Unit 10 Air 教案

Unit
10
Air
教案
1教学目标
知识目标:
掌握本课四会单词air,
everywhere,
alive,
factory,
smoke,
dirty(balloon为补充词)。
掌握句型It
keeps
them
high
in
the
sky,并熟读课文。
2.能力目标:
1)听懂有关空气的描述,会用It
has
no…谈论空气的特点。
2)会用What
makes
the
air
dirty 引发有关空气污染原因的讨论
3)用句型It
keeps
them
high
in
the
sky介绍空气的作用。
3.情感目标:
1)
在课堂活动中,调动学生的学习热情,激发学生英语学习的兴趣。
2)
在小组活动体验中,培养学生互助、合作学习的意识,提高学生运用语言能力。
3)
使学生了解空气的相关知识和现状,深刻懂得大气污染的重要性,从而认识到保护地球是我们每个人的责任,我们应该如何从日常生活中的点滴小事做起,爱护我们的家园。
2重点难点
教学重点:
1.
会听、说、读、写单词air,
everywhere,
alive,
factory,
smoke,
dirty。
2.
掌握句子It
keeps
them
high
in
the
sky.
并且在生活中灵活运用它们。
教学难点:
句子It
keeps
them
high
in
the
sky.
中
them人称代词宾格形式变化。
3教学准备
1.课文对话光盘
2.多媒体教学课件
3.热气球图片、单词句型卡片
4.实物(三个装有沙子、果汁和空气的瓶子)
5.阅读理解材料
4教学过程
活动1【导入】（一）热身复习　文化感知
Step1:
Warming
–up
A
guessing
game.(Three
bottles)
T:
Hi,
boys
and
girls.
Let’s
play
a
guessing
game.
Look,
I
have
three
bottles
here.
Who
can
guess
what’s
in
Bottle1 (学生猜)
Yes,
you
are
right.
There’s
some
sand.
What
colour
is
the
sand
T:
Look
at
Bottle2.
What’s
in
it
Yes,
you
are
right.
There’s
some
juice.
What
colour
is
it
Taste
it.
How
does
it
feel
(找一学生品尝)
T:
I
have
anther
bottle.
Who
can
guess
what’s
in
it (学生猜不出时出示)Look,
What’s
in
it
Is
there
anything
in
it
(学生也许会说里面没有东西)
Are
you
sure.
I
think
there
is
something
in
it.
You
cannot
see
it.
Think
it
over.
What
is
it
(有学生猜出时出示单词并板书air,出示课题。读单词air)
设计意图:
猜测游戏活不但跃了课堂气氛,拉近了师生的距离,而且很自然地进入到本课的主要话题。
Step2.
Presentation
1)出示air课件及音标,学生试读。之后领读。之后出示课件fair,hair.学生试读。
设计意图:这部分目的在于让学生学会归类,通过归类学习词语,可以举一反三、事半功倍,让学生体会到好的学习方法对于英语学习的重要性。
2)
T:
Does
air
have
smell
Does
it
have
colour
Can
you
see
it
Can
you
feel
it
Who
can
say
how
air
is
学生回答后初听录音
设计意图:初听录音,使学生对空气有个初步认识,为下一步学习做好铺垫。
3)让学生自己说一说空气。
设计意图:通过学生不断巩固air的特点,让学生更好地掌握所学知识,以便更灵活地理解和掌握语言,达到交流运用的目的。
Step
3.
New
structure
learning
T:
Air
is
very
important
to
us.
But
where
is
it
(学生回答)Is
air
in
the
classroom
Is
it
in
the
playground
Yes.
Air
is
everywhere.
设计意图:通过提问,很自然地过渡到另一词的学习,问题的设计更好地让学生理解everywhere词义。
T;出示单词及音标,学生读,之后领读。出示(学生读)
class+room→
classroom,
play+ground
→playground,
some+thing
→something.(构词法)
之后出示词义解释Here
and
there,each
place.学生读出。出示句子Air
is
everywhere.学生读。之后让学生说一说对空气的再认识。Air
has
no
smell
and
no
taste.
It
has
no
colour
or
shape.
Air
is
everywhere.
设计意图:用最简短的语言解释新单词的意思,使学生通俗易懂;通过列举词例让学生感受英语构词方法,从而对这类词有了更好的理解和记忆。
T:
Air
is
everywhere.
It
keeps
people
and
animals
alive.(出示两条鱼图片)Look
at
the
two
pictures.
What’s
the
difference
between
this
two
fish (提示
Can
the
fish
swim
in
Picture1
Why )出示dead及词义领读两遍。It
can’t
swim,
because
it’s
dead.出示另一图片,Look
at
this
one.
Can
it
swim
Why
Because
it’s
not
dead.
It’s
“alive”.出示alive及音标,学生读,领读。
设计意图:两个生动的图片和精心设计的问题能使学生更好地理解alive的词义,并扩展了反义词dead,使学生更自然地接受新知。
T:
What
keeps
the
fish
alive (学生很可能回答如食物,水,小鱼等等。)
What
keeps
you
and
me
alive
(学生很可能回答如食物,水,空气等等。)
Yes,
You
are
all
right.
出示课件:We
can
live
without
food
for
five
weeks.
We
can)
live
without
water
for
five
days.
We
can
live
without
air
for
only
five
minutes.学生试读
。
T:Is
air
important
出示We
all
need
it
to
keep
us
alive.找学生读之后齐读。
设计意图:这部分的扩展在于让学生更深刻地了解空气对我们的重要性,从而为下面学习做铺垫。
出示balloon。Look,
what’s
this
Yes,
it’s
a
“balloon”.出示音标单词,学生读。Does
it
need
air (出示课件)
How
does
a
balloon
lift
people
up
What
does
it
use 出示It
uses
hot
air.
(学生读)
(出示图片)Look
the
balloon
and
the
kite.
Look
at
the
plane
and
the
bird.
They
are
high
in
the
sky.
Why (学生答)
Yes.
They
all
need
air.
It
keeps
them
high
in
the
sky.(出示四会句型)让学生试读后跟读。
设计意图:
通过几个问题的设计,让学生知道空气出了人类动物意外还有很多其他的作用。
Step
4
1)出示课件(图片balloon,
kite,
plane,
bird新单词alive,
everywhere,
air句型It
has
no…,It
keeps
them
…)
Boys
and
girls,
do
you
know
the
air
well
now
Can
you
say
some
sentences
about
air (小组说,汇报,最后一起说)
设计意图:用新学单词句型作为信息点,让学生组成短句说说空气。这部分设计目的在于让学生做以小结、巩固新知,并把新知灵活运用。
2)
T:
OK!
Air
is
so
important
to
all
the
things
in
the
earth.
Now
Let’s
listen
and
then
answer
some
questions
about
air.
(听录音,之后跟读)
出示问题:
Does
it
have
any
colour
or
tast
Can
you
see
or
feel
it
It
has
no
______
or
_______.
It
has
no
_______
or
_______.
We
cannot
____
it,
but
we
can
____
it.
Why
is
it
important
It
is
__________.
It
is
important
to
all
______.
It
is
also
important
to
______
and
_____.
We
all
need
it
to
keep
us
_____.
(学生小组完成)
设计意图:通过听读,让学生学会使用正确的语音语调,从而提高自己的听读能力;问题和填空的设计有梯度,目的是让学生更好地巩固学习,对空气的特点及作用更加深刻的认识。让学生独立思考,有利于教师关注到每一位学生的学习效果,从而调整对不同学生的要求,保护他们学习英语的自信心。
Step
5
T:
So,
air
is
very
important.
We
live
on
the
earth.
We
breathe
air
every
day.
But
today,
look
at
the
two
pictures.
What
happed
What’s
the
difference
between
them
How’s
the
air
in
the
pictures
出示单词“clean,
dirty”及音标,学生读,老师领读。
设计意图:通过图片和问题,学生能更好地理解词义,并对大气的现状有个初步印象。
What
makes
the
air
so
dirty
Think
it
over.
出示图片:Yes,
there
is
so
much
smoke
in
the
sky.出示“smoke”学生读,领读。Where
does
the
smoke
come
from
(学生自由回答并对话练习.)
出示课件“factory”及音标,学生读,领读。
设计意图:
两个图片及问题很自然的学习了新词smoke,
factory,通过学生发言和对话练习,使学生学会了用What
makes
the
air
so
dirty 这一话题谈论空气。
Step
6
出示“Many
factories
makes
much
some
.
The
air
is
getting
dirty
and
dirty.
We
call
the
dirty
air
“air
pollution”.读两遍(图片)
Let’s
look
at
some
pictures.
Then
discuss
.出示汇报表:I
can
see…
The
smoke
comes
from…
We
should…
Then
give
me
a
report.(观看大气污染的音乐画面后讨论汇报)
设计意图:
观看大气污染画面,进一步为学生创设真实的语言情境,这样的调查活动促使学生在实践活动中运用所学英语,增强对所学英语的体验,让他们在生活实践中使用语言,训练他们的口语表达能力,同时培养学生的合作精神。
活动6【测试】短文拓展练习。
Last
Sunday,
we
went
to
a
park.
It
was
a
sunny
day.
The
sky
was
blue.
There
were
a
lot
of
trees
in
the
park.
The
air
in
the
park
was
fresh(新鲜的)and
clean.
We
had
a
picnic.
We
ate
many
delicious
food
and
listened
to
music.
After
that,
We
put
all
the
rubbish
into
the
bin.
Because
Little
things
can
make
a
big
difference(不同).
Then
we
took
a
walk
and
enjoyed
the
fresh
air
in
the
park.
We
all
had
a
good
time.
Where
did
go
last
Sunday
They
went
to
a
park.
2.
How
was
the
weather
It
was
sunny
/
fine.
How
was
the
air
in
the
park
It
was
fresh
and
clean.
What
did
they
do
after
picnic
They
put
all
the
rubbish
into
the
bin.
设计意图:
通过整体感知课文内容能够帮助学生快速了解学习内容的大体意思,在合作中找出文中的知识点,通过问题回答加深对课文内容细节的理解,从而提高学生阅读能力的训练。
活动7【活动】课后延伸
Is
the
air
important
So
what
should
we
do
then
we
should
keep
the
air
clean.
We
should
protect
our
home,
the
earth
and
let
it
become
clean
and
beautiful
more
and
more.
Now
Let
watch
some
beautiful
pictures.
(观看画面)画面最后停留在带有英文小诗的画面上:
T:
Are
these
pictures
beautiful
How
do
you
feel
I
think
the
sky
is
so
blue.
And
the
air
is
very
clean
and
fresh
in
the
picture.
Rright
Now
let
read
the
sentences.
When
the
sky
blue
again,
the
rivers
become
clean,
and
the
grass
is
always
green,
we'll
live
a
healthier
and
happier
life.
当天空再次湛蓝,
河水变得清澈,
草地永远碧绿,
我们才会拥有更健康更快乐的生活
(学生试读然后齐读)。
活动8【作业】总结评价　作业夯实Homework　
Boys
and
girls,
we
should
know
little
things
can
make
a
big
difference.
Everyday
is
the
World
Earth
Day.
So
the
homework
is
writing
a
short
passage
about
helping
the
Earth.
Do
a
small
thing
to
protect
the
air
after
class.
Then
make
report.
Goodbye,
boys
and
girls.
设计意图:
进一步为学生创设真实的语言环境,让他们在生活中使用语言,训练他们的口语表达能力,这样的调查活动促使学生在实践活动中运用所学英语,增强对所学英语的体验。并让他们在实践中认识到环保要从小事做起,从自我做起。