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(共18张PPT)
Unit 4 Amazing Plants and Animals
Lesson 3 Grammar Focus (Section A 3a–3c)
The blue whale is the largest and 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.
Which parts of speech(词性)have superlative forms
adj.
adj.
adj.
adv.
adj.
adj.
最高级形式主要适用于形容词和副词，
用以在三者及以上的人或事物中进行比较。
Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb
3a
形容词、副词的最高级用于三个或三个以上的人或事物之间的比较，常用of/in/among短语来说明比较的范围。
形容词最高级前要加定冠词the，
副词最高级前的the可省略。
定义
特点
形容词、副词的最高级
It is the most popular cinema in the city.
He is the tallest of the three.
He runs (the) fastest.
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 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.
Do you know the rules
以e结尾的词 + -st
双音节词(变y为i) + -est
单音节词(双写g) + -est
一般单音节词 + -est
most + 双音节词
most + 多音节词
音节；是否是规则变化
3a
3a
(1) 规则变化
构成方法 原级 最高级
单音节词和部分双音节词 tall; short; fast tallest；shortest；fastest
large; late largest；latest
big; fat; thin biggest；fattest；thinnest
easy; heavy; early easiest；heaviest；earliest
多音节词和部分双音节词 beautiful; popular most beautiful；most popular
形容词和副词的最高级的构成
1.一般情况下，最高级词尾加-est
2.以字母e结尾的词，最高级词尾加-st
3.重读闭音节词尾只有一个辅音字母时，先双写该辅音字母，然后最高级词尾加-est
4.以“辅音字母+ y”结尾的双音节词，先把y改为i，然后最高级词尾加-est
5.词前加most构成最高级
原级 比较级 最高级
good / well better
bad / badly worse
many / much more
little less
far farther
further
best
worst
most
least
farthest
furthest
(2) 不规则变化
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 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.
最高级有范围吗？
是的，最高级通常有范围。这个范围是区分比较级和最高级的关键。
3a
1. The blue whale is the largest and heaviest animal in the world.
2. The biggest land animal in the world is the African elephant.
3. The cheetah runs the fastest among all land animals.
4. She is the most hard-working of all the students.
5. This apple is the sweetest of the five.
What do these sentences have in common
How to use
1. “主语+ V+ the+形容词最高级+in/of /among...短语”意为
“……是……中最……的”。
最高级的常用句型
1. The gingko tree is one of the most ancient living trees on earth.
2.The gingko tree is one of the most common trees in streets, parks, and gardens across China.
3.One of the most popular activities is to take a walk under gingko trees.
one of
＋the＋最高级
＋名词复数
How to use
4.Tianjin is one of the biggest cities in China.
2. “主语+be+ one of the+形容词最高级+可数名词复数+in/of 短语”意为“……是……中最……的……之一”。
最高级的常用句型
1. Which do you think is the most beautiful, the rose, the peony, or the lotus flower
2. Which animal jumps the highest, the lion, the monkey, or the tree frog
How to use
3.Who is the tallest, Tom, Kate or Bill
4.Which city do you like best, Beijing, Shanghai or Guangzhou
3. “疑问词+主语+动词（+the)+最高级，A、B or C？”哪一个最……，A，B，还是 C？
最高级的常用句型
最高级的常用句型
4.“主语+be + the+序数词+形容词最高级+可数名词单数+in/of短语”意为“……在…… 中是第几……的……”。
The Yellow River is the second longest river in China.
Tom is the first tallest boy in Class 8.
1.He runs faster than anyone in his class.
2.This movie is more moving than any other I’ve seen.
他比班上任何人都跑得快 → 他是班上跑得最快的。
这部电影比我看过的任何一部都感人 → 这是我看过的最感人的电影。
5.比较级表示最高级的用法:当句子中出现 (more) than + 比较范围（如 anything, anyone, any other...） 时，常隐含最高级含义。
How to use
Practice
1. The panda is one of ______________ (friendly) animals in China.
2. The Yangtze River is ______________ (long) river in Asia.
3. I think math is _________________ (difficult) subject of all.
4. My mom gets up ______________ (early) in my family.
5. This is ___________________ (interesting) book I have ever read.
the friendliest
the longest
the most difficult
(the) earliest
the most interesting
Among all animals, I love pandas the best. I think they are __________ (cute) animals in the world.
Which do you think is _________________ (beautiful), the rose, the peony, or the lotus flower
Look at that butterfly! It has __________________ (colourful) wings.
Which animal jumps ___________ (high), the lion, the monkey, or the tree frog
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
heaviest
the most colourful
(the) highest
the largest
stand up to 高达
weigh up to 重达
Complete the sentences with the superlative forms of the words in brackets.
3b
1.What is this
—It's ...
2.What do you think of it
—It's ...
3. What do you know about it
Do you want to know more about it
...
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
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 most common
the most popular
thousands of 成千上万的
People believe... 相当于It is believed that... “人们相信.....”
the best
in mid-October 在十月中旬
it’s the best time to do sth. 此时正是做某事的最佳时间
Complete the passage with the superlative forms of the words in the box.
3c
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
Let’s play a game!
friendly
sing well
hard-working
popular
thin
jump high
smart
funny
A:Who sings (the) best in your class
B: …
A:Who is the thinnest in your class
B: I think …
I want to know you!

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