Lesson 20 A Computer helps! 教案

Lesson
20
A
Computer
helps!
教案
1教学目标
Knowledge
objects:
By
the
end
of
the
lesson,
the
students
will
be
able
to
read,
understand
and
use
the
new
words
and
phrases.
Such
as
enter,
key,
search,
hide
(hid/hidden
),
depend
on.
Ability
objects:
1.To
be
able
to
search
for
the
information
we
need
on　the
Internet;
2.
To
talk
about
Easter.
Moral
objects:
To
be
happy
to
contact
and
learn
about
foreign
cultures.
2学情分析
八年级的学生正处于青春期,思维活跃,认知的发展变化迅速,有自己的看法和观点。在英语学习上,不仅想学到课本上的知识,还想了解到更多的异国文化,开阔自己的视野,从英语学习中获得更多的知识和能力。本课的内容很容易吸引学生的兴趣,激发学生利用互联网进行搜索有关英语学习方面的探究心理。
3重点难点
1.
Key
Points:
Master
the
new
words
and
phrases,
the
meaning
of
text.
2.
Difficult
Points:
To
use
the
new
words
and
phrases
to
talk
about
how
to
search
for
information
on
the
computer.
4教学过程
活动1【导入】Step1：　Greeting　and　Lead－in
Teacher’s
activities
Students
’activities
Aims
1.Greeting:What’s
the
weather
like
today How
are
you
today
The
Ss
answer
the
questions
Motivate
the
Ss
2.
Lead-in:
Show
two
pictures
and
tell
"laptop”
from
“computer”
Learn
new
words“laptop”
Lead
to
the
new
words
of
the
text
活动2【讲授】Step2：　New　Words
Step2:
New
Words
Teacher’s
activities
Students
’activities
Aims
1.
Play
the
audiotape
for
the
new
words.
The
Ss
listen
and
read
aloud
along
with
the
audiotape.
Encourage
them
to
imitate
the
pronunciation
they
hear.
2.
Ask
Ss
to
read
after
teacher.
The
Ss
read
then.
3.
Ask
Ss
to
read
new
words
together.
The
Ss
read
together.
Help
Ss
to
remember
the
pronunciation
and
spelling
of
the
new
words.
活动3【讲授】Step
3：New
Text
Step3:
New
Text
Teacher’s
activities
Students’
activities
1.
Q1:
Do
you
often
search
for
information
on
the
Internet
How
The
Ss
try
to
think
of
the
question.
Encourage
Ss
to
find
the
answer
in
Part
I
of
the
text.
2.
Play
the
audiotape
for
Part
I
of
the
text.
The
Ss
listen
and
read
aloud
along
with
the
audiotape.
Encourage
them
to
imitate
the
pronunciation
they
hear.
3.
Give
answer
and
show
two
pictures
Answer:
We
can
enter
some
key
words
into
a
search
engine(搜索引擎)
to
find
information
on
the
topic.
The
Ss
try
to
give
answer.
Instruct
Ss
to
find
the
answer
in
the
text.
4.
Lead
to
today’s
topic:
Easter
1.　Q2:
What
do
you
know
about
Easter
1)
What
is
Easter
2)
When
is
Easter
3)
How
do
people
celebrate
Easter
The
Ss
read
the
Part
II
of
the
text
and
try
to
find
answers.　To
get
to
know
the
content
about
the
lesson.
2.
Introduce
some
background
information
about
Easter.
The
Ss
read.
Know
more
about
Easter.
3.
Read
the
lesson
again
and
fill
in
the
blanks.　The
Ss　read
the
lesson
again　and
do
exercise
2.
To
practice
their
speaking　abilities.
活动4【讲授】Step
4
Language
points
Step
4:
Language
points
1.
key
n.
钥匙,键,关键
adj.
关键的,主要的
Eg.
她正在寻找车钥匙
She
is
looking
for
the
car
key.
这是一个关键的问题
This
is
a
key
question.
2.“one
of
…
”
意为“……之一”
“one
of
+
the
+形容词的最高级
+
可数名词的复数”,意为“最……之一”,做主语,当单数。
Eg.
★Tom是我们班上最高的男生之一.
One
of
the
tallest
boys
in
our
class
is
Tom.
★One
of
my
questions
____
(be)
how
to
learn
English
well.
★Wang
Li
is
one
of
_____________
(clever)
girls
in
our
class.
3.
depend
on
依赖于,取决于,依……而定。
Eg.★孩子们不应该总依赖于他们的父母亲。
Children
should
not
always
depend
on
their
parents.
★我们的旅行取决于天气。
Our
trip
depends
on
the
weather.
★All
living
things
_________the
sun
for
their
growth.
4.
in
this
way
用这种方法,在这一点上
in
the
way
挡道;妨碍(某人)
on
the
way
在路上
by
the
way
顺便问一下
in
a
way
在某种程度上
★
____this
way,
he
finally
found
his
lost
son.
★Your
car
is
____the
way.
★
____the
way,
when
will
you
leave
5.
Symbols
of
=
a
symbol
of
……的象征
Eg.
★鸽子是和平的象征。
Doves
are
symbols
of
peace.
★老虎是勇气的象征。
Tiger
is
a
symbol
of
courage.
(Students
’activities:
The
Ss
think
of
the
points
and
write
down
some
notes.)
活动5【活动】Step5：Guessing
Game
Step
5:
Guessing
Game
Teacher’s
activities
Students
’activities
Aims
Guess
what
festival
it
is.(Show
pictures
one
by
one)
The
Ss
think
about
and
answer.
Relaxed
and
interesting.
活动6【练习】Step6：　Group　work
Teacher’s
activities
Students
’activities
Aims
Read
the
lesson
again
and
fill
in
the
mind
map.(Let’s
Do
It
No.3)
The
Ss
work
in
groups
to
finish.
Team
work.
活动7【作业】Step7：Homework
Q:
Do
you
know
an
important
festival
in
spring
in
China
Search
for
some
information
and
write
a
report
about
it.
1.
Perfect
their
maps
for
their
festivals.
2.
Write
about:
Spring
Festival