Unit 4 课时3 Section A Grammar Focus（教学课件）英语新教材人教版八年级上册

该初中英语课件聚焦形容词和副词最高级的构成规则（规则及不规则）与用法，通过“世界之最”视频及珠穆朗玛峰、蓝鲸等实例导入，引导学生观察分析，搭建从具体语境到语法规则的学习支架，衔接理解与应用环节。 其亮点在于情境化与互动性融合，以动植物和世界之最主题为载体，通过转盘对话游戏提升语言能力，引导学生归纳规则培养思维品质。分层练习（单句、短文填空）巩固知识，既让学生在真实情境中自信表达，也为教师提供结构化教学资源。

Unit 4 Amazing plants and animals 第3课时 Section A Grammar focus 课型：语法课 Learning Objectives In this lesson, you will: 【学习理解】 1.Summarize formation rules of superlative adjectives and adverbs, including regular and irregular forms and understand their function in comparing three or more items. 【应用实践】 Correctly use superlative forms to describe outstanding features of plants and animals in various contexts, including comparisons. 【迁移创新】 Apply superlatives in real-life situations and express personal opinions about amazing features of plants and animals confidently. What does this video talk about? World's Records Lead-in 861b240d-cd4e-4b4b-87c2-161e8c2fa4ea.source.default.zh-Hans 4 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. Lead-in Lead-in 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. 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. 3a Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb? Read and observe 形容词 形容词 副词 形容词 形容词 形容词 Which parts of speech (词性) have superlative forms? 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. 3a Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb? Read and observe 双音节heavy最高级 双音节useful的最高级 单音节large最高级 单音节fast最高级 单音节big最高级 三音节interesting的最高级 音节 是否是规则变化 形容词/副词最高级的用法 （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of、in、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。 e.g. In my country, July is the hottest month of the year. The cheetah runs (the) fastest among all land animals. Presentation （2）用于“one of the +最高级+复数名词”，表示“最……之一”。该结构作主语时，谓语动词用单数。 e.g. She is one of the most hard-working students in our class. The Great Wall is one of the most famous attractions all around the world. （3）用于“the+序数词+最高级+单数名词”，表示“第几最……” e.g. The Yellow River is the second longest river in China. The Yangtze River is the third longest river globally. Presentation 构成方法 原级 最高级 单音节词和部分双音节词 high tall highest tallest fine nice finest nicest big thin biggest thinnest easy funny early easiest funniest earliest 1. 一般在词汇尾加-est 2. 以字母e结尾的词，在词尾加-st 3. 重读闭音节词词尾只有一个辅音字母时，先双写该辅音字母，再加-est 4. 以“辅音字母+y”结尾的双音节词，先把“y”变为“i”， 再加-est 形容词/副词最高级的构成（规则变化） Presentation 构成方法 原级 最高级 多音节词和部分双音节词 在词前加most comfortable carefully most comfortable most carefully Tips: 由“动词+-ed”或“动词+-ing”构成的形容词变最高级时，通常在该形容词前加 most。 interesting→most interesting relaxed→most relaxed exciting→most exciting boring→most boring Presentation 形容词/副词最高级的构成（规则变化） Presentation 形容词/副词最高级的构成（不规则变化） 原级 最高级 例句 good(形容词) / well(副词) best She is the best student in the class. He plays the piano best among us. bad(形容词) / badly(副词) worst This is the worst movie I've ever seen. She performed worst in the competition. many(形容词) / much(副词) most This is the most interesting book I've read. She works most efficiently in the team. little(形容词/副词 ) least He has the least experience in this field. She speaks English the least fluently among us. far(形容词/副词 ) farthest (具体距离的远近) The moon is the farthest celestial body we can see. He threw the ball farthest in the competition. furthest (抽象意义的深远) This theory goes to the furthest extent of human imagination. She has thought furthest about the future of AI. 形容词、副词的最高级的常用句型 句型结构 含义 例句 ①the + adj. /adv. 最高 级 + of/in/among... 在……中 最……(的) She is the youngest girl in her class. 她是班上最小的女孩。 ②one of the + adj. 最 高级 + 名词复数 最…… 的……之 一 Beijing is one of the oldest cities in China. 北京是中国最古老的城市 之一。 ③the + 序数词 + adj. /adv. 最高级 第几…… He runs the second fastest in our class. 他在我们班上跑得第二快。 Presentation 3b Complete the sentences with the superlative forms of the words in brackets. 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? the cutest the most beautiful Practice 3. Look at that butterfly! It has _______________(colourful) wings. 4.Which animal jumps ___________(high), the lion, the monkey, or the tree frog? the most colourful the highest Practice 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 largest heaviest Practice Complete the passage with the superlative forms of the words in the box. 3c ancient beautiful common good popular the most ancient the most beautiful Practice the best the most popular the most common 银杏 省份 Let’s play a game! friendly sing well hard-working popular thin talented smart funny A:Who sings (the) best in your class? B: … A:Who is the thinnest in your class? B: I think … I want to know you! Production 1.Some could stand up to three meters tall and weigh up to 860 kg. 有些能够长到高达3米，重达860千克。 weigh 及物动词，表示“称……的重量；重(多少)” eg：Do you often weigh yourself? 你经常称体重吗？ 名词形式为 ____________ eg：He has grown both in height and weight. 他的身高和体重都增加了。 weight Language Points 对重量提问，可以用以下几种句型： How much does. .. weigh? How heavy is. ..? What is the weight of. ..? Language Points 【对点训练】 1．The baby pandas often ________ (weight) about 0.1 to 0.2 kilos at birth. 2．My aunt eats less these days because she says she wants to lose （weigh）. weigh weight Language Points 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 Exercise 4．Tom has just got the only chance to visit Peking University. She is the ______student in class. lucky B. luckier C. luckiest D. luckily 5．—Our class did well in the school singing competition. —Yes, you sang ________ of all. beautifully B. most beautiful C. most beautifully D. more beautifully C C Exercise 二、用所给词的适当形式填空 1.Which color do you like ________ (well), white, blue or green? 2.I think Blue Light is one of the ________ (bad) restaurants in our town. 3.The third ________(long) river in the world is the Yangtze River. 4. AI is one of the ____________(amazing) inventions. I think it will change the world. 5.When Helen won a prize in the English competition, she believed she was the (happy) girl in the world. best worst longest most amazing happiest Exercise 三、语法选择 体裁： 记叙文 词数：167 难度： ★★☆☆ 建议用时： 6 mins 正确率： ______/10　 Many people choose to travel to Lhasa by car or bike. However，Xu Fei from Anhui decided 　 1 　.　　 to Lhasa in an excavator (挖掘机). to get C (　　) 1．A．getting B．get C．to get Exercise Xu Fei started this journey 　2　 18 March，2024. He said，“Even excavator drivers have their big 　　3　　. I’ll drive the excavator to Lhasa！” He suffered from a disease. (　　) 2．A．on B．in C．at (　　) 3．A．dream B．dreams C．dream’s on A dreams B He had to change a few jobs 　4 　 he still wanted to work as a driver. His family was very 　　5　　 about him but still agreed. (　　) 4．A．or B．but C．and (　　) 5．A．more worried B．the most worried C．worried but B worried C He took the 318 Sichuan-Xizang Route (路线). He drove only about 20 kilometres every hour. In fact，he drove 　　　6　　　 than most other cars. During his slow trip，　7　 used the excavator to help other people. (　　) 6．A．slower B．more slowly C．most slowly (　　) 7．A．he B．him C．his more slowly B he A For example，he liked fixing (修) roads and helping cars. Along the way，many people 　 　8 　 　 their thanks to him. (　　) 8．A．expressed B．express C．will express expressed A He enjoyed the beautiful landscapes and ate 　 9 　 local food. Xu Fei said it was one of 　　　　 10　 　　　　. experiences in his life. (　　) 9．A．a B．an C．the (　　) 10．A．Unforgettable 　　　　 B．more unforgettable 　　　　 C．the most unforgettable the C the most unforgettable C Thanks for listening! Lavf59.27.100 Packed by Bilibili XCoder v2.0.2 $