资源简介 (共29张PPT)Unit 3 Same or Different SectionA(Grammar Focus 3a -3c )人教版 八年级上册能够掌握形容词和副词比较级的构成规则(包括一般变化、特殊变化及不规则变化),并能正确写出常见词的比较级形式。(学习理解)01能够理解并运用比较级的常用句型(如 “A + 比较级 + than + B”“as + 原级 + as”“the + 比较级 + of the two” 等)进行句子表达。(应用实践)02能够运用比较级描述人或事物的差异,以及讨论不同对象之间的比较,如结合具体情境比较两个城市、两个人的特征等。(迁移创新)03学习目标Talk about your changes/differences over the past two years.I'm taller than I was two years ago.I have become more outgoing and made more friends.I like sports more now.I'm better at playing basketball now.AppearancePersonalityHabitStrengthLead in●get up early●work hard●run fast●sing wellAppearancePersonalityHabitStrength●tall●strong●short hair●quiet●outgoing●serious●thin●long hair●hard-working●do exercise●play the piano●friendly●read books●cook meals●paint well●jump highReviewLook and sayThe boy runs faster than the girl.The girl runs more slowly than the boy.Let’s compareLook and sayThe red apple is bigger than the green apple.The green apple is smaller than the red apple.Let’s compareLet’s comparePan Zhanle is _______ than Quan Hongchan.Quan Hongchan is _______ than Pan Zhanle.tallershorterThere 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!形容词形容词形容词形容词副词副词副词Presentation3a形容词和副词有三个比较等级:①原级;②比较级;③最高级。两者之间比较用比较级;三者或者三者以上进行比较用最高级。形容词和副词比较等级的构成The rules of changing adjectives or adverbs into their comparative forms.short——shortertall——tallerloud——louder1. 一般情况下,比较级词尾加-er;early——earlier2. 以“辅音字母+y”结尾的双音节词,变y为i,再加-er;large——largerlate——later3. 以字母e结尾的词比较级词尾加-r;big——biggerfat——fatter4. 重读闭音节尾只有一个辅音字母时先写该辅音字母,然后在词尾加-er;适用于单音节词和部分双音节词3aThe rules of changing adjectives or adverbs into their comparative forms.colorful——more colourfulinteresting——more interesting词前加more构成比较级good/well——betterbad/badly——worsemany/much——morelittle——lessfar-further/farther多音节词和部分双音节词不规则的变化3a两好三坏两多一少一远一老比较级规则变化口诀比较级要变化,一般词尾加 er。词尾若有哑音e,直接加r就可以。辅音字母若加y, 记得变y为i。一辅重读闭音节,末尾字母要双写。多、双音节有规律,词前加more就可以。1.什么是形容词的原级?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1、“as + 形容词或副词原级 + as”句型表示“...和...一样”Emma always gets up earlier than me, but I work as hard as her!形容词和副词原级的用法:形容词和副词比较级的用法2. 主语(‘A’)+谓语动词+形容词/副词比较级+than+主语(‘B’)+ … e.g. A modern train is faster than a car.This book didn’t cost me more than that one.当表示一方超过另一方的“程度”时,可以用much, a lot, a little, a bit, even, far等来修饰形容词比较级。注意:比较级不能用very, so, too等修饰。He is much more handsome than his brother.This book is even more useful than that one.Can you come to school a little earlier tomorrow morning 可修饰比较级的词巧学妙记:两多(much, a lot)两少(a little, a bit)一甚至(even),还有一个远(far)去了。◆“the + 比较级 + of the two” 意为 “两者中比较……的”。English is becoming more and more important.◆“比较级 + and + 比较级” 或 “more and more+ 形容词/副词原级”,表示 “越来越……”,其后均不可接than。After the new year, the day is becoming warmer and warmer.◆“The + 比较级, the + 比较级” 意为 “越……,越……”。The harder she worked, the more progress she made.Lisa is the taller of the two girls.比较级常用句型“Which / Who is + 比较级… ”比较A、B两事物, 问其中哪一个较……时用此句型。e.g. Which T-shirt is nicer, this one or that one Who is more active, Mary or Kate 3bUse the words in brackets to write questions and answers.1. Q: Is Julie slimmer than you ( Julie / slim / you)A: No, she isn’t. She is as slim as me.2. Q: ______________________________ (you / serious / cousin)A: No, I’m not. I am ___________ than he is.3. Q: __________________________________ (Tom / smart / Sam)A: No, I don’t think so. I think Sam is as ___________ as Tom.4. Q: _____________________________ ( Jack / swim / fast / Sally)A: No, he doesn’t. He swims as ___________ as Sally.Are you as serious as your cousinless seriousDo you think Tom is smarter than SamsmartDoes Jack swim faster than Sallyfast3cLook at the chart. Then complete the sentences to compare Guangzhou and Chicago. Use the words in the box and than.FactsPopulation (2022) 18.734 million 2.665 millionArea 7,436 square km 589 square kmAverage rainfall per year 1,923 mm 910 mmAverage January temperature 16 °C -6 °CAverage July temperature 31 °C 23 °CGuangzhouChicagolarge small much warm cool1. 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 much _________________ Vancouver in January.5. Vancouver is _________________ Guangzhou in July.smaller thanlarger thanthanwarmer thancooler thanmore(1) 形容词和副词比较级构成规则变化构成方法 原级 比较级单音节词和部分双音节词 一般情况下,比较级词尾加-er tall; short; fast taller;shorter;faster以字母e结尾的词,比较级词尾加-r large; late larger;later重读闭音节词尾只有一个辅音字母时,先双写该辅音字母,然后比较级词尾加-er big; fat; thin bigger;fatter;thinner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; heavy; early easier;heavier;earlier多音节词和部分双音节词 词前加more构成比较级 beautiful; popular more beautiful;more popularSummary(2) 不规则变化原级 比较级good(形容词) / well(副词) betterbad(形容词) / badly(副词) worsemany(形容词) / much(副词) morelittle(形容词/副词 ) lessfar(形容词/副词 ) farther(具体距离的远近)further(抽象意义的深远)当表示一方超过另一方的“程度”时,可以用much, a lot, a little, a bit, even, far等来修饰形容词比较级。注意:比较级不能用very, so, too等修饰。He is much more handsome than his brother.This book is even more useful than that one.Can you come to school a little earlier tomorrow morning 可修饰比较级的词巧学妙记:两多(much, a lot)两少(a little, a bit)一甚至(even),还有一个远(far)去了。◆“the + 比较级 + of the two” 意为 “两者中比较……的”。English is becoming more and more important.◆“比较级 + and + 比较级” 或 “more and more+ 形容词/副词原级”,表示 “越来越……”,其后均不可接than。After the new year, the day is becoming warmer and warmer.◆“The + 比较级, the + 比较级” 意为 “越……,越……”。The harder she worked, the more progress she made.Lisa is the taller of the two girls.比较级常用句型1. This room is a bit than that one.A.big B.bigger C.biger D.biggest2. This book is more interesting than that one.A. much B. many C. little D.few3.Linda’s hair is as as Laura’s.A. longer B.longest C.long D.the longestBAC选择题ExerciseExercise用所给词的适当形式填空1.He plays the piano than his sister.(well)2.He is ___________than his brother. (heavy)3.This book is than that one. (interesting)4.I’m than you.(tall)5.Tom runs as as Jack.(fast)betterheaviermore interestingtallerfastBasic (必做)写出教材 Exercise 表格中 10 个形容词 / 副词的比较级,并任选 5 个词各造一个比较级句子,巩固构成规则和基本用法。用 “as + 原级 + as”“比较级 + than” 两种句型,各写 3 句话描述自己与同桌的 3 处相同点和 3 处不同点。Improving(选做)选择两种自己熟悉的动物,从体型、速度、习性等方面用 5 个比较级句子进行对比描述,如 “The elephant is heavier than the tiger, but the tiger runs faster than the elephant”。查找自己所在城市与另一座城市的人口、气温等数据,用比较级句型完成一段简短的对比介绍(至少 4 句话)。HomeworkReflectingHow well can you do these things Very well OK Needs work1. 我能够掌握形容词和副词比较级的构成规则(包括一般变化、特殊变化及不规则变化),并能正确写出常见词的比较级形式。 □ □ □2. 我能够理解并运用比较级的常用句型(如 “A + 比较级 + than + B”“as + 原级 + as”“the + 比较级 + of the two” 等)进行句子表达。 □ □ □3. 能够运用比较级描述人或事物的差异,以及讨论不同对象之间的比较,如结合具体情境比较两个城市、两个人的特征等。 □ □ □https://www.21cnjy.com/help/help_extract.php让备课更有效www.21cnjy.comThanks!/ 让教学更有效 精品试卷 | 英语学科一、教学目标知识与技能掌握形容词和副词比较级的构成规则,包括一般变化(加-er、变y为i加-er等)、多音节词变化(加more)及不规则变化(如good/well→better),能正确写出常见词的比较级形式。理解并运用比较级常用句型,如“A + 比较级 + than + B”“as + 原级 + as”“the + 比较级 + of the two”等,能准确造句。3. 能运用比较级描述人或事物的差异,如比较两个人的外貌、性格,或两个城市的人口、气温等。过程与方法通过“情境导入—规则探究—练习巩固—迁移运用”的流程,引导学生主动归纳比较级规则,提升自主学习能力。2. 借助图片、表格、实例等直观素材,结合小组讨论、分层练习等活动,帮助学生理解并熟练运用比较级。情感态度与价值观让学生在比较人、事物的过程中,学会客观看待差异,培养理性分析能力。2. 通过结合生活实际(如比较城市、动物、自身与他人)运用语法知识,激发学生对英语语法学习的兴趣,体会语法的实用性。教学重难点教学重点形容词和副词比较级的构成规则(一般变化、多音节词变化、不规则变化)。比较级常用句型的理解与运用,尤其是“A + 比较级 + than + B”和“as + 原级 + as”。 (二)教学难点不规则比较级(如good→better、bad→worse)的记忆与正确运用。比较级修饰词(如much、a little、even)的恰当使用,以及“比较级 + and + 比较级”“The + 比较级, the + 比较级”等特殊句型的灵活运用。教学过程(一)热身与导入(Lead in & Review)——7分钟1.情境激活:以“成长变化”为话题,提问学生:“How have you changed over the past two years ”,引导学生从外貌(Appearance)、性格(Personality)、习惯(Habit)、特长(Strength)四个维度用英语回答,如:“_ I'm taller than I was two years ago.” - “I'm more outgoing than before.” - 教师将学生回答中的比较级词汇(taller、more outgoing)板书,自然引出“比较级”主题。复习回顾:展示课件中“外貌、性格、习惯、特长”相关词汇列表(如tall、quiet、get up early、play the piano),让学生快速认读,并尝试说出部分词的比较级,为后续学习规则做铺垫。设计意图:结合学生自身成长经历导入,贴近生活,激发学习兴趣;同时复习已有比较级知识,为新知识的学习搭建桥梁。语法呈现(Presentation)——15分钟 本环节围绕“比较级构成规则”和“常用句型”展开,结合课件3a内容,分步骤讲解:比较级等级概念引入(2分钟) - 教师通过简单例子讲解比较级的适用场景:“We use the comparative degree when we compare two people or things. For example, ‘Tom is taller than Mike.’,明确“两者比较用比较级”的核心概念,同时提及原级和最高级(简要说明“原级表同等程度,最高级表三者及以上比较”),让学生建立比较等级的整体认知。比较级构成规则讲解(8分钟)一般变化规则:结合课件图表和单词卡片,逐一讲解并举例:. 一般情况加-er:展示short→shorter、tall→taller、fast→faster,让学生跟读并举例(如long→longer)。(2). 以“辅音字母+y”结尾,变y为i加-er:以early→earlier为例,引导学生推导heavy→heavier、easy→easier。以e结尾加-r:以large→larger、late→later为例,让学生练习nice→nicer、fine→finer。 4. 重读闭音节(辅元辅结构)双写尾字母加-er:以big→bigger、fat→fatter、thin→thinner为例,通过拆解单词结构(如big:/b ɡ/,辅元辅)帮助学生理解规则,练习hot→hotter、red→redder。多音节词变化规则:展示colorful→more colorful、interesting→more interesting,说明“多音节词(三个及以上音节)和部分双音节词(如popular、beautiful)加more构成比较级”,让学生练习dangerous→more dangerous、important→more important。不规则变化规则**:通过“两好三坏、两多一少、一远一老”的口诀帮助学生记忆,如good/well→better、bad/badly→worse、many/much→more、little→less、far→farther/further,结合例句(如“He plays basketball better than me.”)加深理解,让学生分组朗读口诀和例句。规则口诀总结**:带领学生齐读课件中的比较级规则口诀,强化记忆:“比较级要变化,一般词尾加er。词尾若有哑音e,直接加r就可以。辅音字母若加y, 记得变y为i。一辅重读闭音节,末尾字母要双写。多、双音节有规律,词前加more就可以。3.比较级常用句型讲解(5分钟)as + 原级 + as”句型:结合例句“Emma works as hard as Ella.”,讲解“表示两者程度相同,译为‘和……一样’”,让学生造句(如“She is as tall as her sister.”)。“A + 比较级 + than + B”句型:结合例句“This year's festival is more colourful than last year's.”,讲解“表示两者比较,A比B更……”,强调“than后接比较对象”,让学生练习(如“The red pen is longer than the blue one.”)。 - **比较级修饰词:介绍much、a lot、a little、a bit、even、far等修饰词的用法,结合例句“He is much taller than me.”“This story is a little more interesting.”,说明“修饰词放在比较级前,不能用very、so修饰比较级”,让学生判断句子正误(如“He is very taller than me.”×)。 特殊句型:简要介绍“比较级 + and + 比较级”(如“The weather is getting warmer and warmer.”)、“The + 比较级, the + 比较级”(如“The harder you study, the better grades you will get.”)、“the + 比较级 + of the two”(如“She is the taller of the two girls.”),结合简单例句帮助学生理解基本含义。语法练习(Practice)——15分钟 本环节通过“基础练习—情境练习”分层巩固,对应课件3b、3c及拓展练习:1. 3b:句型填空练习(5分钟)任务1:学生独立完成课件3b的问答填空,如: Q: ______________________________ (you / serious / cousin) - A: No, I’m not. I am ___________ than he is. 任务2:教师邀请学生展示答案,讲解易错点(如“as serious as”的正确搭配、“less serious”的用法),并让学生分组朗读问答句,熟悉句型。2. 3c:城市比较练习(7分钟) - **任务1**:展示课件中广州和芝加哥的对比表格(人口、面积、降雨量、气温),发放小组任务单,让学生小组讨论,用方框中的词(large、small、much、warm、cool)和“than”完成句子,如: - “The population of Chicago is smaller than that of Guangzhou.” - “Guangzhou is warmer than Chicago in January.” 任务2:各小组推选代表分享答案,教师点评“比较对象一致性”(如“the population of A is... than that of B”),纠正表达错误(如避免“The population of Chicago is smaller than Guangzhou.”的错误)。3. 拓展练习:词形变化与选择(3分钟) - **词形变化**:让学生快速写出所给词的比较级(如well→better、heavy→heavier、interesting→more interesting),检验规则掌握情况。选择题**:完成课件中的选择题(如“This room is a bit ______ than that one. A. big B. bigger C. biger”),讲解易错选项(如“biger”的错误拼写),强化规则记忆。(四)总结与巩固(Summary & Consolidation)——5分钟知识梳理:教师结合板书和课件总结本节课核心内容: - 比较级构成规则(一般变化、多音节词变化、不规则变化),展示简洁的规则表格,让学生快速回顾。 - 比较级常用句型(“as + 原级 + as”“A + 比较级 + than + B”及特殊句型)和修饰词用法。 2. 快速检测:随机提问学生,如“good的比较级是什么?”“‘他跑得比我快’用英语怎么说?”,即时反馈掌握情况,针对薄弱点(如不规则变化、句型搭配)再次强调。作业布置(Homework)——分层设计必做(基础层): - 写出教材Exercise表格中10个形容词/副词的比较级,任选5个词各造1个比较级句子,巩固构成规则和基本用法。 - 用“as + 原级 + as”“比较级 + than”两种句型,各写3句话描述自己与同桌的3处相同点和3处不同点。选做(提升层): - 选择两种熟悉的动物,从体型、速度、习性等方面用5个比较级句子对比描述(如“The elephant is heavier than the tiger, but the tiger runs faster than the elephant.”)。 - 查找所在城市与另一座城市的人口、气温等数据,用比较级句型完成一段简短对比介绍(至少4句话)。教学反思(Reflecting) 1. 学生自评:课后让学生填写课件中的反思表格,从“比较级构成规则掌握”“比较级句型运用”“运用比较级描述差异”三个维度,选择“Very well/OK/Needs work”进行自评,了解自身学习情况。 2. 教师反思:记录课堂中学生的易错点(如不规则比较级混淆、修饰词使用不当),调整后续复习策略(如通过趣味口诀、情境练习强化薄弱点);同时关注学生在小组活动中的参与度,优化活动设计以提升互动效果。板书设计 Unit 3 Same or Different Section A(Grammar Focus 3a-3c)比较级构成规则 1. 一般变化: - 加-er:tall→taller, fast→faster - 变y为i加-er:early→earlier, heavy→heavier - 加-r:late→later, large→larger - 双写尾字母加-er:big→bigger, fat→fatter多音节词:加more:colorful→more colorful不规则变化: good/well→better; bad/badly→worse; many/much→more; little→less; far→farther/further比较级常用句型 1. as + 原级 + as:He is as hard as his brother. 2. A + 比较级 + than + B:This book is more interesting than that one.修饰词:much, a little, even(放比较级前)4. 特殊句型: - 比较级 + and + 比较级:warmer and warmer - The + 比较级, the + 比较级:The harder, the better - the + 比较级 + of the two:the taller of the two girls ```/ 让教学更有效 精品试卷 | 英语学科/ 让教学更有效 精品试卷 | 英语学科一、根据汉语提示完成句子1. Bill is ten years old. Mike is ten years old, too.(合并成一句)Bill is____ ___ ____Mike.2. Tom's pen is cheaper than Bill's. (近义词)Tom's pen isn't __ _________ __ Bill's.3. Mike is not as quiet as his brother.(近义词)Mike's brother is______ ___________ ____him.4. My ruler is longer than his.(近义词)His ruler is________ than________.5. Bill has fewer books than me.(近义词)My books______ ________than Bill's.二、用括号内所给词的适当形式填空:1.He plays Ping Pong ______ than his borther.(well)2.I am _______ than my mother. (heavy)3.This book is _______ than that one. (interesting)4. My friend is _______ than you.(tall)5.The boy runs as_________ as Jack.(fast)三、选择题1. Before you buy clothes, you should compare them ______ others.A. from B. on C. into D. with2. — I think English is ________ maths.— Yes, I think so.A. much important than B. so important asC. as important as D. as more important as3. Susan,the girl in red,is _______ at Chinese than her brother John.A. good B. better C. well D. best4. —Jim and I share ________ tastes and hobbies.—No wonder you take part in lots of meaningful social activities together.A. separate B. weak C. similar D. double5. The Tokyo Olympics will be held from July 23 to Aug 8. Chinese athletes (运动员) will _____ 155 events.A. take part in B. take care of C. take pride in D. pay attention to参考答案:一、单词默写(根据音标 / 语义填空)as old asas expensive asmore outgoing than4.shorter mine...5. are more二、用括号内所给词的适当形式填空1. better 2.heavier 3.more interesting 4.taller 5. fast三、选择题1-5: DCBCA/ 让教学更有效 精品试卷 | 英语学科 展开更多...... 收起↑ 资源列表 人教版八上Unit3 Same or Different SectionA (Grammar Focus 3a-3c)教学设计.docx 人教版新教材 八年级上册Unit 3 Same or Different SectionA (Grammar Focus 3a-3c).pptx 人教版新教材八年级上册Unit 3 Same or Different SectionA (Grammar Focus 3a-3c) 课堂练习.docx