Lesson 21 Books or computers? 教案

Lesson
21
Books
or
computers？
教案
1教学目标
1.能够掌握课标要求的“四会”词汇和词组:appear,
modern,
electronic,
sell;
in
ancient
times,
pass
on,
by
hand,
the
printing
press,
keep
on。
2.能了解如何用英语介绍书籍的发展史。
3.能介绍自己读书的情况。
2教学内容
1.了解有关纸质书和电子书的区别。
2.学习一些用于介绍书籍发展的句子:
1)
They
wrote
each
word
by
hand.
2)
It
was
possible
to
print
books
quickly.
3)
A
new
kind
of
books
appeared:
the
electronic
book.
三、重点难点
1.掌握一些与书籍发展史有关的重点词汇:
appear,
print,
computer,
read,
information,
e-book.
2.运用所学知识介绍自己了解的书籍的情况。
3.掌握以下重点句子:
1)
In
ancient
times,
there
were
no
books,
and
people
passed
on
their
knowledge
by
telling
stories.
2)
Later,
people
learned
how
to
write
and
make
paper.
3)
It
took
a
long
time
to
write
just
one
book.
4)
Information
travels
faster
and
faster.
5)
No
matter
what
you
have,
a
computer,
a
tablet,
a
laptop,
an-reader
or
a
real
book,
keep
on
reading!
四、教学过程
活动1【导入】Step1：Lead
in
and
warm
up
Step1:
Lead-in
and
warm
up
Show
some
pictures
of
reading
books.
Let
the
students
check
in
groups
and
ask
questions
about
the
subject.
Then
present
some
in
front
of
the
class.
Questions:
1.
How
many
books
do
you
read
every
year
2.
Have
you
ever
read
e-books
3.
How
can
we
get
knowledge
answers:
By
talking
with
others;
By
watching
TV;
By
reading
books;
By
reading
e-books.
活动2【讲授】Step
2：Presentation
Present
new
words
and
phrases
in
this
short
passage
by
pictures:
This
is
a
________.With
_____
technology,
it
was
possible
to
___
knowledge.
But
now
a
new
kind
of
books
_____:
the
______book(e-book).
It
is
easier
for
people
to
buy
and
___
online.
words:
morden
adj.
现代的;appear
v.
出现;
electronic
adj.
电子的;sell
v.
出售
phrases:
printing
press
印刷机;pass
on
传递;by
hand
用手;手工keep
on
继续
After
presentation,
have
the
sudents
read
this
short
passage
aloud.
Then
check
out
the
words
below:
1)
The
sun
_____(出现)
from
behind
the
clouds.
2)
We
can’t
imagine
how
the
Great
Wall
built
without
m______
machines.
3)
Do
you
think
_____(电子的)
books
will
take
the
place
of
the
books
made
of
paper
4)
He
put
up
a
table
and
_____(卖)
the
cookies
he
made
himself.
活动3【活动】Step
3：Listening
Watch
and
listen
to
the
cartoon
carefully,
after
the
task
answer
these
3
questions
about
the
passage:
1.
How
did
people
pass
on
their
knowledge
without
books
in
ancient
times
2.
What
made
it
possible
to
print
books
quickly
3.
What
kind
of
books
quickly
changed
people’s
reading
habits
Check
the
answers
one
by
one,
if
possible,
ask
the
students
underline
the
sentences
about
these
questions
in
the
passage:
Answers:
By
telling
stories;
The
printing
press;
The
electronic
books(e-books).
活动4【活动】Step
4：Reading
Read
Passage1,
2
and
3
again
carefully,
then
after
reading
the
passage,
fill
in
the
blanks
with
correct
words
in
the
passage.
With
paper,
people
began
to
___
___
their
stories.
People
wrote
each
word
__.
It
took
a___time
to
write
one
book._____couldn’t
travel
___.
Answers:
write
down,
by
hand,
long,
information,
far.
2.
When
the
printing
press
_________,
it
changed
the
world.
The
________
printing
press
can
print
books
________,
and
makes
it
possible
for
the
_______
person
to
have
______
access
to
read
books.
Answers:
appeared,
modern,
common,
quickly,
easy.
3.______and
the
Internet
changed
the
world.
They
made
it
possible
for
a
new
kind
of
book:
the
_____books.
Traditionally
books
could
only
be
_____and
sold
at
a
store,
but
today
you
can
buy
and
_______
books
____.
Answers:
computers,
sell,
electronic,
bought,
online.
Check
the
answers
in
groups,
then
encourage
the
groups
read
the
passage
aloud.
Then
ask
the
students
to
find
the
main
idea
of
these
three
passages:
the
development
of
the
paper,
printing
press
and
the
Internet.
活动5【活动】Step
5：Activity
1.
Read
the
passage
and
answer
3
questions
below.
Q1:
How
did
people
write
books
in
ancient
times
Q2:
What
made
it
possible
to
print
books
quickly
Q3:
What
kind
of
books
quickly
changed
people’s
reading
habits
The
Ss
read
the
lesson
individually
and
then
discuss
the
answers
with
partners.
Get
to
know
more
about
the
content
and
key
information
about
this
lesson.
2.
Read
through
the
text
and
answer
the
questions
1)
Common
people
didn’t
have
money
to
buy
books
to
read
in
ancient
times.
(
T
or
F)
2)
Put
the
sentences
in
the
right
order.
a.
Writing
a
book
took
a
long
time.
b.
People
could
make
paper
by
themselves.
c.
people
wrote
stories
by
hand.
d.
people
told
stories
without
books
to
pass
on
the
knowledge.
A.
a-b-c-d
B.
d-c-b-a
C.
c-d-b-a
D.
d-b-c-a
3)
How
did
people
write
books
in
ancient
times
4)
The
printing
press
appeared
___________
than
computers
and
Internet.
5)
What
changed
the
world
according
to
the
passage
6)
“it”
in
the
third
paragraph
refers
to_____________________________
7)
The
main
idea
of
the
passage
is
about_____________.
A.
the
history
of
books
B.
the
ways
to
read
books
C.
keep
on
reading
D.
introduction
of
computers
and
Internet
活动6【活动】Step
6
Retell
the
story
Retell
the
history
of
books.
The
structure
can
help
the
students
The
Ss
retell
the
history
of
books.
Students
can
know
the
history
better.
Practice
oral
expressed
ability.
With
paper,
people
began
to
___
___
their
stories.
People
wrote
each
word
__.
It
took
a___time
to
write
one
book._____couldn’t
travel
___.
When
the
printing
press
_________,
it
changed
the
world.
The
________
printing
press
can
print
books
________,
and
makes
it
possible
for
the
_______
person
to
have
______
access
to
read
books.
______and
the
Internet
changed
the
world.
They
made
it
possible
for
a
new
kind
of
book:
the
_____books.
Traditionally
books
could
only
be
_____and
sold
at
a
store,
but
today
you
can
buy
and
_______
books
____.
活动7【活动】Step7：Discussion
and
Talking
Do
you
like
reading
paper
books
or
electronic
books
Why
Talk
with
your
members
in
group.
Divide
the
class
into
two
parts,
one
talk
about"
I
like
reading
paper
books”,
the
others
talk
about”
I
like
reading
electronic
books”.
To
give
Ss
time
to
practice
their
speaking
and
writing
abilities.
活动8【活动】Step
8：Summary
and
Explanation
Summary
the
contents
in
this
lesson
quickly,
then
tell
the
students
what
we
have
learned
in
this
lesson
.1.
In
ancient
times,
there
were
no
books,
and
people
passes
on
their
knowledge
by
telling
stories.
在古代,没有书,人们通过通过讲故事传递知识。
by是介词,后面可以加名词或动名词短语,意为“通过……方式(途径)”。如:
I
learn
English
by
listening
to
tapes.
我通过听磁带学英语。
2.
It
took
a
long
time
to
write
just
one
book.
仅仅写一本书就要花费很长一段时间。
句型It
takes
sb.
Some
time
to
do
sth.
意为“某人花费多长时间做某事”,it是形式主语,真正的主语是动词不定式“to
do
sth.”;take
随时态改变,本句用的是一般过去时态,所以用took。如:
It
took
me
two
hours
to
clean
my
house
yesterday.
我昨天用了两个小时打扫房子。
活动9【练习】Step
9：Exercise
Finish
off
the
following
exercises
below:
I.
根据所给汉语提示,
完成下列句子。
1.
A
computer
is
a
useful
_______
(机器).
2.
There
are
two
________
(印刷)
presses
in
our
school.
3.
What's
the
meaning
of
the
second
______(段落)
in
the
text
4.
________
(哪一条)
way
shall
we
go
5.
I
bought
a
book
about
_______
(现代的)
history
yesterday.
II.
用所给单词的适当形式填空。
1.
I
think
the
Internet
is
_______
(important)
than
the
printing
press.
2.
The
novel
________
(write)
by
Qiong
Yao.
3.
We
can
find
information
______
(quick)
on
the
Internet.
4.
The
machine
can
make
_______
(thousand)
of
books
a
day.
5.
If
you
______
(forget)
the
telephone
number,
you
could
look
it
up
in
the
book.
III.
连词成句。
1.
hand,
the,
by,
model,
was,
plane,
made
__________________________________
.
2.
get,
how,
you,
information,
did,
the
__________________________________
3.
the,
answer,
English,
questions,
in,
please
__________________________________
.
4.
the,
Internet,
people,
lets,
quickly,
information,
search,
for
_______________________________________
.
5.
much,
sound,
travels,
than,
faster,
light
__________________________________
.
活动10【作业】Step10：Homework
Homework:
Which
invention
do
you
think
is
more
important—the
printing
press
or
the
Internet
Write
a
short
passage
and
give
at
least
three
reasons
to
support
your
choice.