Unit 4 Section A Grammar focus (3a-3c) 课件-2025-2026学年人教版八年级英语上册

该初中英语课件聚焦形容词、副词最高级的构成及运用规则，通过“比较动物身高、速度”等情境化问题导入，结合蓝鲸、非洲象等实例引导学生观察例句，搭建从具体现象到规则归纳的学习支架，衔接已有比较级知识。 其亮点在于以“神奇动植物”主题为载体，通过规则变化表格（如tall-tallest）和不规则变化填空结构化呈现语法，融入银杏树文化阅读（象征希望与长寿），培养语言能力（语境填空与短文写作）和文化意识。采用任务型练习（3b语法填空、3c短文完成），学生能提升语法运用准确性与表达连贯性，教师可借助梯度资源高效开展教学。

Unit 4 Amazing Plants and Animals 人教版2024版八年级上册 Section A (Grammar Focus) 语法课 Learning Objectives 1.学生能够通过观察和分析 3a 中含形容词、副词最高级的例句，深入理解最高级的构成形式及定冠词 “the” 的搭配规则，明确最高级在描述 “最……” 特征时的语义功能。 01 2. 学生能够掌握并准确运用形容词、副词最高级及相关句式完成 3b 填空练习，在具体语境中根据单词音节数灵活选择 “- est” 或 “most” 的构成形式，提升最高级运用的准确性和熟练度。 02 3. 学生能够熟练运用最高级及相关结构完成 3c 语篇填空，通过分析银杏的特征（如年代、外观、常见度等），将信息转化为连贯的最高级表达，在小组中交流对银杏的认知，展示对最高级语法的实际运用能力。 03 Can you compare their height/weight? The giraffe is the tallest among them. The elephant is the heaviest among them. Can you compare their speed? The cheetah runs the fastest. The turtle is the slowest. 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. 1.蓝鲸是世界上最大、最重的动物。 2.世界上最大的陆地动物是非洲象。 3.猎豹在所有陆地动物中跑得最快。 4.我认为世界上最有用的植物是竹子。 5.它可能是世界上最有趣的植物。 Can you put them into complete sentences in English? 蓝鲸 最大，最重 最大 陆地动物 非洲象 猎豹 跑得最快 最有用 竹子 它也许是世界上最有趣的植物。 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. How do we form superlatives? 构成方法 原级 最高级 单音节词和部分双音节词 tall short fast high large late big fat thin easy heavy early 多音节词和部分双音节词 beautiful interesting popular tallest shortest fastest highest 一般情况下，词尾加-est largest latest 以字母e结尾的词，词尾加-st biggest fattest thinnest 重读闭音节词尾只有一个辅音字母时，先双写该辅音字母，然后词尾加-est easiest heaviest earliest 以“辅音字母+y”结尾的双音节词，先把y改为i，然后词尾加 -est most beautiful most interesting most popular 词前加most How do we form superlatives? 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 Complete the sentences with the superlative forms of the words in brackets. 3b 861b240d-cd4e-4b4b-87c2-161e8c2fa4ea.source.default.zh-Hans 11 The ginkgo tree 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 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 银杏树是地球上现存最古老的活树之一。银杏树最早出现在2亿多年前。中国人喜欢银杏，因为它象征着希望和长寿。许多中国人认为，陕西省中南山区的老银杏树是最美丽的。每年都有成千上万的游客前来观赏，尤其是在十月中旬，因为这是观赏它的最佳时间。银杏树是中国各地街道、公园和花园中最常见的树木之一。秋天来临时，最受欢迎的活动之一是在银杏树下散步。人们相信明亮的黄色叶子能给他们的心带来快乐。 Lavf58.20.100 $