who am i[上学期]

(共24张PPT)
Welcome to my class!
I am very old now. I was born in China. Many people used me for calculating(计算) in the past, but now I am a bit lonely because they don’t like me now.
Do you know who I am
abacus
Guess :
I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical(数学的) problems.
Do you know who I am
calculator
Do you know who I am
What can I be used for
What can I be used for
Dealing with informations
Communicating with each other
Sending e-mails
calculating
Watching movies
Playing computer games for entertainment
Who am I
Reading
Skimming
3.When & where was the first computer made
1.Who was the first person to invent the earliest computer
2.Who was the next important person to design computers
In 1642
In France
Charles Babbage
Alan Turing
1.Where were you in 1642
3 What were you called in 1936
4 What did you get in the 1960s
What happened to you in the 1970s
2 What happened to you in 1822

Scanning
1642:_______________________________________________
____: The Analytical Machine was made by Charles Babbage.
1936: _______________________________________________
______________________________________________
1960s:______________________________________________
______________________________________________
_____:The first family of computers was connected to
each other.
1970s:______________________________________________
Now:_______________________________________________
I began as a calculating machine in 1642 in France.
1822
1960s
Alan Turing wrote a book to describe how computers
could be made.
Computers had new transistors and became smaller
and smaller.
Computers connect people all over the world together.
Computers were brought into people’s homes.
The computer
In which order is the text organized
In which order is the text organized
Timeline
Choose the best answer
1) What’s the main idea of the text
A. The computer wants to find “who he is”.
B. The functional change of the computer.
C. The computer becomes popular around
the world.
D. The history of the computer.
Comprehending:
2) What can you infer from the text
A. The computer has no artificial intelligence.
B. The computer changes a lot over the
years.
C. The computer was not connected by a
network until in the early 1970s.
D. Now the computer can only be used to
deal with information.
Listening: T or F
Alan Turing built an Analytical Machine to solve any mathematical problems.
People began to realize that the computer got cleverer and quicker with time passing.
The computer began to serve the human race since it was brought into people’s homes.
Since the 1970s, the computer was used by people around the world through the Internet.
5. The larger the computer is, the more memory
it has.
F
T
F
T
F
Q1: How did the computer work as
an Analytical Machine
The computer followed instructions
from cards with holes.
Q2: In which way did computers talk to
humans
Using BASIC.
Q3: What does “others” (2.6) refer to
Other computers.
3. Questions
Q4: Why did people think the computer was simple-minded
Because the computer was made as a calculating machine and was used to solve mathematical problems.
a personal computer
a calculating machine
an analytical machine
a notebook computer
a huge computer
1
2
3
4
5
Q5: In how many ways do we say the computer changed What are they
Size:
Intelligence:
Speed:
Function:
People’ opinion:
smaller
quicker
cleverer
calculating----dealing with …, communicating with…
simple-minded----clever & useful
Summary
The history of computers
Discussion: What will future computers be like &What will its newest function be
virtual keyboards
虚拟键盘
Nose-top
keyboard-vest
Homework:
Write a passage to describe your future ideal computer.