Unit 4 第3课时 Section A Grammar Focus—3c-【七彩课堂】2025-2026学年八年级英语上册同步课件（人教版2024）

该初中英语课件聚焦人教版八年级上册Unit 4“Amazing Animals and Plants”主题，核心讲解形容词和副词最高级的构成规则（规则与不规则变化）及用法（三者及以上比较、范围表达等），通过猜熊猫、丝绸之路等主题猜谜活动导入，以“观察例句（3a）-总结规则-分层练习（3b单句、3c语篇）”为学习支架，帮助学生逐步掌握语法点。 其特色是将语法教学与主题语境深度融合，融入熊猫、银杏、丝绸之路等中国文化元素，通过3a观察总结规则培养分析能力（思维品质），Read and guess活动结合文化引导语言输出（语言能力），分层练习提升应用能力。学生在真实语境中学习激发兴趣，教师可借助结构化活动高效教学。

Unit 4 Amazing Animals and Plants Section A Grammar Focus 3a—3c To learn to make comparisons using superlatives. To talk about some amazing plants. Objectives Grammar Focus 3a Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb? The blue whale is the largest and 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. large — largest heavy — heaviest big — biggest fast — fastest useful — the most useful interesting — the most interesting Observe the words and find the rules. The superlative forms of adjectives and adverbs. fast short high light tall slow 直接加- est heavy easy happy hungry early funny 把y 变 i 再加- est 规则变化 A B large late nice 加- st biggest thinnest hottest wettest fattest big thin hot wet fat “双写” 最后一个辅音字母再加-est C D useful interesting beautiful good / well bad / badly many / much little far 在词前加 the most- best worst most least farthest / furthest 不规则变化 E F 形容词和副词的最高级 1. 表示三者或三者以上(人或事物)的比较，其中有一个在某一方面超 过其他几个，后面可用带有in、of、among的短语等来说明比较的范 围。形容词最高级的前面一般要加定冠词the，副词最高级前的the 可以省去。 ①The blue whale is the largest and heaviest animal in the world. ②In my country, July is the hottest month of the year. ③The cheetah runs (the) fastest among all land animals. 某一范围内的比较用in 同一类事物范围内的比较用of 副词最高级前的the可以省去哦 This is my worst performance. She is Lucy’s best friend. Reminder: 如果最高级前有形容词性物主代词或名词所有格等修饰语时则不再用定冠词the。 2.最高级的常用结构 （1）the + 形容词或副词最高级 + in / of 短语 ……中最……的 Tom is the tallest in his class. Tom runs (the) fastest of all the students. （2）序数词与最高级结合 The Yangtze River is the third longest river in the world. （3）one of the + 形容词或副词最高级 +名词复数 表示“最……之一” Beijing is one of the largest cities in the world. （4）特殊疑问句中的最高级 Which animal jumps the highest, the lion, the monkey, or the tree frog? Who is the kindest person in your family? （5）比较级表达最高级的含义 Julia is taller than any other girl in her class. =Julia is the tallest girl in her class. is the ________mountain in the world. Qomolangma highest Let’s practice! is the _______ river in China. longest The Yangtze River Read and guess. are ______ ______ ________ of all the animals in China. the most famous Pandas They are fat and cute, black and white. They only live in China and are more famous than any other animal to Chinese. People over the world love them and we’re doing our best to look after them. Think and guess. It begins at Chang’an. This is an old trading road. is the _______trading route in the world. The main product is silk. oldest The Silk Road friendly sing well hard-working popular thin talented smart funny A: Who sings (the) best in your class? A: Who is the thinnest in your class? B: I think … I want to know you! Let’s play a game! 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 heaviest the most colourful the highest the largest Complete the passage with the superlative forms of the words in the box. 3c ancient beautiful common good popular 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 most ancient 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 common the most beautiful the most popular the best 散步 Language points 1. The biggest land animal in the world is the African elephant. 世界上最大的陆地动物是非洲象。 land n. 陆地；土地 v. 降落；着陆 take off 起飞 on land 在陆地上 by land 经陆路 A piece of land in the middle of the sea is island.海中央的一块陆地是岛屿。 Did you go there by land or by sea?您是通过陆路还是海路去的？ The plane landed before the storm came.飞机在暴风雨来临之前降落了。 A butterfly landed on her shoulder.一只蝴蝶落在了她的肩膀上。 African n. 非洲人 （可数名词） 复数：Africans adj. 非洲的;非洲人的 ① There are five Africans in our school. 我们学校有五个非洲人。 ②African drumming plays a key role in traditional ceremonies. 非洲鼓乐在传统仪式中发挥着关键作用。 Do you know? Asia 亚洲 Asian 亚洲的；亚洲人 Africa 非洲 African 非洲的；非洲人 Europe 欧洲 European 欧洲的；欧洲人 2. Some could stand up to three metres tall and weigh up to 860 kg. 有些可以站立到 3 米高，重达 860 公斤。 weigh v. 有……重；称重量 weight n. 重量；分量 常见搭配 weigh about+数词 重约…… weigh over+数词 超过……重 weigh up to+数词 重达…… 固定词组 put on weight 增加体重 lose weight 减重 — How much does the baby weigh? — It weighs 4 kg. 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 I. 用所给单词的适当形式填空。 Exercises 3. Lin Sen is _______________________ in the class because he never gets to school on time. （最懒的学生之一） 4. Edison was_________________________in the world. 　(最伟大的发明家之一） one of the laziest students one of the greatest inventors The Yangtze River is________________river in the world. (第三长河） the third longest 2. The Atlantic is __________________ ocean in the world. ( 第二大洋） the second biggest II. 完成句子。 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 III. 用所给单词的适当形式填空 Homework 1.Do some exercises by using comparatives and superlatives. 2.Write a composition to introduce your classmates by using comparatives and superlatives. 伴你成长 $