Unit 3 Computers
Period 1
Warming up
Heavy!
Difficult!
Hard!
Tired!
keyboard
mouse
monitor
screen
speaker
host computer
camera
What do they have in common?
an abacus
a calculator
a desktop
a notebook computer
a laptop
digital camera
a robot
(What do they have in common?)
I think that…
In my opinion…
I believe that…
What’s your reason?
Why do you think so?
1.They can be used for calculating.
2.They can deal with
maths problems.
3.They are our friends.
4.They are useful and helpful.
Discussion
work for us in Mars(火星)
What’s next?
carry things
work in wars (战斗)
仿真机器人
entertainment
娱乐
What do you think will be the next development?
CD -- DVD-ROM
---DVD RW
CRT monitor
LCD monitor
CPU
hard disc
chips
/motherboard
some hardware:
使用阴极射线管(Cathode Ray Tube)的显示器
Liquid Crystal Display
keyboard
mouse
modem
scanner
printer
speaker
floppy disc/disk
USB flash disc
CD/VCD/DVD
MP3 player
MP4 player
Memory:(存储器)
移动硬盘
USB
Flash disc
1 TB 固态硬盘
T
硬盘
Hard disc:
Core 2 Duo
酷睿2 : 4核
龙芯8核
cpu:
other useful words and expressions about computer:
Network网络
Virus　病毒
Download 下载
Up load 上传
Program　程序
Website　站点
Hacker 黑客
Home page 主页
Password　密码
Desk top 桌面
User name 用户名
Click 点击
Software 软件
Hardware 硬件
Home page 主页
Reading:
Who am I?

Read the whole passage as fast as you can.

Try to get the main idea of this passage .

Find out the topic sentence of each paragraph
and underline them.
skimming
The topic sentence of each paragraph.
skimming
Para 1
Para 2

Para 3
Over time I have been changed a lot.
Those changes only became possible as memory improved.
Since 1970s many new applications have been found out for me.
Choose the main idea of this passage.
skimming
The computer wants to find “who he is”.

B. The function(功能) of the computer.

C. The computer becomes popular around the world.

D. The history and the applications of the computer.
Skimming:
Read and answer these questions:
2. Who was the first person to invent the earliest computer?


3. Who was the next important person to design computers?
Charles Babbage
Alan Turing
1. Who am I?
A computer.
timeline
1642:
1822:
1936:
1940s:
1960s:
1970s:
Now:
Scanning:
The computer began as a calculating machine.
the Analytical Machine was built by Charles Babbage.
The computer grew rapidly both in size and in brainpower.
Computer had grown as large as a room.
Computers were used in officers and homes.
Computers connect people all over the world together.
the first family of computers was connected to each other
The history of
computers
the second generation
(1956-1963)
the third generation
(1964-1971)
the fourth generation
(1971- )
The first generation
(1945-1956)
The development of computers:
Calculating machine
Analytical machine
Universal machine
Artificial intelligence
Computer
Internet
计算器
分析机
万能机,通用机器
人工智能
calculating
analytical
universal
mathematical
problems
Medical operations
Memory
Transistors
Applications
Communication
Trade
Intensive reading:
Underline the phrases &sentences that you think are important
Star sentences:
P1 L2 I _______instructions from cards with holes.
P1 5 Earlier I was not very big, but then I became ______ .

P1 L6 However, people thought I was ___________ until they _________ I had “artificial intelligence.”
我执行穿孔卡的指令
早些时候我并不是很大，但是后来我变得非常大
可是，人们认为我头脑简单， 直到发现我有人工智能时，
他们才不那么想了。
followed
huge
simple-minded
discovered
P1 L8 As the years have ________, I have been made smaller and smaller.

P2 L1 There were ______ when my size was ________changed.

P2 L3 But I was always so lonely _______ there by myself, until in the early 1960s,they gave me a family ________ by a network.
随着岁月的流逝， 我被做得越来越小了.
有段时期我的体积完全变了
但是我总是孤孤单单地站在那里，直到60年代初， 人们才
给了我一个用网络连接的家庭。
gone by
times
totally
standing
connected
Advantages and disadvantages of the computers.
Discussion
advantages
we can
communicate with friends
listen to the music
see films & watch news
play games
do shopping
save a lot of time
do a lot of useful things
Disadvantages

Some people especially the teenagers abandon (沉迷于) themselves to the computer games and chatting on the Internet. As a result, they have little time to study .

Some people use the computer wrongly.
Homework
Review the text
Recite Para one
Finish Ex. 1/2 on Page 20.
Thank you for
your attention!
December 10th, 2013