资源简介

(共27张PPT)
Unit 4
Amazing Plants and Animals
人教版 英语（八年级上册）
Section A
Grammar Focus
1. talk about some amazing plants and animals.
2. learn to make comparisons using superlatives.
3. summarize the rules and usage of the superlatives.
Learning Objectives
Warming Up
Watch this video and tell me what it is about.
Look and say.
The sheep is large and heavy.
The cow is _______________.
The horse is the _______________.
larger and heavier
largest and heaviest
The penguin is big.
The elephant is _________.
The blue whale is the _________.
bigger
biggest
The fox runs fast.
The tiger runs ________.
The cheetah runs the ________.
faster
fastest
The rose is useful and interesting.
The sunflower is ____________________.
The bamboo is the ____________________.
more useful and interesting
most useful and interesting
Complete the conversations.
The blue whale is the
__________________
animal in the world.
What’s amazing about
the blue whale
largest and heaviest
the largest and heaviest
the biggest
____________ land animal in the world is the African elephant.
What’s the biggest land
animal in the world
The biggest
the fastest
The cheetah runs
_________ among
all land animals.
What’s amazing about
the cheetah
the fastest
the most useful and interesting
I agree. And it is perhaps_______________
plant in the world.
I think the most useful plant in the world is bamboo.
the most interesting
Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb
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
副词
fast-faster-fastest
形容词, 副词同形
类似还有：high，hard
3a
Read the sentences and notice the words in red. What are the ways to form a superlative adjective or adverb
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.
( )
3a
副词最高级前的the可以省去哦
如果最高级前有形容词性物主代词或名词所有格等修饰语时则不再用定冠词the。
This is my worst performance.
She is Lucy’s best friend.
形容词和副词最高级形式的构成。
① 一般情况直接加 - est.
② 以不发音的-e结尾, 加 -st.
③ 以 辅音字母 + y 结尾, 变y为i 加 -est.
④ 以 重读闭音节 结尾, 双写词尾辅音字母 加 -est.
⑤ 多音节词和部分双音节词, 前加 most.
最高级的变化规则和比较级的相同吗？
tall → taller → tallest
large → larger → largest
happy → happier → happiest
hot → hotter → hottest
beautiful→ more beautiful → most beautiful
完全相同
形容词和副词最高级形式的构成。
你能把小球放置在合适的箱子里吗？
辅音字母 + y 结尾，变y为i + est
重读闭音节，双写尾字母 + est
多音节词及部分双音节词，前加most
一般 + est
以e结尾 +st
fastest
nicest
largest
hottest
thinnest
most
beautiful
most
carefully
earliest
easiest
happiest
形容词和副词最高级形式的构成。
那不规则变化呢？也完全相同吗？
完全相同
原级 比较级 最高级
good/ well
bad/ badly/ ill
much/ many
little
far
better
worse
more
less
farther/ further
best
worst
most
least
farthest/ furthest
备注：few — fewer— fewest
形容词和副词的最高级
最高级易考易错点
最高级应用的判断
1.最高级前面要加the.
形容词最高级前面必须加the
副词最高级前面the可以省略
最高级前加物主代词或名词所有格等，表示明确的所属关系时，不再使用the。
2.最高级表达一定要有范围.
in + [范围/群体/地方]
of + [具体的同类个体]
among + [模糊的群体]
1.是不是三者或三者以上在进行比较，三者或三者以上比较用最高级。
2.如果句末有in/of 短语来表示范围，则用最高级。
3.如果句中有one of the ...，就用最高级。
最高级的常用句型(一 )
句型 典例
1.主语+ be+ the+形容词最高级+in/of ... My mother is the busiest one of us.
The Yangtze River is the longest river in China.
2.主语+实义动词（+the）+副词最高级+in/of ... Tom works (the) hardest in Class 3.
3.主语+be+ one of the+形容词最高级+可数名词复数+in/of ... Hangzhou is one of the biggest cities in China.
最高级的常用句型（二）
句型 典例
疑问词+ be+ the+形容词最高级，A、B or C？ Who is the tallest, Tom, Kate or Bill
疑问词+助动词+主语+动词原形（+the)+副词最高级，A、B or C？ Which city do you like best, Beijing, Shanghai or Guangzhou
主语+be + the+序数词+形容词最高级+可数名词单数+in/of短语 The Yellow River is the second longest river in China.
Complete the sentences with the superlative forms of the words in brackets.
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
Find some mark words first.
3b
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 ___________________. 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
Read the passage in 3c again and complete the table.
Topic: An introduction to _________________ Origin (起源) Ginkgo trees first appeared over _______________________, making them one of _____________________________________ on earth.
Importance It is a symbol of _______________.
A famous tree The old ginkgo tree in the Zhongnan Mountains in _____________________ is the most beautiful. The best time to see it is __________.
Common place As one of the most common trees, people can see ginkgo trees in _______, _______, and _______ across China.
Popular activity When autumn comes, people usually _________ under ginkgo trees. They believe the bright yellow leaves can bring ______________.
the ginkgo tree
200 million years ago
the most ancient living trees
hope and long life
Shaanxi Province
mid-October
streets
parks
gardens
take a walk
joy to their heart
2. Whose birthday is it
06 课堂小测
Exercise
用括号内单词的正确形式填空。
1. (2025云南改编) Journey to the West is one of the ____________(famous) classic novels in China. People like reading it.
2. The Siberian tiger, known as the Northeast Tiger in China, is the __________ (large) tiger of all.
3. Basketball is one of the __________(big) sports in our school!
4. Though Monica did ________(badly) in the exam in her class, she still didn’t give up learning.
5. —What is the __________(high) world’s mountain
—Mount Qomolangma.
largest
biggest
worst
highest
most famous
6.Hainan is a very large Island. It is the second _________
island in China. (large)
7.Our teacher is as ______ as before. (busy).
8.He is __________________ among us. (careful)
9.Li Lei jumped far ______ than Jim. (far)
10.The busier he is, the ________ he feels. (happy)
busy
the most careful
farther
happier
largest
Homework
必做：
1.规则梳理： 在笔记本上整理一份形容词和副词最高级构成规则（规则与不规则）的思维导图或表格，并各举2个例子。
2.句型演练： 完成PPT中第14页（3b练习）和第16页（3c练习）的填空任务，确保使用最高级的正确形式。
3.造句练习： 使用最高级仿照例句写5个句子，描述你的家人、朋友或你所在的城市。
例句: My father is the busiest person in my family. / Shanghai is one of the biggest cities in China.
2. Whose birthday is it
Thanks
for watching!

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