Unit 1 Same or Different? 语法专项课件-形容词和副词的原级、比较级课件(共30张PPT)-2025-2026学年鲁教五四制英语七年级下册

(共30张PPT)
教学课件
鲁教（五四制）英语七年级下册
Unit1 语法专项—— 形容词和副词的原级、比较级
全解精讲+分层练习
学习目标
1. 掌握形容词、副词的基本定义及用法区别
2. 熟练掌握原级（as...as.../not as/so...as...）的结构、易错点
3. 牢记比较级的规则变化、不规则变化及单元易错点
4. 掌握比较级的补充用法（a little/much修饰等）
语法基础：形容词（Adj.）和副词（Adv.）
形容词：修饰名词或代词（如tall, outgoing, lazy）
位置：通常放在名词前，或be动词/系动词（is, feel）后
副词：修饰动词、形容词（如fast, well, loudly）
位置：通常放在动词后，或形容词前
核心：本单元重点掌握两者的原级和比较级用法
原级比较——核心含义与标志
含义：表示“和……一样……”（肯定）或“不如……”（否定）
强调：两者程度相同，或差距较小，不突出优劣
核心标志词：as...as...（肯定）、not as/so...as...（否定）
注意：比较对象必须一致（人比人、物比物，不能混淆）
原级比较——基本结构（肯定式）
1. 形容词原级肯定结构：主语 + be + as + 原级 + as + 比较对象
例句：My best friend is as outgoing as me.
2. 副词原级肯定结构：主语 + 实义动词 + as + 原级 + as + 比较对象
例句：She sings as well as her sister.
3. 关键：as和as中间，必须用形容词或副词的原级
原级比较——基本结构（否定式）
1. 形容词原级否定结构：主语 + be + not as/so + 原级 + as + 比较对象
例句：This music festival is not as interesting as last year’s.
2. 副词原级否定结构：主语 + 实义动词 + not as/so + 原级 + as + 比较对象
例句：I don’t get up as early as my mother.（我起床没有我妈妈早）
3. 易错：否定式中as和so可互换，not不可遗漏
原级比较——高频易错点（必记）
1. 错误：as taller as / as more outgoing as
正确：as tall as / as outgoing as（中间用原级）
2. 错误：He is as tall as her sister’s height.
正确：He is as tall as her sister.（比较对象一致）
3. 错误：I am not so tall than him.
正确：I am not so tall as him.（否定不用than）
4. 口诀：as间用原级，比较要同类，否定as/so换，not不能忘
比较级比较——核心含义与标志
1. 含义：表示“比……更……”，强调两者之间的程度差异
2. 核心标志词：than（比），出现than必用比较级
重点：本单元核心难点，需重点掌握变化规则和句式
分类：形容词比较级（修饰名词）、副词比较级（修饰动词）
例句：He is taller than his brother.（他比他弟弟高）
比较级比较——基本结构
1. 形容词比较级结构：主语 + be + 形容词比较级 + than + 比较对象
例句：Tom is taller than his friend.（汤姆比他的朋友高）
2. 副词比较级结构：主语 + 实义动词 + 副词比较级 + than + 比较对象
例句：She runs faster than me.（她跑得比我快）
3. 补充：than后可接人称代词宾格（me, him, her）或名词
比较级变化——规则变化（1）
1. 一般情况：直接在词尾加-er
示例：tall→taller, fast→faster, early→earlier
例句：Lucy runs faster than Lily.（露西跑得比莉莉快）
2. 以不发音e结尾：直接在词尾加-r
示例：late→later, nice→nicer（拓展）
例句：She arrives later than me.（她到得比我晚）
比较级变化——规则变化（2）
1. 辅+元+辅结尾（重读闭音节）：双写尾辅音加-er
示例：big→bigger, hot→hotter（拓展）
例句：My bag is bigger than yours.（我的包比你的大）
2. 辅音+y结尾：变y为i，再加-er
示例：lazy→lazier, funny→funnier
例句：He is lazier than his brother.（他比他弟弟懒）
比较级变化——规则变化（3）
1. 多音节词（3个及以上音节）：在词前加more
示例：outgoing→more outgoing, hard-working→more hard-working
例句：Lucy is more outgoing than Lily.（露西比莉莉外向）
2. 补充：部分双音节词也加more（如beautiful→more beautiful）
3. 易错：outgoing不能直接加-er，必须用more修饰
比较级变化——单元易错点（重点）
1. shy→shyer（不用more shy，特殊双音节词）
例句：She is shyer than her deskmate.（她比她同桌害羞）
2. loud（adj.）→louder；loudly（adv.）→more loudly
3. funny优先用funnier，不用more funny
4. early→earlier（不用more early，属于一般变化）
5. 牢记：这些易错点是单元考试高频考点
比较级变化——不规则变化
原级（形/副） 比较级 备注
good / well better 形/副通用，well修饰动词
bad / badly worse 形/副通用，bad修饰名词
many / much more 修饰可数/不可数名词，表“更多”
little less 修饰不可数名词，表“更少”
比较级变化——不规则变化
1. far→farther / further
farther：侧重“距离更远”
further：侧重“程度更深”
例句：My home is farther from school than hers.
2. old→older / elder
elder：仅修饰家人（elder sister/brother）
older：可用于人或物，表“年龄大/更旧”
例句：His elder sister is older than him.
比较级补充用法
1. 程度副词修饰比较级：a little（一点）、much（得多）、even（甚至）
例句1：She is a little taller than me.（她比我高一点）
例句2：He works much harder than before.（他比以前努力得多）
2. 比较级省略：当比较对象明确时，可省略后面的动词
例句：She sings better than me.（省略I sing）
3. 注意：very、too不能修饰比较级
原级vs比较级 核心辨析
句式类型 核心标志词 关键规则 例句
原级肯定 as...as... 中间用原级 They are as hard-working as each other.
原级否定 not as/so...as... 不用more...than He is not as outgoing as his friend.
比较级 than 用比较级形式 She dances better than her sister.
辨析易错点——避免混淆（重点）
1. 错误：He is more tall than me. → 正确：He is taller than me.（单音节词直接加-er）
2. 错误：She is as better as her sister. → 正确：She is as good as her sister.（原级用原词）
3. 错误：This book is not more interesting than that one.（否定不用more...than）正确：This book is not as interesting as that one.
专项练习1——词形转换（ 比较级）
1. fast ____________ 2. lazy____________
3. outgoing __________________ 4. good____________
5. early ____________ 6. funny____________
7. hard-working__________________ 8. loudly____________
faster
lazier
more outgoing
better
earlier
funnier
more hard-working
more loudly
专项练习2——单项选择
1. My sister is ___________ than me. She likes talking with people.
A. shyer B.shy C. more shy D. the shyer
2. This story is ___________ interesting than the last one.
A. much B. more C. very D. as
3. He plays the guitar ___________ his brother. They both play well.
A. as good as B. as well as C. better than D. more well than
4. She gets up ___________ than me every morning.
A. early B. earlier C. more early D. earliest
A
B
B
B
专项练习3——单项选择
1. — Is Lucy ___________ than Lily — No, she isn’t. She is as lazy as Lily.
A. lazy B. lazier C. more lazy D. the laziest
2. He runs ___________ than his deskmate. He is the fastest in our class.
A. fast B. faster C. more fast D. fastest
3. My best friend is ___________ hard-working than me.
A. more B. much C. little D. a little
4. — Do you sing ______ than your sister — No, I sing as _________ as her.
A. better; good B. good; better C. better; well D. well; better
B
B
A
C
专项练习4——句型转换
1. Tom is tall. Jim is taller.（用than合并）
Jim is ___________ ___________ Tom.
2. She sings well. Her sister sings well too.（用as...as...合并）
She sings ___________ ___________ ___________ her sister.
3. Lucy is outgoing. Lily is more outgoing.（用not as...as...合并）
Lucy is ___________ ___________ ___________ ___________ Lily.
4. He gets up early. I get up earlier.（同义句）
I get up ___________ ___________ him.
taller than
as well as
not as outgoing as
earlier than
专项练习5——句型转换
1. My brother is lazy. My sister is lazier.（同义句）
My brother is _________ _________ _________ _________my sister.
2. She is a little shy. Her deskmate is very shy.（合并）
Her deskmate is ___________ ___________ than her.
3. This book is boring. That book is more boring.（同义句）
This book is ________ ___________ ___________ ______than that one.
4. They are hard-working. We are as hard-working as them.（合并）
We are ___________ ___________ ___________ them.
not as lazy as
much shyer
not as boring as
as hard-working as
专项练习6——补全句子
1. 我的朋友和我一样勤奋。
My friend is ___________ ___________ ___________ me.
2. 莉莉比露西更有趣。
Lily is ___________ ___________ Lucy.
3. 他弹钢琴比我好。
He plays the piano ___________ ___________ me.
4. 我没有我的妈妈起床早。
I don’t get up ___________ ___________ ___________ my mother.
as hard-working as
funnier than
better than
as early as
专项练习7——补全句子
1. 这次的活动比上次的更多。
There are ___________ ___________ than last time.
2. 她比她的妹妹高一点。
She is ___________ ___________ ___________ than her sister.
3. 我的同桌比我更认真。
My deskmate is ___________ ___________ than me.
4. 他的英语比我的好得多。
His English is ___________ ___________ than mine.
more activities
a little taller
more serious
much better
专项练习8——单句改错
1. This is as taller as that one.
改正：________________________________
2. He is more outgoing than me sister.
改正：________________________________
3. She runs more fast than her brother.
改正：________________________________
4. I am not so hard-working than my deskmate.
改正：________________________________
5. His elder brother is more old than him.
改正：________________________________
taller→tall
me→my
more fast→faster
than→as
more old→older
专项练习9——情景对话 根据对话内容，用原级或比较级补全句子：
1. — How is your new schoolbag
— It’s nice. It’s ___________ (big) than my old one.
2. — Is your English teacher outgoing
— Yes, she is. She is _______________ (outgoing) than my math teacher.
3. — Do you get up early every day
— Yes, but my father gets up ___________ (early) than me.
4. — Which is ___________ (good), this book or that book
— This one. It’s more interesting.
bigger
more outgoing
earlier
better
核心知识点回顾（1）
1. 原级核心：as...as...（肯定）、not as/so...as...（否定），中间用原级
2. 比较级核心：than为标志，掌握5类规则变化和6个不规则变化
3. 易错点1：shy→shyer、early→earlier，不用more修饰
4. 易错点2：比较对象必须一致，否定原级不用more...than
5. 补充：a little/much/even可修饰比较级，very不可
核心知识点回顾（2）
1. 形容词vs副词：形容词修饰名词，副词修饰动词/形容词
2. 不规则变化必背：good/well→better；bad/badly→worse等
3. far/old的特殊变化：farther（距离）、elder（家人）
4. 句型转换关键：原级与比较级的互换，牢记固定结构
5. 做题技巧：先看标志词（as...as..., than），再判断用原级还是比较级
教学课件
Unit1 语法专项—— 形容词和副词的原级、比较级
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