Lesson 38 The world is a big place 教案 (4)

Lesson
38
The
world
is
a
big
place
教案
1新设计
Lesson
38
The
World
Is
a
Big
Place
2教学目标
Knowledge
aims:
words
and
expressions:
Planet,
total,
increase,
surface,
Indian,
in
total,
one
third,
be
covered
with,
two
thirds
etc..
Skill
aims:
improve
the
students'
listening
reading
and
the
ability
of
expressing
in
English.
Moral:
to
develop
the
students'
interests
of
learning
English
and
know
more
about
the
world.
3学情分析
My
students'
English
are
not
very
good.
Most
of
them
cannot
learn
English
well.
Because
they
are
not
interested
in
it.
So
it's
quite
hard
to
teach
these
students'
English
well.
4
教学重难点
Teaching
important
points
and
difficulties:
The
usage
of
“population”
and
the
expressions
of
fraction.
5教学过程
活动1【讲授】教学过程
Teaching
procedures:
Step1Greeting
and
warming
up
Greet
the
students.
Show
a
map,
then
ask:
“What
can
you
see
in
the
map ”
to
lead
in.
【Through
looking
at
the
world
map,
the
students
will
know
of
the
continents
and
the
oceans,
these
will
help
them
understand
the
following
contents.】
Step
2
Discussion—Think
About
It!
1
How
many
continents
and
oceans
are
there
in
the
world
What
are
they
2
Which
part
of
the
world
do
you
live
in
3
What
do
you
know
about
the
place
where
you
live
【The
three
questions
can
warm
up
the
students
to
think
more
about
the
world.】
Step
3New
words
Teach
them
the
words
until
they
can
read
by
themselves.
Check
to
see
if
they
can
spell
the
words.
Then
complete
the
task
in
Exercise
Book.
【The
words
will
be
strengthened
during
doing
the
exercise.】
Step
4
Listening
task:
true
(T)
or
false
(
F)
Listen
to
the
tape
and
judge
true
or
false.
Play
the
tape
twice
for
listening,
the
third
time
check
the
answers
as
a
class.
(
key
points:
less
than
&
more
than)
【In
this
part,
students
can
practice
and
improve
their
listening
abilities.
This
is
an
independent
work.】
Step
5
Let's
Do
It—No.1
Read
the
lesson
and
match
each
paragraph
with
its
main
idea.【pair
work:
students
work
together
to
work
out
the
answers.
Then
check
their
answers
as
a
class.】
Step
6
Reading
and
language
points
Select
some
students
to
read
the
paragraphs.
Meanwhile,
discuss
the
key
points
in
each
paragraph.
1.
In
the
year
2010,
the
world’s
population
was
over
7
billion
in
total.
在2010年,世界人口超过70亿。
population
n.
人口,人数
1)
集体名词,无复数形式,在句中做主语时,谓语动词用单数形式。
如:The
population
today
is
growing
very
fast.
目前的人口增长很快。
2)
表示人口的多少时,用large或small修饰,如:
China
has
the
largest
population
of
the
world.
中国是世界上人口最多的国家
3)问某地有多少人口时,用What
is/was
the
population
of+地名 如:
What’s
the
population
of
China
中国有多少人口
4)
表示某一范围内有多少人口时,用has
a
population
of+数词。如:
China
has
a
population
of
1.3billion.
中国有13亿人口。
5)
population之前若有分数或百分数修饰时,用于指具体人数作主语时,谓语动词则用复数形式。如:
About
three
fifths
of
the
population
here
are
farmers.
这儿大约有五分之三的人口是农民。
2.
We
can't
live
in
water,
and
only
about
one
third
of
our
planet
is
land.
我们不能居住在水里,而全球只有三分之一的面积是陆地。
one
third
of
our
planet
意思是
“我们星球的三分之一。
one
third
即1/3.
分数的表达方式口诀:分子基,分母序,分子大于1,分母加s。
例如:1/5
one
fifth,
1/9
one
ninth,
2/3
two
thirds,
3/5
three
fifths
特殊分数表达法:
如
1/2
one
half
,1/4
a
quarter,
3/4
three
quarters
【Reading
and
explanation
are
combined
together
will
be
better
to
make
the
students
understand
the
text
thoroughly.】
Step
7
Exercise
Do
the
exercise
to
strengthen
what
the
students
learned.
Choose
the
best
answers:
(
)
1.
____
of
the
students
are
from
the
countryside.
A.
Third
quarter
B.
Three
quarters
C.
Three
quarter
D.
Third
quarters
(
)
2.A
quarter
of
the
students
____
doing
their
books
at
home.
A.
are
B.
is
C.
have
D.
has
(
)
3.The
Yellow
River
is
______
in
China.
A.
second
longest
river
B.
the
second
longest
rivers
C.
the
second
longest
river
D.
the
longest
river
Step
8
Let’s
do
it—No.3
Match
seven
continents
with
their
correct
descriptions.