Who am I ?

3

2

1

1. How many 1. How many pictures have you pictures have you seen?seen?

2.Can you remember 2.Can you remember what they are?what they are?

PDA

abacus calculator huge computer

PC

laptop

What do they have in common?

What do they have in common?

• I think that…• In my opinion…• I believe that…

1.They can be used for

calculating.

2.They can deal with

maths problems.

3.They are useful and

helpful.

Discussion

PDA

abacus calculator huge computer

PC

laptop

What’s next?

仿真机器人What’s next?

carry things work in wars ( 战斗 )

work for us in Mars( 火星 )

25

Who am I ?

3.Find out topic sentences of each paragraph.

1. Over time I have changed quite a lot.

2. These changes only became possible as my memory improved.

3. Since the 1970s many new applications have been found for me.

2.Get the main idea of the passage.The ___________ and__________ of computers development applications

1.Who am I ? I am a ________.computerPersonification( 拟人）— simple, vivid( 生动的 ), interesting

Task 1: skimming

Task 2 Scanning

Read Para. 1 in 3 mins and find out the development of computers. I’ll give you some clue( 线索 ).

The machine is introducing itself mainly according to _______? A. function B. time C. size

1936

(1822)

16421642

1940s1940s

Later

a calculating machine

an analytical machine Charles Babbage

a universal machine Alan Turing

a huge computer, as large as a room,

a personal computer and a laptop, and used in offices and homes since the 1970s…

Over time I have changed quite a lot.30

Para. 2Para. 2

technical words

chipchip（芯片）（芯片）transistortransistor

（晶体管）（晶体管）tube(tube( 电子管）电子管）

networknetwork（网络）（网络）

the World Wide Web

（万维网）

Para. 2

Read it in 2 mins and use another minute to put forward a question for your classmates.

35

Para.3

Find some supporting details for the topic sentence in 1 minute.

Since the 1970s many new applications have been found for me.

Since the 1970s many new applications have been found for me.• communications• finance• trade• robots• mobile phones• medical operations• space rockets • exploring the Moon and Mars

my goal is to provide humans with a life of good quality.

Name : computer Born : (time)_______ (place) __________

My real father: _______________My size: 1._______________( in the past) 2.____________________(modern)My history: 1. 1642 ___________machine 2. 1822__________machine 3. 1936 __________machine 4. 1940s ______________

5. 1970s _______ and ______My memory: _____ ______________ _____ My applications: _______________; ________; _______________; ________; _______________; ______________; _______________...

1642 France Alan Turing

hugesmaller and smaller

analytical calculating

universal

laptopPCtubes transistors chips

communication financerobot

mobile phonespace rocket

medical operationtrade

huge computer

Retell it with the first person

38

A summary

Time order (logic)

• Find out the time phrases words or sentences used in the text.

Over time, It took …..before….. After…. At that time, From then on, By the 1940s, As time went by, First, then as my memory improved, As I grew older, Until in the early 1960s, Since the 1970s

What’s the type of the passage?

A. Argumentation 议论 B. Narrative 记叙 C. Exposition 说明

We can use the computer to do a lot of things.

listen to musicWatch moviessearch for …

communicate with… do shopping

What are the advantages and disadvantages of the computers?

Discussion (in groups)

school workgamesemailsmusic and filmschatinformationphotosshopping

advantages

disadvantages:

1. waste too much time in playing computer games.

2.may be cheated ( 欺骗 ) on line.

3. bad for our eyes and health if we spend long time on it.

Advanced words and phrases• Obviously/admittedly• be beneficial to sb • It is convenient for sb to do sth • A source of information• A popular trend

• Be addicted to sth be harmful to a waste of time• Prevent people from communicating with each other face to

face• The two-edged sword• ,which makes/enables/helps…..• It is how to strike a balance between a and dis that counts• It is essential that…..• Only when we adopt an appropriate attitude towards ….can it

serves us well

What have you learned?

summary( 小结 )

Homework

某英文报“读者来信”专栏正在就高三学生家长是否应该为孩子购置电脑这一话题开展讨论。有赞同的，也有反对的。请你向该报编辑写一封英文信，发表你的观点。

要求：条理清楚、行文流畅 字数 100 左右

What is it in English??

Main board( 主板 )

What is it in English?

CPU (central processing unit)

中央处理器

What is it in English?

hard disc

硬盘

What is it in English?

Keyboard ( 键盘 )

What is it in English?

Monitor显示器

Screen 屏幕

What is it in English?

mouse

鼠标

DVD ROM数字通用光盘

What is it in English?