Module 2 Unit 4 Computers. 教学设计

Unit
4
Computers
1教学目标
1)认知目标
掌握以下词语和短语:Calculate,sum,solve,simplify,artificial,intelligence,revolution,reality,totally,application,finance,incommon,
overtime,asaresult,from·on,so·that.
2)能力目标
训练学生一定的阅读技巧,使他们掌握一些有效的学习策略,从而提高阅读速度和篇章理解的准确性,并养成一定的自主学习能力;培养学生快速阅读的能力、捕捉信息的能力及运用语言进行交际的能力
3
)情感目标
通过对
“
computer
”
的学习,
启发学生思考电脑给我们带来的影响,
从而以一种正确的方式利用电脑和网络资源;
另外通过电脑的发展历
程让学生意识到科技对生活的影响。
2学情分析
1.
随着科技的发展和交流的日益密切,
“电脑”
已经越来越成为
人们生活不可或缺的一部分,虽然学生们知道电脑的用途及功能等,
但是对于电脑的发展历史还是比较模糊,
本课的内容能够引起学生的
学习兴趣,激发学生的探究心理。
2.
在本课任务驱动的学习过程中,学生可能会采取自主学习、
合作学习。探究学习等策略,独立思考、快速阅读文章、讨论等方式
进行有效的学习。
3重点难点
教学重点:
1.
了解计算机的发展过程,进一步认识计算机的演变以及对人
类的影响。
2.
训练学生的阅读技巧,提高学生阅读速度和理解能力。
教学难点:
对所获取的信息进行处理、
加工和学习,
形成有效的学习策略。
4教学过程
4.1
第一学时
4.1.1教学活动
活动1【导入】Step　1　Lead　in
1.
一段变形金刚的视频导入今天的话题“
computers
”
。
2.
设计问题:
Do
you
like
computer
Why
or
why
not
I
like/
don’t
like
computer.
Because···
What
is
the
function
of
computer
In
my
opinion/
from
my
perspective/
I
think
that·
·
·
3.Give
students
four
descriptions
about
different
calculating
machine,
then
ask
students
to
ask
“
who
am
I
”
活动2【导入】Step2　Pre－reading
设计问题:
Task
1
Pre-reading
questions1.
Who
am
I
2.
Who
was
the
first
person
to
invent
the
earliest
computer
3.
Who
was
the
next
important
person
to
design
computers
4.
Read
the
passage
quickly
and
check
your
prediction.
What
is
the
main
idea
of
the
passage
Task
2
Put
the
following
inventions
in
an
order
according
to
the
time
they
appeared.
(
)
analytical
machine
(
)
laptop
(
)
calculating
machine
(
)
robot
(
)
PC
(
)
universal
machine
★
设计意图:
让学生思考并回答问题,
可以活跃课堂气氛,
真正
发挥学生在课堂上的主体作用。通过
task
1
让学生根据课文标题等
预测文章的内容。
Task
2
通过对事物的排序让学生进一步了解课文
的结构和发展情节。
这些问题既培养学生的语言运用能力,
同时还发
展了学生发现问题、思考问题、解决问题的能力。
活动3【讲授】Step3　While－reading
Task
;first
reading
Skimming
with
the
following
questions
(
fast
reading
)
:
1.
Where
were
you
in
1642
2.
What
happened
to
you
after
nearly
two
hundred
years
3.
What
were
you
called
in
1936
4.
What
happened
to
you
in
the
1970s
Ask
the
students
to
decide
whether
the
following
statements
are
true
or
false.
1.
Alan
Turing
built
an
Analytical
Machine
to
solve
any
mathematical
problems.
F
2.
People
began
to
realize
that
the
computer
got
cleverer
and
quicker
with
time
passing.
T
3.
In
1936
my
real
father,
Charles
Babbage,
wrote
a
book
to
solve
any
mathematical
problem.
F
4.
From
1936,
the
computer
grew
rapidly
both
in
size
and
in
brain
power.
T
5.
The
larger
the
computer
is,
the
more
memory
it
has.
F
★
设计意图:
快速浏览课文,
回答问题。
训练和培养学生快速阅
读的能力。
活动4【活动】Step4Practice
Try
to
retell
the
story
according
to
students
’
memory.
In
1642,
a
calculating
machine
was
used
in__________
.
Then
in
1822,
the
Analytical
Machine
was
made
by
_______________.
It
could
follow
instructions
from
cards
with
holes.
In
1936,
_____________,
the
real
father
of
computers,
wrote
a
book
to
describe
how
computers
could
be
made
to
wok
and
built
a
“__________________”
to
solve
any
mathematical
problem.
And
in
the
early1960s,
computer
can
share
its
knowledge
through
_______
______
_____.In
1970s
computers
have
become
very
important
in_______________,
___________
and_____.
★设计意图:表格填空按照文章发展的顺序进行排列,学生通过
仔细阅读对各个时间段的时间进行概括,
可以培养学生对文章的概括
能力和理解能力。
课文复述题可以加强学生对课文的整体理解,
锻炼
学生获取信息和处理信息的能力,从而提高阅读理解水平。
活动5【练习】Step5　Exercises
1.
What
’
s
the
main
idea
of
the
text
A.
The
computer
wants
to
find
“
who
he
is
”
.
B.
The
functional
change
of
the
computer.
C.
The
computer
becomes
popular
around
the
world.
D.
The
history
of
the
computer.
2.
This
passage
is
probably
taken
from______
A.
an
advertisement
B.
a
notice
C.
a
poster
D.
a
magazine
3.What
does
the
word
”
rapidly
”
mean
in
paragraph
one

A.
quickly
B.
slowly
C.
largely
D.
mostly
4.
What
can
you
infer
from
the
text
A.
The
computer
has
very
large
size.
B.
The
computer
changes
a
lot
over
the
years.
C.
The
computer
was
not
connected
by
a
network
until
in
the
early
1970s.
D.
Now
the
computer
can
only
be
used
to
deal
with
information.
5.
According
to
the
passage,
computer
in
the
future
will________
A.
become
bigger
and
bigger
B.
develop
with
low
speed
C.
become
the
helper
of
mankind
D.
disappear
★
设计意图:通过高考阅读题的形式把这篇文章划分为五个问
题,
分别是文章主旨的推断,
文章体裁和出处的判断,
句子中词义的
推测,
对课文内容的理解以及对文章内容进一步发展的预测。
这有助
于构建学生对高考的一个初步认识,
在平时的讲课中锻炼和提高学生
对阅读的认知和理解能力,从而提高阅读理解的正对性和准确性。
活动6【作业】Step6　Homework
Try
to
retell
the
text
in
your
own
words.
2.
Searching
more
informations
about
computer.
3.
Finish
the
Ex2
and
Ex3
in
Learning
about
Language
on
page20.
★
设计意图:
提高学生搜集信息和整理信息的能力,
进一步加深对
课文内容的理解,从而在练习题中运用自如。