课件37张PPT。Unit 3 ComputersGuess! A toy?A handbag?Computers 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.
Do you know who I am?abacusGuess more: I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems.
Do you know who I am?calculator 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.
notebook computerDo you know who I am?A huge computerA PCPalmtop abacuscalculatorNotebook computer Discussion 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 mathematical problems.
3.They are useful and helpful. ……Who am I ?Skimming: Go over the story to find out who the speaker is. Write down 3 sentences to support your idea. ● “However, people thought I was
simple-minded until they discovered I had
‘artificial intelligence’.”
●”My real father was Alan Turing ....”
● “Then in 1822 I was built as an Analytical Machine by Charles Babbage.”TimelineThe computer began as a calculating machine.1822Alan Turing wrote a book to describe how computers could be made to work.Computers had new transistors and became
Smaller.1960sComputers were brought into people's homes. Computers connect people all over the world
together.Scanning:In which order is the text organized?True or False
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.
FTFTF1. Choose the best answers
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 artificial intelligence.
B. The computer changes a lot over the
years.
C. The computer was not connected by a
network until in the early 1960s.
D. Now the computer can only be used to
deal with information.
Q1: How did the computer work as
an Analytical Machine?
Q2: In which way did computers talk to
humans?
Q3: What does “others” (2.6) refer to?
2. QuestionsThe computer followed instructions
from cards with holes.
Using BASIC.
Other computers.
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.
Q5: In how many ways do we say the computer changed? What are they?
Size:
Intelligence:
Speed:
Function:
People’ opinion:smallerquickercleverercalculating----dealing with …, communicating with…simple-minded----clever & usefulRetelling I began as a _______ ________ in 1642 in France. In 1822 I was built as an
_____ ______. Then in 1936 Alan Turing wrote a book and built a _______ ______. As the years have___ ___, I have been made___ ___ _______ but I got ____ ____ ___,____ __ ____. In the 1960s they gave me a family____ __ __ _____. Now people call it the Internet. I was _____ ____ ____ ___ in the 1970s.So I became PC. Since my birth I have truly been built to serve the human race.
calculating machineAnalytical Machineuniversal machinegone bysmaller and smallercleverer and clevererquicker and quickerconnected by a networkbrought into people’s homesHow do people use the computers in daily life? (1). use computer for school work
(2). play games on the computer
(3). send emails to friends
(4). surf the Web for fun
(5). download music and films
(6). chat online
(7). search for information
(8). look at photographs
(9). do shopping online
……Discussion 1243561. monitor 2. screen 3. CD-ROM
4. mouse 5. keyboard 6. hard diskLabel each partLanguage focus:1. As the years have gone by, I have been made smaller and smaller.
go by = pass
随着时间的推移,电脑开始得到人们的认可。
As time went on, computers began to be recognized by people.
随着年龄的增长,我们的阅历也益加丰富。
As we grow older, our experiences become richer and richer.Ⅳ. Read through the words in the box. Use some of them to name each part of a computer in the box. Monitor mouse keyboard hard disc floppy disc CD-ROM printer scanner modem Chips CPU floppy discchipsmonitormodemCD-ROMscannerkeyboardprinterWhat is it in English??Main board(主板)CPU (central processing Unit)
中央处理器RAM
(随机存储器)
(Random Access Memory )hard disc
硬盘DVD ROM
Digital Versatile Disc Read Only Memory
数字通用光盘 Keyboard (键盘)Power supply
(电源)CRT display
(Cathode?Ray?Tube阴极射线管)
纯平显示器mouse
鼠标display card
显卡Language focus:2. However, people thought I was simple-minded until they discovered I had “artificial intelligence”.simple-minded=showing very little intelligenceabsent-minded 心不在焉的
open-minded 虚心的,没有偏见的
narrow-minded 心胸狭窄的
single-minded 一心一意的
strong-minded 意志坚强的
weak-minded 低能的,愚蠢的3. And my memory became so large that I couldn’t believe it!
so… that…: 如此….以致于….
He was so excited that he could not speak.
He ran so fast that I couldn’t catch up with
him.
so + 形容词(副词) + that….
such + 名词 + that….
他如此聪明,以致于我们很喜欢他。
He is so clever that we like him very much.
He is such a clever boy that we like him very much.We left early so that we could catch the first bus. so that …: 1) 以致于,结果是;
2) 以便,为的是(in order that) He got up late, so that he didn’t get to school
on time.他起床晚了,以致于不能按时到校。我们早点离开为的是赶上第一班车。1960sConsolidation: Retelling1243561. monitor2. screen3. CD ROM4. mouse5. keyboard6. hard diskTask 1. Label each part1 A monitor is
2 The screen is
3 A keyboard is
4 A mouse is
5 A CD-ROM is
6 A hard disk is (a) the part of a computer that stores information.
(b) the part of the computer that you type on.
(c) the part of the computer that looks like a television
(d) something you use to click on things (files, etc.).
(e) the part of the monitor that you look at.
(f) a separate disk that contains lots of information.
Match the words with their meanings.Internet
1.What can the computer be used for?Task 2. Discussionschool work
games
emails
music and films
chat
information
photos
shoppingOur life has changed!2.What about in the future?virtual keyboards
虚拟键盘Nose-top
keyboard-vest
robotWhat about in the future?Suppose you are a reporter. Now you are interviewing Mr. / Miss Computer.
Sample questions: What do you like to eat?
What are your hobbies?
What is your newest
fun_ction(功能)?
Can you say something
about your future plan? etc.… …Task 3. Role-playHomework:Review the passage
2. Do Ex. 1-3 on P19-20.
3. Read the story about Bill Gates.palmtop smaller desktop convenient laptop What are today's smaller computers like?