人教版高中英语-必修二-Unit3 Computers-Reading 课件（23张ppt）

(共23张PPT)
Unit 3 Computers
——Reading
keyboard
mouse
monitor
screen
speaker
host computer
camera
Write out all the words you know about
computers.
computer
monitor
click
software
search
update
download
Internet
keyboard
7.artificial intelligence 人工智能

8. solve vt.解决

9. reality n.现实

10.personal adj.个人的，私人的

11.application n.应用

12.finance n.金融，财经

13.explore vt.探索，探测
1.calculate v. 计算

2.calculating machine 计算机器

3.simplify vt. 简化

4.operator n.操作员

5.logically adv.逻辑地

6.technological revolution
技术革命
vocabulary
Consolidation
1.calculate
2.calculating machine
3.simplify
4.operator
5.logically
6.Technological revolution
7.artificial intelligence
8. solve
9. reality
10.personal
11.application
12.finance
13.explore

v. 计算
计算机器
vt. 简化
n.操作员
adv.逻辑地
技术革命
人工智能
vt.解决
n.现实
adj.个人的，私人的
n.应用
n.金融，财经
vt.探索，探测
Reading:
Who am I?
(Fast reading) Task 1
2. What’s the main idea of this passage?
A. The development of computers.
B. The development and use of computers.
C. A machine which is simple-minded.
D. Computers may replace human beings.

1 Who am I?
A computer.
In the time order
3. In what order is the passage organized?
Task 2: Skim again to find the topic sentence for each paragraph.
Paragraph 1:
Over time I have been changed quite a lot.
Paragraph 2:
These changes only become possible as my memory improved.
Paragraph 3:
Since the 1970s many new applications has been found for me.
How can we find the top sentences quickly and correctly?
Exploration
1. the first sentence of the paragraph.
2. the last sentence of the paragraph.
3. the second sentence or the sentence after such words as "however, but…
4. No topic sentences. We should conclude.

Careful reading
Task 1: Scan the text and then choose the best answer according to the text.
1.How long did it take before the computer was built as an analytical machine?
A.500 years. B.300 years.
C.100 years. D.200 years.
2.Why did I totally change my shape?
A. Because I could do many things.
B. Because I could simplify sums.
C. Because my memory improved.
D. Because I never forgot anything.
3.According to the last paragraph, which was not mentioned in the use of the computer?
A.Mobile phones. B.Rockets.
C.Bikes. D.Robots.
4 .We can infer that the computer will____ .
A.take the place of human race
B.be smarter than human beings
C.be used in many fields in our life
D.be made by oneself
Calculating machine
Computer
Internet
Analytical machine
Artificial intelligence
Universal machine
The development of computers:
Task 2： Read the text carefully and put the following forms of a computer in correct order.
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
Retell the text by filling the
following blanks.
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 gone by, I have been made _______ and ________
but I became _________ and _________.
Task 3:
In the ______ they gave me a family connected by a ________. Now people call it the ________. I have been used in ______ and ______ since the 1970s. So I became PC. Since my ______ I have truly been built to serve the _______ ____.
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 gone by, I have been made _______ and ________
but I became _________ and _________.
calculating machine
analytical machine
machine
Answer:
universal
smaller
smaller
cleverer
quicker
In the ______ they gave me a family connected by a ________. Now people call it the ________. I have been used in ______ and ______ since the 1970s. So I became PC. Since my _____ I have truly been built to serve the _______ ____.
network
1960s
Internet
human
race
offices
homes
birth
Discussion/Debate
With the development of computer technology, the Internet had become more and more popular among students. However,just as a saying goes, a coin has two sides. The Internet brings both advantages and disadvantages to students. Discuss with your partners to list some advantages and disadvantages of the Internet.
Advantages:
_________________________________________
_________________________________________
Disadvantages:
________________________________________________________________________________________
advantages
1municate with friends all over the world
2.listen to the music
3.see films & watch news
4.play games
5.do shopping
6.save a lot of time
7.do a lot of useful things
8……..
Disadvantages:
1.Some people especially the teenagers are addicted to
the computer games and chatting on the Internet. As
a result, they have little time to study.
2.Some people use the computer wrongly.
3. netizens’ privacy are sometimes left dangerously exposed.
4……….
Writing : a short speech on “How to use the Internet properly”
According to your discussion, please voice your opinions.
Prepare in 5 minutes and show.
Summary: what have we learned?
1.some words about computers.
2 the development of computers
3 the strategies of finding topic sentences
4. To use the internet in a proper way .
1 To recite the words learnt in this class .
2 To analyze the complex sentences and translate them into Chinese.
3. To read more material about computers.