(共19张PPT)
Unit
2
Saving
the
Earth
Topic
1
Pollution
has
caused
too
many
problems.
Section
D
1）The
man
working
in
a
_________
factory
goes
deaf
because
of
the
loud
_______.(noise
/
noisy)
2）Burning
coal
can
_______
the
air,
and
we
call
it
air
_______.
(pollute
/
pollution)
3）Using
too
many
chemicals
in
the
land
can
cause
________food
and
it’s
bad
for
people’s
________.
(health
/
healthy
/
unhealthy)
4）Strong
light
is
_______
to
our
eyes
and
does
great
_______
our
body.
(harm
/
harmful)
5）Mrs.
Zhou
can
hardly
________
because
of
the
bad
air.
And
she
often
coughs
day
and
night,
out
of
________.
(breath
/
breathe)
课前检测
根据情景提示，完成下列各题
1.你想询问对方身体怎么样，可以这样问：
2.你想知道对方生病多久，可以这样问：
3.你想知道对方正在干什么，可以这样问：
4.你想知道对方住在美国怎样，可以这样问：
5.你想知道对方喜欢的电影类型，可以这样问：
课前检测
It
_____
(be)
beautiful
in
the
past.
Kangkang
_______
(go)
there
two
years
ago.
The
flowers
and
grass
___________
(go).
Everything
_____________
(change).
Mrs.
Zhou
____________
(be)
like
this
since
last
week.
She
______________
(not
see)
a
doctor
yet.
was
went
have
gone
has
changed
has
been
hasn’t
seen
Simple
past
强调过去
Present
perfect
强调现在
They
are
caused
by
pollution.
Read
through
Sections
A-C
and
fill
in
the
blanks
with
the
correct
words.
Grammar
I
_____
(go)
there
two
years
ago.
There
______
(be)
lots
of
flowers
and
grass.
What
_________________
(happen)
here?
I
have
______
(be)
like
this
since
last
week.
The
flowers
and
grass
____________
(go)!
been
were
has
happened
have
gone
went
Simple
Past
＆Present
Perfect
Oh,
what
a
_______!
There
are
several
chemical
factories
_______
waste
water
into
the
stream.
What’s
______,
the
factory
makes
too
much
noise…
Noise
is
_________
to
human’s
health.
People
who
work
and
live
in
noisy
conditions
often
______
deaf.
…many
teenagers
in
America
can
hear
no
______
than
65-year-old
people
do,
…
…does
great
_______
to
people’s
hearing.
Functions
shame
pouring
worse
go
harmful
better
harm
1.
They
are
bad
for
our
health
in
many
ways.
They
____________to
our
health
in
different
ways.
2.
People
may
lose
their
hearing
if
they
work
in
a
noisy
place
for
a
long
time.
If
people
work
in
noisy
conditions
for
a
long
time
they
may
have
______________.
3.
Noise
pollution
can
make
people
deaf.
People
may
______
deaf
_____________
noise
pollution.
1b
Read
and
understand
the
first
sentence.
Then
complete
the
second
one.
hearing
loss
do
harm
go
because
of
/
are
harmful
There
are
many
kinds
of
pollution
around
us,
air
pollution
light
pollution
litter
water
pollution
soil
pollution
noise
pollution
including
Pre-reading
While-reading
Task
1
Read
paragraph
2,
and
fill
in
the
blanks.
Pollution
Cause
Effect
air
pollution
burning_____,
_____
and
_____
_____
eyes
and
_________
problems
gas
oil
coal
sore
breathing
create
/kri?e?t/
v.
造成，创造
creative
/kri?e?t?v/
adj.
创造性的
creation
/kri?e??n/
n.
创造；创造物
/k??l/
n.
煤
Task
2
Read
paragraph
3,
and
fill
in
the
blanks.
Pollution
Cause
Effect
soil
pollution
_____
is
everywhere,
use
too
many
__________
______
environment
and
_________
food
litter
chemicals
dirty
unhealthy
In
the
fields,
farmers
use
too
many
chemicals
which
destroy
the
soil.
With
the
increase
in
population
and
the
development
of
industry,
litter
is
everywhere.
Task
3
Read
paragraph
4,
and
fill
in
the
blanks.
Pollution
Cause
Effect
noise
pollution
_______________
place
for
a
long
time
make
people
_____
and
cause
____________
pressure
work
in
a
noisy
deaf
high
blood
high
blood
pressure
/bl?d
?pre??(r)/
高血压
Task
4
Read
paragraph
5,
and
fill
in
the
blanks.
Pollution
Cause
Effect
light
pollution
_______
light
kinds
of
________,
bad
for
________
strong
illnesses
eyes
Pollution
Cause
Effect
air
pollution
burning_____,
_____
and
_____
_____
eyes
and
_________
problems
soil
pollution
_____
is
everywhere,
use
too
many
__________
______
environment
and
_________
food
noise
pollution
_______________
place
for
a
long
time
make
people
_____
and
cause
____________
pressure
light
pollution
_______
light
kinds
of
________,
bad
for
________
gas
oil
coal
sore
breathing
litter
chemicals
dirty
unhealthy
work
in
a
noisy
deaf
high
blood
strong
illnesses
eyes
What
is
the
passage
mainly
about?
A.
Air
pollution.
B.
Light
pollution.
C.
Litter.
D.
All
sorts
of
pollution.
Nobody
likes
the
pollution.
I
hope
our
planet
will
become
and
our
heath
will
be
with
pollution.
Let's
be
people.
greener
better
less
greener
Task
5
Read
passage
again,
find
the
main
idea.
planet
/?pl?n?t/
n.
行星
Project
Making
a
Wall
Newspaper
About
Pollution
1.
Collect
some
pictures
about
pollution.
2.
What
kind
of
pollution
does
each
picture
show?
Work
in
groups
and
discuss
its
bad
effects.
3.
Make
a
wall
newspaper
about
different
kinds
of
pollution
and
the
harm
caused
by
them.
Post-reading
summary
We
learn:
1.
Make
a
wall
newspaper
in
English.
2.
Tell
the
differences
between
Simple
Past
and
Present
perfect.
I
went
there
two
years
ago.
I
have
been
like
this
since
last
week.
We
can:
1.
Some
words:
coal,
create,
blood,
planet
2.
Some
phrases:
in
many
ways,
high
blood
pressure,
as
well
3.
Some
sentences:
With
the
increase
in
population
and
the
development
of
industry,
litter
is
everywhere.
Exercises
根据汉语意思完成句子。
1.
如今，很多人患有高血压。
Nowadays,
many
people
have
_____
______
________.
2.
动物可以在很多方面帮助人们。
Animals
can
help
people
____
_____
______.
3.
迈克会打篮球，他跑步也很快。
Mike
can
play
basketball.
He
runs
fast
____
______.
4.
随着工业的发展，污染越来越严重。
____
____
____________
___
industry,
pollution
has
become
_____
_____
_____
serious.
high
blood
pressure
in
many
ways
as
well
With
the
development
of
more
and
more
Exercises
单项选择
(
)
1.
Linda
has
many
hobbies,
________
listening
to
music,
collecting
coins,
going
cycling
and
so
on.
A.
for
example
B.
including
C.
about
D.
and
(
)
2.
There
is
___
pollution
in
the
world.
We
must
stop
it.
A.
much
too
B.
too
much
C.
many
D.
too
many
(
)
3.
_______
the
increase
in
population,
food
has
become
a
serious
problem.
A.
And
B.
By
C.
To
D.
With
(
)4._____
the
environment
is
important
for
human
beings.
A.
Take
care
of
B.
Took
care
of
C.
Taking
care
of
D.
Take
the
care
of
B
D
C
B
