Unit 4 课时1 Section A 1a-1d（教学课件）英语新教材人教版八年级上册

该初中英语课件围绕“神奇动植物”主题，聚焦最高级用法及相关描述，通过“Look and share”观察花与蜜蜂图片导入，联系自然美与传粉重要性，Pre-listening借助词汇（如old、fast）和特征描述（如苔藓无根茎、红杉高100米）搭建学习支架，为听力活动铺垫。 其亮点在于以听说活动为载体融合语言能力与思维品质培养，While-listening通过对话排序、特征匹配（如蓝鲸是最大最重动物）练习最高级，Post-listening拓展问题（如“更多动植物之最问题”）激发探究。学习能力方面，Pre-listening信息整理、Post-listening资料收集任务引导主动学习，学生提升语言运用与知识拓展，教师可依托清晰结构与多样活动高效教学。

Unit 4 Amazing plants and animals 第1课时 Section A 1a-1d 课型：听说课 ln this unit, you will talk about some amazing plants and animals. use superlatives to compare more than two things. discuss the connection between plants, animals, and our lives. explore why plants and animals are important to us. What makes plants and animals amazing? BIG Question Learning Objectives 最高级 v. 比较 n. 联系 Look and share What do you see in the photo? What do you think of when you see the photo? Flowers and bees. When I see the photo, I think of the beauty of nature and the importance of bees in pollination. Learning Objectives In this lesson, you will: 【学习理解】 List four "world's best" plants/animals and use superlatives to describe their features; identify unique traits in listening. 【应用实践】 Use core sentence patterns to ask and answer questions about amazing plants and animals in oral exchanges. 【迁移创新】 Actively collect and organize information about world records of plants and animals to expand knowledge. Do you know the following plants or animals? moss 苔藓 blue whale 蓝鲸 redwood tree 红杉 cheetah 猎豹 What facts do you know about these plants and animals? Pre-listening ancient: appeared before dinosaurs no roots or flowers loves moisture: grows in wet areas tiny but tough Moss is a small, green and ancient plant that grows in wet areas. It has no flowers or roots and feels like a soft carpet (地毯). Pre-listening very tall: over 100 meters strong and thick bark(树皮) grow in USA: mostly in California very old: can live 2000 years Redwoods are giant, ancient trees that grow in California’s foggy coasts/mountains! Pre-listening the largest and heaviest animal eat tiny food: eat krill(磷虾)—4 tons a day heart size: as big as a small car Blue whales are gentle giants, with a heart the size of a car, but they only eat tiny krill. Pre-listening the fastest land animal: runs in 100km/h light body: slim, long legs and flexible spine（灵活的脊柱）, long tail for balance special marks：black “tear lines” on the face and black spots Cheetahs are the fastest land animals, reaching 100km/h in short bursts. Pre-listening 1a Look at the plants and animals. Use the words in the box to talk about them. beautiful big fast heavy large long old small tall short moss: __________ blue whale: ____________ cheetah: _______________ redwood tree:______________ old, small large, heavy tall, beautiful fast, beautiful Pre-listening Listen to the conversations and number the plants and animals in la in the order you hear them. 1 2 3 4 1b While-listening Listening tip: Catch the keywords. Listen again. Match the words with the plants and animals in 1a. Some have two answers. blue whale:______________ 1 blue whale:______________ 3 A. heaviest B. largest C. most beautiful D. oldest E. fastest F. tallest A B D 1c D. oldest A. heaviest B. largest While-listening cheetah:______________ 2 redwood tree:____________ 4 A. heaviest B. largest C. most beautiful D.oldest E. fastest F. tallest F C E F. tallest C. most beautiful E. fastest While-listening Listening Material Emma: Hi,Yaming. What are you doing? Yaming: Hi, Emma. I'm starting a test on animals and plants. Emma: Sounds fun. Let's take it together. Yaming:OK. First question. What's the largest animal in the world? Emma:It's the blue whale, right? Yaming: Right. It's also the heaviest animal on earth. Next question. Which animal runs the fastest? Emma:Oh wait! I just read about it. The cheetah runs the fastest. Yaming: Right again! And I think it's the most beautiful animal in the world. Emma:I completely agree with you. Conversation 1 While-listening Conversation 2 Yaming: Now let's answer the questions about plants. What is the oldest plant in the world? Emma: Hmm, I'm not sure. Do you have any idea? Yaming: Well, I think moss is one of the oldest plants. It appeared on earth around 470 million years ago ... Oh, look here. I'm correct! Emma: Interesting! Let's go on! Yaming: Which kind of tree is the tallest in the world? Emma: The redwood tree, right? Yaming: Yes! I hope I can see some someday. We use "the + -est" or "the most + adjective" (e.g., the most beautiful) to talk about the extreme animals and plants. While-listening Ask and answer questions about the plants and animals in la. What's amazing about the blue whale? It's the largest / biggest animal in the world. 1d Post-listening Why are Emma and Yaming talking about these animals and plants? Because they are taking a test on extreme animals and plants. Think and Share Can you think of more questions for the test on animals and plants? （动植物之最） Post-listening Which animal is the biggest on land? giraffe What is the tallest animal on land?  Which animal has the longest lifespan? Greenland shark (average life span: 400 years) Which plant grows the fastest? bamboo elephant Post-listening Language points Language Points 1. I’m starting a test on animals and plants. 我要开始一场关于动植物的测试。 在此句中，on 是介词 ，意为 “关于；有关” ，用来表明 test（测试）的内容主题是 animals and plants 。 例如：She wrote a book on history. 她写了一本关于历史的书。 【辨析】about与on on 强调专业性、学术性或严肃性，内容通常是系统的、深入的，涉及理论、研究或专门领域。 about 侧重日常性、通俗性或泛泛而谈，内容更偏向非正式的内容。 例如：She told me a story about her pet dog. 她给我讲了一个关于她宠物狗的故事。 2. What’s the largest animal in the world? 世界上最大的动物是什么？ largest是large的最高级形式。最高级前面一般会有定冠词the进行修饰。 形容词和副词的最高级一般分为规则变化和不规则变化。 规则变化如下： 构成方法 比较级 单音节词和部分双音节词 一般情况下，最高级词尾加-est tallest；shortest；fastest 以字母e结尾的词，最高级词尾加-st largest；latest 重读闭音节词尾只有一个辅音字母时，先双写该辅音字母，然后最高级词尾加-est biggest；fattest；thinnest 以“辅音字母+ y”结尾的双音节词，先把y改为i，然后最高级词尾加-est easiest；heaviest；earliest 多音节词和部分双音节词 词前加most构成最高级 most beautiful；most popular Language Points 不规则变化如下： It’s also the heaviest animal on earth. The cheetah runs the fastest. And I think it’s the most beautiful animal in the world. I think moss is one of the oldest plants. 原级 最高级 good / well best bad / badly worst many / much most little least far farthest furthest 例如： What’s the largest animal in the world? Which animal runs the fastest? What is the oldest plant in the world? Which kind of tree is the tallest in the world? Language Points 3. Well, I think moss is one of the oldest plants. 嗯，我认为苔藓是最古老的植物之一。 one of + 限定词 + 复数名词 / 代词 限定词包括冠词（the）、形容词性物主代词（my, their）、指示代词（these, those）等。表示 “…… 中的一个”，强调在整体中选取一个个体。 例如： She is one of my friends. 她是我的一个朋友。 This is one of the best movies I’ve ever seen. 这是我看过的最好的电影之一。 Language Points 【主谓一致】 one of 结构作主语时，谓语动词用单数（因为核心词是 “one”，表示 “一个”）。 例如： One of the students is from Canada. 这些学生中有一个来自加拿大。 One of these books has a missing page. 这些书中有一本缺页了。 【最高级搭配】 “one of” 常与 形容词最高级 连用，构成 one of the + 最高级 + 复数名词， 表示 “最…… 的…… 之一”。 The Great Wall is one of the greatest wonders in the world. 长城是世界上最伟大的奇迹之一。 Language Points 1.根据句意和汉语提示完成句子 1. The cheetah is the _______ (最快的) animal on land. 2. Redwood trees are the _______ (最高的)trees in the world. 3. Moss is one of the _______ (最古老的) plants on Earth. 4. The blue whale is the __________(最重的) animal in the ocean. 5. The __________ (红杉) forests are home to some of the largest living organisms on our planet. fastest tallest oldest heaviest redwood Exercise 2.翻译题 1. 这个湖泊是我们城市里最深的湖泊。 This lake is the deepest lake in our city. 2. 蓝鲸是世界上最大的动物。 The blue whale is the largest animal in the world. 3. 蜂鸟是世界上最小的鸟类。 The hummingbird is the smallest bird in the world. 4. 这个花园里的玫瑰是我见过最美丽的。 The roses in this garden are the most beautiful I have ever seen. Exercise Thanks for your listening! null 108541.555 null 106007.43 $