冀教版英语九年级全一册 Unit 5 Look into Science Lesson 26 Keep the Candle Burning 教学设计

Unit
4
Look
into
Science
Lesson
26
Keep
the
candle
burning
教学设计
一．
教材分析
本单元以look
into
science
为话题。要求学生通过学习本单元，掌握描述科学实验的一些表达方式、词汇和短语。在此基础上能够动手做实验，谈论实验步骤。同时，通过学习这个单元，培养同学们严谨的思路和良好的科学探索精神。本课重点通过实验来进一步巩固重要句型及单词的用法，培养学生热爱科学的意识和动手做实验的兴趣。
二．学情分析
本课是实验课，接近生活，应以动手操作为主，能最大限度的调动学生的积极性，参与学习。
三．教学设计思路
这个实验是我们学做的第一个实验。首先，通过谈话导入本课；然后，通过图片学习生词；接着，教师演示实验过程，用英语描述实验步骤，再分组做实验，让学生仔细观察：瓶子里的水为什么会上升？上升了多少？
四．教学目标
1.
Aims
of
knowledge：
Learn
the
words
for
Lesson
30and
expressions
as
follows:
Experiment
match
light
use
up
science
Learn
the
following
patterns:
Keep
something/somebody
doing
To
make/have/let
something
do
分数表达法
2.Aims
of
abilities：通过本课学习，培养学生在听、读的时候快速获取关键信息的能力，能自己动手做实验，用英语描述实验步骤，进一步引导学生树立自主学习的概念和意识。
3.Aims
of
emotion：通过本课教学，使学生学会积累生活经验,
培养学生的动手能力，引导学生认识到科学的重要性，树立热爱科学的意识。
教学重难点：
1.
Teaching
important
points:
掌握实验操作过程，用英语描述实验步骤。
2.
Teaching
difficult
point:
得到结论
As
the
candle
burns,
it
uses
up
oxygen
in
the
air.
So
the
water
rises
and
fills
about
one-fifth
of
the
jar.
教学方法：
本课采用教师做实验让学生观察，并让学生合上书本复述实验步骤的方法，采用提问、启发、讨论和归纳的教法，让学生容易接受教材知识，理解文章内容，培养学生的语言综合运用能力。
学生学法：听课文
复述课文
讨论
总结
教具准备：多媒体设备，录音机，磁带。
教学过程：
Step1:
Greet
the
whole
class
as
usual.
Step2:
lead-in
Show
a
picture
and
ask:
What
is
the
girl
doing
?
(She
is
doing
an
expeniment.)
Do
you
like
doing
experiments?
Why?
Ok,
Today
We
will
do
an
experiment.
I’m
sure
you
will
like
it.
How
shall
we
do?
What
will
it
tell
us?
Now
Let’s
begin
Lesson
30
Keep
the
candle
burning
!
Step3:
Teaching
of
the
new
lesson
1.
To
show
some
objects.
（展示图片：蜡烛、烛台、火柴、广口瓶、浅口盘、装满水的杯子）
What
are
they?
（学生在看过图片后，教师询问，引起学生对本课新词的回忆与巩固。）
2.To
do
the
experiment
and
asks
Ss
to
make
observation.
Then
describle
the
steps
in
English.
3.
Ask
Ss
to
do
the
experiment
in
group
and
pay
attention
to
the
steps.
4.One
student
do
the
experiment
in
the
front
of
class,
the
others
retell
steps.
Then
ask
one
student
to
do
the
experiment
and
describle
the
steps
in
English
by
himself.
The
others
make
observation
.The
teacher
ask:
What
will
happen?
(The
candle
stops
burning,
The
water
inside
the
jar
rises.)
5.Listen
to
the
tape
and
answer
the
quwstions.]
How
does
the
water
in
the
jar
rise?
How
far
does
the
water
rise?
Why?
6
.
Language
points:（展示知识点）
1).
keep
sb.
/sth.
Doing
sth..
使某人/某物保持做某一动作
2).
make
/let
/
have
sth./sb.
do
sth..
使某人/某物做某事
3).use
sth.up
用尽
eat
up
吃光
drink
up
喝光
4).
One-fifth
五分之一
二分之一
a
/
one
half
(one
second)
四分之一
one
fourth
(a
quarter)
十分之九
nine-tenths
口诀：分子基，分母序，分子大于1，分母加s.
Step5:
Do
some
exercises:
1.
Fill
in
the
blanks.
First,
______the
candle____
the
candleholder.
_______,
put
it
in
the
_____.
Third,
____the
dish_____
full
of
water.
Fourth,
_____
the
candle.Then,
let
the
candle
______
for
2
or
3
minutes.
Finally,
put
the
jar
_____
the
candle
____
thetop
of
the
jar
rests
on
the
dish.
what
can
you
find?
The
water
in
the
jar
_____
because
the
candle
has
____
up
the
_______in
the
air
in
the
jar.
2.
Correct
the
mistakes:
1).There
are
lots
of
matchs
in
the
small
box.
2).Can
you
let
my
uncle
laughing?
3).You’re
very
ill,
so
you
must
stop
to
smoke.
4).There
is
about
one
–
five
oxygen
in
the
air.
5).There
are
about
two
–
third
students
in
the
classroom.
6).
I
used
out
my
money.
Can
you
lend
me
some?
3.用所给单词的正确形式填空：
1).You
are
very
tired.
You’d
better
stop
______(have)
a
rest.
2).
What
do
you
use
to
make
a
candle
________(burn)?
3).
You
should
put
the
jar
over
the
candle
________(careful).
4).
He
__________(light)
a
candle
and
the
room
was
bright.
5).
_______(two),
ask
the
students
to
guess
what
will
happen.
6).
He
kept
the
candle
_________(burn)
for
two
hours.
7).
It’s
time
___________(play)
basketball.
8).
What
about
___________(go)
for
a
walk?