Unit 4 Section A (Grammar Focus 3a-3c) 课件 2025-2026学年人教版（2024）英语八年级上册

该初中英语课件聚焦形容词和副词最高级的构成、用法及表达。课堂通过视频导入，结合珠峰、尼罗河等世界记录例句创设情境，3a活动引导学生观察加粗词自主归纳规则，形成从具体实例到抽象语法的学习支架。 其亮点在于融入蓝鲸、长城等世界自然文化素材，渗透文化意识；通过改写句子（如“否定词+比较级”表最高级）培养思维品质；设计报告任务和思维导图，提升语言表达能力。学生能在真实情境中运用语法，教师可借助结构化资料高效教学。

Home Sweet Home Amazing Plants and Animals Unit 4 Section A (Grammar Focus 3a-3c) ①学习生词和短语: land, African, rose, peony, lotus, butterfly, wing, frog, weigh, weigh up to, kg, ginkgo, believe, province, take a walk ②掌握形容词和副词最高级的用法。 学习目标 Watch the video Can you express these world's records in one sentence? ●Mount Everest is the highest mountain on Earth, standing at an elevation of 8848.86 meters. ●The Nile River is the longest river in the world, meandering across the deserts of North Africa for 6650 kilometers. ●The Sahara Desert is the largest hot desert in the world, covering an area of nearly 9 million square kilometers. ●Blue whales are the largest animals on Earth, reaching lengths of over 30 meters and weighing up to 180 tons, gracefully moving through the deep sea. ●The Mariana Trench is the deepest place in the world's oceans, plunging to a depth of 10994 meters and challenging humanity's exploration of extreme environments. ●The Great Wall is the longest man-made structure in the world, spanning 21196 kilometers and bearing thousands of years of history and culture. Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb? 3a The blue whale is the largest and the heaviest animal in the world. The biggest land animal in the world is the African elephant. The cheetah runs the fastest among all land animals. I think the most useful plant in the world is bamboo. It is perhaps the most interesting plant in the world. 最高级 the superlative Question: Which parts of speech (词性) have superlative forms? 861b240d-cd4e-4b4b-87c2-161e8c2fa4ea.source.default.zh-Hans 6 形容词、副词的最高级 当我们要将三个或三个以上的人或事物进行比较时，可以用形容词或副词的最高级形式来表达。 注意： 形容词最高级前要加定冠词the，副词最高级前的the有时可省略。 定义 Unit 4 Section A Grammar Focus 形容词、副词最高级的规则变化 单音节和少数 双音节单词 构成方法 原级 最高级 一般在词汇尾加-est tall, long, short, old, hard, fast 以字母e结尾的副词直接加-st nice, fine, large, close, late 以重读闭音节结尾的词，如 末尾只有一个辅音字母，应 先双写该字母，再加-est big, hot, thin tallest, longest, shortest, oldest, hardest, fastest nicest, finest, largest, closest, latest biggest, hottest, thinnest Unit 4 Section A Grammar Focus 构成方法 原级 最高级 单音节和少数 双音节单词 以“辅音字母 +y” 结尾的副词，先把y变成i，再加-est busy, easy, early 大部分双音节 和多音节单词 在单词前加most careful, carefully, dangerous, slowly, beautiful, beautifully busiest, easiest, earliest most careful, most carefully, most dangerous, most slowly, most beautiful, most beautifully Unit 4 Section A Grammar Focus Complete the sentences with the superlative forms of the words in brackets. 3b 1. Among all animals, I love pandas the best. I think they are _____________(cute) animals in the world. 2. Which do you think is ____________________(beautiful), the rose, the peony, or the lotus flower? 3. Look at that butterfly! It has __________________(colourful) wings. 4. Which animal jumps____________ (high), the lion, the monkey, or the tree frog? 5. The elephant birds were ____________(large) and ______________(heavy) birds ever on earth. Some could stand up to three metres tall and weigh up to 860 kg. the cutest the most beautiful the most colourful the highest the largest the heaviest • 最高级的其他表达方式—— 用比较级形式表达最高级意义。 请根据汉语意思写出英文句子。 • 他是我们班最好的学生。 ___________________________ • 这是我听过最好听的歌曲。 ____________________________ He is the tallest student in our class. It is the best song I have heard. 如何用比较级的形式来表达最高级的意义呢？ 他比我们班其他同学都高。 我从没听过比这更好听的歌曲。 He is taller than any other student in his class.  I have never heard a better song.  比较级 + than any other + 单数名词 否定词 + 比较级 • 最高级的其他表达方式—— 用比较级形式表达最高级意义。 根据括号内的要求，改写下列句子，使其意思不变。 • This is the most exciting movie I have ever seen. → I have ______ ______ ______ ______ exciting movie. • The Yangtze River is the longest river in China. → The Yangtze River is ______ ______ ______ ______river in China. • He is the smartest student in our class. → He is ______ ______ ______ ______ student in our class. • This is the most delicious cake she has ever made. → She has ______ ______ ______ ______ delicious cake. • Lucy is the most careful girl of all the workers. → Lucy is ______ ______ ______ ______ ______worker. never seen a more longer than any other smarter than any other never made a more more careful than any other 形容词和副词的最高级 最高级形式的构成 最高级表达的句型 用比较级形式表达最高级意义 规则变化（5条） 不规则变化 the + 最高级 + （可数名词单数）+ in/of ... one of the + 最高级 + （可数名词复数）+ in/ of ... 序数词 + 最高级 特殊疑问词 + the + 最高级， A, B or C？ 比较级 + than any other + 单数名词 否定词 + 比较级 与比较级变化相同 形容词和副词的最高级 最高级易考易错点 最高级应用的判断 1.最高级前面要加the. 形容词最高级前面必须加the 副词最高级前面the可以省略 最高级前加物主代词或名词所有格等，表示明确的所属关系时，不再使用the。 2.最高级表达一定要有范围. in + [范围/群体/地方] of + [具体的同类个体] among + [模糊的群体] 1.是不是三者或三者以上在进行比较，三者或三者以上比较用最高级。 2.如果句末有in/of 短语来表示范围，则用最高级。 3.如果句中有one of the ...，就用最高级。 Complete the passage with the superlative forms of the words. 3c ancient beautiful common good popuplar The ginkgo tree is one of ________________living trees on earth. Ginkgo trees first appeared over 200 million years ago. Chinese people love the ginkgo, as it is a symbol of hope and long life. Many Chinese believe that the old ginkgo tree in the Zhongnan Mountains in Shaanxi Province is _____________________. Thousands of tourists come to see it each year, especially in mid-October, as it is ____________________time to see it. The ginkgo tree is one of ____________ trees in streets,parks, and gardens across China. When autumn comes, one of _____________________activities is to take a walk under ginkgo trees. People believe the bright yellow leaves can bring joy to their heart. the most ancient the most beautiful the best the most common the most popular Complete the passage with the superlative forms of the words in the box. The ginkgo tree is one of ______________ living trees on earth. Ginkgo trees first appeared over 200 million years ago. Chinese people love the ginkgo, as it is a symbol of hope and long life. Many Chinese believe that the old ginkgo tree in the Zhongnan Mountains in Shaanxi Province is ________________. Thousands of tourists come to see it each year, especially in mid-October, as it is ___________ time to see it. The ginkgo tree is one of ______________ trees in streets, parks, and gardens across China. When autumn comes, one of ________________activities is to take a walk under ginkgo trees. People believe the bright yellow leaves can bring joy to their heart. ancient beautiful common good popular the most ancient the most beautiful the best the commonest the most popular Panda is also called “the living fossil”. It appeared 8 million years ago. Can you try to say something about it with the help of the sentence structures and the superlatives of the adjectives? Of all the animals, ____________________________. The panda is one of ___________________________. I think the panda is _________________________ in the world. beautiful lovely heavy large popular Give a report Try to give a report with the help of the mind map. What’s it like? What’s special? Why do people love it? Where do people see it? Tips: 1. Intonation 注意重读 ★★★ 2. Superlative 用到最高级 ★★★ 3. Content 内容丰富★★★ Summary know when to use the superlative. know the way to form a superlative. know many amazing animals and plants; love them and introduce them. -est; most…; … of…/in…/one of.../… After learning this lesson, I can Exercise 一、单句语法选择 1. Of all the students, Lucy lives the ________ to school . She always walks to school. A．farther B．farthest C．close D．closest 2．This is one of ____ films of this year. more exciting B. exciting C. the most exciting D. most exciting 3．Which do you like ________, bread, eggs or sandwiches? A．better B．best C．well D．much D C B 1.Hainan is a very large Island. It is the second _________ island in China. (large) 2.Our teacher is as ______ as before. (busy). 3.He is __________________ among us. (careful) 4.Li Lei jumped far ______ than Jim. (far) 5.The busier he is, the ________ he feels. (happy) busy the most careful farther happier largest 二. 用所给单词的适当形式填空。 三、完成句子，每空一词。 1. 珠穆朗玛峰是世界上最高的山峰。 Mount Qomolangma is _______ ________ mountain in the world. 2. Tom is the tallest student in his class.（保持句意不变） Tom is _________ ________ any other ________ in his class. 3. 评书是中国最传统的艺术形式之一。 Pingshu is _______ _______ _______ ________ ____________ art forms in China. the highest taller than student the one of most traditional Plan a trip along the Silk Road using the new language. China is an amazing country. It has the world’s _______ (high) mountain. The Yangtze River is its _______(long). Pandas are the ___________ (famous) of all the animals in our country. The Silk Road is the _______(old) trading road to the world. When we plan a trip, making choices doesn’t mean to choose the _________(good) or the _______________(expensive) one, but the __________ (proper) one. best most expensive most proper highest longest most famous oldest 四. 用所给单词的适当形式填空 必做： 1.规则梳理： 在笔记本上整理一份形容词和副词最高级构成规则（规则与不规则）的思维导图或表格，并各举2个例子。 2.句型演练： 完成PPT中第14页（3b练习）和第16页（3c练习）的填空任务，确保使用最高级的正确形式。 3.造句练习： 使用最高级仿照例句写5个句子，描述你的家人、朋友或你所在的城市。 例句: My father is the busiest person in my family. / Shanghai is one of the biggest cities in China. Thank You! Lavf59.27.100 Bilibili VXCode Swarm Transcoder v1.2.2 $