unit3 computers[上学期]
文档属性
| 名称 | unit3 computers[上学期] |  | |
| 格式 | rar | ||
| 文件大小 | 3.1MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2006-12-26 19:57:00 | ||
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文档简介
课件31张PPT。Unit 3 ComputersPeriod 1 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.
A notebook computerDo you know who I am? It is built to solve some mathematical problems. But it is too big.
A huge computerIt is a personal computer which can solve all kinds of problems and is used widely now.
A PCDiscussionWhat do they have in common?Have the computer and Internet become part of your life?
How have computer changed our life?
(What can you use them to do? )
Pre-readingI use the computer or Internet to:type my homework
draw pictures
play games
communicate with my friends.
gather related information for my lessons
buy the things I like,
listen to music
watch movies.This is a short ________ of the ______________ of computers.The main idea of the passage:historydevelopmentPredicatingWho am I ? Computer2) 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.
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’.”(it has artificial intelligent)
●”My real father was Alan Turing ....”(he designed the first computer)
● “Then in 1822 I was built as an Analytical Machine by Charles Babbage.” (Itself was the first design of a computer)Listen to the tape. True or FalseAlan 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.
FTFTFQ1: 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. Questions The 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 & usefulTimelineThe 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? Language
pointscommon1. most widely known; ordinary:He is a common sailor.have nothing/little in common 没有共同之处 have a lot/ much in common 与…有很多共同之处At first, I think we only had one thing in common, but suddenly I felt we had a lot in common.The two brothers had everything in common in their manners, but the two sisters have little in common.In common with (like) many educated people
he prefers classic music to jazz. 3. in common : equally with or by all.He and his bother own the firm in common. In common with many other classmates, I like sports.4. in common with : =like2. I followed instructions from cards with holes.follow: take or acceptI followed my teacher’s advice and paid more attention to my spoken English.You will spend a lot if you always follow the fashion.We should follow the example of the students who behave themselves.Follow the road signs while driving.Can you follow what I am saying?in the following year
=in the next year=in the year that followsLanguage 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.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。1243561. 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.1960sConsolidation: RetellingInternet
1.What can the computer be used for?Task 2. Discussionschool work
games
emails
music and films
chat
information
photos
shoppingOur life has changed!palmtop smaller desktop convenient laptop What are today's smaller computers like?
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.
A notebook computerDo you know who I am? It is built to solve some mathematical problems. But it is too big.
A huge computerIt is a personal computer which can solve all kinds of problems and is used widely now.
A PCDiscussionWhat do they have in common?Have the computer and Internet become part of your life?
How have computer changed our life?
(What can you use them to do? )
Pre-readingI use the computer or Internet to:type my homework
draw pictures
play games
communicate with my friends.
gather related information for my lessons
buy the things I like,
listen to music
watch movies.This is a short ________ of the ______________ of computers.The main idea of the passage:historydevelopmentPredicatingWho am I ? Computer2) 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.
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’.”(it has artificial intelligent)
●”My real father was Alan Turing ....”(he designed the first computer)
● “Then in 1822 I was built as an Analytical Machine by Charles Babbage.” (Itself was the first design of a computer)Listen to the tape. True or FalseAlan 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.
FTFTFQ1: 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. Questions The 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 & usefulTimelineThe 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? Language
pointscommon1. most widely known; ordinary:He is a common sailor.have nothing/little in common 没有共同之处 have a lot/ much in common 与…有很多共同之处At first, I think we only had one thing in common, but suddenly I felt we had a lot in common.The two brothers had everything in common in their manners, but the two sisters have little in common.In common with (like) many educated people
he prefers classic music to jazz. 3. in common : equally with or by all.He and his bother own the firm in common. In common with many other classmates, I like sports.4. in common with : =like2. I followed instructions from cards with holes.follow: take or acceptI followed my teacher’s advice and paid more attention to my spoken English.You will spend a lot if you always follow the fashion.We should follow the example of the students who behave themselves.Follow the road signs while driving.Can you follow what I am saying?in the following year
=in the next year=in the year that followsLanguage 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.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。1243561. 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.1960sConsolidation: RetellingInternet
1.What can the computer be used for?Task 2. Discussionschool work
games
emails
music and films
chat
information
photos
shoppingOur life has changed!palmtop smaller desktop convenient laptop What are today's smaller computers like?