
/ 让学习更有效 新课备课备考 | 英语学科 2026年春外研版(2024)七年级英语下册核心语法精讲精练 Unit 5 Amazing nature 核心语法:形容词和副词的比较等级 一、核心概念 1. 什么是比较等级? 英语中的形容词和副词在表示程度差异时,有三种基本形式: 等级 含义 示例 原级 描述事物本身的特征 Tom is tall.(汤姆高) 比较级 两者之间比较,“更……” Tom is taller than Jim.(汤姆比吉姆更高) 最高级 三者及以上比较,“最……” Tom is the tallest in his class.(汤姆是班上最高的) 二、比较级和最高级的构成 1. 规则变化———直、去、双、改、加”五字口诀 口诀 变化规则 例词 比较级 最高级 直 单音节词直接加-er/-est tall taller tallest 去 以不发音e结尾,去e加-er/-est nice nicer nicest 双 重读闭音节结尾,双写尾字母再加-er/-est big bigger biggest 改 辅音字母+y结尾,变y为i加-er/-est easy easier easiest 加 多音节词前加more/most important more important most important 特殊注意: 以-ly结尾的副词,除early外,通常加more/most构成比较级/最高级(如:slowly—more slowly—most slowly) 2. 不规则变化(必须熟记!) 原级 比较级 最高级 good/well better best bad/badly/ill worse worst many/much more most little less least far farther/further farthest/furthest old older/elder oldest/eldest 辨析要点: farther/farthest:指实际距离更远 further/furthest:指抽象程度更深(也可指距离) older/oldest:用于人或物,指年龄或新旧 elder/eldest:仅用于家庭成员的长幼 三、比较级的常用句型 1. 基本句型:A + 谓语 + 比较级 + than + B 类型 例句 形容词比较级 This box is heavier than that one. 副词比较级 She sings better than me. 2. 比较级的修饰语 修饰语 含义 例句 much / a lot / far ……得多 This movie is much more interesting than that one. a little / a bit 稍微…… This box is a little heavier than yours. even / still 甚至更…… He is even taller than his father. 3. 特殊句型 句型 结构 例句 越来越…… 比较级 + and + 比较级 The weather is getting warmer and warmer. 越……就越…… The + 比较级…, the + 比较级… The harder you work, the better you will do. 两者中较……的一个 the + 比较级 + of the two She is the taller of the two sisters. 四、最高级的常用句型 1. 基本句型:A + 谓语 + the + 最高级 + 比较范围 结构 例句 形容词最高级 Tom is the tallest in his class. 副词最高级 He runs (the) fastest of all. 注意:副词最高级前的the可以省略 2. 常见句型 句型 结构 例句 最……之一 one of the + 最高级 + 复数名词 Beijing is one of the largest cities in China. 第几最…… the + 序数词 + 最高级 The Yellow River is the second longest river in China. 特定范围 最高级 + in/of/among… She is the most careful among the girls. 五、原级比较:as…as 结构 1. 肯定形式:as + 原级 + as(和……一样) Jim is as tall as Tom.(吉姆和汤姆一样高) He runs as fast as his brother.(他和他哥哥跑得一样快) 2. 否定形式:not as/so + 原级 + as(不如……) Jim is not as tall as Tom.(吉姆不如汤姆高) He doesn't run so fast as his brother.(他跑得不如他哥哥快) 六、常见错误提醒 常见错误及纠正: 双重比较 This book is more cheaper than that one. This book is much cheaper than that one. 比较级与最高级混淆 Who is tallest, Tom or Mike Who is taller, Tom or Mike (两者用比较级 ... ...
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