Unit 4 Section B（3a-3c）（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 B 3a-3c Unit 4 The Wonders of Nature Learning Aims 语言能力 文化意识 思维品质 学习能力 掌握描述自然奇观的核心词汇、句型及形容词最高级用法，能读懂3a短文、完成信息匹配，初步进行简单书面表达。 学会自主阅读、合作探究，掌握略读、查读等阅读技巧，养成主动积累词汇、乐于运用英语交流自然话题的习惯。 通过分析短文结构、提炼关键信息，培养逻辑思维和归纳总结能力，能结合语境推理词义、表达个人观点 了解中外著名自然奇观，感受自然之美，尊重不同地域自然文化，树立保护自然的意识。 What do you know about the Great Barrier Reef? The Great Barrier Reef. 大堡礁 大堡礁位于南半球，是全球最大、最长的珊瑚礁群。它横贯澳大利亚东北沿海的昆士兰州，北起托雷斯海峡，南至南回归线以南，总长度为2011公里，最宽处为161公里，共有2900个大小珊瑚礁岛。大堡礁是一个由无数个珊瑚虫的骨骼组成的海底生物群落。大堡礁拥有丰富的海洋生物资源，包括各种鱼类、海龟、海豚、海鸟等，是一个非常吸引人的海洋生物栖息地。 1.What is the type of this passage? A. A report B. An advertisement C. A science fiction story 2.What is the purpose of an advertisement like this? To attract readers' interest, provide key information, and encourage them to visit. B 1.What can you see in the pictures? We can see a man diving underwater. We can see lots of colourful fish. We can see the coral reef. Let’s discuss: /ˌʌndəˈwɔːtə(r)/ 在水下 /ˈkɒrəl/ /riːf/ 珊瑚礁 2.Where can we see the coral reef? On the northeastern coast of Australia. 3.What is the main idea of the passage? It’s about the Great Barrier Reef. It’s an amazing underwater world. /ˌnɔːθˈiːstən/ /kəʊst/ 东北海岸 Let’s discuss: 4. How large is the Great Barrier Reef? 5. What can you do in the Great Barrier Reef? It takes up an area of 345,000 square kilometres. We can swim or dive in the clear water. 6. What can you see in the Great Barrier Reef? We can see coral, plants, colourful fish, large fish, turtles and sharks. Read notes on Qinghai Lake. Rewrite them in full sentences. Qinghai Lake What: a salt lake Where: Qinghai Province, China Special fact: the largest lake in China (4,340 km2) Things to do: photograph wildlife (fish and birds), visit islands, ride a bike or horse 1. Qinghai Lake is a _____________in ________________________. 2. Qinghai Lake is_____________________in China. 3. It is ______________________________in size. 4. If you visit Qinghai Lake, you can _______________________________ _________________________. salt lake Qinghai Province, China the largest lake 4,340 square kilometres photograph wildlife, visit islands, ride a bike or horse 3b Read the text again and fill in the key information. What Where Special fact Things to do on the northeastern coast of Australia the Great Barrier Reef 1. the biggest coral reef →an area of 345,000 km2 2. alive→the largest living structure on earth 1. swim or dive in the clear water 2. see coral, plants, and colourful fish; dive deeper→even see large fish, turtles & sharks Part 1 Hook 用问句吸引读者，引出主题 Details 介绍位置、规模、基本特色 Experience 描述旅游活动与独特景观 Call to action 用感叹句强化吸引力，鼓励前往 Part 2 Part 3 Part 4 Title Write an advertisement for Qinghai Lake . Try to make your advertisement as persuasive as possible. 3c WHERE WHAT Special fact fun things to do 写作指导 为青海湖或另一自然奇观撰写广告，描述其特色并说明游览理由，力求有说服力。 一般现在时 1. 清晰描述自然奇观的核心特征（如青海湖的盐湖属性、规模、景观等）。 2. 阐述游览价值（如独特体验、生态意义、视觉享受等）。 3. 运用生动的形容词、副词和关键数字增强说服力，结尾呼吁读者前来游览。 以第二人称（吸引读者） 和第三人称为主 审主题 审时态 审人称 审要点 Writing travel advertisement Beginning Body (key information) Ending 用问句吸引读者，引出主题 Do you love...? Do you want to visit...? 位置：Located in/on/at... northeastern 规模：It takes up an area of 345,000 square kilometres. 特色：biggest, largest, longest... 体验：If you visit... you can do/see colourful... 用感叹句强化吸引力，号召前往 For people who love ..., visiting ... is the dream of a lifetime! Write an advertisement for Qinghai Lake. Example: Qinghai Lake: An Amazing Highland Wonder Do you love quiet lakes and amazing wildlife? Then visit Qinghai Lake! Located in Qinghai Province, the northwestern of China, the Qinghai Lake is one of the most amazing places to visit. It is the largest salt lake in China, covering 4,340 square kilometres. If you visit Qinghai Lake, you can photograph wildlife, visit islands, ride a bike or horse. Qinghai Lake is more beautiful in summer. If you visit in July, you can see many beautiful birds and fields of blooming rape flowers. Walk along the lake and enjoy the clear blue water stretching to the sky— every view is a wonderful surprise. Come to Qinghai Lake and make your dream come true! 假设你是张明，你的澳大利亚朋友 Alex 计划来中国体验自然景观。请你写一封邮件，向他推荐你喜爱的自然景观——桂林山水(Guilin's landscape)。 内容提示：1.景观位置与基本概况 2.独特之处（至少两点） 3.游玩建议（如乘船、徒步等） 要求：1.包括全部内容提示，语言流畅，语法正确 2.100词左右，已给出部分不计入总词数 参考词汇：广西壮族自治区 the Guangxi Zhuang Autonomous Region；漓江 the Lijiang River；乘坐竹筏 take a bamboo-raft ride Dear Alex, I strongly recommend Guilin's landscape to you. ____________________________ Yours, Zhang Ming 本单元的话题是“自然奇观”，针对这一话题，我们可以围绕自然奇观的特色展开写作。此类作文常会以写广告的方式进行考查，文体为应用文。人称多采用第二人称，时态以一般现在时为主，写作时应按照“吸引注意一提供信息一促使行动”的逻辑顺序，确保内容层层递进、有效触达受众。 审题 Useful expressions: 素材积累 (1) Do you like ...? 你喜欢……？ (2) Do you want to visit ...? 你想参观……吗？ (3) Located ..., ... is one of the most famous wonders to visit. 位于……是参观的最著名的奇观之一。 (4) It is famous for ... 它因……而出名。 (5) Every year thousands of visitors come to ... 每年都有成千上万的游客来…… (6) Here, you can ... 在这里，你可以…… (7) For people who love nature, visiting ... 对热爱自然的人来说，参观…… Dear Alex, I strongly recommend Guilin's landscape to you. Yours, Guilin is in the Guangxi Zhuang Autonomous Region, famous for its beautiful mountains and clean water. The most special things are the strange-shaped mountains and the clear Lijiang River. The water is so clear that you can see the fish swimming. Also, the mountains look like different animals from different angles, which is really amazing. For fun, you can take a bamboo-raft ride down the Lijiang River to enjoy the views. You can also hike up the mountains for a bird's-eye view. I'm sure you'll have a great time here. Yours, Zhang Ming Example: Language points Point 1 It takes up an area of 345,000 square kilometres and includes many islands and white sand beaches. 它的面积达34.5万平方千米，包含 900多个岛屿和白色沙滩。 【辨析】include, included与including include 意为“包括；包含”，强调把某事物作为整体的一部分包含在内。后面直接接宾语 included include的过去分词，用来补充说明前面提到的事物包含在某个范围内，放在名词或代词后 including 作介词，用来引出包含在整体中的部分内容，一般放在被包含的事物之前 1.The price of the tour includes ________ (visit) the museum. 2.Everyone _________ (include) in the meeting should arrive on time. 用法：不用于进行时。其后可接名词、代词或动词-ing 作宾语，不可接动词不定式。例句：Students should master one or two life skills every year. These skills can include cooking, washing their own clothes and tidying their rooms. visiting included 语境串记：The whole family will tour some big cities, including Beijing and Shanghai. So everyone is very happy, me included.全家人将去包括北京和上海在内的一些大城市旅游。因此大家非常开心，包括我在内。 Point 2 The Great Barrier Reef is also alive! 大堡礁也是有生命的！ 【辨析】alive, live, lively 与 living alive 意为“活着的；有生气的”，作表语或后置定语 live 作动词时读/liv/，意为“居住，生活”；作形容词时读/larv/，意为“活的，现场直播的” lively 意为“活泼的；生动的；充满活力的”，作定语或表语 living 意为“活着的；现存的”，作定语或表语 All the people alive are very lucky to escape from the fire. 所有还活着的人都很幸运地从火灾中逃了出来。 I live in Beijing. 我住在北京。 There is a live fish in the bowl. 碗里有一条活鱼。 She is a lively girl. 她是一个活泼的女孩。 All living things need water. 所有生物都需要水。 alive /əˈlaɪv/ adj. 活着；在世；有活力 单词 词性 词义 用法说明 alive 形容词 活着的 表语形容词，不直接修饰名词，be alive 活着 lively 形容词 活泼的 可作定语/表语，a lively child 活泼的孩子 常用搭配：come alive 热闹起来；有精神起来 bring sth. alive 使……有趣；变得有生气 例句：Love your parents well while they are alive. Don’t wait until it is too late. She comes alive when she sits down at the piano. Language points 词汇 词性 含义及用法 示例 life n.(lives) 寿命，生活，人生 people's lives人的生命 alive adj. 活着的，在世的 keep alive活着 情绪饱满；有生气；有活力 be alive with happiness 高兴得眉飞色舞 live adj. 活的，多指动物；现场直播的 a live fish一条活鱼 v． 居住；生活 live in居住 lively adj. 充满趣味的；充满生气的 a lively girl一个活泼的女孩 living n. 生计 make a living谋生 拓展： 1.The fish is still _________ in the water.（alive/lively） 2.We had a _________ time at the party.（alive/lively） alive lively Exercises 单项选择 一、根据汉语提示填写单词 1. We need to write a ________（报告）about the protection of local natural wonders for the project. 2. The students designed a ________（海报）to call on people to protect the nearby forest. 3. It’s our duty to ________（传播）the idea of protecting natural wonders to more people. 4. The ________（调查）shows that most tourists support sustainable travel in national parks. 5. She gave a ________（演讲）about marine protection at the school environmental festival. report poster spread survey speech 二、用括号内所给词的适当形式填空 1. It’s wise of __________ (travel) to carry a map and a guidebook during trips. 2. People in the world should work together to protect the ________ (nature) environment. 3. It’s __________ (risk) to drive at high speed in such heavy fog. natural risky travellers 4. I keep three pet __________ (turtle). They like swimming in the tank. 5. In ________ (south) China, people often eat rice as their main food. turtles southern 三、方框选词并用其适当形式填空。 1. The old bridge’s ___________ was too weak, so engineers built a new bridge beside it. 2. __________ looks like colourful rocks but in fact, it is small sea animals. freshwater, northeast, coral, lifetime, attract, structure structure Coral 3. Lu Xun is a famous writer in China and he wrote hundreds of articles in his __________. 4. Poyang Lake is the largest ____________ lake in China. 5. Harbin, a city in ______________ China, is famous for its Ice and Snow World. freshwater, northeast, coral, lifetime, attract, structure lifetime freshwater northeastern 6. As we all know, Luoyang is famous for its peonies. It ________ millions of visitors from home and abroad every year. attracts 四、 根据汉语意思完成句子。 1.去年夏天，我去了一个坐落在我们省南部的山村旅游。 Last summer, I travelled to a mountain village ________ ________ the south of our province. 2. 在这个村子里，一个湖泊占据了中心区域的很大面积。 In the village, a lake ________ ________ a large area of the central area. located in takes up 3. 我们游览了不同类型的地方，比如古老的石桥和传统的农舍。 We visited ________ ________ ________ places, such as ancient stone bridges and traditional farmhouses. 4. 在村子外面，我们还看到了令人惊叹的自然奇观，比如一个巨大的瀑布。 Outside the village, we also saw amazing __________ __________ like a huge waterfall. different types of natural wonders 5. 尽管旅途有些疲惫，但我们很开心，毕竟这是一次难忘的经历。 Although the trip was a bit tiring, we were very happy. ________ ________ it was an unforgettable experience. After all 五、书面表达。 长城是世界七大奇迹之一，在暑假到来之际，学校校报要求同学们写一篇介绍长城的广告，弘扬中国文化，尽显中华风采。 提示要点：1. What is the meaning of the Great Wall? 2. What is the best time to visit the Great Wall? 3. What can you do on the Great Wall? 4. ... 要求：1. 词数80 左右； 2. 须包含提示要点，可适当增加细节，以使行文连贯； 3. 文中不得出现真实姓名、学校等信息。 Discover the Great Wall __________________________________________________________________________________________________ Discover the Great WallDiscover Wall Are you ready for an unforgettable journey? Come to the Great Wall! You must see it when you have a chance because it is a symbol of China. It's not just a wall but a wonder of ancient China. The Great Wall is one of the world’s greatest wonders. It was built over 2,000 years ago to protect China. Stretching over 13,000 miles, it offers both views and rich history. The best time to visit is spring and autumn for pleasant weather. You can hike along ancient steps and towers. You can take amazing photos of the mountains. You can learn stories from the past. Do you hear the Chinese saying, "He who has not climbed the Great Wall is not a true hero." Don’t miss this unforgettable experience! Come and explore the Great Wall today! 本课句型 Summary 我都 学会了! Writing travel advertisement Beginning Body (key information) Ending 用问句吸引读者，引出主题 Do you love...? Do you want to visit...? 位置：Located in/on/at... northeastern 规模：It takes up an area of 345,000 square kilometres. 特色：biggest, largest, longest... 体验：If you visit... you can do/see colourful... 用感叹句强化吸引力，号召前往 For people who love ..., visiting ... is the dream of a lifetime! Beginning Body (key information) Ending 用问句吸引读者，引出主题 Do you love...? Do you want to visit...? 位置：Located in/on/at... northeastern 规模：It takes up an area of 345,000 square kilometres. 特色：biggest, largest, longest... 体验：If you visit... you can do/see colourful... 用感叹句强化吸引力，号召前往 For people who love ..., visiting ... is the dream of a lifetime! 课堂总结 Basic (必做) 收集 1-2 个其他自然奇观的英文资料，尝试用本节课学到的句型简单介绍。 Improving(选做) 2.模仿大堡礁的广告，选你喜欢的一处自然奇观，写一篇80词左右的英文广告，尽量用到本节课学的词汇和句型。 Extend (选做) 3.独立制作一张关于家乡自然景观的英文海报，包含英文标题、至少3条关键信息（位置、规模、特色等），并增加一段“保护自然”的英文倡议。 Homework Thank you ! $