(共31张PPT)
Unit
2
Saving
the
Earth
Topic
1
Pollution
has
caused
too
many
problems
.
Section
A
仁爱科普
九年级上
Lead
in
Choose
the
best
place
for
a
picnic
and
tell
us
why
you
choose
that
place.
I
think
…is
the
best
choice.
The
air
there
is
fresh.
We
can
fly
kites
on
the
grass.
Have
you
ever
had
a
picnic
Pre-listening
Kangkang,
Jane,
Maria
and
Michael
are
planning
a
picnic
for
Sunday.
They
will
go
to
the
West
Hill.
Two
years
ago
There
were
lots
of
flowers
and
grass.
We
could
see
bees
and
butterflies
dancing.
bee
butterfly
The
West
Hill
was
beautiful
The
air
was
fresh
and
the
water
was
clean.
The
flowers
and
grass
have
gone!
Oh,
my
goodness.
What
a
mess!
Look!
There
are
several
chemical
factories
pouring
waste
water
into
the
stream.
=
have
disappeared.
Is
it
beautiful
now
What
has
happened
there
waste
water
waste
paper
Waste
water.
浪费水。
Don’t
waste
paper.
不要浪费纸。
waste
adj.
v.
[we st]
New
words
There
are
several
chemical
factories
pouring
waste
water
into
the
stream.
有几家化工厂正在往小溪里排放废水。
There
be…doing
sth…
……有……在做某事
e.g.
There
are
some
people
waiting
for
the
bus
at
the
bus
stop.
New
words
1b
Listen
to
1a
and
mark
the
words
with
P
(Past)
or
N
(Now).
____
beautiful
____
butterflies
____
dirty
____
grass
____
terrible
____
factory
____
bees
____
fresh
____
clean
____waste
water
P
P
N
P
N
N
P
P
P
N
Let’s
do
(Kangkang.
Jane.
Maria
and
Michael
are
planning
a
picnic
for
Sunday.)
Jane
and
Maria:
Kangkang,
where
shall
we
go
Kangkang:
What
about
the
West
Hill
I
went
there
two
years
ago.
It
was
a
beautiful
place.
There
were
lots
of
flowers
and
grass.
The
air
was
fresh
and
the
water
was
clean,
and
you
could
see
bees
and
butterflies
dancing.
Michael:
Sounds
great!
Let's
go
there.
Let’s
learn
Oh,
what
a
mess!
The
flowers
and
grass
have
gone!
The
water
isso
dirty.
It
smells
terrible.
What
has
happened
here
What
a
shame!
Look,
there
are
several
chemical
factories
pouring
waste
water
into
the
stream.
Everything
has
changed.
Do
you
still
want
to
have
a
picnichere
Of
course
not.
Kangkang:
Maria:
Kangkang:
Michael:
Jane:
Let’s
learn
(On
Sunday,
they
come
to
the
West
Hill.)
Watch
the
video
and
then
role
play.
(Kangkang,
Jane,
Maria
and
Michael
are
planning
a
picnic
for
Sunday.)
J&Maria:
Kangkang,
where
…
K:
What
about…
I
went…
It
was…There
were…
The
air…,
and
you…
M:
Sounds…!Let’s…
(On
Sunday,
they
come
to
the
West
Hill.)
K:
Oh,
what
...!
The
flowers…!The
water…It
smells…What
has…
Maria:
What…!
Look,
there
are…
K:
Everything…
M:
Do
you…
J:
Of…
Show
time
1c
Read
1a
and
complete
the
sentences
in
the
table.
Then
retell
1a
to
your
partner.
Two
years
ago
Now
1.
It
was
a
_______________.
2.
There
were
_______________________.
3.
The
air
was
_______________________
and
you
could
see
_______________________.
1.
___________________
have
gone.
2.
The
water
is
________and
smells
___________.
3.
There
are
several
________________
pouring
_______________
into
the
stream.
4.
_____________has
changed.
beautiful
place
lots
of
flowers
and
grass
fresh
and
the
water
was
clean
bees
and
butterflies
dancing
The
flowers
and
grass
so
dirty
terrible
chemical
factories
waste
water
Everything
Two
years
,
it
place.
There
.
The
air
and
the
water
,
and
you
But
now
everything
.
The
flowers
and
grass
.The
water
and
smells
.
What
here
Look,
there
are
several
chemical
factories
the
stream.
Oh,
!
ago
was
a
beautiful
were
lots
of
flowers
and
grass
was
fresh
was
clean
could
see
bees
and
butterflies
dancing
has
changed
have
gone
is
so
dirty
pouring
waste
water
into
What
a
shame
terrible
has
happened
What
a
shame
…you
could
see
bees
and
butterflies
dancing.
你还能看见蜜蜂和蝴蝶在飞舞。
点拨:
see
sb./sth.
doing
sth.
看见某人/某物正在做某事
对比:
see
sb./sth.
do
sth.
看见某人/某物做了某事(全过程)
拓展：类似的动词还有
hear,
watch,
find,
feel
…
e.g.
(1)
I
saw
Jack
_____
soccer
there
when
I
walked
past
the
playground.
A.
to
play
B.
playing
C.
played
D.
play
(2)
I
saw
her
____
the
road
just
now.
A.
cross
B.
crossed
C.
crosses
D.
to
cross
B
A
Language
points
2.
The
flowers
and
grass
have
gone！花和草都消失了。
have/has
gone
不见了，消失了
e.g.
我的钱不见了。___________________
My
money
has
gone.
3.
Sounds
great
!
听起来真棒！
It
smells
terrible.
气味真难闻。
sounds
great
，smells
terrible
系表结构：系动词
+
形容词
初中常见的系动词总结：
be/keep/feel/smell/sound/taste/look/seem…+形容词
e.g.
1)音乐听起来很棒。______________________
2)我感到很开心。
______________________
The
music
sounds
great.
I
feel
very
happy.
4.
Look,
there
are
several
chemical
factories
pouring
waste
water
into
the
stream.
看，有几家化工厂正在往小溪里排放废水。
e.g.
请把红酒倒进杯子里
Please
_____
the
red
wine
____
the
glass.
pour
into
点拨(1)：there
be
+
sb./sth.
+
doing
sth.
有某人/某物正在做某事
点拨(2)
:
pour…into…
把……倒入……
e.g.
听！有个人在隔壁唱歌。
Listen!
___
___
someone
______
in
the
next
room.
There
is
singing
2
Work
in
pairs.
Look
at
the
pictures
and
make
up
conversations
similar
to
the
example
with
your
partner.
Example:
A:
There
were
lots
of
flowers
and
grass
when
I
visited
the
village
last
year.
B:
But
now
the
flowers
and
grass
have
gone.
A:
What
has
happened
here
B:
The
villagers
have
destroyed
them.
village/flowers
and
grass
villagers/destroy
Activity
hill
/
trees
farmers/cut
down
A:
There
were
lots
of
trees
when
I
visited
the
hill
last
year.
B:
But
now
the
trees
have
gone.
A:
What
has
happened
here
B:
The
farmers
have
cut
them
down.
Activity
2
Work
in
pairs.
Look
at
the
pictures
and
make
up
conversations
similar
to
the
example
with
your
partner.
lake/fish
factory/pollute
A:
There
were
lots
of
fishes
when
I
visited
the
lake
last
year.
B:
But
now
the
fishes
have
gone.
A:
What
has
happened
here
B:
The
factory
has
polluted
it.
Activity
2
Work
in
pairs.
Look
at
the
pictures
and
make
up
conversations
similar
to
the
example
with
your
partner.
3
A.
Listen
to
the
sentences
and
number
the
pictures.
5
3
2
1
4
6
1.
People
_____
_____
_____
too
many
trees,
so
I
don’t
have
enough
leaves
to
eat.
2.
I
live
in
trees
but
now
many
trees
_____
_____.
3.
I
like
leaves
and
grass,
but
now
they
_____
____________.
4.
I
_____
_____
hungry
for
months
because
of
less
bamboo.
5.
Human
polluted
the
sea,
so
I
_____
_____
_____.
6.
The
water
_____
_____
many
years
ago.
But
it
_____
_____
_____
for
me
to
live
in
now.
B.
Listen
again
and
complete
the
sentences.
have
cut
down
have
gone
have
disappeared
have
been
don’t
live
happily
was
clean
is
too
dirty
Activity
Talk
about
how
many
kinds
of
pollution
you
know
and
make
a
list.
Air
pollution
空气污染
Noise
pollution
噪音污染
Water
pollution
水污染
Soil
pollution
土壤污染
Activity
4
Work
in
groups
and
talk
about
pollution
in
a
place
you
are
familiar
with.
The
following
sentences
may
help
you.
…ago,
it
was…
Now,
…
have/
has
gone.
What
has
happened
Everything
has
changed.
Oh,
my
goodness!
Activity
根据汉语意思完成句子。
1.大风过后，所有的花消失了。
After
the
strong
wind,
all
the
flowers
____
____.
2.公园里有个女孩正在放风筝。
_____
____a
girl
____
____
______in
the
park.
3.请不要把垃圾倒入河里。
Don’t
_____
litter
______the
rivers.
4.看，一个男孩正在砍树。让我们去阻止他。
Look!
A
boy
is
______
_______
the
tree.
Let’s
go
and
stop
it.
have
gone
There
is
flying
a
kite
pour
into
cutting
down
Exercise
What
have
we
done
No
Clean
water
to
drink
Dirty
air
Green
house
effect
Melting融化
ice
Homeless
animals
Summary
Some
phrases:
see
sb.
doing
sth.,
pour…into…,
have/has
gone
2.
Some
sentences:
You
could
see
bees
and
butterflies
dancing.
The
flowers
and
grass
have
gone！
It
smells
terrible.
(4)
There
are
several
chemical
factories
pouring
waste
water
into
the
stream.
1.
Some
words:
bee,
butterfly,
mess,
shame,
several,
pour,
waste,
destroy,
pollute,
goodness
Homework
1.
Recite
the
new
words
and
useful
expressions.
2.
Recite
1a.
3.
Finish
Section
A
in
your
workbook.
谢谢
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Unit
2
Saving
the
earth
Topic
1
Pollution
has
causes
too
many
problems
Section
A
同步练习
一、用所给动词的适当形式填空。
1.
When
I
entered
the
room,
I
saw
Maria
________
(read)
a
Chinese
book.
2.
What
a
shame!
The
flowers
and
trees
in
the
park
_________
(go).
3.
Everything
_____________
(change)
in
the
past
few
years.
4.
Pandas
don’t
have
enough
bamboos
________
(eat)
now
because
of
the
pollution.
5.
—
Where
have
they
been
—
They
__________
(be)
to
the
Great
Wall.
They
_______
(have)
a
good
time
there
the
day
before
yesterday.
二、选择题。
1.
This
silk
dress
___
so
smooth.
It’s
made
in
China.
A.
feels
B.
smells
C.
sounds
D.
tastes
2.
—
What
do
you
think
of
the
new
foreign
teacher
Thomson
—
Pretty
good.
I
think
he
___
a
great
job
so
far.
A.
does
B.
did
C.
has
done
D.
was
done
3.
Our
math
teacher
___
in
our
school
for
20
years
and
he
___
here
when
he
was
23
years
old.
A.
has
taught
;
has
come
B.
taught
;
come
C.
taught
;
came
D.
has
taught
;
came
4.Look!
There
are
some
boys
________
on
the
playground.
A.
play
football
B.
are
playing
football
C.
playing
football
D.
plays
football
5.
—
I’m
sorry
I
can’t
go
shopping
with
you.
I
am
ill.
—
________
A.
What
a
mess!
B.
What
a
shame!
C.
What
a
pity!
D.
B
and
C
三、完形填空。
The
earth
is
our
home
and
we
must
take
good
care
of
it.
That
is
to
say
we
must
1
the
land,
air
and
water
clean.
But
man
2
a
lot
of
pollution
on
earth
since
he
first
made
a
fire,
washed
his
clothes
in
the
river
and
threw
3
on
the
ground.
Many
years
ago,
pollution
was
not
so
serious
4
there
were
not
so
many
people.
There
was
enough
5
air,
land
and
water.
When
the
land
or
the
river
was
dirty
in
one
place,
man
moved
to
6
place.
Man
now,
7
,is
slowly
polluting
the
whole
world
and
there
is
neither
enough
clean
air,
nor
clean
land,
nor
clean
water.
The
more
people
there
are
in
one
place,
8
environment
they
maybe
have.
Perhaps
you
9
it
is
endless
for
people
to
produce
pollution.
10
,we
are
glad
to
tell
you
that
people
have
come
to
know
the
danger
of
pollution
and
more
and
more
people
are
working
hard
to
protect
our
earth.
（
）1.A.have
B.
take
C.
watch
D.
keep
（
）2.A.produced
B.
has
produced
C.
is
producing
D.
will
produce
（
）3.A.rubbish
B.
something
clean
C.
something
useful
D.
food
（
）4.A.so
B.
if
C.
because
D.
but
（
）5.A.clean
B.
clear
C.
dirty
D.
fresh
（
）6.A.other
B.
the
other
C.
another
D.
others
（
）7.A.although
B.
however
C.
too
D.
but
（
）8.A.the
worst
B.
the
worse
C.
the
bad
D.
worse
（
）9.A.are
glad
B.
are
pleased
C.
afraid
D.
are
afraid
（
）10.A.Quickly
B.
Especially
C.
Luckily
D.
Angrily
答案：
一、1.reading
2.have
gone
3.has
changed
4.to
eat
5.have
been
had
二、1-5:
ACDCD
三、1.
D
2.B
3.A
4.C
5.A
6.C
7.B
8.B
9.D
10.C
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