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(共17张PPT)
Unit 3
Same or Different
Grammar Focus
Question
What are their differences
The giraffe is ______.
The deer is ______.
The giraffe is ______ than the deer.
tall
short
taller
The watermelon is ______.
The strawberry is ______.
The watermelon is ______ than the strawberry.
big
small
bigger
3a Read the sentences and notice the comparatives in bold. Find more examples in Section A.
There are more activities this year. It is more colourful than last year.
Emma is taller than Ella, but her hair is shorter than Ella’s.
Ella dances better than Emma, but Emma sings louder than her.
Emma always gets up earlier than me, but I work as hard as her!
句式结构：
(1) A + be + as +形容词原级 + as + B. A和B一样······
e.g. I am as smart as her.
(2) A + 实义动词 + as +副词原级 + as + B.A和B······一样······
e.g. I work as hard as her.
比较级
含义：表示“较······”或“更······一些”，用于两者之间的比较。
句式结构：
(1) A + be + 形容词比较级 + than + B.
e.g. Your plan is better than mine. 你的计划比我的好。
(2) A + 实义动词 + 副词比较级 + than + B.
He runs faster than I do. 他跑得比我快。
1. 一般情况，在词尾加-er
tall — taller short — shorter shy — shyer
2. 以字母e结尾的词，在词尾加-r
nice — nicer large — larger wide — wider
3. 重读闭音节词词尾只有一个辅音字母，先双写辅音字母，再加-er.
thin — thinner big — bigger slim —— slimmer
构成规则
构成规则
4. 以“辅音字母+y”结尾的双音节词，先把y改成i，再加-er.
easy — easier funny — funnier heavy — heavier
5. 多音节词和部分双音节词，在词前加more
outgoing — more outgoing
beautiful — more beautiful
special — more special
不规则变化
good / well — better
many / much — more
bad / badly – worse
little — less
far — farther / further
old — older/elder
Quick Check!
fast
faster
hot
hotter
important
more important
carefully
more carefully
large
larger
funny
funnier
good
better
1. Q: ______________________ ( Julie / slim / you)
A: No, she isn’t. She is as _______ as me.
2. Q: ______________________________ ( you / serious / your cousin)
A: No, I’m not. I am __________ than he is.
slim
less serious
Is Julie slimmer than you
Are you as serious as your cousin
3b Use the words in brackets to write questions and answers.
Let’s Practice
3. Q: ________________________ ( Tom / smart / Sam)
A: No, I don’t think so. I think Sam is as ________ as Tom.
4. Q: _______________________________ ( Jack / swim / fast /
Sally)
A: No, he doesn’t. He swims as ________ as Sally.
smart
fast
Is Tom smarter than Sam
Does Jack swim faster than Sally
Talk with Your Partner!
Now, ask and answer the questions in 3b. Use YOUR OWN information!
e.g.
A: Are you as serious as your cousin
B: No, I'm not. I am more easy-going than he is.
Facts Guangzhou Vancouver
Population (2024) 18.978 million 0.76 million
Area 7,436 square km 115 square km
Average rainfall per year 1,923 mm 1, 475mm
Average January temperature 16℃ 5℃
Average July temperature 31℃ 18℃
3c Look at the chart. Then complete the sentences to compare Guangzhou and Vancouver. Use the words in the box and then.
Guangzhou
Vancouver
1. The population of Vancouver was ___________ that of Guangzhou in 2024.
2. In area, Guangzhou is ___________ Vancouver.
3. It rains ______ in Guangzhou ___________ in Vancouver.
4. Guangzhou has a pleasant temperature in January. It is ______________ Vancouver in January.
5. Vancouver is ____________ Guangzhou in July.
large
small
much
warm
cool
smaller than
larger than
more
than
warmer than
cooler than
Can You Describe Them
Write a short passage to compare Guangzhou and Vancouver. You can use the sentences below to help you.
In size and population, Guangzhou is ______ than Vancouver.
In terms of rainfall, it rains ______ in Guangzhou.
However, the weather is quite different. In January, Guangzhou is ______. But in July, Vancouver is ______.
Your Turn! AI City Challenge
e.g.
Beijing has a larger population than Paris.
Paris is older than Beijing.
The subway in Beijing is as convenient as in Paris.
Use an AI tool to research TWO cities you like. Write 3 comparative sentences.
Summary
Rules:
-er, -r, double+-er, -ier, more
Irregular: good/better, bad/worse...
Structures:
1. A + be + 形容词比较级 + than + B.
2. A + 实义动词 + 副词比较级 + than + B.
3. A + be + as + 形容词原级 + as + B.
4. A + 实义动词 + as + 副词原级 + as + B.
Homework
必做：
1. Review, copy and memorize the rules.
2. Complete the after-class exercises.
选做：
Compare with a friend/family member. Write 5 comparative sentences.

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