Unit 4 Amazing Plants and Animals Section A 3a-3c课件2026-2027学年人教版英语八年级上册

该初中英语课件聚焦形容词和副词最高级的构成及用法，通过“Who is the tallest/dances best”对话和talented特质转盘游戏导入，激活学生对比较级的已有认知，搭建从已知到未知的学习支架，引导自然过渡到最高级学习。 其亮点在于结合“Amazing Plants and Animals”主题创设真实语境，通过分类归纳（按音节规则变化、不规则变化）和多样化练习（知识竞赛、短文填空、改错），培养语言能力和思维品质。例如用熊猫文本引入最高级，3c短文整合银杏文化提升文化意识，学生在互动中掌握语法，教师可借助系统资源高效教学。

Unit 4 Amazing Plants and Animals 第3课时 Section A (Grammar Focus 3a-3c) R·八年级上册 I want to know you! A: Who is the tallest in your class? B: I think … A: Who dances (the) best in your class? friendly sing well hard-working popular thin talented smart funny They are fat and cute, black and white. They only live in China and are more famous than any other animal to Chinese. People all over the world love them and we’re doing our best to look after them. _______are ______ ______ ________ of all the animals in China. the most famous Pandas 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? 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 构成方法 原级 最高级 单音节词和部分双音节词 一般情况下，在词尾加-est tall; short tallest; shortest 以字母e结尾的词，在词尾加-st large; late largest; latest 重读闭音节词尾只有一个辅音字母时，先双写该辅音字母，再在词尾加-est big; fat biggest; fattest 以“辅音字母+ y”结尾的双音节词，先把y改为i，再加-est easy; heavy easiest; heaviest 多音节词和部分双音节词 在词前加most beautiful; popular most beautiful；most popular 规则变化 形容词和副词的最高级的构成 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) He threw the ball farthest in the competition. furthest (抽象意义的深远) She has thought furthest about the future of AI. 不规则变化 形容词和副词的最高级用法 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，同一类事物范围内的比较用of。 In my country, July is the hottest month of the year. 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。 She is Lucy’s best friend. 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? （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. 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? 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 3b 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 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 4．Tom has just got the only chance to visit Peking University. He 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 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 6.Hainan is a very large Island. It is the second _________ island in China. (large) 7.Our teacher is as ______ as before. (busy). 8.He is __________________ among us. (careful) 9.Li Lei jumped far ____________ than Jim. (far) 10.The busier he is, the ________ he feels. (happy) busy the most careful farther happier largest 11. For most of the students, June is always the _______ month in a year. (busy) 12. Asking questions is one of the ________ ways to lead you to active learning. (easy) 13. Who is the _______, Amy, Alice or Ann?（thin） busiest easiest thinnest 三、完成句子。 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 4.The Yangtze River is_______________ river in the world. (第三长河） 5.Jane always ______________________ in our class. (到校最早) 6.Lin Sen is _______________________ in the class because he never gets to school on time. （最懒的学生之一） 7.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 third longest arrives at school earliest 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完成短文 五.Let’s correct the sentences. Ginkgo is one of most ancient trees in China. __________________________________________________________________ The cheetah runs fast among all land animals. __________________________________________________________________ Elephants are the largestest animals on land. __________________________________________________________________ This butterfly has colourfulest wings. __________________________________________________________________ She thinks bamboo is the useful plant. ________________________________________________________________ Ginkgo is one of the most ancient trees in China. The cheetah runs the fastest among all land animals. Elephants are the largest animals on land. This butterfly has the most colourful wings. She thinks bamboo is the most useful plant. Do some exercises by using comparatives and superlatives. Write a composition to introduce your classmates by using comparatives and superlatives. Homework $