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(共36张PPT)
Comparative and superlative adjectives/adverbs
&Large numbers
第3课时
(Section A Grammar Focus)
Unit 4
The Wonders of Nature
Lesson Objectives:
In this lesson, we will be able to:
1. Master the comparative and superlative forms of adjectives
/adverbs; learn to read and write large numbers; master new
words: cubic, cubic metre, mile, pool and their usage in context.
2. Use comparative/superlative adjectives/adverbs correctly in
speaking and writing; complete grammar exercises and create
dialogues to compare places and natural wonders.
3. Cultivate curiosity about world geography; develop awareness
of protecting natural resources; learn to use English to explore
the world.
目录
01
Lead in
02
Grammar
03
Practice
04
Exercise
05
Homework
Lead in
World Record Challenge 世界之最知识竞赛
What is the highest mountain in the world
_______________.
提示：答对名称+1分；读对数字+2分。
How high is it
It's _________ metres high.
Qomolangma
8,848.86
Lead in
World Record Challenge 世界之最知识竞赛
Which is larger, the Sahara Desert or the Gobi Desert
_________________.
How big is it
It’s about __________square kilometres in size.
The Sahara Desert
9,000,000
Lead in
World Record Challenge 世界之最知识竞赛
How deep is the deepest point in the ocean
About ________ metres.
Which river in China travels the farthest
The _________ River.
11,000
Yangtze
Read the sentences. Circle the adjectives which compare things. Underline the adverbs which compare actions.
4a
What is the biggest desert in the world？ It is the Sahara Desert.
How big is it？ It is about 9,000,000 square kilometres in size.
Where is the deepest point in the ocean？ It is in the Mariana Trench.
How deep is it？ It is about 11,000 metres deep.
Some deep-sea animals are blind, but they can “see” as well as others.
Mount Qomolangma is one of the greatest wonders of the world, and it is still growing taller.
The Yangtze River travels the farthest in China and is about 6,300 kilometres long.
形容词最高级
形容词比较级
副词原级
副词最高级
语法知识导图
形容词和
副词的比较级与最高级
比较级和最高级的构成
最高级的用法
(一) 形容词和副词的比较级与最高级
→规则变化、不规则变化
→(the+)最高级+in/of/among短语
→one of the + 形容词最高级+可数名词复数
+in/of短语
→“Which/Who...(+the)+最高级, A, B or C ”
→the+序数词+形容词最高级+可数名词复数
+in/of短语
比较级的用法
→比较级 + than
→the + 比较级, the + 比较级
→比较级 + and + 比较级
→more and more + 形容词/副词原级
比较级和最高级的构成
Grammar
①规则变化
构成方法 示例
单音节词和部分双音节词 一般在词尾加-er或-est long→longer→longest
hard→harder→hardest
以字母e结尾的词加-r或-st large→larger→largest
late→later→latest
以一个辅音字母结尾的重读闭音节词，双写该辅音字母，再加-er或-est big→bigger→biggest
thin→thinner→thinnest
以“辅音字母+y”结尾的词，先把“y”变为“i”，再加-er或-est early→earlier→earliest
busy→busier→busiest
多音节词和部分双音节词 在前面加more或most interesting→more interesting→most interesting quickly→more quickly→most quickly
比较级和最高级的构成
②不规则变化
原级 比较级 最高级
good/well
many/much
far
bad/badly
little
better
best
more
most
father/further
farthest/ furthest
worse
worst
less
least
挑战一：写出下列单词的比较级和最高级。
1. high → _________ → _________
2. big → _________ → _________
3. low → _________ → _________
4. deep → _________ → _________
5. far → ________________ → _________________
6. happy → _________ → _________
7. loud → _________ → _________
8. close → _________ → _________
9. amazing → _______________ → _______________
10. little → _________ → _________
higher
highest
bigger
biggest
lower
lowest
deeper
deepest
farther/further
farthest/furthest
happier
happiest
louder
loudest
closer
closest
more amazing
most amazing
less
least
Grammar
比较级的用法
形容词与副词的比较级常用于两者之间的比较，表示两者之间的差异。常用结构如下：
①形容词／副词的比较级＋than... 比······
注：than前后所使用的动词相同时，通常用助动词代替后面的动词或
省略后面的动词。
e.g. They all think my eyes look bigger than my brother's.
他们都认为我的眼睛比我哥哥的大。
George runs faster than I (do). 乔治跑得比我快。
Grammar
比较级的用法
② the＋比较级..., the＋比较级... 越······，就越······
e.g. The more careful you are, the fewer mistakes you will make.
你越仔细，犯的错误就越少。
The faster you run, the sooner you'l1 arrive．你跑得越快，到得就越早。
e.g. The weather is getting colder and colder these days.
这些天天气越来越冷了。
Our hometown is developing fast and becoming more and more beautiful．我们家乡正在快速发展，变得越来越美丽。（2025安徽中考）
③比较级＋and＋比较级
more and more＋形容词／副词原级
越来越······
Grammar
比较级的用法
④ the＋比较级＋of the two(＋名词复数）两者中较······的那个
e.g. Mike is the taller of the two boys.
迈克是两个男孩中较高的那个。
e.g. Which city is larger, Beijing or Shanghai
北京和上海，哪个城市更大？
⑤ Which/Who...＋比较级，A or B A和B哪个／谁更······？
⑥ A+be+倍数+形容词比较级+than+B A是B的······倍······
e.g. Our school is three times bigger than yours.
我们学校是你们学校的三倍大。
Grammar
最高级的用法
① (the+)最高级＋in/of/among 短语 ······中最······的
e.g. In my country, July is the hottest month of the year.
在我国，七月是一年中最热的月份。
The cheetah runs (the) fastest among all land animals.
在所有陆生动物中，猎豹跑得最快。
e.g. Pingyao Ancient City is one of the best-kept ancient cities in China.
平遥古城是中国保存最完好的古城之一。（2025山西中考）
② one of the＋形容词最高级＋可数名词复数＋in/of短语
······中最······的······之一
Grammar
最高级的用法
③ “Which/Who...(+the)＋最高级，A, B or C？” 意为
“哪个／谁是最······, A、B还是C？”，用于三者之间的比较。
e.g. Who sings the best in your class, Lily, Tom, or Jack？
你们班谁唱得最好，莉莉、汤姆还是杰克？
e.g. The Yellow River is the second longest river in China.
黄河是中国第二长河。
④ the＋序数词＋形容词最高级＋可数名词单数＋in/of短语
在······中第······的······
挑战二：写用所给词的适当形式填空。
1. (2025 扬州中考）The international influence of Yangzhou is getting
___________ than before. (strong)
2. (2025德阳中考改编）Lin Tao runs ___________ (fast) than most of his
classmates. He is the running star in his class.
3. (2025达州中考）The Yangtze River is the __________ (long) river in China.
4. (2025 白银中考）The more we communicate with our parents,
the ___________ (good) we'll understand each other.
5. (2025成都中考改编）Miss Li always has a lot of work to do. For her,
nothing is ________________ (important) than a proper plan.
6.（宁波中考政编）For most of the students, June is always the ___________
(busy) month in a year.
7. Qian Xuesen, father of China's space program, is one of the ___________
(great) scientists in the world.
stronger
faster
longest
better
more important
busiest
greatest
挑战三：单项选择。
1. (2025北京中考）The National Library of China is ______ public library
in Asia.
A. large B. larger C. largest D. the largest
2. (2025长春中考）In a DIY club, the more we practice, ______ we become.
A. the worse B. the worst C. the better D. the best
3. (2025云南中考）Journey to the West is one of ______ classic novels
in China. People like reading it.
A. famous B. more famous C. the more famous D. the most famous
4. It is said that smart technology is making people ______ than before and
doing them harm.
A. lazy B. lazier C. laziest D. the laziest
D
C
D
B
挑战四：完成句子，每空一词。
1. 赛龙舟是端午节最热闹的一项活动。它展示了人与人之间团结合作的
精神。
The Dragon Boat Race is ________ ________ lively activity of the Dragon
Boat Festival. It shows the spirit of unity and cooperation among people.
2. 我们应该学会正确使用人工智能，让我们的生活越来越好。
We should learn how to use AI properly to make our lives
________ ________ ________.
the most
better and better
Let’s think
How big is it It is about 9,000,000 square kilometres in size.
How deep is it It is about 11,000 metres deep.
The Yangtze River travels the farthest in China and is about 6,300 kilometres long.
试着读出画线部分的大数字？你能发现什么规律？
读作：nine million
读作：eleven thousand
读作：six thousand and three hundred
Grammar
(二) 较大数字的表达与读法
大于1000的基数词的表达法
①从数字的右端向左数，每三位数加一个逗号。
②从右向左，第一个逗号处读thousand（千），第二个逗号处
读 million（百万），第三个逗号处读billion（十亿）。
③读的时候通常在hundred后加and，如果百位数为0，
则在thousand后加and。
④英语中没有直接表示“万”和“亿”的单位词，而要用thousand和million
来表达，如“一万”用“ten thousand”、“一亿”用“one hundred million”。
Grammar
(二) 较大数字的表达与读法
2,674
164,213,430
18,357,089
5,204,000,000
试着读出下列数字：
two thousand six hundred and seventy-four
one hundred and sixty-four million, two hundred and thirteen thousand, four hundred and thirty
eighteen million, three hundred and fifty-seven thousand, and eighty-nine
five billion two hundred and four million
1. 45, 390
__________________________________________
2. 6, 425, 137
__________________________________________
3. 13, 057, 018
__________________________________________
4. three million, five hundred thousand and ninety-two
__________________________________________
5. twenty-eight thousand, six hundred and fifty-six
__________________________________________
6. forty million, four hundred and twenty-four thousand
__________________________________________
挑战五：写出或读出下列数字。
forty-five thousand, three hundred adn ninety
six million, four hundred and twenty-five thousand, one hundred and thirty-seven
thirteen million, fifty-seven thousand and eighteen
3, 500, 092
28, 656
40, 424, 000
Write or spell out the numbers.
4b
1. Mount Kilimanjaro is________ (five thousand, eight hundred
and ninety-five) metres high.
2. __________ (twenty-five thousand, seven hundred and sixty-
eight) cubic metres of water pours down Inga Falls each
second.
3. The East African Rift Valley is about 4,000 (_______________)
miles long.
4. The Taklimakan Desert has a total area of about 337,000
(_____________________________________) square kilometres.
5, 895
three hundred and thirty-seven thousand
25, 768
four thousand
乞力马扎罗山
立方米
pour down 倾泻而下
英加瀑布
东非大裂谷
has a total area of... 总面积为……
Complete the passage with the correct forms of the words in the box.
4c
large amazing far close loud
My friends and I visited Victoria Falls in Africa last year.
Visiting one of the world’s _________ waterfalls was
a magical experience. As we went _________ to the falls,
the noise of the water slowly grew louder and _________. Then,
right before our eyes, the waterfall appeared. It went on for as _______ as the eye could see. Later, we sat in a special pool at the top of the falls. There, we felt the water rush past us and become a part of the waterfall. It was the scariest but also the _______________ experience of our trip!
largest
closer
louder
far
most amazing
维多利亚瀑布
go close to 靠近;接近
就在眼前；眼皮底下
as far as the eye can/could see
极目所尽
at the top of 在...的顶部
Language points
教材 P35 4c
1. It went on for as far as the eye could see. 它一眼望不到头。
as far as... 远至(某处)
e.g. There was a fire in the mountain, which came up as far as our village.
山里发生了火灾，都蔓延到我们村了。
拓展：as far as... 就.....的限度，到......的程度
as far as I/we know 据我/我们所知
as/so far as I can see 依我看
e.g. As far as we know, the Sahara is the biggest desert in the world.
据我们所知，撒哈拉沙漠是世界上最大的沙漠。(眉山中考)
练习：依我看，这两台电脑没有差别。
_____________________, there is no difference between the two
computers.
As far as I can see
Read again and answer.
4c
My friends and I visited Victoria Falls in Africa last year. Visiting one of the world’s largest waterfalls was a magical experience. As we went closer to the falls, the noise of the water slowly grew louder and louder. Then, right before our eyes, the waterfall appeared. It went on for as far as the eye could see. Later, we sat in a special pool at the top of the falls. There, we felt the water rush past us and become a part of the waterfall. It was the scariest but also the most amazing experience of our trip!
Q1: Where did the writer visit last year
Q2: How did the noise of the water change when they got closer
to the falls
They visited Victoria Falls in Africa.
It grew louder and louder.
Read again and answer.
4c
My friends and I visited Victoria Falls in Africa last year. Visiting one of the world’s largest waterfalls was a magical experience. As we went closer to the falls, the noise of the water slowly grew louder and louder. Then, right before our eyes, the waterfall appeared. It went on for as far as the eye could see. Later, we sat in a special pool at the top of the falls. There, we felt the water rush past us and become a part of the waterfall. It was the scariest but also the most amazing experience of our trip!
Q3: What did they do at the top of the falls
Q4: How did the writer feel about this trip
They sat in a special pool and felt the water rush past them.
He/She thought it was the scariest but also the most amazing experience of the trip.
Write some questions to compare places. Then ask a partner your questions.
4d
What is the highest...
Which park is bigger, ... or ...
疑问词（组）+谓语动词+比较级，A or B A和B，……更……？
Write some questions to compare places. Then ask a partner your questions.
4d
What is the highest mountain in China
It's Mount Qomolangma.
Which is higher, Mount Qomolangma or Mount Tai
Mount Qomolangma is much ________ than Mount Tai.
higher
Exercises
1. The town is about 50 ___________ (kilometre) away from the city.
2. The restaurant is as _________ (close) as the post office, just next door.
3. The lake is much _________ (deep) after the heavy rain.
4. That was the ______________ (amazing) painting in the whole museum.
5. It is one of the biggest _________ (pool) in this city.
I. 用括号中所给单词的适当形式填空。
kilometres
close
deeper
most amazing
pools
Exercises
1. Among all the planets, Neptune is the __________ from the sun.
2. The forest covers an area of ten square ____________.
3. In the school competition, Li Ming answered the questions most
__________ and clearly and won first prize.
4. Can you please speak a bit _____________ I can’t understand you.
5. The swimming pool holds one thousand __________ metres of water.
farthest
II. 用方框中所给单词或短语的适当形式填空。
quick cubic far heavy clear tall kilometre
kilometres
quickly
more clearly
cubic
Exercises
III. 根据汉语提示完成句子（每空一词）。
1. The lake in the park is not as deep as the lake near the forest.
(改为同义句)
The lake near the forest is _______ _______ that in the park.
2. The elephant is about 6,000 kilogrammes. (对画线部分提问)
_______ _______ is the elephant
3. The Amazon Rainforest is over 5 million square kilometres.
(对画线部分提问)
_______ _________ is the Amazon Rainforest
4. For our students, the textbook is more useful than any other book in the study. (改为含最高级的句子)
For our students, the textbook is _______ _______ ________ book of all the books in the study.
5. This paper is 12 cm long and 8 cm wide. (改为意思相近的句子)
This paper is 96 ________ ____________.
deeper than
How heavy
How big/large
the most useful
square centimetres
Summary
We learn:
1. Vocabulary: cubic, cubic metre, mile, pool, square kilometre, etc.
2. Sentence Patterns: Use comparative/superlative adjectives/adverbs to
compare things/actions; use large numbers to describe facts.
3. Grammar: Comparative and superlative forms of adjectives/adverbs;
usage of "as ... as", "comparative + and + comparative".
We can:
1. Use comparative/superlative adjectives/adverbs and large numbers correctly
in speaking and writing.
2. Create dialogues to compare places and share knowledge about natural
wonders.
3. Understand the importance of protecting natural resources.
Homework
1. 基础层：背诵4c短文，默写4个生词+比较级/最高级变化规则。
2. 提高层：仿照4d，写5组比较中国地理景观的对话（如
长江vs黄河，黄山vs泰山）。
3. 拓展层：用英语介绍一个自己喜欢的自然奇观，包含比较级
/最高级+大数字（80词左右）。
THANKS

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