Module2 Unit　4　Computers教案

Unit　4　Computers
1教学目标
认读和理解单词monitor,
speaker,
main
unit,
keyboard,
mouse,
type,
brain,
control,
expensive,
tiny,
depend,
speed,
operate,
railway和短语work
as,
(be)
unaware
of,
depend
on,
in
addition等;认识单词calculate。
2学情分析
学生学了前面的内容,
对阅读理解有一定的能力,本单元作进一步的巩固。
3重点难点
认读和理解与“电脑”话题相关的词汇。根据上下文语境猜测词义。
4教学过程
4.1
第一学时
4.1.1教学活动
活动1【讲授】Computer
Step
1
阅读Getting
ready
板块的图文,了解单元话题。
学生观察教材第33页的卡通图,阅读Hi和Lo的对话,回答下列
问题。
●
Where
are
Hi
and
Lo
(They’re
outside
a
bank.)
●
What
is
Hi
wondering
about
Lo
(He
is
wondering
why
Lo
is
never
short
of
pocket
money.)
●
Where
does
Lo
get
his
money
(Lo
gets
his
money
from
the
ATM.)
●
What
can
you
do
with
an
ATM
(We
can
get
money
from
it
or
put
money
into
it.)
●
What
makes
an
ATM
work
(Maybe
a
computer.)
教师进一步补充:A
computer
makes
an
ATM
work.
It
controls
the
ATM.。学生认读和理解单词control。
Step
2
通过配对练习,激活背景知识,开展相关词汇教学。
1.
教师询问学生对电脑的了解程度,并通过配对练习,帮助学生认
读更多有关电脑的词汇。注意,可以通过让学生回答ATM的全称
来引入此配对练习。
A
B
(c)
ATM
a.
something
that
gets
into
a
program
and
harms
it
(d)
software
b.
a
collection
of
information
on
a
computer
that
is
stored
under
a
particular
name
(e)
hardware
c.
automated
teller
machine
(a)
virus
d.
the
sets
of
programs
that
you
put
into
a
computer
when
you
want
it
to
do
particular
jobs
(h)
multimedia
e.
a
computer’s
monitor,
keyboard,
drives,
etc.
(b)
file
f.
personal
computer
(f)
PC
g.
two
or
more
computers
linked
together
(g)
network
h.
a
mixture
of
sound,
pictures,
film,
and
writing
to
give
information,
especially
with
computers
2.
学生回答问题:Do
you
have
a
computer
at
home ,然后思考如今几乎每个家庭都有电脑的原因。认读和理解单词expensive。
3.
学生根据问题What
do
you
usually
do
with
computers
开展“头脑风暴”。认读和理解单词type;认识单词calculate。
4.
学生完成What
do
you
know
about...
部分的练习,并认读和理解单词speaker,
monitor,
keyboard,
main
unit,
mouse和brain。
Step
3
预测和了解文章大致内容并了解小标题的作用。
1.
学生完成Before
you
read部分的练习,预测主阅读篇章谈论的内
容。认读和理解短语work
as。
2.
教师引入教材第36页Strategy的内容,讲解小标题在文章中的作
用。可通过以下问题来检查学生对此策略的理解。
●
If
we
want
to
learn
about
the
sizes
of
computers,
where
can
we
find
the
information
●
If
we
want
to
learn
about
the
problems
computers
may
bring,
where
can
we
find
the
information
●
If
we
want
to
learn
about
the
uses
of
computers,
where
can
we
find
the
information
3.
教师与学生一起核对预测内容。
Step
4
根据上下文语境猜测生词词义。通过Vocabulary部分的练习和补充的词汇练习,加深和巩固对词汇的理解和运用。
1.
学生快速阅读全文,划出生词,并尽可能通过上下文猜测生词的
含义。然后完成Vocabulary
C1的练习。
2.
教师根据学生情况和教学需要,讲解课文中的核心词汇tiny,
depend,
calculate,
speed,
operate,
railway,
(be)
unaware
of,
depend
on,
in
addition等。
3.
学生完成Vocabulary
C2的练习。
4.
学生运用本课所学词汇的正确形式,完成下列词汇练习。
●
I
can’t
type
because
the
keyboard
doesn’t
work.
●
You
depend
on
your
parents
too
much.
You
should
learn
how
to
look
after
yourself.
●
My
father
works
as
an
engineer.
His
job
is
to
operate
some
big
machines
and
repair
them.
●
CPU
is
the
“brain”
of
a
computer.
It’s
a
tiny
part
in
the
main
unit.
●
Getting
angry
may
make
you
lose
friends,
so
it
is
important
to
control
your
feelings.
●
He
is
driving
at
a
speed
of
150
km
per
hour.
It’s
very
dangerous,
but
he
is
unaware
of
the
danger.
Step
5
阅读Culture
corner板块的内容,了解关于“古代计算机”—算盘的知识。
1.
学生回答问题:What
is
an
“ancient
computer”
2.
教师引导学生阅读Culture
corner
板块的图文,然后讨论回答文
章后的两个问题。
1.
抄写单词和短语:monitor,
speaker,
main
unit,
keyboard,
mouse,
type,
brain,
control,
expensive,
tiny,
depend,
calculate,
speed,
operate,
railway,
work
as,
(be)
unaware
of,
depend
on,
in
addition等。
2.
思考:除了银行的ATM机,电脑还被广泛运用于日常生活中的哪些领域
3.
完成《练习册》第34页Vocabulary和第41页Reading
A的练习。