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教学课件
沪教（牛津）英语八年级上册
Unit 3语法专项—— 形容词比较级&最高级
全解精讲+分层练习
学习目标
1.掌握原级、比较级、最高级的基本功能。
2.熟练掌握4类规则变化的拼写细节。
3.背熟5组不规则变化。
4.会用than / the / in / of / among。
5.掌握比较级 最高级互换。
基本定义
原级：只描述，不比较。
比较级：两者之间比，表示更……
最高级：三者及以上比，表示最……
标志词：than（比较级）；the + 范围（最高级）
规则变化1 — 一般单音节
一般情况：直接 + -er / -est
例: tall → taller → tallest, long → longer → longest
结尾不发音e：只 + -r / -st
nice → nicer → nicest
规则变化2 — 重读闭音节
结构：辅音 + 元音 + 辅音
变化：双写尾字母 + -er / -est
big → bigger → biggest
thin → thinner → thinnest
fat → fatter → fattest
规则变化3 — 辅音 + y
结尾：辅音字母 + y
变化：y → i + -er / -est
easy → easier → easiest
happy → happier → happiest
heavy → heavier → heaviest
规则变化4 — 多音节词
音节≥3 或部分双音节词
比较级：more + 形容词
最高级：most + 形容词
beautiful → more beautiful → most beautiful
expensive → more expensive → most expensive
不规则变化（必背）
good/well → better → best
bad/ill → worse → worst
many/much → more → most
little → less → least
far → farther/further → farthest/furthest
比较级核心句型
结构：A + be + 比较级 + than + B
含义：A 比 B 更……
例句：This phone is lighter than that one.
要点：看到than，一定用比较级
比较级修饰词（加强语气）
可放在比较级前：
much / a lot / even / still
例句：He is much taller than me.
例句：This computer is even faster.
比较级并列结构
比较级 + and + 比较级
含义：越来越……
单音节：taller and taller
多音节：more and more beautiful
最高级核心句型
结构：A + be + the + 最高级 + 范围
范围：in / of / among
例句：He is the tallest in the class.
要点：最高级前通常加 the
最高级不加 the 的情况
当前面有物主代词时，不加 the
my best friend（√）
my the best friend（×）
his fastest car（√）
in / of / among 用法
in + 地点/集体：in our class / in the world
of + 数量/全部：of the three / of all
among + 三者以上：among the students
比较级 最高级 互换（必考）
最高级 = 比较级 + than any other + 单数名词
例句：He is the tallest in the class.
= He is taller than any other student.
口诀：最高级变比较级，加than any other
易混点1
两者比较 → 比较级 + than 三者及以上 → the + 最高级
有than → 一定不用最高级 有范围 → 优先最高级
易混点2
单音节：用 -er / -est，不用 more taller（√）more tall（×）
多音节：用 more / most，不用 er more important（√）importanter（×）
易混点3
any other + 单数名词
any other student（√） any other students（×）
the other + 复数名词 the other students（√）
基础训练1 — 写出三级变化
high → ______________ → ______________
fine → ______________ → ______________
wet → ______________ → ______________
early → ______________ → ______________
careful → ______________ → ______________
higher
highest
finer
finest
wetter
wettest
earlier
earliest
more careful
most careful
基础训练2 — 不规则填空
good → ________________ → ________________
bad → ________________ → ________________
many → ________________ → ________________
little → ________________ → ________________
far → ________________ → ________________
better
best
worse
worst
more
most
less
least
farther
farthest
适当形式填空1
This story is ________________ (funny) than that one.
Winter is ________________ (cold) season of the year.
She is ________________ (happy) than before.
This is ________________ (exciting) movie I’ve seen.
He runs ________________ (fast) than his brother.
funnier
the coldest
happier
the most exciting
faster
适当形式填空2
This is ____________ (bad) restaurant in town.
It’s getting ____________ and ____________ (warm).
Which is ____________ (safe), plane or train
This bag is ____________ (heavy) than mine.
He is ____________ (good) at math than me.
the worst
warmer warmer
safer
heavier
better
单项选择
1. My room is ______ than yours.
A. clean B. cleaner C. the cleanest
2. She is ______ girl in our class.
A. quiet B. quieter C. the quietest
3. Which is ______, the elephant or the horse
A. strong B. stronger C. strongest
4.This is ______ book in the store.
A. cheap B. cheaper C. the cheapest
B
C
B
C
单项选择
1.The movie is ______ than I thought.
A. interesting B. more interesting C. most interesting
2. He is ______ than his sister.
A. busy B. busier C. the busiest
3. Among all the apps, this one is ______.
A. useful B. more useful C. the most useful
4. This dress is ______ of the three.
A. beautiful B. more beautiful C. the most beautiful
B
B
C
C
句型转换
1. This bike is new. That bike is newer.（合并）
That bike is ______ ______ this one.
2. He is the strongest boy.（同义句）
He is ___________ than ______ ______ boy.
3. This is the most useful tool.（同义句）
This tool is ________ ______ than ______ ______ tool.
4. The river is long. That river is longer.（合并）
That river is ______ ______ this one.
any other
more useful
any other
longer than
newer than
stronger
完成句子1
1. 英语比语文更有趣。
English is _________ _________ than Chinese.
2. 黄河是中国第二长河。
The Yellow River is _________ _________ _________ river in China.
3. 这是我吃过最好吃的蛋糕。
This is _________ _________ ___________cake I have ever eaten.
4. 他比班上任何其他学生都高。
He is taller than _________ _________ student in his class.
more interesting
the second longest
the most delicious
any other
课堂总结（一）
比较级：两者对比，用 than 变化：-er/-est；more/most；不规则
修饰：much / even / still 结构：比较级 + and + 比较级
课堂总结（二）
最高级：三者以上，用 the 范围：in / of / among
互换：最高级 = 比较级 + than any other
口诀：两者用比，三者用最
教学课件
Unit 3语法专项—— 形容词比较级&最高级
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