Unit 4 Section A Grammar focus (3a-3c) 课件-2026-2027学年人教版八年级英语上册

Unit 4 Amazing Plants and Animals section A Grammar 3a-3c Lead-in Watch the video and answer the questions. 1. The blue whale is __________ and __________ animal in the world. the largest the heaviest 2. The __________land animal in the world is the African elephant. largest 3. The cheetah runs __________ among all land animals. the fastest 4. I think _____________ plant in the world is bamboo. the most useful 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. Translate all the sentences. 蓝鲸是世界上最大、最重的动物。 世界上最大的陆地动物是非洲象。 在所有陆地动物当中，猎豹跑得最快。 我认为世界上最有用的植物是竹子。 它或许是世界上最有趣的植物。 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. 形容词 副词 最高级 Which parts of speech (词性) have superlative forms? Adjectives and Adverbs. Let’s learn. 三者或三者以上的人/事物进行比较，表示“最……”。 superlative forms Meimei Dongdong Xiaoming 1. Xiaoming is ________ than Dongdong. 2. Xiaoming is _________ child among them. 3. Meimei is ___________ child among them. taller the tallest the shortest 01 含义 superlative forms 02 最高级的构成规则 ★规则变化 1. 一般情况，词尾直接加-est tall ----- tallest fast----- fastest short ----- shortest superlative forms 02 最高级的构成规则 ★规则变化 2. 单词以e结尾，直接加 -st nice----- nicest late----- latest large----- largest superlative forms 02 最高级的构成规则 ★规则变化 3. 辅音字母 + y结尾：变y为i，再加-est easy----- easiest early----- earliest funny----- funniest superlative forms 02 最高级的构成规则 ★规则变化 4. 重读闭音节（辅+元+辅结尾）：双写尾字母，再加-est big ----- biggest thin----- thinnest fat----- fattest superlative forms 02 最高级的构成规则 ★规则变化 5. 多音节词 / 部分双音节词：单词前加 most interesting----- most interesting beautiful----- popular----- most beautiful most popular superlative forms 02 最高级的构成规则 ★不规则变化（必须记忆，无固定规则） 原级 最高级 good/well bad/badly many/much little far best worst most least farthest furthest superlative forms Practice 说出下列单词的最高级 busy: ________　　　　 few: ________ hot: ________　　　　 sad: ________ helpful: ________　　　　 easy: ________ exciting: ________　　 far: ________ lazy: ________　　　　 well : ________ wide: ________　　　　 careful: ________ many : ________　　　　 slowly: ________ quiet: ________　　　　 important: ________ busiest hottest the most helpful the most exciting laziest widest most quietest fewest saddest easiest farthest best most careful most slowly most important superlative forms 03 最高级的范围标志词 看到下面这些词，句子常常要用最高级！ 1. in + 地点/范围（在……里面） in our class 在我们班； in the world 在世界上 2. among + 三者/多个人或事物（在……之中，后面接复数） among all students 在所有学生中 3. of + 群体/数量（同类对象） of all 在所有人当中； of the three 在这三者之中 in 地点 of 同类 among 置身群体内 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. Find the signal words in the sentences. superlative forms 04 核心句型 01 主语 + be + the + adj.最高级 + (n.) + 范围 ……是……范围内最…… 02 主语 + 实义动词 + (the) + adv.最高级 + 范围 ……在……当中做得最…… 💡提示：形容词最高级前面必须加the；副词最高级的the可以省略。 Tom is the tallest boy in our class. Lily takes notes (the) most carefully of all. superlative forms 04 核心句型 03 3. one of + the + adj.最高级 + 可数名词复数 最…之一（考试高频！） 04 4. 主语 + be + the + 序数词 + adj.最高级 + 名词 + 范围 …是…范围内第几最… 名词必须用复数！ Hangzhou is one of the most beautiful cities in China. The Yangtze River is the first longest river in China. one of 形高名复谓单 superlative forms Practice 翻译下列句子 1. Jack是我们学校最强壮的学生。 2. 在这些女孩当中，Lucy唱歌最好听。 3. 三亚是中国最受欢迎的地方之一。 4. 黄河是中国第二长的河流。 Jack is the strongest student in our school. Lucy sings (the) best among the girls. Sanya is one of the most popular places in China. The Yellow River is the second longest river in China. superlative forms 05 最高级前面不加the的特殊情况 1.最高级前如果有物主代词(my/his/her)，不加the This is my busiest day. 这是我最忙碌的一天。 2.副词最高级，the可以省略 He runs (the) fastest. 他跑得最快。 superlative forms 06 最高级和比较级互换 比较级形式表示最高级含义 You play the Chinese flute better than anyone else in our music club. I love playing sports more than anything. 我喜欢运动胜过一切 He runs faster than anyone in his class. 他跑得比他班上任何人都更快 You play the Chinese flute (the) best in our music club. I love playing sports (the) most of all. He runs (the) fastest in his class. superlative forms Practice 同义句转换 1. Tom is taller than any other boy in our class. 2. This is the most interesting book of all. 3. She runs faster than anyone in her group. 4. The Yangtze River is the longest river in China. Tom is the tallest boy in our class. This book is more interesting than any other book. She runs fastest in her group. The Yangtze River is longer than any other river in China. 3b Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb? Among all animals, I love pandas the best. I think they are __________(cute) animals in the world. Which do you think is _________________ (beautiful), the rose, the peony, or the lotus flower? Look at that butterfly! It has __________________ (colourful) wings. Which animal jumps ___________ (high), the lion, the monkey, or the tree frog? 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. n. 玫瑰；蔷薇 n. 牡丹；芍药 n. 荷花，莲花 n. 蝴蝶 n. 翅膀，翼 n. 蛙，青蛙 接近，直到 1. weigh (v.) 重达；称重 2. weight (n.) 重量 3. weigh up to 重达（后接数字） 4. lose weight 减肥 5. put on weight 增重 3b Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb? Among all animals, I love pandas the best. I think they are __________(cute) animals in the world. Which do you think is _________________ (beautiful), the rose, the peony, or the lotus flower? Look at that butterfly! It has __________________ (colourful) wings. Which animal jumps ___________ (high), the lion, the monkey, or the tree frog? 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. 1. 一找范围 2. 二看单词 3. 三别忘加the the cutest the most beautiful the most colourful (the) highest heaviest the largest 3c Complete the passage with the superlative forms of the words in the box. 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. n. 银杏 adj. 古老的 adj. 美丽的 adj. 常见的 adj. 好的 adj. 受欢迎的 the most ancient the most beautiful conj. 因为 ...的象征 believe v. 相信 belief n. 信念，信任 believable adj. 可相信的 unbelievable adj. 难以置信的 搭配 believe sb. 相信某人的话 believe in sb. 信任某人 句型 believe + that从句 相信…… It's believed that… 人们相信…… the best the most common the most popular n. 省份 给他们的内心带来喜悦 用所给词的适当形式填空 1. Tom runs ______ (fast) than his brother. 2. This is one of _______________ (beautiful) parks in our town. 3. The box is ______ (heavy) than that one. 4. Who is ____________ (thin) student in your class? 5. The Yellow River is the second _______ river in China. 6. She sings ______ (well) than me. 7. Of all the animals, pandas are __________ (cute). 8. Today is ______ (hot) than yesterday. 9. This is __________ (bad) movie I have ever watched. 10. Lily writes _______________ (carefully) than Lucy. Practice faster the most beautiful heavier the thinnest longest better the cutest hotter the worst more carefully 用所给词的适当形式填空 11. Winter is ____________ (cold) season in a year. 12. My bag is __________ (cheap) than yours. 13. He jumps ___________ (high) among the three boys. 14. The garden becomes ______ (pretty) after rain. 15. This story is _______________ (interesting) than that one. 16. Jack is ___________ (young) of the four students. 17. The wind blows ____________ (strong) in winter. 18. This book is as ______ (good) as that one. 19. One of ________________ (popular) sports is basketball. 20. Her hair is ______ (long) than mine. Practice the coldest cheaper (the) highest prettier more interesting the youngest (the) strongest good the most popular longer Unit 4 Amazing Plants and Animals section A Grammar 3a-3c Thank you! $