Unit 3 Section 2 Grammar（语法优质课）-2025-2026学年八年级英语上册同步优质课件（沪教版2024）

该初中英语课件聚焦形容词和副词的原级、比较级、最高级，通过“草儿越来越绿”等自然现象及苹果大小比较导入，从具象实例到语法规则，以“Lead in-Presentation-Practice”结构搭建从感知到应用的学习支架。 其亮点是生活化情境与梯度练习结合，如电脑发展对话、家乡介绍任务提升语言能力，对比辨析题培养思维品质，规则表格和访谈任务助力学习能力。学生在实践中掌握语法，教师可高效开展分层教学。

Unit 3 Our digital lives Section 2 Grammar 沪教版八年级上 目录 01 lead in 02 Presentation 03 Practice 04 Homewrok Lead in PART ONE Presentation PART Two Let's describe: Apple A is as big as apple B. Apple A is as heavy as apple B. original grade 原级比较 apple A apple B Apple A is not so big as apple C. Let's compare: apple A apple C original grade 原级比较 Apple A is not as heavy as apple C. apple A apple C "as...as..." 结构用于原级比较，表示两者在某方面程度相同，基本结构是 "A + be动词 + as + 形容词原级 + as + B"，意为"A和B一样..."。 1. 形容词原级比较（用于系动词后） - She is as tall as her brother.（她和她哥哥一样高。） - This book is as interesting as that one.（这本书和那本一样有趣。） 2.否定形式（not as...as...，表示前者不如后者） - This movie is not as exciting as the previous one.（这部电影不如上一部刺激。） Apple A is not so big as apple C. Let's compare: apple A apple C Apple C is bigger than apple A. Apple A is smaller than apple C comparative grade 比较级 Apple A is not so heavy as apple C. Let's compare: apple A apple C Apple C is heavier than apple A. Apple A is kighter than apple C comparative grade 比较级 形容词的比较级 一、基本结构 A + be 动词 + 形容词比较级 + than + B 表示 “A 在某一属性上比 B 更……” This apple is bigger than that one.（这个苹果比那个大。） Her voice is sweeter than mine.（她的声音比我的甜。） Apple A is____ ________one of the three. Apple C is ____ ________one of the three. Apple C is ____ ________one of the three. superlative grade 最高级 the smallest the biggest the heaviest Let's describe: apple C apple A apple C apple B 形容词最高级基本结构 the + 形容词最高级 + 表示范围的短语 / 从句 She is the tallest girl in our class. （她是我们班最高的女生。） This is the most interesting book that I have ever read.（这是我读过的最有趣的书。） 原级 big ,small heavy, light 比较级 bigger, smaller heavier, lighter 最高级 biggest, smallest heaviest, lightest How to change the form of the words? 规则变化（词尾变化）regular 原级 比较级 最高级 1. 单音节词在词尾加er或 est，以 字母e结尾的加r或 st tall wide 2. 以重读闭音节结尾的词末只有一个辅音字母应双写辅音再加er或 est hot 3. 以辅音字母y结尾的词变y为 i，再加er或 est happy 4. 多音节词和多数双音节词在其前面加more或 most 也可以在其前面加上less或 least popular more popular less popular most popular least popular taller wider tallest widest hotter hottest happier happiest Let's review: 不规则变化 irregular 原级 比较级 最高级 good/well bad/ill many/ much little/far less least better best worse worst more most farthest furthest farther further Practice 1 PART Three 1. ill/bad/badly _____ ___ 2. busy ______ _______ 3. rude ______ _______ 4. thin ______ ______ 5. little _____ _______ 6. many/ much _____ _____ 7. difficult _______ _____ 8. fast _______ _______ Write the comparative and superlative adjectives and adverbs. Let's challenge: worse worst worse worst worse worst worse worst worse worst worse worst worse worst worse worst 1. Tom is _______ (tall) than Jone. 2. Who is _______ (tall), Tom or Jone? 3. Tom is _____________ (tall) of the two boys. taller taller the taller 两者之间选择,特征词which,who...A or B? 两者中的一个 Let's put into use: 两者之间比较,特征词than 4. Tom is much ________(tall) this year. 5. Now the weather is getting ________and _______ (hot).（越来越热） 6. He studies ________and _______ _________(carefully) (越来越认真） 7.The ________(hard) Tom studies, the _______(good) mark he will get. taller much,even,far, a lot..后跟比较级 越来越...要用比较级 harder better hotter hotter more carefully more 两者选择 A or B? 比较级 两者比较, 标志词than 比较级+and + 比较级 much, even, far ,a lot 越...就越 两者中的一个of the two. Let's make a conclusion: 1. ---which is ___________(heavy), a tiger or an elephant? ----An elephant is much ____________(heavy) than a tiger. 2. I'm good at English. English is __________(difficult) than science. 3. Mary is ______________ (thin) of the two girls. 4. It's spring now. The weather is getting _____________(warm) 5. My _________(old) sister is two years_________(old) than I. 6. The population in China is much _________(large) than ________ in America. Let's improve ourselves: heavier heavier more difficult the thinner warmer elder older larger that 1. China is bigger than _____ in Africa. 2. China is bigger than ______in Asia. A. any countries B. any other country C. any country D. the other countries C B Let's think: China is the biggest country in Asia. superlative grade 最高级 比较级 than 最高级 ...of/in... in his class Tom is taller than Tom is the tallest student in his class. anyone else any other student the other students any of the others any of the other students Nobody is ________ ________ Tom in his class. taller than Let's exchange: In which situation we'll use superlative grade? Let's think: the + 最高级+of/in(三者及以上范围) superlative grade one of the+最高级 +名词复数+in/of the+序数词+最高级+名词+in/of Which/Who is the +最高级，A，B or C? the+ 最高级+名词(that)I have ever seen... Let's make a conclusion: 1. India has ___________(large)population in the world. 2. Yangzi River is ____________ (long) river in Asia, it's also the third _______ river in the world. 3. Which is ____________(big) ,the sun ,the earth or the moon? 4. Shanghai is one of ____________(modern) cities in the world. 5. This is ______________(beautiful) music I have ever heard. Let's put into use: the largest the longest longest the biggest the most modern the most beautiful 1. The bread is ____ than these cakes. A. very delicious B. much delicious C. more delicious D. as delicious 2. Lin Tao jumped ____ in the long jump in the school sports meeting. A. far B. farther C. farthest D. quite far C Let's practise more: C 3. In our city it’s ____ in July ,but it is even ____ in August. A. hotter，hottest B. hot ，hot C. hotter，hot D. hot ，hotter 4. Hainan is a very large Island .It is the second ___island in China. A. large B. larger C. largest D. most largest C D 5. Tom studies much_________(hard)this term. ___________(hard)he studies, ___________(good)grades he will get! 6. Mary is ____________(thin) of the two girls, she'd better eat_______(many). 7. After graduating from university he wants to go to America for ________(far)study. harder The harder the better the thinner more further Practice 2 PART Four Comparative and superlative adjectives When we compare two people or things, we can use the comparative form of the adjective. When we compare more than two people or things, we can use the superlative form of the adjective. Read the dialogue between Su Mei and Su Wen. Pay attention to the words in bold. Su Mei: Oh, what's this? Su Wen: It's a computer from the 1940s. You know what? The first computers were bigger than cars. Nowadays, computers are much smaller and better. Su Mei: I see. Besides size, what else is different? Su Wen: Computers today are much faster than before Su Mei: That must be true. Some computers are even smarter than human beings. Su Wen: No, I don't think so. I think human beings are the smartest. After all, we invented computers. big bigger biggest smart smarter smartest interesting more interesting most interesting adjective comparative adjective superlative adjective • To form comparative adjectives, we often add -er to an adjective with one or two syllables and use more with adjectives of three or more syllables. • We often use than after comparative adjectives. • To form superlative adjectives, we often add - est to an adjective with one or two syllables and use most with adjectives of three or more syllables. • We usually use the before superlative adjectives. 1 Complete the conversation with the comparative or the superlative of the adjectives in brackets. Su Wen: Did you watch that science show on TV last night, it was about computers. Su Mei: No, I didn’t. Was it interesting? Su Wen: Yes! Scientists designed (1)________(early) chess computers in the 1950s. At the time, the computers could not beat human players. Even ordinary people were(2)_________(good) than these first chess computers. But in 1997, a computer named Deep Blue won a chess match against the world champion. This was (3)___________(famous) chess game against a computer in history. the ealiest better the most famous Su Mei: Wow, that's a big victory for artificial intelligence (Al)! Su Wen: Indeed! Back then, Deep Blue was(4)_____________ (powerful) chess computer in the world. But now, an ordinary computer can beat (5)____________(good) human players. Su Mei: Well, that may be true, but humans invented AI. Also, computers cannot think like we do. That means humans are still(6)____________(smart) than computers! the most powerful the best smarter • Which do you think is more convenient to read, e-books or print books? • Does... make your life easier or harder? • Is it safer to make new friends online or offline? 2 Interview your teachers and classmates about their attitudes towards digital technology. Write questions with comparative and superlative adjectives before you start. Most of my classmates / teachers think that it is more convenient... Some say it is safer / easier to... 3 Summarize the information you collected in Exercise 2 and share your findings with the class. You may begin your summary with the following sentences. Homework 1. 完成课时作业本 2 完成听说作业 3 用比较级和最高级介绍一下自己的家乡 感谢观看 Lavf58.29.100 Bilibili VXCode Swarm Transcoder v0.3.77 $$