Unit 4 Amazing Plants and Animals (第3课时) Section A 3a～3c（课件）-2025-2026学年人教版（2024）八年级英语上册

八上人教 第三课时 3a-3c Section A What can plants and animals do ? Amazing Plants and Animals Amazing Plants and Animals Unit 4 01 Learning goals 01 Learning goals 2 ①学习生词和短语: land, African, rose, peony, lotus, butterfly, wing, frog, weigh, weigh up to, kg, ginkgo, believe, province, take a walk ②掌握形容词和副词最高级的用法。 学习目标 02 Review 02 Review I want to know you! A: Who is the funnest in your class? B: I think … A: Who sings (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 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 03 Grammar 03 Grammar 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. /lænd/陆地；土地 /ˈæfrɪkən/ 非洲的；非洲人的 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、副词的最高级 1. 用法：英语中三者或三者以上相比较，表示“最……” 这样的最高程度概念时，要用“the+最高级”的结构。含最高级的句式中通常带有表示范围的介词短语，比如: in our class, of the three 等。 例如: Wang Lin is the tallest in our class. This theater is the cheapest of the three. （1） 主语+be+the+形容词最高级+in/of/among短语 “…… 是……中最……的” （2）主语+实义动词（+the）+副词最高级+in/of/among短语 “……在……中最……” eg. My mother is the busiest one in my family. eg. The cheetah runs the fastest among all land animals. （4）“疑问词（组）+be+the+形容词最高级，甲，乙or丙?” 用于三者之间的比较。 eg. Who is the best English teacher, Mr. Zhang, Miss Li or Miss Wang？ eg. Bamboo is one of the most popular subjects in Chinese paintings. （3）主语+be+one of the+形容词最高级+可数名词复数+in/of 短语“……是……中最……的……之一” （5） “疑问词（组）+助动词+主语+动词原形（+the）+副词 最高级，甲，乙 or 丙?”用于三者之间的比较。 eg. Which city do you like best, Beijing, Shanghai or Guangzhou？ （6）主语+be+the+序数词+形容词最高级+可数名词单数+in/ of短语 ……在……中是第几……的…… eg. The Yellow River is the second longest river in China. 形容词、副词的最高级 2. 最高级的构成 1. 规则变化 clever—cleverest high—highest small—smallest young—youngest cheap—cheapest a. 一般情况下，单音节或双音节词直接在词尾加-est。如： large—largest nice—nicest cute—cutest b. 以字母e 结尾的词，在词尾加 -st。如： c. 以“辅音字母+y”结尾的双音节词，变y为i ，再加-est busy—busiest heavy—heaviest easy—easiest early—earliest dirty—dirtiest funny—funniest big—biggest thin—thinnest fat—fattest hot—hottest important—most important carefully—most carefully beautiful—most beautiful e. 多音节词和部分双音节词，在词前加most 构成最高级。 d. 以重读闭音节结尾，末尾只有一个辅音字母的词，双写最后一个辅音字母，再加 -est。如： 2. 不规则变化： 原级 比较级 最高级 good /well better best bad /ill/badly worse worst little less least many /much more most far farther /further farthest /furthest old older /elder oldest /eldest 最高级规则变化口诀： 最高级，很容易，一般词尾加-est。(cheap—cheapest) 词尾若有哑音e，直接就加-st。(nice—nicest) 重读闭音节， 单辅音字母要双写。(big—biggest) 辅音字母加y，记得把y变为i。(friendly—friendliest) 多音节，考考你，most到底加哪里？ (popular—most popular，carefully—most carefully) 18 复习：最高级的构成 tall short quick thick light cool warm quiet wild calm -- est A heavy easy tidy dry busy happy early healthy hungry y -- i-- est B large late nice -- st C big hot thin “双写辅音 fat 字母” wet biggest hottest thinnest wettest fattest D 加most beautiful carefully comfortable interesting different E most beautiful most carefully most comfortable most interesting most different 04 Language points 04 Language points 1.The biggest land animal in the world is the African elephant.地球上最大的陆生动物是非洲象。 (P35 3a) land n. 陆地；土地 v.降落；着陆 （1）[不可数名词]陆地；土地 与sea（海洋）相对。 on land在陆地上 by land经陆路 The giraffe is the highest animal on land.长颈鹿是陆地上最高的动物。 Did you go there by land or by sea?你是经陆路还是海路去那里的？ （2）[不及物动词]降落；着陆 反义短语为take off “起飞”。 The plane will land at 7 a.m.飞机将于早上七点着陆。 The biggest land animal in the world is the African elephant.地球上最大的陆生动物是非洲象。 (P35 3a) African adj. 非洲的；非洲人的 n.非洲人 （1）[形容词]非洲的；非洲人的 Tom likes African food very much.汤姆非常喜欢非洲食品。 （2）[名词]非洲人 其复数形式是Africans。 Those Africans will come to China next year.那些非洲人明年将会来中国。 【拓】Africa[名词]非洲 There are many countries in Africa.非洲有很多国家。 2. The biggest land animal in the world is the African elephant.地球上最大的陆生动物是非洲象。 (P35 3a) weigh v. 有……重；称重量 （1）[系动词]有……重，重量是…… 对重量提问常用“How much do/does...weigh?”“What do/does...weigh?”或 “How heavy is/are...?。 How much/What do you weigh? = How heavy are you?你的体重是多少？ When Ya Ya was born in the Beijing Zoo, she weighed about 0.14 kilos.丫丫在北京动物园出生时大约140克重。 （2）[及物动词]称……的重量 weigh oneself称体重 She weighed the stone in her hand.她用手掂了掂那块石头的重量。 【拓】（1）weigh[动词]认真考虑；权衡 Laura spoke very slowly to people to weigh what she would say.劳拉对人们说话非常慢，以便权衡她要说什么。 （2）weigh[名词]重量；分量 put on/gain weight增加体重 lose weight减重 【语境串记】 She weighed 80 kilos months ago. Unsatisfied with that number, she decided to lose weight and weigh herself every day.几个月前，她重80千克。由于对那个数字很不满意，她决定减肥并且每天称体重。 up to 接近；直到 （1）接近 常用来表示接近某数量或程度等。 The temperature went up to 35 ℃.气温上升到了35摄氏度。 （2）直到 up to now到目前为止 Read up to page 100. 读到第100页。 Up to now he’s still quiet.他直到现在仍保持沉默。 【拓】be up to sb.是……的职责；由……决定 —Mom, which club should I choose, the art club or the science club?妈妈，我应该选择哪个俱乐部，艺术俱乐部还是科学俱乐部？ —It’s up to you. Just follow your heart.由你决定。跟着自己的 心走。 05 Exercises 05 Exercises 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 玫瑰 牡丹 莲花 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 most colourful highest the largest the heaviest 翅膀 蛙 重 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. the most ancient 银杏 ancient beautiful common good popular 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. the most beautiful the best the most popular 相信 省，省份 ancient beautiful common good popular 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 commonest/most common Shaanxi Province 陕西省 Shanxi Province 山西省 一、用所给词的适当形式完成句子。 1. He is _______________ among us. (careful) 2. Hainan is a very large island. It is the second _________ island in China. (large) 3. For most of the students, June is always the _______ month in a year. (busy) 4. Asking questions is one of the ________ ways to lead you to active learning. (easy) 5. Who is the _______, Amy, Alice or Ann?（thin） the most careful largest busiest easiest thinnest 二、完成句子，每空一词。 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 06 Summary 06 Summary 最高级的构成 最高级的常用句型 比较级表达最高级的含义 规则变化、不规则变化 the+最高级+in/of/among... one of the+形容词最高级+可数名词复数+in/on/among... the+ 序数词+形容词最高级+可数名词单数+in/on/among... 形容词和副词的最高级 比较级+than+any other+可数名词单数 07 Homework 07 Homework Make some dialogues by using the superlatives of adjectives and adverbs. $