资源简介

(共23张PPT)
Unit 3 Our digital lives
主题范畴：人与社会
主题群：科学与技术
子主题：
科学技术与工程，人类发明与创新
Key question
How has digital technology changed our lives
learn more basic information about laptops.
know what factors should be considered when purchasing a laptop.
develop some listening skills and ability about the topics.
Learning objectives 学习目标
At the end of the class, I will be able to:
laptop / l pt p/
screen /skri n/
weight /we t/
digital / d d tl/
n. 笔记本电脑
n. 屏幕
n. 重量
adj. 数码的
New words
They are shopping on the phone.
Guess, what are they doing
Lead-in
They are shopping in the market / outside.
Where are they shopping
They are shopping online.
Where are they shopping
Pre-listening
How do you choose a digital device
Li Na wants to buy a laptop online. Help her find out what she needs to consider. Discuss with your classmates and make a list.
Units we use to describe
a laptop:
size: inch
weight: kg
memory: GB (GigaByte)
price: yuan ( )
Size: How large is the screen
Memory: How much memory does the computer have
…
十亿字节
Task 1: Discussion
Li Na asks her friend Liu Wei for advice. Listen to the conversation and answer the questions below.
A new laptop
for a smarter life
While-listening
Task 2: Listen and answer
Listen to the conversation and answer the questions.
(1) What does Li Na mainly use the laptop for
(2) What kind of laptop does Liu Wei think Li Na needs
(3) Which laptop will Li Na most probably choose
She mainly uses the laptop to do her homework and draw pictures.
Liu Wei recommends a fast computer with a good touch screen.
She will most probably choose the 14-inch A101.
Listen again and complete the table.
Model Size Weight Memory Price
Lightning X
Spec 15
A101
13 inches
15 inches
14 inches
17 inches
1.5 kg
8 GB
4,998
2 kg
32 GB
8,600
2 kg
2.5 kg
32 GB
7,500
Task 3: Listen and complete
Discuss the questions below.
(1) What digital devices do you have at home
(2) How do you use them to help with your study and daily life
Task 4: Discuss and share
Post-listening
Tape script
Li Na: Hi, Liu Wei. I’m looking at some reviews of laptops. I need to buy a new one.
Liu Wei: Maybe I can help you. What do you usually use the laptop for
Li Na: I mainly use it to do my homework, such as searching for information for my project, doing my online homework. And I also use it to draw pictures. You know, I love using drawing software!
Liu Wei: I see. In that case, I think you need a fast computer with a good touch screen. Maybe you should look at the Lightning X. It has a touch screen and comes in different sizes.
Li Na: That sounds good.
Liu Wei: The 13-inch model weighs 1.5 kg and has 8 GB of memory. The price is good too. It’s only 4,998.
Li Na: Oh, 4,998 That’s not bad, and 1.5 kg is light, but 8 GB perhaps is not enough memory.
Liu Wei: How about the Spec 15 It’s a bit heavier at 2 kg, but the screen is 15 inches and it has 32 GB of memory.
Li Na: How much does it cost
Liu Wei: It’s a bit more expensive: it costs 8,600. What about the A101 There are two models. The 14- inch and the 17-inch. The 14-inch weighs 2 kg and the 17-inch is 2.5 kg.
Li Na: But 2.5 kg is too heavy. Can you tell me about the 14-inch
Liu Wei: Sure. It has 32 GB of memory and costs just 7,500. It’s the latest model. One special feature is its amazing touch screen. It’s definitely good for drawing.
Li Na: Wow! That’s good.
screen
keyboard
mouse
speaker
battery
microphone
touchpad
monitor
CPU (Central Processing Unit)
n. 屏幕
n. 键盘
n. 鼠标
n. 扬声器
n. 电池
n. 麦克风
n. 触摸板
n. 显示器
中央处理器
通常指外接的，非笔记本电脑的屏幕
笔记本电脑上的鼠标替代品
词汇拓展
help me with my studies and daily life
communicate with classmates
read e-books and watch videos
watch programmes and movies
relax ourselves
帮助我的学习和日常生活
与同学交流
阅读电子书和看视频
看节目和电影
放松我们自己
短语句式
1. laptop / l pt p/ n. 笔记本电脑
例如：你觉得这种笔记本电脑的功能怎么样？
What do you think of the functions of this laptop
拓展
laptop = laptop computer
laptop为合成词，lap意为“（人坐下时的）大腿面”，top意为“……之上”，二者合成衍生“膝上型电脑”之意，即便携式笔记本电脑。
Language points
2. screen /skri n/ n. 屏幕
main unit 主机
keyboard 键盘
mouse 鼠标
monitor 显示器
3. weight /we t/ n. 重量
例如：他正在努力减肥。
How much do adult giant pandas weigh at most
词性转换
weigh v. 称重；权衡；掂量
例如：成年大熊猫的体重最多有多少？
He’s working at losing weight.
4. digital / d d tl/ adj. 数码的
例如：20年前我买了我的第一台数码相机。
I bought my first digital camera twenty years ago.
例如：信号将被转变成数字编码。
The signal will be converted into digital code.
1. Finish the exercises.
2. Preview Grammar on P41-P42.
Thank you!

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