人教新课标必修2 Unit3 Computers Warming up pre reading comprehending 课件 (28张PPT)
文档属性
| 名称 | 人教新课标必修2 Unit3 Computers Warming up pre reading comprehending 课件 (28张PPT) |  | |
| 格式 | ppt | ||
| 文件大小 | 7.2MB | ||
| 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 | 2019-07-12 20:48:50 | ||
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文档简介
(共29张PPT)
Unit 3
Computers
Should high school students surf the Internet(上网)
What are advantages and
disadvantages of the internet
or
Advantages
Disadvantages
Debate
网上读书方便经济， 查找资料有利学习。
购物淘宝娱乐游戏， 开阔眼界丰富知识。一旦着迷受害无比， 智力受阻精神疲惫。
上网时间科学调配， 时间太久损伤视力。
接触网络定要注意， 不要浏览不良信息。
不去玩耍暴力游戏， 与人聊天学会自卫。
网上交友纯属骗局， 即伤感情又伤心理。
健康成长放在首位， 科学上网终身受益。
自律自爱不被网累， 网络生活利定大弊。
Reading
Fast-reading
Go through the text quickly and find the topic sentence of each paragraph.
Paragraph 1
Paragraph
2
Paragraph
3
Careful reading
The first clue
Over time I have been
changed a lot.
Paragraph 1
1642
1822
1936
1940s
1960s
1970s
now
I began as a calculating machine.
I had grown as large as a room.
I have been used in offices and homes.
They gave me a family connected by a network.
I was built as an analytical machine by
Charles Babbage.
I grew rapidly both in size and in brainpower.
I connect people all over the world together.
The second
clue
Paragraph 2
These changes only became possible as
my memory improved.
tubes
A
transistors
B
chips
C
network
D
It was stored
World Wide Web
E
The third
clue
Since the 1970s many
new applications have
been found for me.
Paragraph 3
finance
2
trade
3
robots
4
mobile phones
5
medical operations
6
space rockets
7
new applications
1
communications
Who am I
keyboard 键盘
mouse 鼠标
monitor 显示器
screen 屏幕
speaker 音响
host
主机
A computer
Summary
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
huge
smaller and smaller
analytical
calculating
universal
laptop
PC
tubes
transistors
chips
communication
finance
robot
mobile phone
space rocket
medical operation
trade
huge computer
Homework
1. Read the text after class and
look for more information
about the development of the
computer and its applications.
2. Retell the passage.
Download(下载) information
See a movie or watch TV
Play computer games
Buy goods you want
Do some chatting
advantages
Improve people's ability of thinking
Too expensive
Addicted to（沉迷）playing games
disadvantages
People can’t write right Chinese letters
Not a real world
It is bad for our eyes
Some students waste too much time in playing computer games. As a result, they have little time to study.
tube
transistor
chip
Unit 3
Computers
Should high school students surf the Internet(上网)
What are advantages and
disadvantages of the internet
or
Advantages
Disadvantages
Debate
网上读书方便经济， 查找资料有利学习。
购物淘宝娱乐游戏， 开阔眼界丰富知识。一旦着迷受害无比， 智力受阻精神疲惫。
上网时间科学调配， 时间太久损伤视力。
接触网络定要注意， 不要浏览不良信息。
不去玩耍暴力游戏， 与人聊天学会自卫。
网上交友纯属骗局， 即伤感情又伤心理。
健康成长放在首位， 科学上网终身受益。
自律自爱不被网累， 网络生活利定大弊。
Reading
Fast-reading
Go through the text quickly and find the topic sentence of each paragraph.
Paragraph 1
Paragraph
2
Paragraph
3
Careful reading
The first clue
Over time I have been
changed a lot.
Paragraph 1
1642
1822
1936
1940s
1960s
1970s
now
I began as a calculating machine.
I had grown as large as a room.
I have been used in offices and homes.
They gave me a family connected by a network.
I was built as an analytical machine by
Charles Babbage.
I grew rapidly both in size and in brainpower.
I connect people all over the world together.
The second
clue
Paragraph 2
These changes only became possible as
my memory improved.
tubes
A
transistors
B
chips
C
network
D
It was stored
World Wide Web
E
The third
clue
Since the 1970s many
new applications have
been found for me.
Paragraph 3
finance
2
trade
3
robots
4
mobile phones
5
medical operations
6
space rockets
7
new applications
1
communications
Who am I
keyboard 键盘
mouse 鼠标
monitor 显示器
screen 屏幕
speaker 音响
host
主机
A computer
Summary
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
huge
smaller and smaller
analytical
calculating
universal
laptop
PC
tubes
transistors
chips
communication
finance
robot
mobile phone
space rocket
medical operation
trade
huge computer
Homework
1. Read the text after class and
look for more information
about the development of the
computer and its applications.
2. Retell the passage.
Download(下载) information
See a movie or watch TV
Play computer games
Buy goods you want
Do some chatting
advantages
Improve people's ability of thinking
Too expensive
Addicted to（沉迷）playing games
disadvantages
People can’t write right Chinese letters
Not a real world
It is bad for our eyes
Some students waste too much time in playing computer games. As a result, they have little time to study.
tube
transistor
chip