Unit 3 Same or Different? Section A (Grammar Focus)课件-2025-2026学年人教版（2024）英语八年级上册

该初中英语课件聚焦形容词和副词的比较级，系统讲解比较级的规则变化（加-er、双写辅音字母、改y为i等）、不规则变化（如good→better）及原级比较（as...as）、比较级句型（肯定句、疑问句、否定句），通过复习已学形容词副词及日常情境例句导入，搭建从已知到未知的学习支架。 其亮点在于以情境例句（如“Emma is taller than Ella, but her hair is shorter than Ella's”）和“Observe and summarize”归纳活动，融合语言能力（语境运用）与思维品质（分析总结），采用分层练习（“小试牛刀”“Exercises”）提升学习能力。学生能在实际语境中掌握比较级用法，教师可借助清晰结构和丰富例句实现高效教学。

Unit 3 Same or Different? Section A (Grammar Focus) fast shy late tall lazy loud funny outgoing boring short quiet slow hard-working fast slow early late Adj. Adv. Review E.g. I think I’m hard-working because I always do extra practice after class, but I’m quiet in class. We find a doll on the sofa. Is this your doll? RULE 01 - 一般情况下，词尾加-er(单音节词和部分双音节词). 比较级 原级 long short loud slow hard strong long er short er loud er slow er hard er strong er Presentation fast→faster tall→taller big→bigger heavy→heavier slow→slower short→shorter small→smaller quick→quicker hot→hotter expensive→ more expensive (1)甲+be+形容词比较级+than+乙. 甲比乙更…… 这是比较级的一种常用句型，用来比较两个人或事物在某个特征上的差异。 Tina is more hard-working than Tara. 蒂娜比塔拉更勤奋。 比较事物的句型 高频 主语 + 系动词 + 比较级（adj.） + than + 比较对象 主语 + 谓语动词+ 比较级（adv.） + than + 比较对象 Review There are more activities this year. It is more colourful than last year. Emma is taller than Ella, but her hair is shorter than Ella’s. Ella dances better than Emma, but Emma sings louder than her. Emma always gets up earlier than me, but I work as hard as her! 只有_______词和_____词才有比较级形式。 形容 副 Let's learn 形容词：是修饰名词（人或事物），表示名词的性质，特征或属性一种词类。它在句中作定语、表语和宾语补足语。 副词：用来修饰动词、形容词及其他副词的词叫副词。副词在句中多作状语. 形容词和副词的概念 There are more activities this year. It is more colourful than last year. Emma is taller than Ella, but her hair is shorter than Ella’s. Ella dances better than Emma, but Emma sings louder than her. Emma always gets up earlier than me, but I work as hard as her! ______-- more many _________-- more colourful colourful ______-- taller tall ______-- shorter short ______-- better well ______-- louder loud ______-- earlier early Let's learn 1.什么是形容词的原级比较？ 表示修饰两种东西的程度是一样的,用as… as表示原级， 译为“和……一样”。 2.什么是形容词的比较级？ 表示两者相比，一个比另一个更……，有比较级的句中通常有than,且仅限于两者比较。 形容词的原级和比较级 比较级的构成 形容词和副词的比较级 构成的规则变化 01 构成的不规则变化 02 Presentation heavy→heavier fast→faster tall→taller slow→slower short→shorter small→smaller quick→quicker big→bigger hot→hotter 规则变化：单音节词和部分双音节词 1. 一般情况下，比较级词尾加-er 2. 重读闭音节词尾只有一个辅音字母时，比较级词尾 先双写该辅音字母，再加-er 3. 以“辅音字母+ y”结尾的双音节词，先把y改为i，然后比较级词尾加-er easy→easier early→earlier Presentation large→larger late→later 规则变化：单音节词和部分双音节词 4. 以字母e结尾的词，比较级词尾加-r 5. 词前加more构成比较级 规则变化：多音节词和部分双音节词 expensive→ more expensive helpful→ more helpful 小试牛刀 写出下列单词的比较级 1. long → ___________ 2. fat → ___________ 3. strong → ____________ 4. nice → __________ 5. clever → ______________ 6. healthy → ___________ 7. thin → _______________ 8. cute → ______________ 9. joyful → __________________________ 10. popular → ________________________ longer fatter stronger more joyful more popular nicer cleverer healthier thinner cuter 比较级的构成 不规则变化 口 诀 原 级 比较级 good / well bad / badly many / much little far 两 好 两 坏 两 多 一 远 better worse more less farther further 一 少 Observe and summarize Read these examples in Section A and complete the sentences Emma is a little than Ella. (quiet) Ella is than Emma.(funny） Chen Jie works ________ than Peter.(hard） Peter is ________ than Chen Jie.(outgoing） Chen Jie is ________ than Peter. (shy） Chen Jie plays Chinese flute________ than Peter. (well） quieter funnier more outgoing shier harder better This movie is as moving as that one There are more activities this year. It is more colourful than last year. Emma is taller than Ella, but her hair is shorter than Ella’s. Ella dances better than Emma, but Emma sings louder than her. Emma always gets up earlier than me, but I work as hard as her! 1. A+_________+ ___________+than+ B. 2. A+_________ + ___________+than+ B. be 动词 adj.比较级 实义动词 adv.比较级 Read the sentences and notice the comparatives in bold. Find the structure Use the words in brackets to write questions and answers. Are you as serious as your cousin more serious Is Tom smarter than Sam smart Does Jack swim faster than sally fast /slɪm/ 苗条的 Look at the chart. Then complete the sentences to compare Guangzhou and Vancouver. Use the words in the box and than. /fækts/事实 / pɒpju'leɪʃn/人口 large small much warm 1.The population of Vancouver was ___________ that of Guangzhou in 2024. 2.In area, Guangzhou is ___________ Vancouver. 3.It rains ______ in Guangzhou ___________ in Vancouver. 4. Guangzhou has a pleasant temperature in January. It is ______________ Vancouver in January. 5. Vancouver is ____________ Guangzhou in July. smaller than larger than more warmer than cooler than cool than large + r small + er more warm+er cool+er 形容词比较级句型 She is shorter than Emma. I think it is more colourful than last year. I’m a little quieter than Ella. 肯定句：主语+be动词（__________)+形容词________+_______+ 比较对象。 Is Ella taller than Emma? Are you quieter than Ella ? Is it more colourful than last year ? 一般疑问句：Be动词（__________)+主语+形容词________+_______+ 比较对象? am / is / are 比较级 than Is / Are 比较级 than 副词比较级句型 I think Ella dances better than her sister . But you work harder than me. And she sings louder than Ella. 肯定句：主语 + 动词 + 副词________+_______+ 比较对象。 Does Ella dances better than her sister ? Do you work harder than me ? Does she sing louder than Ella ? 一般疑问句：助动词（________)+主语+动词（______)+副词______+_____+ 比较对象? 比较级 than Do / Does 比较级 than 原形 比较级特殊考点 比较 级+than I’m more outgoing than my sister. You know more about yourself than I (do). 比较级前 可以用副词修饰 I’m a little quieter than Ella. I’m feeling much better today. 当than前后所使用的动词相同时，通常用助动词代替后面的动词。该助动词也可以省略。 a little, a bit, （稍微；一点儿）；much, far, a lot, even（…… 得多；甚至更）； 形容词原级比较 I think Ella is as outgoing as her sister . I am as hard-working as you . There are as many activities as last year . 肯定句：主语+be动词（__________)+as+形容词________+as+比较对象。 否定句：主语+be动词（__________)+_____+as/so+形容词______+as+比较对象。 Ella is not as outgoing as her sister . I am not as hard-working as you . There are not as many activities as last year as....as.. not as...as not so...as am / is / are 原级 am / is / are 原级 not 副词原级比较 I think Ella works as hard as her sister . I run as fast as you . She reads as much as me . 肯定句：主语+动词+as+副词________+as+比较对象。 否定句：主语+动词+_____+as/so+副词________+as+比较对象。 Ella doesn’t work as hard as her sister . I don’t run as fast as you . She doesn’t read as much as me as....as.. not as...as not so...as 原级 not 原级 The sun is ________________ (large) than the Earth. This box is smaller ________________ that one. She has ________________ (much) books than her brother. Today is ________________ (warm) than yesterday. There is ________________ (little) water in this bottle than in that one. My English is ________________ (good) than yours. He runs ________________ (fast) than his friend. Lucy is ________________ (slim) than her sister. There are ________________ (many) students in Class 1 than in Class 2. Tom is as smart ______________ his cousin. She wakes up ________________ (early) than her parents. larger than more warmer less better faster slimmer more as earlier Exercises the+比较级， the+比较级 规则变化、不规则变化 比较级+and+比较级 much、a lot 、a little等 as+原级+as 比较级的构成 比较级的用法 可以修饰 比较级的词 平级比较 比较级+than Summary $