(共51张PPT)
Unit
13
We’re
trying
to
save
the
earth!
Period(One)
Section
A(1a-2d)
版本:人教版八年级上册
Lead
in
Watch
a
video
and
say
what
you
find.
The
_______
is
polluted.
earth
_______
pollution
_______
pollution
air
water
_______
pollution
noise
Do
you
know
any
other
kinds
of
pollution?
Objectives
To
talk
about
pollution
and
environmental
protection.
2.
To
learn
to
use
the
sentence
patterns.
used
to...but
now
should
do
sth.
3.
To
master
key
words
and
phrases:
litter,
bottom,
fisherman,
coal,
ugly,
advantage,
cost,
wooden,
plastic,
make
a
difference,
lead
to,
instead
of
Warming
up
Do
you
like
it?
a
clean
city…
the
blue
sky…
The
earth
is
polluted.
But…
air
pollution
The
factories
that
burn
coal
pollute
the
air
with
a
lot
of
black
smoke.
n.
煤炭
Factories
put
waste
into
the
river.
water
pollution
mobile
phone
pollution
litter
v.
乱扔
n.
垃圾(不可数)
rubbish
waste
垃圾，废弃物
People
should
throw
away
litter
in
the
bin.
n.
垃圾箱
noise
pollution
There
are
more
cars
on
the
road.
Here
are
some
words
related
to
different
kinds
of
pollution.
Write
them
in
the
box
below.
Then
add
more
words.
loud
music
cars
rubbish
planes
littering
ships
factories
smoking
building
houses
mobile
phones
1a
noise
pollution
air
pollution
water
pollution
____________
____________
_____________
____________
____________
_____________
____________
____________
_____________
____________
____________
_____________
____________
____________
_____________
____________
loud
music
planes
building
houses
mobile
phones
machines
crowds
vehicles
cars
factories
smoking
building
houses
burning
power
plants
rubbish
littering
ships
factories
sewage
Listen
and
complete
the
sentences.
What
was
the
problem?
The
river
was
___________.
Even
the
bottom
of
the
river
was
full
of
________.
There
were
no
more
_____
for
fishermen
to
catch.
really
dirty
rubbish
fish
1b
What
caused
the
problem?
People
are
throwing
_______
into
the
river.
Factories
are
putting
_______
into
the
river.
How
should
the
problem
be
solved?
We
should
write
to
the
____________
and
ask
them
to
___________
the
factories.
Everyone
should
help
to
_________
the
river.
litter
waste
government
close
down
clean
up
Tony:
Hey,
Mark,
maybe
we
could
go
swimming
in
the
river
later
this
afternoon.
Mark:
I
don’t
think
I
want
to
go,
Tony.
Tony:
Why
not?
Mark:
I
was
there
last
weekend
and
the
river
was
really
dirty.
Even
the
bottom
of
the
river
was
full
of
rubbish,
and
there
were
no
more
fish
for
fishermen
to
catch.
Tapescripts:
Tony:
No
way!
It
used
to
be
so
clean.
In
fact,
it
has
always
been
the
nicest
river
in
this
town.
Mark:
Not
anymore.
I
think
people
are
throwing
litter
into
the
river.
Factories
are
also
putting
waste
into
the
river.
Tony:
That’s
terrible!
We
should
write
to
the
government.
They
should
close
down
the
factories.
Mark:
Good
idea!
But
I
think
everyone
in
this
town
should
help
to
clean
up
the
river,
too.
Everyone
should
play
a
part,
not
just
the
government.
used
to
do
sth.
“过去常常……”
表示过去习惯性的动作但如今已不存在。
play
a
part
in
doing
sth.
“参与做某事;
在做某事上起作用”。
1c
Role-play
the
conversation.
Then
make
your
own
conversations
about
the
kinds
of
pollution
in
1a.
The
river
was
dirty.
Even
the
bottom
of
the
river
was
full
of
rubbish.
But
it
used
to
be
so
clean!
Everyone
in
this
town
should
play
a
part
in
cleaning
it
up!
Yes,
but
people
are
throwing
litter
into
the
river.
Play
roles
The
air
was
dirty.
The
smoke
from
factories
was
black.
But
it
used
to
be
so
clean!
We
should
write
to
the
government
and
ask
them
to
close
down
the
factories.
Yes,
but
people
are
polluting
the
air.
Listen
to
the
interview.
Circle
the
kinds
of
pollution
that
Jason
and
Susan
talk
about.
2a
A.
land
pollution
B.
air
pollution
C.
noise
pollution
D.
water
pollution
2b
Listen
again
and
complete
the
sentences.
1.
The
air
is
badly
polluted
because
there
are
_____
_____
on
the
road
these
days.
2.
Factories
that
burn
coal
also
_______
the
air
with
a
lot
of
black
smoke.
cars
pollute
more
3.
There
is
also
too
much
rubbish
and
waste.
People
_________________
things
every
day.
4.
People
are
also
littering
in
____________like
parks.
This
is
turning
beautiful
places
into
ugly
ones.
are
throwing
away
public
places
Tapescripts:
Interviewer:
Today
we’re
talking
to
Jason
and
Susan
about
environmental
problems.
Jason
and
Susan,
can
you
tell
us
about
some
of
the
problems
you’ve
seen?
Jason:
I
think
one
problem
is
that
the
air
is
badly
polluted.
I
hardly
ever
see
blue
skies
anymore.
Susan:
Yes,
and
I
used
to
see
the
stars
clearly.
Interviewer:
What
do
you
think
has
caused
this
problem?
Susan:
Well,
there
are
more
cars
on
the
road
these
days.
Jason:
And
factories
that
burn
coal
also
pollute
the
air
with
a
lot
of
black
smoke.
Interviewer:
What
other
problems
do
you
see?
Susan:
I
guess
there’s
too
much
rubbish
and
waste
in
the
streets.
①
②
Jason:
Yes!
Every
day
people
are
throwing
away
things
like
wooden
chopsticks,
plastic
bowls
and
plastic
bags.
Susan:
They’re
also
littering
in
public
places,
for
example,
during
picnics
in
parks.
This
is
turning
beautiful
places
into
ugly
ones.
Interviewer:
You’re
right.
These
are
serious
problems
for
our
environment.
Next,
let’s
talk
about
the
things
we
can
do
to
help.
③
④
2c
Use
the
information
in
2a
and
2b
to
role-play
conversations
between
Jason
and
Susan.
The
air
has
become
really
polluted
around
here.
I’m
getting
very
worried.
Yes,
I
used
to
be
able
to
see
stars
in
the
sky.
The
problem
is
that…
2d
Role-play
the
conversation.
Interviewer:
Jason
and
Susan,
what
are
your
ideas
for
solving
these
problems?
Jason:
Well,
to
cut
down
air
pollution,
we
should
take
the
bus
or
subway
instead
of
driving.
Susan:
Yeah,
or
ride
a
bike.
There
are
other
advantages
of
bike
riding.
It’s
good
for
health
and
it
doesn’t
cost
anything!
代替，而不是
Interviewer:
Great
ideas!
What
about
waste
pollution?
Susan:
Mmm,
I
think
simple
things
like
bringing
a
bag
to
go
shopping
can
help.
I
started
doing
that
a
year
ago.
Jason:
Me,
too.
Also,
I
never
take
wooden
chopsticks
or
plastic
forks
when
I
buy
takeaway
food.
I
use
the
ones
at
home.
bring的反义词是take
外卖食物
Susan:
And
remember
to
throw
rubbish
in
the
bins
and
keep
public
places
clean
and
beautiful
for
everyone.
Interviewer:
So
together,
our
actions
can
make
a
difference
and
lead
to
a
better
future!
起作用；有影响
导致
Read
and
finish
the
task.
Ways
to
cut
down
air
pollution
take
the
bus
take
the
subway
ride
a
bike
Ways
to
cut
down
waste
pollution
bring
a
bag
to
go
shopping
never
use
wooden
chopsticks
or
plastic
forks
throw
rubbish
in
the
bins
Language
points
1.
We’re
trying
to
save
the
earth!
我们正在竭尽全力拯救地球!
try
to
do
=try
one’s
best
to
do
尽力去做某事
【翻译】
我们将努力在一周内完成这项工作。
We’ll?try?to
finish
the
work
in
a
week.
try相关短语:
try
doing
sth.
试着做某事
try
on?
试穿
try
out?
尝试；试验；试试
2.
It’s
good
for
health
and
it
doesn’t
cost
anything!
cost
v.
花费；使付出
指花费金钱，主语通常是物。
cost的过去式和过去分词均为cost。
sth.
costs
sb.
some
money
某物花费某人多少钱
【翻译】
1)
王先生花了200元买了新衬衫。
The
new
shirt
cost
Mr
Wang
200
yuan.
2)
新电脑花了多少钱？
How
much
does
the
new
computer
cost?
pay,
take
&spend
take，spend，pay都可以表示“花费”，
但用法各有不同。
1)
take多表示花费时间，常用于it
takes
sb.
some
time
to
do
sth.
这一句型中，it作形式主语。
e.g.
It
usually
takes
me
40
minutes
to
cook
the
dinner.
2)
spend多表示花费时间和金钱，主语通常是人，常用于sb.
spend(s)
some
time
/
money
on
sth.和sb.
spend(s)
some
time
/
money
(in)
doing
sth.两种句型。
e.g.
David
spent
2,000
yuan
on
the
new
machine.
My
father
spends
an
hour
(in)
reading
the
newspaper
every
day.
3)
pay多表示花费金钱，主语通常是人，常用于sb.
pay(s)
some
money
for
sth.句型。
e.g.
Tommy
paid
20
yuan
for
his
breakfast
yesterday.
3.
…,
we
should
take
the
bus
or
subway
instead
of
driving.
instead&
instead
of
?instead为副词，意为“代替；反而”，在句中作状语。
instead
of意为“代替；而不是”，后面可接名词、代词、v-ing形式或介词短语等。
4.
So
together,
our
actions
can
make
a
difference
and
lead
to
a
better
future!
1)
make
a
difference
(to…)
(对……)产生重大影响或作用，to是介词。
【拓展】
make
no
difference
to
对……没有影响
make
some
difference
to
对……有一些影响
e.g.
It
makes
no
difference
whether
you
go
today
or
tomorrow.
The
sea
air
has
made
some
difference
to
her
health.
2)
lead
to?意为“导致”。
e.g.
Eating
too
much
sugar
can
lead
to
health
problems.
【链接】
lead
sb.
to
...?可意为“带领某人去……”。
e.g.
His
pet
dog
Lucky
led
us
to
his
house
just
now.
Summary
write
to
...?
给……写信
the
bottom
of
the
river?
河底
throw
litter
into
the
river?
往河里扔垃圾
clean
up
...?
把……打扫干净
land
/
air
/
noise
/
water
/
waste
pollution
土地?/?空气?/?噪音?/?水/?垃圾污染
turn
...
into
...?
把……变成……
cut
down
air
pollution?
减少空气污染
instead
of?
代替
be
good
for
...?
对……有好处
takeaway
food?
外卖食品
用动词的适当形式填空。
1.
We’re
trying
_______
(save)
the
earth.
2.
There
used
to
_____
(be)
clean
and
beautiful.
3.
There
are
too
many
___
for
_________to
catch
(fish).
4.
It’s
bad
for
environment
to
use
_________
(wood)
chopsticks.
to
save
be
fish
wooden
fishermen
Exercise
1.He
___
go
out
with
his
parents,
but
now
he
____
staying
at
home
alone.
A.
used
to;
is
used
to
B.
is
used
to;
used
to
C.
used
to;
used
to
D.
is
used
to;
is
used
to
2.
The
interesting
book
___
me
10
yuan.
A.
took
B.
paid
C.
spend
D.
cost
3.
We
must
do
something
useful
to
___
pollution.
A.
cut
off
B.
cut
up
C.
cut
down
D.
cut
in
4.
Smoking
can
___
lung
cancer.
You’d
bettter
give
it
up.
A．work
on
B．lead
to
C．take
away
D．put
out
Homework
The
earth
is
badly
polluted.
Please
make
a
poster
and
think
of
what
we
can
do.
2.
Preview
the
article
on
page
99.
1.
Make
a
poster!
谢谢
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Unit
13
We’re
trying
to
save
the
earth!
Section
A(1a-2d)练习
一、写出下列词句
1.
v.
乱扔
n.
垃圾；废弃物____
2.
adj.
丑陋的；难看的____
3.
n.
优点；有利条件____
4.
v.
花费 花费；n.价钱
____
5.
adj.
木制的；木头的____
6.
n.
底部；最下部____
7.
n.
渔民；钓鱼的人____
8.
n.
煤；煤块____
9.
adj.
塑料的塑料；n.
塑胶____
10.
n.
外卖食物____
11.
n
.
垃圾箱____
12.
在河床底部____
13．充满了垃圾____
14．把垃圾扔入河中____
15．尽一份力把它清理干净____
16．使空气中充满了黑烟____
17．减少空气污染____
18．产生影响____
19.
这个城镇里的每个人都应当尽一份力把它清理干净！
Everyone
in
this
town
should
____
____
____
____
_____
it
up!
20.
为了减少空气污染，我们应该乘坐公共汽车或地铁，而不是开车。
____
____
____
____
____，we
should
take
the
bus
or
subway
instead
of
driving.
21.
因此，我们齐心协力就能带来变化，创造更加美好的未来！
So
together，____
____
____
____
____
____
and
lead
to
a
better
future!
二.
根据句意及首字母提示填写单词。
1.
We
can
clearly
see
fish
swimming
at
the
b____
of
the
river.
2.
The
girl
seldom
goes
outside
because
of
an
u____
scar(伤疤)
on
her
face.
3.
The
fewer
p
____
bags
we
use,
the
more
beautiful
our
earth
will
be.
4.
The
villagers
used
to
burn
c____
to
get
warm.
5.
Don't
l____
waste
things
everywhere.
三.
用括号内所给单词的适当形式填空。
1.
There
is
a
____
(wood)
table
in
the
middle
of
the
room.
2.
There
used
to
be
many
____
(fisherman)
in
the
village.
3.
Everyone
in
the
class
is
asked
to
play
a
part
in
____
(keep)
the
classroom
clean.
4.
Can
you
tell
me
the
machine's
____
(advantage)?
5.
Her
____
(act)
tell
us
a
lot
about
her
purpose.
四.
根据汉语意思完成句子，每空一词。
1.
这个房间里将有一个聚会，请在聚会后把房间打扫干净。
There
will
be
a
party
in
this
room.
Please
_______
it
_______
after
the
party.
2.
这个篮子里装满了苹果。
This
basket_______
_______
_______
apples.
3.
我们的行动会带来不同，并引领一个更好的未来。
Our
actions
can
_______
_______
_______
and
lead
to
a
better
future.
4.
种植更多的树木可以减轻空气污染。
Planting
more
trees
can
_______
_______
air
pollution.
5.
这座城市里的每个人都应该在保护环境方面出一份力。
Everyone
in
the
city
should
_______
______
____
_______
_______
the
environment.
五.
补全对话。
根据对话内容，从方框中选择合适的选项补全对话。(其中有两项多余)
Bob：Good
morning，Kim.
Kim：Good
morning.
Bob：__1_
It
can
save
a
lot
of
time.
Kim：Well,
I
prefer
walking
to
driving
a
car.
Bob：Mm,
it's
good
for
health
and
the
environment.
Kim：Yes.
The
environment
is
very
important
for
us.__2__
Bob：Yeah,
right.
What
else
can
we
do?
Kim：For
example,
we'd
better
not
buy
clothes
made
of
animal
fur.
Bob：I
agree
with
you.
__3__
Anything
else?
Kim：Don't
use
plastic
bags.
Bob：__4__
Kim：Yes，they
are
really
useful
for
us.
But
they
pollute
our
environment.
Bob：__5_
Kim：We
can
use
cloth
bags
instead
of
plastic
ones.
Bob：That's
a
good
idea.
Oh，it's
late.
I
must
go
now.
See
you!
Kim：See
you!
A.
Everyone
should
do
something
for
it.
B.
Why
don't
you
drive
to
work?
C.
It's
useless
for
protecting
plants.
D.
It's
a
good
way
to
protect
animals.
E.
Why
do
you
go
to
work
in
a
car?
G.
How
can
we
carry
things
after
shopping
then?
参考答案：
一、写出下列词句
litter
ugly
advantage
cost
wooden
bottom
fisherman
coal
plastic
take
away
bin
at
the
bottom
of
the
river
be
full
of
the
rubbish
throw
litter
into
the
river
play
a
part
in
cleaning
it
up
fill
the
air
with
black
smoke
cut
down
air
pollution
make
a
difference
play
a
part
in
cleaning
to
cut
down
air
pollution
our
actions
can
make
a
difference
二.
根据句意及首字母提示填写单词。
bottom
ugly
plastic
coal
litter
三、用括号内所给单词的适当形式填空
wooden
fishermen
keeping
advantages
actions
四、根据汉语意思完成句子，每空一词
1.
clean…up
2.
is
full
of
3.
make
a
difference
4.
cut
down
5.
play
a
part
in
protecting
五、情景交际
1.
B 2.
A 3.
D 4.E 5.
G
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