。 There are some rocks at the bottom of the sea. 在海底有一些岩石。 Look at the words on the bottom of the page. 看这页底部的单词。 Our house is at the bottom of the hill. 我们的房子在山脚下。 【拓展】bottom还可作形容词，意为“底部的；最后的”。 Please put it in the bottom drawer. 请把它放在最下面的抽屉里。 Point 3 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...?”。 〔名词〕深（度）；纵深 OCEAN DEPTHS We found water at a depth of 20 metres. 我们在20 米深处找到了水。 形容词形式：deep 深的；有……深的 拓展 What’s the depth of the lake here? =How deep is the lake here? 这儿的湖水有多深？ Point 4 A whale can dive to _____. （1）〔动词〕潜水；跳水；俯冲 I dived below the surface of the water. 我潜入了水中。 He likes diving into the swimming pool on hot days. 在炎热的天气里，他喜欢跳进泳池。 （2）〔名词〕潜水；跳水；俯冲 The diver made a dive to a depth of 18 metres. 那名潜水者潜到了18 米水深处。 Point 5 Some animals have unusual abilities … 〔形容词〕特别的；不寻常的；罕见的 The coach has an unusual name. 这个教练有个特别的名字。 It’s unusual to see a rainbow in the desert. 在沙漠里看到彩虹是很罕见的。 unusual adj. 特别的；不寻常的 反义词：usual adj.平常的 unusual由 un-(表示否定)和 usual 构成，意为 “不寻常的；特别的” 【拓展】unusually adv. 不寻常地 usually adv. 通常 常用句型：It’s unusual to do sth. 去做......是不寻常的。 26 Exercises 单项选择 1. The scientists will ______ (潜水) into the deep sea to study the unusual creatures. 2. We still don't know the exact ______ (深度) of some parts of the ocean. 3. The ________ (deep) part of the ocean is about 11,000 metres. 4. Some deep-sea animals look _________ (usual) and even scary. 5. The _______ (bottom) of the sea is dark and quiet. dive depth deepest unusual bottom 一、根据括号内提示拼写单词 二、选词填空。 1. A special Chinese __________ called Fendouzhe dived very deep. 2. Many people are very interested in animals with ________ colours and shapes. 3. Many ________ animals cannot see; they are ________. 4. Some animals can create their own ________ in the dark. 5. It is sad to find ________ even on the deep ___________. submersible unusual deep-sea blind light deep-sea submersible unusual blind light rubbish ocean floor rubbish ocean floor 三、用括号内所给词的适当形式填空 1. Let's talk about the natural __________(wonder) in class. 2. He often ________ (share) his stories about traveling with us. 3. The _____________ (measure) of the box is 20 centimetres long. 4. This is one of the ________ (deep) lakes in our country. wonders shares measurement deepest 5. Today is an __________ (usual) day for Jack. It’s his twentieth birthday. 6. We need to do some _________ (research) to find out the answer. 7. The Great Wall is one of the __________ (wonder) of the world. 8. Holding his breath for about three minutes, Jerald swam down to a __________ (deep) of 112 metres. unusual research wonders depth 30 四、根据要求完成句子。 1. 很多国家正在研究深海。 Many countries are _________ ______ ______ ______. 2. 有些深海动物是盲的，但它们能和其他动物一样 “看见”。 Some deep-sea animals are blind, but they can “see” ______ ______ ______ others. 3. 奋斗者号在 2020 年潜入了马里亚纳海沟。 Fendouzhe ______ ______ the Mariana Trench in 2020. 4. 甚至在 11000 米深的地方都有垃圾。 There is rubbish even at ______ ______ ______. researching the deep sea as well as dived into 11,000 metres deep 5. 我们应该为保护深海做些事情。 We should _____ ________ ______ ______ the deep sea. 6. 这个公园真的是个自然奇观。 The park is really a ________ ________. 7. 这条河大约5米深。 This river is about ________ ________ ________. 8. 科学家在湖的底部发现了一些奇怪的生物。 The scientists found some strange living things ________ ________ ________ ________ the lake. natural wonder five metres deep at the bottom of do something to protect 本课句型 Summary 我都 学会了! Key words Expression fantastic, town, breath, especially, steamed chicken soup... stay in the old town ，take sb's breath away ，take a lot of photos，steamed chicken soup ，stay at home， have a wonderful experience ，nothing but ，stay in the hotel Where did you go? I went to... Did you try...? Yes, I did. Sentences Basic (必做) Write down the words, phrases and sentences in this lesson. Improving(选做) 2.Write an English short essay from the perspective of "the significance of natural wonders of the world to humanity". Extend (选做) 3.Create a creative poster: one half is written in English to introduce the wonder, and the other half is a hand-drawn sketch. Homework Thank you ! 85081.305 80927.43 null 80979.68 null 77269.93 $