(共27张PPT)
Grammar
上
（沪教2025版）八年级
Unit 3
Our digital lives
Learning objectives
00
Lead in
Presentation
2
Practice
Production
4
Deepthinking
Summary
6
Assessment
1
3
5
7
Homework
8
By the end of the lesson, I will be able to...
1
2
3
master the rules of forming comparative and superlative adjectives and use them correctly in sentences;
use comparative and superlative adjectives to describe and compare things, and conduct interviews and summaries;
understand the development of digital technology and think about the relationship between humans and technology rationally.
00
Learning objectives
https://www.21cnjy.com二一教育
Lead in
01
https://www.21cnjy.com二一教育
Watch and say
What do you learn about the computer from the video
Lead in
01
https://www.21cnjy.com二一教育
Let's talk.
What do you think of these computers How are they different
Lead in
01
https://www.21cnjy.com二一教育
Let's talk.
What do you think of these computers How are they different
When we compare two people or things, we can use __________________________________.
When we compare more than two people or things, we can use ____________________________________.
Presentation
02
https://www.21cnjy.com二一教育
Comparative and superlative adjectives
the comparative form of the adjective
the superlative form of the adjective
形容词的比较级和最高级
https://www.21cnjy.com二一教育
Presentation
02
Read the dialogue between Su Mei and Su Wen.
Pay attention to the words in bold.
Su Mei: Oh, what's this
Su Wen: It's a computer from the 1940s. You know what The first
computers were bigger than cars. Nowadays, computers are
much smaller and better.
Su Mei: I see. Besides size, what else is different
Su Wen: Computers today are much faster than before.
Su Mei: That must be true. Some computers are
even smarter than human beings.
Su Wen: No, I don't think so. I think human beings are
the smartest. After all, we invented computers.
much + adj.比较级+than 比……得多
even + adj.比较级+than 比……更……
Please find out the comparative
and superlative adjectives
Presentation
02
Adjective Comparative adjective Superlative adjective
big bigger biggest
smart smarter smartest
interesting more interesting most interesting
Presentation
02
https://www.21cnjy.com二一教育
Let's sum up the rules!
To form comparative adjectives, we often add -er to an
adjective with one or two syllables and use more with adjectives
of three or more syllables.
We often use than after comparative adjectives.
To form superlative adjectives, we often add -est to an
adjective with one or two syllables and use most with adjectives
of three or more syllables.
We usually use the before superlative adjectives.
一到两个音节
三个或更多个音节
Presentation
02
https://www.21cnjy.com二一教育
单音节和部分双音节，一般直接在词尾加er/est
形容词比较级和最高级的规则变化
tall
taller
tallest
clever
cleverer
cleverest
Presentation
02
https://www.21cnjy.com二一教育
形容词比较级和最高级的规则变化
nice
nicer
nicest
fine
finer
finest
结尾有不发音的e，去e加er/est。
nice：The digital book is nice.
nicer：The new digital tablet is nicer than the old one.
nicest：This is the nicest digital assistant I've ever used.
Presentation
02
https://www.21cnjy.com二一教育
形容词比较级和最高级的规则变化
重读闭音节“辅元辅”结构，双写末尾辅音字母加er/est。
sad
sadder
saddest
hot
hotter
hottest
sad： The old digital camera is sad.
sadder：Losing the digital pictures is sadder than breaking the camera.
saddest：It's the saddest thing when digital data gets lost forever.
Presentation
02
https://www.21cnjy.com二一教育
形容词比较级和最高级的规则变化
easy
easier
easiest
lucky
luckier
luckiest
以辅音加y结尾的，变y为i加er/est。
easy： It's easy to find information with digital tools.
easier：It's easier to talk with friends online than to write letters.
easiest：Among all digital ways, using apps is the easiest to shop.
Presentation
02
https://www.21cnjy.com二一教育
形容词比较级和最高级的规则变化
careful
more careful
most careful
exciting
more exciting
most exciting
多音节前加more/most。
careful： We should be careful when using digital devices.
more careful：We need to be more careful with our personal information in
digital lives.
most careful：Among all digital activities, we must be the most careful when
dealing with online payments.
Practice
03
https://www.21cnjy.com二一教育
1 Complete the conversation with the comparative or
the superlative form of the adjectives in brackets.
Su Wen: Did you watch that science show on TV
last night It was about chess computers.
Su Mei: No, I didn't. Was it interesting
Su Wen: Yes! Scientists designed (1)___________ (early) chess computers in
the 1950s. At the time, the computers could not beat human players.
Even ordinary people were (2)_________(good) than these first chess
computers. But in 1997, a computer named Deep Blue won a chess
match against the world champion. This was (3)__________________
(famous) chess game against a computer in history.
the earliest
better
the most famous
Practice
03
https://www.21cnjy.com二一教育
1 Complete the conversation with the comparative or
the superlative form of the adjectives in brackets.
Su Mei: Wow, that's a big victory for artificial intelligence (AI)!
Su Wen: Indeed! Back then, Deep Blue was (4)______________________
(powerful) chess computer in the world. But now, an ordinary
computer can beat (5)__________ (good) human players.
Su Mei: Well, that may be true, but humans invented AI.
Also, computers cannot think like we do. That
means humans are still (6)__________ (smart)
than computers!
the most powerful
the best
smarter
Role Play
Evaluation (评价机制) Stars
Language (语言表达正确)
Content (内容完整充实)
Pronunciation (发音标准清晰)
Performance(整体表现优秀)
Excellent Great Good
Production
04
Grammar in use
2 Interview your teachers and classmates about their attitudes towards
digital technology. Write questions with comparative and superlative
adjectives before you start.
Grammar in use
>>>
Which do you think is more convenient to read, e-books or
print books
Does ... make your life easier or harder
Is it safer to make new friends online or offline
...
Which do you think is more interesting, playing online games or playing traditional board games
Is learning online more effective than learning in a classroom
Which social media platform do you find the most user - friendly
Does using translation apps make learning a new language easier or harder
Is it more fun to watch movies online or in a cinema
Example
Production
04
Grammar in use
3 Summarize the information you collected in Exercise 2 and share
your findings with the class. You may begin your summary with the
following sentences.
Grammar in use
>>>
Most of my classmates / teachers think that it is more convenient to ...
Some say it is safer / easier to ...
Most of my classmates think that it is more convenient to read e - books. They can carry a large number of e - books on a single device and read them anywhere. Some say it is easier to learn online because they can access courses at any time and review the content as many times as they want. When it comes to making new friends, most teachers think it is safer to make friends offline. They believe that face - to - face interaction helps people know each other better and avoid potential risks from online interactions. As for entertainment, many classmates find that watching movies online is more fun as they can choose from a huge variety of films and watch them in the comfort of their own homes. However, a few classmates still prefer going to the cinema, saying that the big screen and surround sound make the movie - watching experience the most exciting.
Example
Deep thinking
05
With the development of AI, some computers are even smarter than human beings. Do you think humans are still the smartest Why or why not
Think about the relationship between humans and technology and the uniqueness of human beings.
Summary
06
The early computers were (1)________ (big) than buses. Today's computers are much (2)________ (small) and (3)________ (fast). People are wondering
whether computers are becoming (4)__________________ (intelligent) than human beings. The answer is “No”: your brain is probably (5)____________
_________ (complex) thing in the world, and it can do many things that computers can't. Even (6)__________________ (powerful) computers in the world cannot be creative. However, when it comes to certain tasks, computers are already able to do a better job than human beings. For example, they can analyse hospital X-rays in a much (7)__________ (short) time than humans can. But will computers one day be (8)__________________(capable) than human doctors at all tasks We just have to wait and see.
用括号中形容词的比较级或最高级完成短文。
bigger
The grammar we have learned
smaller
faster
more intelligent
the most
the most powerful
complex
shorter
more capable
The grammar we have learned
Summary
06
形容词
比较级和最高级
定 义：（比较级）用于比较两个人或事物。表示“更……”。
（最高级）用于比较三个人或更多的人或事物。
构成规则：
比较级句式结构：
1）一个音节的形容词和一些两个音节的形容词，使用-er和-est。
2）较长的形容词（三个音节或更多）和一些两个音节的形容词，
前面加more和most。
3）以-y结尾的两个音节形容词，将-y替换为-ier和-iest。
4）一些短形容词需要将最后一个辅音字母双写。
1）A is ...er than B
2）A is more ... than B
3）A is as ... as B. (同级比较)
特殊用法和注意事项：
最高级句式结构：
1）A is the ...est in/of ...
2）A is the most ... in/of ...
1）比较级前可加词：much, far, a lot, a little, even, still等。
2）最高级前常加“the”。
3）构成句子时，形容词比较级与than一起使用。
Assessment
07
Self-assessment
I can master the rules of forming comparative and superlative adjectives and use them correctly in sentences.
I can use comparative and superlative adjectives to describe and compare things, and conduct interviews and summaries.
I can understand the development of digital technology and think about the relationship between humans and technology rationally.
Basic (基础)
Improving(提升)
Extend (拓展)
Homework
08
1. 背记形容词比较级和最高级的构成规则、句式结构和特殊用法。
2. 总结在练习2中收集到的信息，并在下次与全班分享。
写一篇短文，用形容词的比较级和最高级描述数字设备（如手机）的变化。
查找更多关于数字设备变化的信息并写一份简短报告（可选，供感兴趣的学生完成）。
https://www.21cnjy.com/recruitment/home/fine
Thanks!
