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(共27张PPT)
Unit 4
Amazing Animals and Plants
Section A Grammar Focus 3a—3c
To learn to make comparisons using superlatives.
To talk about some amazing plants.
Do some exercises.
Objectives
Watch the video
Lead-in
Part 1. Question
What does this video talk about
World's Records
Part 2. Think and say
Can you express these world's records in one sentence
●Mount Everest is the highest mountain on Earth, standing at an elevation of 8848.86 meters.
●The Nile River is the longest river in the world, meandering across the deserts of North Africa for 6650 kilometers.
●The Sahara Desert is the largest hot desert in the world, covering an area of nearly 9 million square kilometers.
●Blue whales are the largest animals on Earth, reaching lengths of over 30 meters and weighing up to 180 tons, gracefully moving through the deep sea.
●The Mariana Trench is the deepest place in the world's oceans, plunging to a depth of 10994 meters and challenging humanity's exploration of extreme environments.
●The Great Wall is the longest man-made structure in the world, spanning
21196 kilometers and bearing thousands of years of history and culture.
Presentation
Part 1. Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb
3a
watch a video and translate all the sentences.
The blue whale is the largest and the heaviest animal in the world.
The biggest land animal in the world is the African elephant.
The cheetah runs the fastest among all land animals.
I think the most useful plant in the world is bamboo.
It is perhaps the most interesting plant in the world.
Presentation
Part 2. Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb
3a
The blue whale is the largest and the heaviest animal in the world.
The biggest land animal in the world is the African elephant.
The cheetah runs the fastest among all land animals.
I think the most useful plant in the world is bamboo.
It is perhaps the most interesting plant in the world.
Question: Which parts of speech (词性) have superlative forms
最高级
the superlative
adjective 形容词
adverb 副词
The blue whale is the largest and the heaviest animal in the world.
The biggest land animal in the world is the African elephant
The cheetah runs the fastest among all land animals.
I think the most useful plant in the world is bamboo.
It is perhaps the most interesting plant in the world.
形容词
形容词
副词
形容词
形容词
形容词
How do you know the parts of speech
Presentation
Part 3. Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb
3a
Do you know the rules
音节
是否是规则变化
The blue whale is the largest and the heaviest animal in the world.
The biggest land animal in the world is the African elephant.
The cheetah runs the fastest among all land animals.
I think the most useful plant in the world is bamboo.
It is perhaps the most interesting plant in the world.
The blue whale is the largest and the heaviest animal in the world.
The biggest land animal in the world is the African elephant
The cheetah runs the fastest among all land animals.
I think the most useful plant in the world is bamboo.
It is perhaps the most interesting plant in the world.
双音节heavy最高级
双音节useful的最高级
单音节large最高级
单音节big最高级
单音节fast最高级
三音节interest的最高级
不规则变化呢？
构成方法 原级 最高级
单音节词和部分双音节词 high tall highest
tallest
fine late finest
latest
big fat biggest
fattest
easy funny easier
funnier
部分双音节和多音节 在前面加the most interesting comfortably the most
interesting
/comfortably
一般在词尾加est
以字母e结尾的词，在词尾加st
重读闭音节词尾只有一个辅音字母时，先双写辅音字母再加est
以“辅音字母+y”结尾的双音
节变y为i+est
形容词和副词比较级
Let’s chant
最高级，很容易，一般词尾加est。(cheap-the cheapest)
词尾若有哑音e, 直接就加st。(close-the closest)
重读闭音节， 单辅音字母要双写。(big-the biggest)
辅音字母加y, 记得把y变为i。(friendly-the friendliest)
多音节，考考你，the most到底加哪里？(popular-the most popular)
最高级规则变化口诀
(2) 不规则变化
原级 比较级 例句
good(形容词) / well(副词) best She is the best student in the class.
He plays the piano best among us.
bad(形容词) / badly(副词) worst This is the worst movie I've ever seen.
She performed worst in the competition.
many(形容词) / much(副词) most This is the most interesting book I've read.
She works most efficiently in the team.
little(形容词/副词 ) least He has the least experience in this field.
She speaks English the least fluently among us.
far(形容词/副词 ) farthest (具体距离的远近) The moon is the farthest celestial body we can see.
He threw the ball farthest in the competition.
furthest (抽象意义的深远) This theory goes to the furthest extent of human imagination.
She has thought furthest about the future of AI.
2
Presentation
Part 4. Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb
3a
Pay attention to the red words
最高级有范围？
The blue whale is the largest and the heaviest animal in the world.
The biggest land animal in the world is the African elephant.
The cheetah runs the fastest among all land animals.
I think the most useful plant in the world is bamboo.
It is perhaps the most interesting plant in the world.
Yes！
用法：英语中三者或三者以上相比较，表示“最……” 这样的最高程度概念时，要用 “the+最高级” 的结构表示。这种句式一般带有表示比较的介词短语，比如: in our class, of the three 等。
例如: Wang Lin is the tallest in our class.
This theater is the cheapest of the three.
注意使用最高级时应注意以下几点：
形容词、副词最高级
①表示 “最……之一”的句式，要用 one of the +形容词最高级+复数名词。例如：
例如: Jingjiang Hotel is one of the biggest hotels in our city.
Lisa is one of my best friends.
②当最高级前面有物主代词或名词所有格时, 不加定冠词 the。
例如：Tom is Lucy’s best friend.
Tuesday is her busiest day.
形容词、副词最高级
③最高级前可加序数词。例如：
The Yellow River is the second longest river in China.
④形容最高级修饰作表语或介词宾语的名词，代词时，被修饰的词往往省略.例如：
He is the laziest (student) in our class.
形容词、副词最高级
in
+ 范围
This is the biggest city in China.
He was the youngest player in the team.
表示 “在…… 范围内”，后接大范围（如地点、组织、时间阶段等）。
of + 具体成员/同类事物
She is the most talented of all the students.
This apple is the sweetest of the five.
形容词和副词的最高级的范围
表示 “在…… 中”，后接具体的人或事物（复数名词 / 集合名词），强调从同类中选出 “最……” 的个体。
among + 同类群体
He is the richest man among the billionaires.
Which is the smallest among these birds
强调 “在…… 群体中”，后接复数名词或代词，可与 of 互换，但 among 更侧重 “在多者之间” 的分布感。
out of
+ 明确范围
She scored the highest marks out of all candidates.
This song is my favorite out of his new album.
表示 “从…… 中”，后接明确的复数名词或代词，常用于强调 “从某一特定范围中选出”。
Practice
Part 1. Complete the sentences with the superlative forms of the words in brackets.
3b
1. Among all animals, I love pandas the best. I think they are _________ (cute) animals in the world.
2. Which do you think is __________________ (beautiful), the rose, the peony, or the lotus flower
3. Look at that butterfly! It has __________________(colourful) wings.
4. Which animal jumps ___________ (high), the lion, the monkey, or the tree frog
5. The elephant birds were ___________ (large) and _________ (heavy) birds ever on earth. Some could stand up to three metres tall and weigh up to 860 kg.
the cutest
the most beautiful
the most colourful
(the) highest
the largest
heaviest
Part 2. Complete the passage with the superlative forms of the words in the box.
3c
ancient beautiful common good popular
The ginkgo tree is one of ________________ living trees on earth. Ginkgo trees first appeared over 200 million years ago. Chinese people love the ginkgo, as it is a symbol of hope and long life. Many Chinese believe that the old ginkgo tree in the Zhongnan Mountains in Shaanxi Province is ____________________. This tree is over 1,400 years old. Thousands of tourists come to see it each year, especially in mid-October, as it is _____________ time to see it. The ginkgo tree is one of __________________ trees in streets, parks, and gardens across China. When autumn comes, one of _____________ activities is to take a walk under ginkgo trees. People believe the bright yellow leaves can bring joy to their heart.
the most ancient
the most beautiful
the best
the most common
the most popular
Production
Make sentences: The first student makes a sentence using the superlative form of an adjective, for example, "She is the most beautiful girl in our class." Then the next student has to start a new sentence with the last letter of the superlative-form adjective in the previous sentence, and so on.
Game time!
For example
She is the most beautiful girl in our class.（l 结尾）
This is the longest river I've ever seen.（g 结尾）
That's the biggest apple on the tree.（g 结尾）
He is the smartest boy in the grade.（t 结尾）
It is the hottest day of this month.（t 结尾 ）
Exercise-翻译题
1. 非洲玫瑰是这片土地上最鲜艳的花朵之一。（one of 结构）
African roses are one of the most colorful flowers on this land.
2. 蝴蝶的翅膀是自然界中最轻盈的结构之一。（among）
Butterfly wings are among the lightest structures in nature.
3. 她是班上所有学生中最高的女孩。（of+同类事物）
She is the tallest girl of all the students in the class.
4. 荷花池是公园里最宁静的角落。（in+范围）
The lotus pond is the quietest corner in the park.
What are the benefits of using superlative degrees in daily life
It helps us describe differences more clearly, like "My schoolbag is the heaviest in the class."
Summary
New words
land; African; rose; peony; lotus; butterfly; wing; frog; weigh; kg; ginkgo; province; take a walk
the superlatives
Grammar
(1) 形容词和副词一般具有最高级结构
(2) 最高级的构成：①单音节、双音节、多音节；②规则变化和不规则变化
(3) 最高级的范围：①in+范围；②of+具体成员/同类事物；③among + 同类群体；
④out of + 明确范围；⑤ 定语从句与状语从句
(4) one of 结构
(5) 比较级表达最高级
Thanks for
listening!

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