内容正文:
人教版八年级英语上册 Unit 4 Amazing Plants and Animals
教师版讲义 · 全2讲
形容词/副词最高级 · 六层认知深度递进
第1讲 最高级的"变形密码"——从词形变化到句式建构
教学时长:120分钟(2课时) | 授课对象:八年级学生 | 课型:语法建构课
核心问题链:如何比较三个及以上事物?→ 形容词/副词的最高级怎么变?→ 最高级句式怎么用?→ 比较级和最高级如何转换?
模块一 课前诊断(10分钟)| 分值:15分
1.1 热身激活(3分钟)
判断下列句子是比较级还是最高级,将答案写在括号内。
1. Tom is taller than Mike. ( )
1. Tom is the tallest boy in his class. ( )
1. She runs faster than her brother. ( )
1. She runs fastest among all the girls. ( )
1. This is the most interesting book I have ever read. ( )
核心追问:比较级和最高级有什么区别?分别用于什么情况?
答案: 1. 比较级 2. 最高级 3. 比较级 4. 最高级 5. 最高级
解析: 比较级用于两者之间的比较,标志词是 than;最高级用于三者及以上的人或事物之间的比较,标志词是 in / of / among。判断第一步:找比较范围关键词。有 than → 比较级;有 in / of / among 或 ever 从句 → 最高级。核心区别在于比较对象的数量——两者用比较级,三者及以上用最高级。
1.2 诊断测试(7分钟)
一、写出下列形容词/副词的最高级(每题1分,共10分)
1. tall → the tallest。解析:单音节词,最高级直接加 -est。单音节词词尾直接加 -est。
1. happy → the happiest。解析:辅音字母 + y 结尾,变 y 为 i 再加 -est。口诀:"辅音+y,变 y 为 i 再加 est"。
1. big → the biggest。解析:重读闭音节且末尾只有一个辅音字母,双写该辅音字母再加 -est。判断三步法:第一步,big 是单音节(自然重读);第二步,结尾是"一个元音字母 i + 一个辅音字母 g";第三步,满足条件 → 双写 g → biggest。
1. beautiful → the most beautiful。解析:多音节词(三个及以上音节)不能加 -est,必须在原级前加 most。beautiful 有三个音节(beau-ti-ful)。
1. good / well → the best。解析:不规则变化。good(形容词)和 well(副词)的最高级都是 best。
1. fast → the fastest。解析:单音节副词,最高级加 -est。fast 既是形容词也是副词,最高级都是 fastest。
1. heavy → the heaviest。解析:辅音字母 + y 结尾,变 y 为 i 加 -est。
1. thin → the thinnest。解析:重读闭音节,双写 n 再加 -est。
1. bad / badly → the worst。解析:不规则变化。bad(形容词)和 badly(副词)的最高级都是 worst。
1. many / much → the most。解析:不规则变化。many(修饰可数名词)和 much(修饰不可数名词)的最高级都是 most。
二、单项选择(每题1分,共5分)
1. Tom is _______ boy in his class.
A. the tallest
B. a taller
C. tallest
D. the taller
1. She is _______ girl in the school.
A. the most beautiful
B. a most beautiful
C. most beautiful
D. more beautiful
1. He runs _______ in his class.
A. fastest
B. the fastest
C. the faster
D. faster
1. This is one of _______ I have ever read.
A. the most interesting book
B. the most interesting books
C. a most interesting book
D. most interesting books
1. Who is _______, Tom, Jack or Mike?
A. the taller
B. the tallest
C. tallest
D. tall
答案: 1. A 2. A 3. A 4. B 5. B
详细解析:
第1题 答案:A "in his class"表示三者及以上范围,用最高级。tall 是单音节词,最高级加 -est。形容词最高级前必须加 the,所以选 the tallest。干扰项分析: C(tallest)缺少定冠词 the,形容词最高级作定语时 the 不可省略;B(a taller)是比较级且冠词使用错误,比较级前不加 a;D(the taller)是比较级结构,与"in his class"不匹配。
第2题 答案:A "in the school"表示范围,用最高级。beautiful 是多音节词,最高级为 the most beautiful。干扰项分析: C(most beautiful)缺少定冠词 the;D(more beautiful)是比较级;B(a most beautiful)中 a 使用不当,最高级前用 the 而非 a。
第3题 答案:A "in his class"表示三者及以上范围,用最高级。fast 是单音节副词,最高级加 -est。副词最高级前的 the 可以省略,所以 fastest 和 the fastest 均可。本题选项中只有 fastest,故选 A。干扰项分析: B(the fastest)如果作为答案也不算错,但本题只有一个正确选项;C(the faster)是比较级;D(faster)是比较级,与范围标志不符。
第4题 答案:B "one of the + 最高级 + 复数名词"是固定结构,表示"最……的……之一"。句意:这是我读过的最有趣的书之一。干扰项分析: A(the most interesting book)名词用单数,one of 后必须接复数名词;C(a most interesting book)结构错误;D(most interesting books)缺少 the。
第5题 答案:B 三者比较(Tom, Jack, Mike)用最高级,形容词最高级前加 the。干扰项分析: A(the taller)是比较级,用于两者比较;C(tallest)缺少 the,形容词最高级在句中作表语时 the 不可省略;D(tall)是原级,无法体现三者比较。
模块二 课堂精讲(80分钟)
2.1 认知重构导入——"最高级"的思维模型(5分钟)
核心问题:最高级到底在表达什么?
最高级不是比较级的简单延伸,而是表达"在某个群体中,某事物在某维度上达到了极致"。
最高级的三要素:
1. 比较的对象——必须有三个及以上的主体(A, B, C...)
1. 比较的维度——身高、速度、重量、美丽程度等
1. 比较的范围——in(地点/群体)/ of(同类事物)/ among(群体)
最高级的核心公式:
形容词最高级:A + be + the + 最高级 + (名词) + in/of/among + 范围
副词最高级:A + 实义动词 + (the) + 最高级 + in/of/among + 范围
2.2 最高级的"变形密码"——规则变化与不规则变化(15分钟)
核心问题:什么时候加 -est?什么时候加 most?最高级和比较级的变形规则有什么联系?
2.2.1 规则变化"五法则"
法则
适用条件
变法
比较级示例
最高级示例
法则一
单音节词和部分双音节词
加 -est
taller
tallest
法则二
以不发音 e 结尾
加 -st
nicer
nicest
法则三
辅音字母 + y 结尾
y→i 加 -est
happier
happiest
法则四
重读闭音节单辅音结尾
双写辅音 + -est
bigger
biggest
法则五
多音节词和部分双音节词
most + 原级
more beautiful
most beautiful
核心规律:最高级的词形变化规则与比较级完全平行,只是将 -er 替换为 -est,将 more 替换为 most。掌握比较级的变化规则后,最高级的变化只需一步类推。
法则四深度解析——重读闭音节判断三步法:
1. 单词有几个音节?——big 是单音节(自然重读)
1. 结尾是不是"一个元音字母 + 一个辅音字母"?——big 结尾是 i(元音)+ g(辅音)
1. 满足条件 → 双写末尾辅音字母 + -est → biggest
课堂快速判断:
单词
是否重读闭音节?
最高级
hot
是(h-o-t)
hottest
thin
是(th-i-n)
thinnest
fat
是(f-a-t)
fattest
wet
是(w-e-t)
wettest
nice
否(以 e 结尾)
nicest
2.2.2 不规则变化——"特别记忆组"
原级
最高级
词性
记忆口诀
good
best
形容词
好→最好
well
best
副词
好地→最好
bad
worst
形容词
坏→最坏
badly
worst
副词
坏地→最坏
many
most
形容词(可数)
多→最多
much
most
形容词(不可数)
多→最多
little
least
形容词
少→最少
far
farthest / furthest
形容词/副词
远→最远
farthest 与 furthest 的区别: farthest 仅指具体距离上的"最远";furthest 既可指具体距离,也可指抽象程度的"最大程度"。例如:Who can jump the farthest?(谁跳得最远?)This is the furthest development in technology.(这是技术上的最大进展。)
语音意识训练(教师朗读稿):
原级
发音
最高级
发音变化说明
big
/bɪɡ/
biggest
/ˈbɪɡɪst/ —— 双写 g 后增加了 /ɪst/
happy
/ˈhæpi/
happiest
/ˈhæpiɪst/ —— y 变 i 后加 /ɪst/
fast
/fɑːst/
fastest
/ˈfɑːstɪst/ —— 加 /ɪst/
good
/ɡʊd/
best
/best/ —— 完全不同的词形
2.2.3 形容词最高级 vs 副词最高级(关键对比)
对比维度
形容词最高级
副词最高级
修饰对象
名词(人或事物)
动词(动作或状态)
句中位置
名词前 或 系动词后
动词后 或 句末
定冠词 the
必须加
可省略
例句
She is the most careful student.
She works (the) most carefully.
判断口诀: "形修名词副修动,形必加 the 副可空。"
例题1 用所给词的正确形式填空:
1. Mount Qomolangma is the _______ (high) mountain in the world.
答案:highest
解析:"in the world"表示三者及以上范围,用最高级。high 是单音节词,最高级加 -est。注意:形容词最高级前必须加 the。
1. Among all the students, Tom runs _______ (fast).
答案:(the) fastest
解析:"Among all the students"表示三者及以上范围,用最高级。fast 是单音节副词,最高级加 -est。副词最高级前 the 可省略。
1. This is the _______ (bad) day I have ever had.
答案:worst
解析:"I have ever had"表示"我曾经有过",暗示三者及以上范围,用最高级。bad 是不规则变化,最高级为 worst。
1. She is one of the _______ (popular) teachers in our school.
答案:most popular
解析:"one of the + 最高级 + 复数名词"固定结构。popular 是多音节词,最高级加 the most。
例题2 写出最高级:
1. early → earliest。解析:辅音字母 + y 结尾,变 y 为 i 加 -est。early 既是形容词也是副词。
1. carefully → most carefully。解析:-ly 结尾的多音节副词,最高级加 most。
1. badly → worst。解析:不规则变化。
1. hot → hottest。解析:重读闭音节,双写 t 加 -est。
2.3 最高级的"句式建构"——六大核心句型(20分钟)
2.3.1 句型一:A + be + the + 形容词最高级 + in/of/among + 范围
功能:表示"在某范围内,A 是最……的"。
公式:A + be + the + 形容词最高级 + (名词) + in/of/among + 范围
例句:The blue whale is the largest animal in the world.
注意:in + 地点/群体(in the world, in our class);of + 同类事物(of all, of the three);among + 群体(among the students)。
例题3 The cheetah is _______ land animal.
A. the fastest
B. a fastest
C. the faster
D. fastest
答案:A 解析:根据语境"猎豹是陆地上跑得最快的动物",虽然没有明确的范围词,但"land animal"暗示了"所有陆地动物"这一范围,用最高级。fast 是单音节词,最高级加 -est。形容词最高级前加 the。干扰项分析: D(fastest)缺少 the;C(the faster)是比较级;B(a fastest)冠词使用错误。
2.3.2 句型二:A + 实义动词 + (the) + 副词最高级 + in/of/among + 范围
功能:表示"在某范围内,A 做得最……"。
公式:A + 实义动词 + (the) + 副词最高级 + in/of/among + 范围
例句:The cheetah runs (the) fastest of all land animals.
注意:副词最高级前的 the 可以省略,这是与形容词最高级的关键区别。
例题4 She dances _______ in her class.
A. the most beautifully
B. more beautifully
C. most beautiful
D. beautifully
答案:A 解析:"in her class"表示范围,用最高级。修饰动词 dances 须用副词 beautifully,最高级为 most beautifully。副词最高级前 the 可省略,但选项中 A 提供了 the most beautifully,亦正确。干扰项分析: C(most beautiful)是形容词,不能修饰动词;B(more beautifully)是比较级,与范围不符;D(beautifully)是原级。
2.3.3 句型三:one of the + 最高级 + 复数名词 + 范围
功能:表示"在某范围内,A 是最……的之一"。
公式:A + be + one of the + 最高级 + 可数名词复数 + in/of + 范围
例句:Bamboo is one of the most useful plants in China.
注意:最高级前必须加 the;名词必须用复数形式;主语是单数时,谓语用单数(is)。
例题5 This is one of _______ in our city.
A. the tallest building
B. the tallest buildings
C. a tallest building
D. tallest buildings
答案:B 解析:"one of the + 最高级 + 复数名词"固定结构。句意:这是我们城市最高的建筑之一。干扰项分析: A(the tallest building)名词用单数,one of 后必须接复数名词;C(a tallest building)冠词和名词数均错误;D(tallest buildings)缺少 the。
2.3.4 句型四:the + 序数词 + 最高级 + 名词 + 范围
功能:表示"在某范围内,A 是第几最……的"。
公式:A + be + the + 序数词 + 最高级 + 名词 + in/of + 范围
例句:The Yellow River is the second longest river in China.
注意:序数词(first, second, third)放在最高级前面,最高级前仍然有 the。
例题6 The building is the _______ in our city.
A. third taller
B. three tallest
C. third tallest
D. three taller
答案:C 解析:"the + 序数词 + 最高级"结构。third 是序数词,tallest 是最高级。句意:这座建筑是我们城市第三高的。干扰项分析: A(third taller)比较级与序数词不能搭配;B(three tallest)基数词不能代替序数词;D(three taller)双重错误。
2.3.5 句型五:Which/Who + be/动词 + the + 最高级,A, B or C?
功能:在三个及以上的人或事物中选择,询问"哪个最……"。
公式:Which/Who + be/动词 + (the) + 最高级, A, B or C?
例句:Which animal runs the fastest, the cheetah, the lion or the horse?
注意:选择项用 or 连接,通常是三个选项(也可以是三个以上)。
例题7 _______ is the most difficult, physics, chemistry or biology?
A. What
B. Which
C. Who
D. Whose
答案:B 解析:在三个学科中选择用 which。句意:物理、化学和生物,哪一科最难?干扰项分析: A(What)用于无范围限定的提问;C(Who)用于人;D(Whose)用于询问所属关系。
2.3.6 句型六:比较级表最高级(转换句型)
功能:用比较级的形式表达最高级的含义。
三种转换方式:
方式
结构
例句
方式一
比较级 + than any other + 单数名词
He is taller than any other student in his class.
方式二
比较级 + than all the other + 复数名词
He is taller than all the other students in his class.
方式三
No one/Nothing + 比较级 + than
No one in his class is taller than him.
例题8 Tom is the tallest boy in his class.(改为同义句)
A. Tom is taller than any other boy in his class.
B. Tom is taller than any boys in his class.
C. Tom is taller than all boys in his class.
D. Tom is the taller than other boy.
答案:A 解析:最高级转换为比较级用"比较级 + than any other + 单数名词"。A 正确。干扰项分析: B(any boys)没有 other,会包括 Tom 自己;C(all boys)同样没有排除自身;D(the taller than other boy)语法错误,且 other 后应接单数名词 any other boy。
自检清单核对(模块二例题):
例题3选项:A/B/C/D 独立设计 ✓
例题4选项:与例题3完全不同 ✓
例题5选项:独立设计 ✓
例题6选项:独立设计 ✓
例题7选项:独立设计 ✓
例题8选项:独立设计 ✓
答案连续性:A, A, B, C, B, A — 不连续重复 ✓
2.4 比较级与最高级的"转换逻辑"(10分钟)
核心规律:比较级和最高级可以相互转换,表达相同或相近的语义。
最高级原句
比较级转换
语义关系
Tom is the tallest in his class.
Tom is taller than any other student in his class.
同一范围比较,排除自身
She is the most beautiful girl in the school.
She is more beautiful than any other girl in the school.
同一范围比较,排除自身
He runs the fastest of all.
He runs faster than any other student.
同一范围比较,排除自身
This is the most interesting book.
No other book is as interesting as this one.
用否定比较级表达最高级
转换三步法:
1. 识别最高级的比较范围(in/among/of)
1. 确定"排除自身"的逻辑(any other / all the other / No one else)
1. 用比较级 + than 结构重新表达
例题9 按要求转换句子:
1. The blue whale is the heaviest animal in the world.(改为比较级)
答案:The blue whale is heavier than any other animal in the world.
解析:最高级转换为比较级,用"比较级 + than any other + 单数名词"结构。heaviest → heavier,注意比较对象对调隐含逻辑。
1. No one in his class is taller than Tom.(改为最高级)
答案:Tom is the tallest (student) in his class.
解析:"No one + 比较级"结构转换为最高级。否定比较级相当于最高级的含义。
2.5 课堂练习(15分钟)| 分值:20分
A 层·识记层(5分钟)——写出最高级
写出下列形容词/副词的最高级:
1. small → the smallest。解析:单音节词,直接加 -est。
1. easy → the easiest。解析:辅音字母 + y 结尾,变 y 为 i 加 -est。
1. fat → the fattest。解析:重读闭音节,双写 t 加 -est。
1. carefully → most carefully。解析:-ly 结尾的多音节副词,加 most。
1. little → the least。解析:不规则变化。
1. far → the farthest / the furthest。解析:不规则变化,两种形式均可。
1. friendly → the friendliest / the most friendly。解析:双音节词,两种形式均可。
1. wet → the wettest。解析:重读闭音节,双写 t 加 -est。
B 层·理解层(5分钟)——单项选择
1. Which is _______, the sun, the moon or the earth?
A. the biggest
B. biggest
C. the bigger
D. bigger
1. The Yangtze River is one of _______ in the world.
A. longest river
B. the longest river
C. the longest rivers
D. a longest river
1. She is _______ than any other girl in her class.
A. the taller
B. tallest
C. more tall
D. taller
1. He runs _______ among all the boys.
A. the faster
B. fastest
C. more fast
D. fast
1. This is _______ film I have ever seen.
A. the most interesting
B. a most interesting
C. most interesting
D. the more interesting
答案: 1. A 2. C 3. D 4. B 5. A
详细解析:
第1题 答案:A 三者比较(sun, moon, earth)用最高级,形容词最高级前加 the。干扰项分析: B(biggest)缺少 the;C(the bigger)是比较级,用于两者比较;D(bigger)是比较级且缺少冠词。
第2题 答案:C "one of the + 最高级 + 复数名词"固定结构。最高级前加 the,名词用复数 rivers。干扰项分析: A(longest river)缺少 the 且名词用单数;B(the longest river)名词用单数;D(a longest river)冠词错误。
第3题 答案:D "than any other + 单数名词"是比较级结构,语义上接近最高级。干扰项分析: A(the taller)比较级前不加 the;B(tallest)是最高级,不能与 than 搭配;C(more tall)tall 是单音节词,比较级应是 taller 而非 more tall。
第4题 答案:B "among all the boys"表示范围,用最高级。副词最高级前 the 可省略。干扰项分析: A(the faster)是比较级;C(more fast)fast 是单音节词,比较级应是 faster;D(fast)是原级。
第5题 答案:A "I have ever seen"表示"我看过的所有电影",用最高级。形容词最高级前加 the。干扰项分析: B(a most interesting)冠词错误,最高级前用 the;C(most interesting)缺少 the;D(the more interesting)是比较级。
C 层·应用层(5分钟)——完形填空(原创题)
素材来源:自编题,素材基于 2026 年"校园植物角评选"活动背景。
Last month, our school had a "Best Plant Corner" competition. Each class planted different plants. Our class grew some sunflowers. They were the _______ (1) plants in our school. Some grew up to 3 meters!
Class 2 grew some roses. They were the _______ (2) flowers of all. Many teachers came to take photos. Class 3 had a small garden with moss. Moss is one of the _______ (3) plants on Earth. It can live for thousands of years.
Our science teacher said, "Every plant is special in its own way. Sunflowers are the tallest. Roses are the most beautiful. Moss is the oldest. But the _______ (4) thing is that all plants need our care. The more you take care of them, the _______ (5) they will grow."
I think our school is the most beautiful place in spring!
1. A. the tallest B. tallest C. taller D. tall
1. A. most beautiful B. the most beautiful C. more beautiful D. beautiful
1. A. the oldest B. oldest C. older D. old
1. A. most important B. more important C. the most important D. important
1. A. the best B. best C. good D. better
答案: 1. A 2. B 3. A 4. C 5. D
详细解析:
第1题 答案:A "in our school"表示范围,用最高级。tall 是单音节词,最高级 tallest。形容词最高级前必须加 the。干扰项分析: B(tallest)缺少 the;C(taller)是比较级;D(tall)是原级。
第2题 答案:B "of all"表示范围,用最高级。beautiful 是多音节词,最高级为 the most beautiful。干扰项分析: A(most beautiful)缺少 the;C(more beautiful)是比较级;D(beautiful)是原级。
第3题 答案:A "one of the + 最高级 + 复数名词"结构。old 是单音节词,最高级 oldest。注意:oldest 前必须有 the。干扰项分析: B(oldest)缺少 the;C(older)是比较级;D(old)是原级。
第4题 答案:C "the + 最高级 + 名词"结构,表示"最重要的事情"。important 是多音节词,最高级为 the most important。干扰项分析: A(most important)缺少 the;B(more important)是比较级;D(important)是原级。
第5题 答案:D "the + 比较级,the + 比较级"结构。good→better。句意:你越照顾它们,它们长得越好。干扰项分析: A(the best)是最高级,不能用于 the more...the more 结构;B(best)缺少 the 且是最高级;C(good)是原级。
2.6 课堂精讲反馈(5分钟)
重点讲解内容:
1. 最高级的规则变化"五法则"——加 -est / 加 -st / 变 y 为 i 加 -est / 双写加 -est / most + 原级
1. 形容词最高级与副词最高级的区别——形修名词副修动,形必加 the 副可空
1. 六大最高级句型:in/of/among 范围句、副词最高级句、one of 句、序数词 + 最高级句、which/who 选择问句、比较级表最高级句
1. 比较级与最高级的转换逻辑
高频易错点总结:
易错点
错误示例
正确用法
纠错口诀
多音节词加 -est
beautifulest
most beautiful
多音节词用 most
重读闭音节不双写
bigest
biggest
重读闭音节要双写
最高级漏 the
She is tallest.
She is the tallest.
形最高级必加 the
副词最高级误加 the
可加可不加,都正确
灵活掌握
副可空
one of 后名不用复数
one of the tallest tree
one of the tallest trees
of 后名用复数
模块三 课堂小结(5分钟)
第1讲知识体系图谱:
最高级的"变形密码"
一、规则变化五法则
1.1 法则一:单音节 + -est(tall→tallest)
1.2 法则二:e 结尾 + -st(nice→nicest)
1.3 法则三:辅音 + y → iest(happy→happiest)
1.4 法则四:重读闭音节双写 + -est(big→biggest)
1.5 法则五:多音节 most + 原级(most beautiful)
二、不规则变化(good→best, bad→worst, many→most)
三、形容词最高级 vs 副词最高级(形必 the,副可空)
四、六大句型
4.1 A + be + the + 形最高级 + in/of/among
4.2 A + 动词 + (the) + 副最高级 + in/of/among
4.3 one of the + 最高级 + 复数名词
4.4 the + 序数词 + 最高级
4.5 Which/Who + 最高级, A, B or C?
4.6 比较级表最高级(than any other)
五、转换逻辑:最高级 ↔ 比较级 + than any other
教师结语: 今天我们学习了最高级的变形规则和六大核心句型。最高级和比较级是一体两面——比较级是"相对差异",最高级是"绝对极致"。下节课,我们将在基础上继续深化——从"单个句子的最高级"进化到"在语篇中灵活运用最高级来描述动植物的神奇之处"。
今日收获清单:
1. 掌握了最高级的规则和不规则变化
1. 学会了六大最高级句型
1. 理解了比较级与最高级的转换逻辑
1. 能区分形容词最高级和副词最高级的用法
模块四 课后巩固作业(30分钟量)| 分值:30分
4.1 基础巩固(10分钟)
一、写出最高级(每题1分,共8分)
1. tall → the tallest。解析:单音节词,直接加 -est。
1. happy → the happiest。解析:辅音 + y 结尾,变 y 为 i 加 -est。
1. big → the biggest。解析:重读闭音节,双写 g 加 -est。
1. beautiful → the most beautiful。解析:多音节词,加 the most。
1. good → the best。解析:不规则变化。
1. badly → worst。解析:不规则变化。副词最高级前 the 可省略。
1. thin → the thinnest。解析:重读闭音节,双写 n 加 -est。
1. early → the earliest。解析:辅音 + y 结尾,变 y 为 i 加 -est。
二、单项选择(每题1分,共8分)
1. Lucy is _______ girl in her class.
A. the most outgoing
B. most outgoing
C. more outgoing
D. outgoing
1. He jumps _______ among all the boys in his class.
A. far
B. farther
C. farthest
D. the farthest
1. This novel is one of _______ in the library.
A. the most interesting books
B. the most interesting book
C. a most interesting book
D. most interesting books
1. The _______ you plant trees, the _______ our city will become.
A. many; green
B. more; greener
C. most; greenest
D. much; green
1. She is the _______ student in our class.
A. good
B. well
C. best
D. better
1. Which is _______, a cheetah, a lion or a horse?
A. fast
B. faster
C. fastest
D. the fastest
1. He doesn't speak English as _______ as his brother.
A. well
B. good
C. better
D. best
1. No one in his class is _______ than him.
A. smarter
B. smartest
C. the smartest
D. smart
答案: 1. A 2. C 3. A 4. B 5. C 6. D 7. A 8. A
详细解析:
第1题 答案:A "in her class"表示范围,用最高级。outgoing 是多音节词,最高级为 the most outgoing。干扰项分析: B(most outgoing)缺少 the;C(more outgoing)是比较级;D(outgoing)是原级。
第2题 答案:C "among all the boys"表示范围,用最高级。far 的最高级为 farthest(具体距离)。副词最高级前 the 可省略。干扰项分析: D(the farthest)虽不算错,但副词最高级前的 the 可省略,本题 C 为最佳答案;B(farther)是比较级;A(far)是原级。
第3题 答案:A "one of the + 最高级 + 复数名词"固定结构。干扰项分析: B(the most interesting book)名词用单数;C(a most interesting book)冠词和名词数均错误;D(most interesting books)缺少 the。
第4题 答案:B "the + 比较级,the + 比较级"结构。many→more(比较级),green→greener(比较级)。干扰项分析: A(many; green)原级不能用于此结构;C(most; greenest)最高级不能用于 the more...the more 结构;D(much; green)原级不能用于此结构。
第5题 答案:C "in our class"表示范围,用最高级。good 的最高级是不规则变化 best。干扰项分析: A(good)是原级;B(well)是副词原级;D(better)是比较级。
第6题 答案:D 三者比较用最高级,形容词最高级前加 the。干扰项分析: C(fastest)缺少 the;B(faster)是比较级;A(fast)是原级。
第7题 答案:A as...as 中间用原级,修饰动词 speak 用副词 well。干扰项分析: B(good)是形容词,不能修饰动词;C(better)是比较级,不能用于 as...as 原级结构;D(best)是最高级。
第8题 答案:A "No one + 比较级"结构表示最高级含义。than 标志比较级。干扰项分析: B(smartest)是最高级,不能与 than 搭配;C(the smartest)是最高级;D(smart)是原级。
4.2 能力提升(12分钟)
三、完形填空(原创题,每题1分,共10分)
素材来源:自编题,素材基于 2026 年"全球最快动物评选"科普活动。
Animals have different abilities. Some are good at running. Some are good at flying. Some are good at swimming. Which animal is the _______ (1) of all?
On land, the cheetah is the _______ (2) animal. It can run at about 120 km per hour. That's much faster than any other land animal. In the air, the peregrine falcon(游隼)is the _______ (3) bird. When it dives(俯冲)for food, it can reach 390 km per hour. That's even faster than most cars on the highway!
In the sea, the black marlin(黑枪鱼)is one of the _______ (4) fish. It can swim at about 130 km per hour. But the sailfish(旗鱼)is even _______ (5) than the black marlin. It is the _______ (6) swimmer in the ocean.
Among all the animals in the world, which one is the _______ (7)? Scientists say it's hard to give a simple answer. Different animals are good at different things.
The _______ (8) thing is that each animal has its own special ability. The _______ (9) you learn about them, the _______ (10) you will understand the amazing world of animals.
1. A. quicker B. the quickest C. quickest D. quick
1. A. faster B. fastest C. the fastest D. fast
1. A. the fastest B. fastest C. faster D. more fast
1. A. fastest B. the fastest C. faster D. fast
1. A. fast B. fastest C. faster D. the fastest
1. A. faster B. fastest C. the fastest D. fast
1. A. fastest B. faster C. more fast D. the fastest
1. A. more important B. most important C. the most important D. important
1. A. much B. more C. most D. the most
1. A. well B. best C. better D. good
答案: 1. C 2. C 3. A 4. B 5. C 6. C 7. A 8. C 9. B 10. C
详细解析:
第1题 答案:C "of all"表示三者及以上范围,用最高级 quickest。副词最高级前 the 可省略。干扰项分析: A(quicker)是比较级;B(the quickest)虽不算错,但副词最高级 the 可省,C 为更简洁的答案;D(quick)是原级。
第2题 答案:C "the + 最高级 + 名词"结构。fastest 修饰 animal,是形容词最高级,前加 the。干扰项分析: A(faster)是比较级;B(fastest)缺少 the;D(fast)是原级。
第3题 答案:A "the + 最高级 + 名词"结构。干扰项分析: B(fastest)缺少 the;C(faster)是比较级;D(more fast)形式错误,fast 是单音节词。
第4题 答案:B "one of the + 最高级 + 复数名词"结构。干扰项分析: A(fastest)缺少 the;C(faster)是比较级;D(fast)是原级。
第5题 答案:C than 标志比较级,fast→faster。even 修饰比较级,表示"甚至更……"。干扰项分析: A(fast)是原级;B(fastest)是最高级,不能与 than 搭配;D(the fastest)是最高级。
第6题 答案:C "the + 最高级"结构,表示"最快的游泳者"。干扰项分析: A(faster)是比较级;B(fastest)缺少 the(形容词最高级作定语必须加 the);D(fast)是原级。
第7题 答案:A 在"所有动物"范围内用最高级 fastest。副词最高级前 the 可省略。干扰项分析: B(faster)是比较级;C(more fast)形式错误;D(the fastest)虽不算错但不如 A 简洁。
第8题 答案:C "the + 最高级 + 名词"结构。important 是多音节词,最高级 the most important。干扰项分析: A(more important)是比较级;B(most important)缺少 the;D(important)是原级。
第9题 答案:B "the + 比较级,the + 比较级"结构,much→more。干扰项分析: A(much)是原级;C(most)是最高级;D(the most)是最高级。
第10题 答案:C "the + 比较级,the + 比较级"结构,well→better。干扰项分析: A(well)是原级;B(best)是最高级;D(good)是形容词原级。
四、阅读理解(原创题,每题2分,共8分)
素材来源:自编题,素材基于 2026 年"中学生植物研究项目"成果展示。
Last month, students from Green Middle School did a project on amazing plants. Here are their findings.
The Tallest Living Thing
Many people think the tallest living thing is an animal, like a giraffe. But actually, it's a plant! The coast redwood(海岸红杉)is the tallest tree on Earth. Some redwoods can grow over 100 meters tall. That's as tall as a 30-story building! One of the most famous redwoods is called "Hyperion." It is about 116 meters tall. It is the tallest known living tree in the world.
The Oldest Living Thing
Some plants can live for thousands of years. One of the oldest living things on Earth is a type of tree called the bristlecone pine(狐尾松). The oldest one is more than 4,800 years old! It was already growing when the pyramids in Egypt were being built. But the oldest known living plant is a kind of seagrass(海草)in the Mediterranean Sea. Scientists say it is about 100,000 years old!
The Fastest-Growing Plant
Some plants grow very slowly. But bamboo is the fastest-growing plant. Some bamboo can grow almost one meter in a single day! That's faster than any other plant. Because it grows so fast, bamboo is one of the most useful plants. People use it to build houses, make furniture, and even eat the young shoots.
1. What is the tallest living thing on Earth according to the passage?
A. A giraffe.
B. The coast redwood.
C. A 30-story building.
D. The bristlecone pine.
1. How tall is the famous redwood called "Hyperion"?
A. Over 100 meters.
B. About 30 meters.
C. About 4,800 meters.
D. About 116 meters.
1. What is the oldest known living plant mentioned in the passage?
A. The bristlecone pine.
B. A kind of seagrass in the Mediterranean Sea.
C. The coast redwood.
D. Bamboo.
1. Why is bamboo considered one of the most useful plants?
A. Because it is the tallest plant in the world.
B. Because it grows faster than any other plant.
C. Because people can use it in many ways.
D. Because it is the oldest plant on Earth.
答案: 1. B 2. D 3. B 4. C
详细解析:
第1题 答案:B 原文"the coast redwood is the tallest tree on Earth"。注意"tallest living thing"在文中指的就是海岸红杉。干扰项分析: A(A giraffe)是原文提到的人们常见的误解;C(A 30-story building)是用作类比的对象,并非生物;D(The bristlecone pine)是最古老的树之一,并非最高的。
第2题 答案:D 原文"It is about 116 meters tall."直接定位。干扰项分析: A(Over 100 meters)不精确,虽然正确但不是最准确选项;B(About 30 meters)是用作类比的数据;C(About 4,800 meters)是狐尾松的年龄,单位错误。
第3题 答案:B 原文"the oldest known living plant is a kind of seagrass in the Mediterranean Sea"。干扰项分析: A(The bristlecone pine)是最古老的树之一,但并非最古老的植物;C(The coast redwood)是最高的树;D(Bamboo)是生长最快的植物。
第4题 答案:C 原文"Because it grows so fast, bamboo is one of the most useful plants. People use it to build houses, make furniture..."虽然生长快是原因,但"最有用"的直接原因是人们可以用它做很多事。干扰项分析: A( tallest)与事实不符;B(grows faster)是原因之一但不是"有用"的直接原因;D(oldest)与事实不符。
4.3 思维拓展(8分钟)
五、书面表达(10分)
假设你是李华,你的笔友 Mike 来信想了解你最喜欢的动物。请根据以下提示写一封回信。
提示:1. 你最喜欢的动物是什么;2. 它有什么特别之处(用最高级描述);3. 你为什么喜欢它。
要求:80 词左右;使用最高级结构,至少使用 3 次。
参考范文:
Dear Mike,
Thank you for your letter. You asked about my favorite animal. Let me tell you about it.
My favorite animal is the cheetah. It is the fastest land animal in the world. It can run at about 120 km per hour. Among all land animals, the cheetah runs the fastest. Its body is also the most suitable for running. It has a long tail and strong legs.
I like cheetahs because they are amazing. The more I learn about them, the more I want to protect them. I think they are one of the most wonderful animals on Earth.
Yours,
Li Hua
学科网(北京)股份有限公司
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人教版八年级英语上册 Unit 4
Amazing Plants and Animals
学生版讲义 · 全2讲
形容词/副词最高级 · 六层认知深度递进
第1讲 最高级的"变形密码"——从词形变化到句式建构
教学时长:120分钟(2课时)
核心问题链:如何比较三个及以上的事物? → 形容词/副词的最高级怎么变? → 最高级句式怎么用? → 比较级和最高级如何转换?
模块一 课前诊断(10分钟)
1.1 热身激活(3分钟)
任务: 判断下列句子是比较级还是最高级,将答案写在括号内。
1. Tom is taller than Mike. ( )
1. Tom is the tallest boy in his class. ( )
1. She runs faster than her brother. ( )
1. She runs fastest among all the girls. ( )
1. This is the most interesting book I have ever read. ( )
核心追问: 比较级和最高级有什么区别?分别用于什么情况?
请记录你的思考:
1.2 诊断测试(7分钟)
一、写出下列形容词/副词的最高级(每题1分,共10分)
原级
最高级
原级
最高级
1. tall
___________
6. fast
___________
2. happy
___________
7. heavy
___________
3. big
___________
8. thin
___________
4. beautiful
___________
9. bad / badly
___________
5. good / well
___________
10. many / much
___________
二、单项选择(每题1分,共5分)
1. Tom is _______ boy in his class.
A. the tallest
B. a taller
C. tallest
D. the taller
1. She is _______ girl in the school.
A. the most beautiful
B. a most beautiful
C. most beautiful
D. more beautiful
1. He runs _______ in his class.
A. fastest
B. the fastest
C. the faster
D. faster
1. This is one of _______ I have ever read.
A. the most interesting book
B. the most interesting books
C. a most interesting book
D. most interesting books
1. Who is _______, Tom, Jack or Mike?
A. the taller
B. the tallest
C. tallest
D. tall
模块二 课堂精讲(80分钟)
2.1 认知重构导入——"最高级"的思维模型(5分钟)
核心问题: 最高级到底在表达什么?
最高级不是比较级的简单延伸,而是表达"在某个群体中,某事物在某维度上达到了极致"。
最高级的三要素:
1. 比较的对象——必须有 ___________ 及以上的主体(A, B, C...)
1. 比较的维度——身高、速度、重量、美丽程度等
1. 比较的范围——in(地点/群体)/ of(同类事物)/ among(群体)
最高级的核心公式:
形容词最高级:A + be + ___________ + 最高级 + (名词) + in/of/among + 范围
副词最高级:A + 实义动词 + (the) + ___________ + in/of/among + 范围
2.2 最高级的"变形密码"——规则变化与不规则变化(15分钟)
核心问题: 什么时候加 -est?什么时候加 most?最高级和比较级的变形规则有什么联系?
2.2.1 规则变化"五法则"
法则
适用条件
变法
比较级示例
最高级示例
法则一
单音节词和部分双音节词
加 ___________
taller
tallest
法则二
以不发音 e 结尾
加 ___________
nicer
nicest
法则三
辅音字母 + y 结尾
y→___ 加 -est
happier
happiest
法则四
重读闭音节单辅音结尾
双写辅音 + ___________
bigger
biggest
法则五
多音节词和部分双音节词
___________ + 原级
more beautiful
most beautiful
核心规律: 最高级的词形变化规则与比较级完全平行,只是将 -er 替换为 ___________,将 more 替换为 ___________。
法则四深度解析——重读闭音节判断三步法:
1. 单词有几个音节?——big 是单音节(自然重读)
1. 结尾是不是"一个元音字母 + 一个辅音字母"?——big 结尾是 i(元音)+ g(辅音)
1. 满足条件 → 双写末尾辅音字母 + -est → biggest
课堂快速判断: 填写下列单词的最高级。
单词
是否重读闭音节?
最高级
hot
是(h-o-t)
___________
thin
是(th-i-n)
___________
fat
是(f-a-t)
___________
wet
是(w-e-t)
___________
nice
否(以 e 结尾)
___________
2.2.2 不规则变化——"特别记忆组"
原级
最高级
词性
记忆口诀
good
___________
形容词
好→最好
well
___________
副词
好地→最好
bad
___________
形容词
坏→最坏
badly
___________
副词
坏地→最坏
many
___________
形容词(可数)
多→最多
much
___________
形容词(不可数)
多→最多
little
___________
形容词
少→最少
far
___________ / ___________
形容词/副词
远→最远
farthest 与 furthest 的区别: farthest 仅指具体距离上的"最远";furthest 既可指具体距离,也可指抽象程度的"最大程度"。
2.2.3 形容词最高级 vs 副词最高级(关键对比)
对比维度
形容词最高级
副词最高级
修饰对象
名词(人或事物)
___________
句中位置
名词前 或 系动词后
动词后 或 句末
定冠词 the
___________
可省略
例句
She is the most careful student.
She works (the) most carefully.
判断口诀: "形修名词副修动,形必加 the 副可空。"
例题1 用所给词的正确形式填空:
1. Mount Qomolangma is the ___________ (high) mountain in the world.
1. Among all the students, Tom runs ___________ (fast).
1. This is the ___________ (bad) day I have ever had.
1. She is one of the ___________ (popular) teachers in our school.
例题2 写出最高级:
原级
最高级
原级
最高级
1. early
___________
3. badly
___________
2. carefully
___________
4. hot
___________
2.3 最高级的"句式建构"——六大核心句型(20分钟)
2.3.1 句型一:A + be + the + 形容词最高级 + in/of/among + 范围
功能: 表示"在某范围内,A 是最……的"。
公式: A + be + ___________ + 形容词最高级 + (名词) + in/of/among + 范围
例句: The blue whale is the largest animal in the world.
注意: in + 地点/群体(in the world, in our class);of + 同类事物(of all, of the three);among + 群体(among the students)。
例题3 The cheetah is _______ land animal.
A. the fastest
B. a fastest
C. the faster
D. fastest
2.3.2 句型二:A + 实义动词 + (the) + 副词最高级 + in/of/among + 范围
功能: 表示"在某范围内,A 做得最……"。
公式: A + 实义动词 + ___________ + 副词最高级 + in/of/among + 范围
例句: The cheetah runs (the) fastest of all land animals.
注意: 副词最高级前的 ___________ 可以省略,这是与形容词最高级的关键区别。
例题4 She dances _______ in her class.
A. the most beautifully
B. more beautifully
C. most beautiful
D. beautifully
2.3.3 句型三:one of the + 最高级 + 复数名词 + 范围
功能: 表示"在某范围内,A 是最……的之一"。
公式: A + be + one of ___________ + 最高级 + ___________ + in/of + 范围
例句: Bamboo is one of the most useful plants in China.
注意: 最高级前必须加 the;名词必须用 ___________ 形式;主语是单数时,谓语用单数(is)。
例题5 This is one of _______ in our city.
A. the tallest building
B. the tallest buildings
C. a tallest building
D. tallest buildings
2.3.4 句型四:the + 序数词 + 最高级 + 名词 + 范围
功能: 表示"在某范围内,A 是第几最……的"。
公式: A + be + ___________ + 序数词 + ___________ + 名词 + in/of + 范围
例句: The Yellow River is the second longest river in China.
例题6 The building is the _______ in our city.
A. third taller
B. three tallest
C. third tallest
D. three taller
2.3.5 句型五:Which/Who + be/动词 + the + 最高级,A, B or C?
功能: 在三个及以上的人或事物中选择,询问"哪个最……"。
公式: Which/Who + be/动词 + ___________ + 最高级, A, B or C?
例句: Which animal runs the fastest, the cheetah, the lion or the horse?
例题7 _______ is the most difficult, physics, chemistry or biology?
A. What
B. Which
C. Who
D. Whose
2.3.6 句型六:比较级表最高级(转换句型)
功能: 用比较级的形式表达最高级的含义。
三种转换方式:
方式
结构
例句
方式一
比较级 + than ___________ + 单数名词
He is taller than any other student in his class.
方式二
比较级 + than ___________ + 复数名词
He is taller than all the other students in his class.
方式三
___________ + 比较级 + than
No one in his class is taller than him.
例题8 Tom is the tallest boy in his class.(改为同义句)
A. Tom is taller than any other boy in his class.
B. Tom is taller than any boys in his class.
C. Tom is taller than all boys in his class.
D. Tom is the taller than other boy.
2.4 比较级与最高级的"转换逻辑"(10分钟)
核心规律: 比较级和最高级可以相互转换,表达相同或相近的语义。
转换三步法:
1. 识别最高级的比较范围(in/among/of)
1. 确定"排除自身"的逻辑(any other / all the other / No one else)
1. 用比较级 + than 结构重新表达
例题9 按要求转换句子:
1. The blue whale is the heaviest animal in the world.(改为比较级)
1. No one in his class is taller than Tom.(改为最高级)
2.5 课堂练习(15分钟)
A 层·识记层(5分钟)——写出最高级
原级
最高级
原级
最高级
1. small
___________
5. little
___________
2. easy
___________
6. far
___________
3. fat
___________
7. friendly
___________
4. carefully
___________
8. wet
___________
B 层·理解层(5分钟)——单项选择
1. Which is _______, the sun, the moon or the earth?
A. the biggest
B. biggest
C. the bigger
D. bigger
1. The Yangtze River is one of _______ in the world.
A. longest river
B. the longest river
C. the longest rivers
D. a longest river
1. She is _______ than any other girl in her class.
A. the taller
B. tallest
C. more tall
D. taller
1. He runs _______ among all the boys.
A. the faster
B. fastest
C. more fast
D. fast
1. This is _______ film I have ever seen.
A. the most interesting
B. a most interesting
C. most interesting
D. the more interesting
C 层·应用层(5分钟)——完形填空
素材来源:自编题,素材基于 2026 年"校园植物角评选"活动背景。
Last month, our school had a "Best Plant Corner" competition. Each class planted different plants. Our class grew some sunflowers. They were the _______ (1) plants in our school. Some grew up to 3 meters!
Class 2 grew some roses. They were the _______ (2) flowers of all. Many teachers came to take photos. Class 3 had a small garden with moss. Moss is one of the _______ (3) plants on Earth. It can live for thousands of years.
Our science teacher said, "Every plant is special in its own way. Sunflowers are the tallest. Roses are the most beautiful. Moss is the oldest. But the _______ (4) thing is that all plants need our care. The more you take care of them, the _______ (5) they will grow."
I think our school is the most beautiful place in spring!
1. A. the tallest B. tallest C. taller D. tall
1. A. most beautiful B. the most beautiful C. more beautiful D. beautiful
1. A. the oldest B. oldest C. older D. old
1. A. most important B. more important C. the most important D. important
1. A. the best B. best C. good D. better
2.6 课堂精讲反馈(5分钟)
重点梳理:
1. 最高级的规则变化"五法则"——加 -est / 加 -st / 变 y 为 i 加 -est / 双写加 -est / most + 原级
1. 形容词最高级与副词最高级的区别——形修名词副修动,形必加 the 副可空
1. 六大最高级句型
1. 比较级与最高级的转换逻辑
高频易错点总结:
易错点
错误示例
正确用法
纠错口诀
多音节词加 -est
beautifulest
___________
多音节词用 most
重读闭音节不双写
bigest
___________
重读闭音节要双写
最高级漏 the
She is tallest.
___________
形最高级必加 the
one of 后名不用复数
one of the tallest tree
___________
of 后名用复数
模块三 课堂小结(5分钟)
第1讲知识体系图谱:
请根据本节课所学内容,补全以下知识图谱。
最高级的"变形密码"
一、规则变化五法则
1.1 法则一:单音节 + ___________(tall→tallest)
1.2 法则二:e 结尾 + ___________(nice→nicest)
1.3 法则三:辅音 + y → ___________(happy→happiest)
1.4 法则四:重读闭音节双写 + ___________(big→biggest)
1.5 法则五:多音节 ___________ + 原级(most beautiful)
二、不规则变化(good→best, bad→worst, many→most)
三、形容词最高级 vs 副词最高级(形必 ,副可)
四、六大句型
五、转换逻辑:最高级 ↔ 比较级 + than any other
今日收获清单(请自行勾选):
[ ] 掌握了最高级的规则和不规则变化
[ ] 学会了六大最高级句型
[ ] 理解了比较级与最高级的转换逻辑
[ ] 能区分形容词最高级和副词最高级的用法
模块四 课后巩固作业(30分钟量)
4.1 基础巩固(10分钟)
一、写出最高级(每题1分,共8分)
原级
最高级
原级
最高级
1. tall
___________
5. good
___________
2. happy
___________
6. badly
___________
3. big
___________
7. thin
___________
4. beautiful
___________
8. early
___________
二、单项选择(每题1分,共8分)
1. Lucy is _______ girl in her class.
A. the most outgoing
B. most outgoing
C. more outgoing
D. outgoing
1. He jumps _______ among all the boys in his class.
A. far
B. farther
C. farthest
D. the farthest
1. This novel is one of _______ in the library.
A. the most interesting books
B. the most interesting book
C. a most interesting book
D. most interesting books
1. The _______ you plant trees, the _______ our city will become.
A. many; green
B. more; greener
C. most; greenest
D. much; green
1. She is the _______ student in our class.
A. good
B. well
C. best
D. better
1. Which is _______, a cheetah, a lion or a horse?
A. fast
B. faster
C. fastest
D. the fastest
1. He doesn't speak English as _______ as his brother.
A. well
B. good
C. better
D. best
1. No one in his class is _______ than him.
A. smarter
B. smartest
C. the smartest
D. smart
4.2 能力提升(12分钟)
三、完形填空(原创题,每题1分,共10分)
素材来源:自编题,素材基于 2026 年"全球最快动物评选"科普活动。
Animals have different abilities. Some are good at running. Some are good at flying. Some are good at swimming. Which animal is the _______ (1) of all?
On land, the cheetah is the _______ (2) animal. It can run at about 120 km per hour. That's much faster than any other land animal. In the air, the peregrine falcon(游隼)is the _______ (3) bird. When it dives(俯冲)for food, it can reach 390 km per hour. That's even faster than most cars on the highway!
In the sea, the black marlin(黑枪鱼)is one of the _______ (4) fish. It can swim at about 130 km per hour. But the sailfish(旗鱼)is even _______ (5) than the black marlin. It is the _______ (6) swimmer in the ocean.
Among all the animals in the world, which one is the _______ (7)? Scientists say it's hard to give a simple answer. Different animals are good at different things.
The _______ (8) thing is that each animal has its own special ability. The _______ (9) you learn about them, the _______ (10) you will understand the amazing world of animals.
1. A. quicker B. the quickest C. quickest D. quick
1. A. faster B. fastest C. the fastest D. fast
1. A. the fastest B. fastest C. faster D. more fast
1. A. fastest B. the fastest C. faster D. fast
1. A. fast B. fastest C. faster D. the fastest
1. A. faster B. fastest C. the fastest D. fast
1. A. fastest B. faster C. more fast D. the fastest
1. A. more important B. most important C. the most important D. important
1. A. much B. more C. most D. the most
1. A. well B. best C. better D. good
四、阅读理解(原创题,每题2分,共8分)
素材来源:自编题,素材基于 2026 年"中学生植物研究项目"成果展示。
The Tallest Living Thing
Many people think the tallest living thing is an animal, like a giraffe. But actually, it's a plant! The coast redwood(海岸红杉)is the tallest tree on Earth. Some redwoods can grow over 100 meters tall. That's as tall as a 30-story building! One of the most famous redwoods is called "Hyperion." It is about 116 meters tall. It is the tallest known living tree in the world.
The Oldest Living Thing
Some plants can live for thousands of years. One of the oldest living things on Earth is a type of tree called the bristlecone pine(狐尾松). The oldest one is more than 4,800 years old! It was already growing when the pyramids in Egypt were being built. But the oldest known living plant is a kind of seagrass(海草)in the Mediterranean Sea. Scientists say it is about 100,000 years old!
The Fastest-Growing Plant
Some plants grow very slowly. But bamboo is the fastest-growing plant. Some bamboo can grow almost one meter in a single day! That's faster than any other plant. Because it grows so fast, bamboo is one of the most useful plants. People use it to build houses, make furniture, and even eat the young shoots.
1. What is the tallest living thing on Earth according to the passage?
A. A giraffe.
B. The coast redwood.
C. A 30-story building.
D. The bristlecone pine.
1. How tall is the famous redwood called "Hyperion"?
A. Over 100 meters.
B. About 30 meters.
C. About 4,800 meters.
D. About 116 meters.
1. What is the oldest known living plant mentioned in the passage?
A. The bristlecone pine.
B. A kind of seagrass in the Mediterranean Sea.
C. The coast redwood.
D. Bamboo.
1. Why is bamboo considered one of the most useful plants?
A. Because it is the tallest plant in the world.
B. Because it grows faster than any other plant.
C. Because people can use it in many ways.
D. Because it is the oldest plant on Earth.
4.3 思维拓展(8分钟)
五、书面表达(10分)
假设你是李华,你的笔友 Mike 来信想了解你最喜欢的动物。请根据以下提示写一封回信。
提示: 1. 你最喜欢的动物是什么;2. 它有什么特别之处(用最高级描述);3. 你为什么喜欢它。
要求: 80 词左右;使用最高级结构,至少使用 3 次。
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