人教版必修二Unit3ComputersPeriod1Warming up课件(38张)

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7. What does W.W.W mean?
8. What can computers be used to do in our daily life?
notebook computer /laptop World wide web
……
Do you think the computer really helps to your study? Why?
Warming up Page 17
Riddles(谜语):
A handbag?
A toy?
Riddles(谜语):
I am very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonely because they don’t like me now.
Conclusion There is no doubt that computer has two sides, too. If we make good use of it, it will make our lives more colorful and convenient. But don’t lose yourself in playing computers. Just remember: Keep fit, study well and work hard.
有人预测现行的计算机体系将在2010年遇 到无法逾越的障碍。
但从目前的技术发展趋势来看,新技术不 断被应用到计算机行业,Moore定律至少到 2010年仍会有效,届时计算机的基本构造 应不会有大的改变。
另一方面,在沿着传统框架发展高性能计算 机的同时,一些新型的计算机体系也已被提 出,有些已从根本上突破了冯.诺依曼计算机 体系与电子技术的局限,这方面的工作得到 了多方面的重视。
Besides computer, what else can we get information from?
How much do you know about computers?
1. What does IT mean?
information technology
2. How to speak 科学技术 in English? science and technology
Do you know who I am?
abacus
Riddles(谜语):
I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems.
2019-2020学年度人教版必修二 Unit3Computers Period1Warming up
Computers
Words and expressions
words and expression
数学的
Mathematical
计算器 Calculator (n.)
Vt. Calculate
(1) the part of the computer that looks like a television.
(2) the part of the monitor that you look at.
(3) something you use to click on things (files, etc.)
Give the English name for the computer components (组件)
host computer 6
monitor
3 4
screen
1
keyboard
5
speaker
2
mouse
What is it in English??
Main board(主板)
What is it in English??
Do you know who I am?
Notebook / laptop
In pairs discuss what they have in common.
An abacus is an old calculating machine used in China until now.
A calculator is a new calculating machine which can solve a large number of mathematical problems.
A huge computer is
built to solve some
mathematical
problems. But it is
too big.
A PC is a personal
computer which
can solve all kinds
of problems and is
widely used now.
think so?
helpful.
What do they tell you about the development of computers?
calculator huge computer
abacus What’s next?
PC laptop
robot
PDA
Discussion
What do you think will be the next development?
What do you think will be the next development? do you think 为插入语, 位于特殊疑问句中 间,不必用逗号隔开。
作插入语的其他的动词还有 believe,imagine, suppose, consider, suggest等。 注意:疑问词在句中作主语时, 将插入语放 在疑问词后、谓语动词之前,其他不变,如 将插入语撤走原句式不变:
Make good use of it but never get trapped by it.
Giving an opinion:
• I think that… • In my opinion… • I believe that… • I agree because…
• I disagree because…
What will be the next development?
疑问词在句中不是作主语时,如作状语, 将插入语放在疑问词后,其他成分要成为 的宾语从句,即要用陈述语序。
Why do you think she was late again? When do you consider she will arrive?
type my homework
draw pictures
play games
Computer and Internet
watch movies
……
communicate gather information listen to
with my friends. for my lessons
music
信息技术 IT
Information Technology
个人电脑 PC
Personal Computer
依...看,据...认为
In one’s opinion
优点
advantage
缺点
disadv
掌上电脑 palmtop
How much do you know about a computer???
未来高性能计算机目前可分为量子、超导、 光子和DNA计算机四种类型。
in common: for or by all of a group 共同的;共有的;共用的
the land owned in common by the residents 居民共有的土地 in common 常常同have连用,如: have nothing in common 无共同之处 have little in common 几乎无共同之处 have something in common 有一些共同 have a lot in common 有许多共同之处
Do you know who I am?
calculator
Riddles(谜语):
I can be used for calculating. Besides, I can also be used for watching DVD, sending e-mail and communicating through the Internet. However, I am not a PC, because I’m small enough for you to take me with you.
PDA
A laptop is a kind of useful computer which can be taken conveniently like a notebook.
robot
仿真机器人
Discussion
(What do they have in common?)
• I think that… 1.They can be used
display card 显卡
What is it in English??
hard disc 硬盘
What is it in English??
DVD ROM
数字通用光盘
USB Flash Disk floppy disc
modem
printer
scanner
Work out the names
CPU (central processing Unit)
中央处理器
What is it in English??
RAM (随机存储器) (Random Access
Memory )
What is it in English??
Power supply (电源)
What is it in English??
• In my opinion… for calculating.
• I believe that… 2.They can deal with
• What’ s your
maths problems.
reason?
3.They are our friends.
• Why do you
4.They are useful and
3. What does PC mean?
Personal Computer
4. How to speak 人工智能 in English? artificial intelligence
5. What does PDA mean?
personal digital assistant
6. How to speak 笔记本电脑 in English?
(4) the part of the computer that you type on.
(5) the part of a computer that stores information.
(6) The part of computer that we can put a CD in.
monitor screen mouse keyboard hard disk DVD-ROM
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