Unit 1 语法专项课件——形容词副词比较级，the more...the more 2025-2026学年北师大版英语八年级上册

教学课件 北师大英语八年级上册 Unit1 语法专项——形容词/副词比较级、最高级及“The more..., the more...”结构 全解精讲+分层练习 1 学习目标 掌握形容词和副词比较级、最高级的构成规则，含规则与不规则变化 熟练运用比较级、最高级的核心句式，表达对比与程度 掌握“The more..., the more...”结构的用法，能正确造句 学会用修饰词强化比较级，区分易混句式用法 运用所学完成单选、填空、句型转换等多种题型 形容词/副词比较级 核心含义 比较级是形容词和副词的重要变形形式 核心用于两者之间的对比，表达“一方比另一方更……” 也可表动作或状态的“逐渐变化”，或两者“程度相当” 形容词比较级修饰名词，副词比较级修饰动词，用法分工明确 比较级规则变化（一）表格 词形特征 变化规则 例词（形/副） 单音节词 词尾+-er tall→taller；fast→faster 以-e结尾 词尾+-r nice→nicer；late→later 重读闭音节（辅元辅） 双写尾字母+-er big→bigger；hot→hotter 辅音+y结尾 变y为i+-er happy→happier；busy→busier 比较级 规则变化（二） 多音节词及部分双音节词，直接在原级前加more 形容词示例：popular→more popular；interesting→more interesting 副词示例：carefully→more carefully；quickly→more quickly 判断关键：双音节及以上，无特殊结尾，均用more+原级 比较级 不规则变化 核心词 不规则变化无固定规律，需单独记忆，为高频考点 核心高频词：good/well → better（更好的/地） 核心高频词：bad/badly → worse（更糟的/地）；many/much → more（更多的） 核心高频词：little → less（更少的）；far → farther/further（更远的） 比较级 核心句式1：A+比较级+than+B 基础句式，表“A比B更……”，than是核心标志词 形容词比较级：This book is more interesting than that one. 副词比较级：He runs faster than his brother. 注意：than后接代词时，用宾格形式，如She is taller than me. 比较级 核心句式2：比较级+and+比较级 表动作或状态“越来越……”，体现变化的趋势 单音节词直接用：The weather gets colder and colder. 多音节词用：more and more+原级，如It becomes more and more popular. 此句式无主语单复数变化，直接套用即可 比较级 核心句式3：as+原级+as/否定式 肯定式：as+原级+as，表“和……一样……”，中间必须用原级 示例：She is as tall as her sister. He runs as fast as Tom. 否定式：not as/so+原级+as，表“不如……”，as和so可互换 示例：This movie is not so interesting as that one. 比较级 拓展用法：修饰词强化程度 可在比较级前加修饰词，强调“……得多/一点” 常用修饰词：much, a lot, a little, a bit, even 示例：This room is much brighter than that one. He runs a little faster than me. “The more..., the more...”结构 核心含义 表两个变化之间的正相关关系，即“越……，就越……” 前半句是条件，后半句是结果，两者随彼此变化而变化 可用于形容词或副词比较级，是本单元重点特殊句式 结构固定，只需替换比较级部分，即可灵活运用 “The more..., the more...”结构 用法规则 固定公式：The+比较级+主语+谓语, the+比较级+主语+谓语 前半句用逗号与后半句隔开，首字母均大写 示例：The harder you work, the better grades you will get. The more books you read, the more knowledge you gain. 注意：前后句的谓语时态需根据语境保持逻辑一致 形容词/副词最高级 核心含义 最高级用于三者或三者以上的人/事物对比 表达“在某一特定范围内最……”，是程度的最高级 形容词最高级前必须加the，副词最高级前the可省略 比较范围是判断是否用最高级的关键，常用in/of引导 最高级规则变化（一）表格 词形特征 变化规则 例词（形/副） 单音节词 词尾+-est tall→tallest；fast→fastest 以-e结尾 词尾+-st nice→nicest；late→latest 重读闭音节（辅元辅） 双写尾字母+-est big→biggest；hot→hottest 辅音+y结尾 变y为i+-est happy→happiest；busy→busiest 最高级 规则变化（二）+不规则变化 多音节/部分双音节词，原级前加most，如popular→most popular 副词同理：carefully→most carefully，quickly→most quickly 不规则变化与比较级对应，需配套记忆： good/well→best；bad/badly→worst many/much→most；little→least；far→farthest/furthest 最高级 核心句式1：the+最高级+比较范围 比较范围常用in+大范围（in the class）、of+群体（of the three） 形容词最高级：This is the tallest building in the city. 副词最高级：He runs (the) fastest of all the boys. 注意：副词最高级前的the可加可不加，形容词必须加 最高级 核心句式2：one of the+最高级+复数名词 表“最……之一”，是高频写作句式，提升表达丰富度 结构中必须用复数名词，因“之一”体现数量大于一 示例：She is one of the most popular teachers in our school. It is one of the most interesting books I have read. 最高级 核心句式3：the+序数词+最高级+单数名词 表“第几最……”，用于具体排名的表达 序数词后接最高级，名词用单数，结构固定 示例：The Yellow River is the second longest river in China. This is the third tallest tree in the park. 最高级 拓展用法：比较级表最高级含义 句式：比较级+than+any other+单数名词，表“比其他任何一个都……” 此句式虽用比较级，实则表达最高级含义，无需加the 示例：He is taller than any other student in his class. =He is the tallest student in his class. 语法小练 单项选择 1.This park is ________ than the one near my home. A. beautiful B. more beautiful C. most beautiful D. the most beautiful 2.________ you practise, ________ you will play the piano. A. More; better B. The more; the better C. The more; best D. More; the better 3.He is one of ________ actors in this movie. A. the most famous B. more famous C. famous D. most famous B B A 4.The weather is getting ________ in summer. A. hot and hot B. hotter and hotter C. more hot and more hot D. the hottest 5.She doesn't study ________ her sister. A. as hard as B. as harder as C. so hard than D. so harder than 6.Which subject do you like ________, Chinese, Math or English? A. better B. good C. best D. the better B A C 7.The ________ he sleeps, the ________ he feels the next day. A. more; better B. most; best C. more; best D. most; better 8.This room is ________ larger than that one. A. many B. much C. so D. very 9.She is ________ than any other girl in her class. A. outgoing B. more outgoing C. the most outgoing D. much outgoing A B B 10.This is ________ interesting story I have ever heard. A. the most B. most C. more D. the more 11.He runs ________ in his school, so he wins the race. A. fast B. faster C. fastest D. the faster 12.The more you read, the ________ you will know. A. much B. more C. most D. many B C B 13.This problem is ________ than that one. A. much difficult B. more difficult C. most difficult D. the most difficult 14.She is the ________ careful student in our class. A. more B. much C. most D. very 15.They don't have ________ books as we do. A. as many B. so much C. as more D. so more B C A 语法小练 用所给词适当形式填空 1.The ________ (hard) you study, the ________ (good) grades you will get. 2.This is _____________________ (beautiful) flower in the garden. 3.He swims ________ (fast) than his friend. 4.The movie is becoming ________ and ________________ (popular). 5.She is not as ________ (tall) as her mother. harder better the most beautiful faster more more popular tall 6.This is one of ___________________ (important) lessons in this book. 7.The ________ (much) you exercise, the healthier you will be. 8.He is the ________ (clever) boy in his class. 9.She sings ________ (well) than any other girl in the school. 10.The weather is getting ________ and ________ (cold) in winter. the most important more cleverest better colder colder 语法小练 句型转换 1.Tom is taller than Jim.（改为同义句） Jim is ________ ________ _______ ________ Tom. 2.She is the most popular singer in our country.（改为同义句） She is ________ popular than ________ ________ singer in our country. 3.The more you eat, the fatter you will be.（对划线部分提问） ________ ________ you be if you eat more? not as tall as more any other How will 4.This book is more interesting than that one.（改为否定式同义句） That book is ________ ________ ________ this one. 5.He runs the fastest in his class.（对划线部分提问） ________ ________ he run in his class? 6.The room is big. The other room is bigger.（合并为一句） The other room is ________ ________ this one. less interesting than How does bigger than 7.She dances very well.（用“The more..., the more...”改写） The more she dances, ________ ________ she does it. 8.This is the best movie I have ever seen.（改为一般疑问句） ________ this the best movie you have ever seen? 9.He is as old as his brother.（改为否定句） He ________ ________ as old as his brother. the better Is is not 语法小练 根据汉语完成句子 1.你读的书越多，你的视野就越开阔。 The more books you read, ________ ________ your vision will be. 2.这是我去过的最美丽的城市。 This is the ________ ________ city I have ever been to. 3.他游泳不如他的同学好。 He doesn't swim ________ ________ ________ his classmates. 4.上海是中国最大的城市之一。 Shanghai is one of ________ ________ cities in China. 5.天气变得越来越暖和了。 The weather is getting ________ ________ ________. the wider most beautiful as well as the largest warmer and warmer 高频易错点 汇总 比较级和最高级混淆，两者对比用最高级，三者及以上用比较级 as...as中间用比较级，如as taller as，正确应为as tall as 多音节词变比较级直接加er，如interesting→interestinger 最高级前遗漏the，形容词最高级必须加，如most beautiful flower “The more..., the more...”结构遗漏the，如More you practise, better you are 不规则变化记错，如good→more good，bad→worse（正确） 语法辨析 比较级vs最高级 核心区别 比较级：两者对比，标志词than/比较级+and+比较级，无the（除句式） 最高级：三者及以上对比，标志词in/of/one of，形容词必须加the 比较级可表最高级含义（than any other），最高级不可表比较级含义 修饰词不同：比较级前加much/a little，最高级前加the/one of 单元核心 知识总结 比较级表两者对比，有规则/不规则变化，核心句式有than/as...as等 最高级表三者及以上对比，变化与比较级对应，前加the（形），有三大核心句式 The more..., the more...表正相关，结构为The+比较级+句子，前后用逗号隔开 比较级可加much等修饰，也可表最高级含义，注意区分易混句式和易错变形 教学课件 Unit1 语法专项——形容词/副词比较级、最高级及“The more..., the more...”结构 Thank you for listening! 34 $