人教版新课标英语必修二 Unit 3 Computers Reading 课件（31张PPT）

Unit
3
Computers
人教版
高中英语
Reading
Heavy!
Difficult!
Hard!
Tired!
Easy!
Fast!
Free!
monitor
keyboard
mouse
speaker
modem
scanner
printer
USB
flash
disc
hard
disc
Label
each
part.
1
2
4
3
5
6
monitor
screen
CD-ROM
mouse
keyboard
hard
disk
1.
Look
at
these
pictures.
In
pairs
discuss
what
they
have
in
common.
2.
What
do
they
tell
you
about
the
development
of
computers?
3.
What
do
you
think
will
be
the
next
development?
What’s
next?
1.
Look
at
the
title
of
the
reading
passage.
Predict
what
it
is
going
to
be
about.
2.
Do
you
know
in
what
ways
computers
are
used
today?
Work
out
a
list
and
compare
it
with
your
partner.
Pre-reading
Skimming
Read
the
text
quickly.
1.
Who
am
I?
A.
An
operator．
B.
Alan
Turing．
C.
A
computer．
D.
Human
race．
C
2.
What’s
the
passage
about?
The
text
mainly
tells
us
a
short
history
of
the
development
of
the
__________
and
its
____________
in
different
fields.?
computer
applications
Scanning
Read
the
passage
and
finish
the
timeline.
1642
1822
The
analytical
machine
was
made
by
Charles
Babbage.
The
computer
began
as
a
calculating
machine.
1940s
The
first
family
of
computers
was
connected
to
each
other.
The
computer
grew
rapidly
both
in
size
and
in
puters
had
grown
as
large
as
a
room.
1960s
1936
1970s
now
Computers
were
used
in
offices
and
puters
connect
people
all
over
the
world
together.
Read
the
passage
again
and
complete
the
chart
below.
Careful
reading
Development
Early
days
Name
Function
Poor
Strong
A
_________
machine
Simplify
difficult
sums
An
________
machine
Think
logically
and
produce
an
answer
quickly
A
_________
machine
Solve
difficult
____________
__________
calculating
analytical
universal
mathematical
problems
Development
Network
times
________
stored
in
Tubes
Large
Small
____________
Small
chips
__________
_____________
Narrow
Wide
Finance
________
Robots
Mobile
phones
_______________
Space
rockets
Medical
operations
Memory
Transistors
Applications
Communication
Trade
Topic
sentence
Supporting
details
Paragraph
1
Over
time
I
have
been
changed
quite
a
lot.
Calculating
machine
Analytical
machine
Universal
machine
PC
laptop
Topic
sentence
Supporting
details
Paragraph
2
These
changes
only
became
possible
as
my
memory
improved.
tubes
transistors
chips
network
World
Wide
Web
Topic
sentence
Supporting
details
Paragraph
3
Since
the
1970s
many
new
applications
have
been
found
for
me.
＊communications
＊finance
＊trade
＊robots
＊mobile
phones
＊medical
operations
＊space
rockets
＊providing
a
life
of
high
quality
the
second
generation
(1956-1963)
the
third
generation
(1964-1971)
the
fourth
generation
(1971-
)
The
first
generation
(1945-1956)
The
history
of
computers
Summary
of
the
passage.
I
began
as
a
__________
machine
in
1642.
It
took
nearly
two
hundred
years
________
I
was
built
as
an
analytical
machine.
I
became
a
“universal
machine”
in
1936
to
________
any
mathematical
problem.
I
was
very
big
at
one
time.
Post
reading
calculating
before
solve
However,
as
time
_______
by,
I
was
made
smaller
and
smaller.
I
was
given
a
family
__________
by
a
network
in
the
early
1960s.
I
was
able
to
_______
my
knowledge
with
others
__________
the
World
Wide
Web.
went
connected
share
through
I
have
been
widely
used
in
many
fields,
such
as
in
communication,
_________
trade
and
medical
__________.
I
have
also
been
put
into
robots
and
space
rockets
to
________
the
Moon
and
Mars.
I’m
glad
I
am
a
devoted
friend
and
helper
of
the
human
race.
finance
operations
explore
What
is
PC?
Speak
the
name
on
the
whole.
It
means:
personal
computer.
2.
What
is
IT?
Information
Technology.
3.
What
is
W.W.W?
World
Wide
Web.
4.
科学技术
Science
and
technology.
5.
人工智能
Artificial
intelligence.
6.
笔记本电脑
laptop
How
computers
have
changed
our
lives?
1.
Brainstorm
a
list
of
things
that
you,
your
school
and
your
family
use
computers
for.
2.
Think
about
what
you
would
have
to
do
if
you
could
not
use
computers
any
more.
List
of
uses
of
computers
What
people
did
before
computers
emails
write
letters
word
processing
write
by
hand
or
typewriter
search
for
information
look
in
encyclopedia,
library,
etc.
List
of
uses
of
computers
What
people
did
before
computers
watch
DVDs
go
to
the
cinema
store
information
write
everything
down
and
put
into
files
and
folders
Retell
the
text
according
to
the
following
clues
and
then
write
down
your
retelling.
Homework
Changes
of
the
machine
Calculating
machine
Analytical
machine
Universal
machine
Machine
with
artificial
intelligence
Machine
with
new
transistor
A
family
connected
by
a
network
A
family
used
by
the
Internet
Retell