(共17张PPT)
Unit
2
Saving
the
Earth
Topic
2
All
these
problems
are
very
serious.
Section
B
Language
goals
By
the
end
of
the
class,
you
will
be
able
to
Master
the
following
words
,phrases
and
sentences:
Words：
none,
rubbish,
wild,
nobody,
worst,
situation,
punish,
everybody
Phrases:
here
and
there,
worst
of
all
Sentences：①None
of
us
likes
pollution
.
②
Don’t
spit
anywhere
in
public.
③
Everyone
should
care
for
wild
animals
and
plant
more
trees
.
④We
should
do
everything
we
can
to
protect
the
environment.
⑤
We
shouldn’t
leave
rubbish
here
and
there.
Let’s
enjoy
an
MV
about
Tenger’s
Heaven.
Please
describe
some
beautiful
scenes
in
this
song.
Tips:
a
blue
sky
with
white
clouds.
the
running
horses.
large
green
grass
clear
water
in
the
beautiful
lake.
Look
and
say
What
can
you
see
in
the
pictures
air
pollution
Pair
work
Talk
in
pairs
after
the
example.
Example:
A:
Do
you
know
air
pollution
is
a
serious
problem
B:
Yes,I
do.
/No,
I
don’t
A:
What
causes
air
pollution
B：The
factories
produces
waste
gas./…
A:
What
are
the
effects
of
air
pollution
B:
It
is
hard
for
people
to
breathe./…
A:
What
should/shouldn’t
we
do
to
protect
the
environment
B:
As
students,
we
should/shouldn’t…
.
Listen
and
answer
the
questions.
(1)
What’s
the
article
about
(2)
What
should
we
do
and
not
do
to
protect
the
environment
2
3
4
1
5
1b
Listen
to
1a
and
number
the
following
pictures.
1.None
of
us
likes
pollution.
没人喜欢污染。
none
pron.没有一个，
毫无
none和no
one
的区别;
No
one
1)不与of连用；2)谓语动词用单数；3)只能指人，但不具体指什么人；4)一般用来回答who,及含anyone,
anybody引起的疑问句。
None
1)可与of连用；2)谓语动词用单或复数；3)具体指什么人或物；
4)一般用来回答how
many
+n,
how
much
+n及含any
+n引起的疑问句。
Language
Points
4.But
the
government
is
doing
something
useful
to
protect
the
environment.
政府正在做一些有益的事情来保护环境。
3.We
shouldn’t
leave
rubbish
here
and
there.
我们不应该随处乱扔垃圾。
在多处
rubbish
n.垃圾，废弃物
2.
Everyone
should
care
for
wild
animals
and
plant
more
trees
.
每一个人都应该爱护野生动物，种更多的树。
wild
adj.野生的，野的
不定代词+形容词
1c
Read
1a
and
complete
the
table.
Should
do
Shouldn’t
do
1.____
____
wild
animals
2.plant
_____
_______
3.do
___________
we
can
1._______
rubbish
here
and
there
2._______anywhere
in
public
3.________
on
grass
4.
pick
_________
care
for
more
trees
everything
leave
spit
walk
flowers
thing
body
one
where
some
any
every
no
Who
can
fill
it
quickly
something
somebody
someone
somewhere
anything
anybody
anyone
anywhere
everything
everybody
everyone
everywhere
nothing
nobody
nowhere
Dear
Headmaster,
I’m
writing
to
tell
you
_________important.
Nobody
likes
to
be
untidy.
However,
some
students
throw
waste
paper
and
bottles
___________.
We
all
need
a
quiet
place
to
study,
but
some
students
often
make
too
much
noise
at
school.
Worst
of
all,
some
of
them
are
quite
rude
when
talking
to_______.
__________________
knows
their
behavior
is
bad,
but
______of
us
knows
how
to
stop
them.
I
think
we
should
make
rules
to
change
the
situation.
________
who
breaks
the
rules
will
be
punished.
Perhaps
it
will
be
hard
for
us
to
keep
the
rules
in
the
beginning,
but
if___________________does
his
or
her
best
to
follow
the
rules,
our
school
environment
will
improve.
Sincerely,
Kangkang
Everyone/Everybody
none
everyone/everybody
Anyone
2
Listen
to
the
letter
and
help
Kangkang
to
complete
it
.
Then
read
it
aloud
as
accurately
as
possible.
others
everywhere
something
4
Discuss
the
following
questions
in
groups
and
try
to
find
the
solutions.
1.Do
you
have
any
bad
habits
when
you
are
at
school
What
are
they
___________________________________
2.How
can
you
make
your
school
look
better
___________________________________
You
can
choose
the
phrases
to
use:
1.
It
says
that
…
2.
as
a
result
3.
something
useful
4.
None
of
…
5.
here
and
there
6.
care
for
7.
Worst
of
all
8.
make
rules
9.
change
the
situation
10.
Perhaps
11.
obey
the
rules
12.
do
one’s
best
Make
a
speech
about
protecting
our
environment.
Use
everything,
everyone,
anywhere,
something
to
fill
in
the
blanks.
But
the
government
is
doing
_________
useful
to
protect
the
environment.
____________
should
care
for
wild
animals
and
plant
more
trees.
Don’t
spit
_____________
in
public.
We
should
do
_________
we
can
to
protect
the
environment.
something
Everyone
anywhere
everything
Exercises
Homework
1.
Memorize
the
useful
expressions
and
key
sentences
which
we
learn
today.
2.
Preview
Unit
2
Topic
2-Section
C.
Bye-bye!(共21张PPT)
Unit
2
Saving
the
Earth
Topic
2
All
these
problems
are
very
serious
Section
D
Language
goals
By
the
end
of
the
class,
you
will
be
able
to
1.Master
the
following
words
,phrases
and
sentences:
Words：
avoid,
discover,
thirsty,
nearly,
law
Phrases:
day
by
day,
be
short
of
Sentences：①But
people’s
need
for
water
is
increasing
day
by
day.
②While
nearly
of
the
earth
is
covered
with
water,
we
are
still
short
of
drinking
water.
2.
Master
Indefinite
Pronoun
and
Adverb
Grammar
Indefinite
Pronoun
and
Adverb
_______of
us
likes
pollution.
Don’t
spit
___________
in
public.
_________
should
care
for
wild
animals
and
plant
more
trees.
We
should
do
___________
we
can
to
protect
the
environment.
None
anywhere
Everyone
everything
Indefinite
pronoun
and
adverb
一、构成。
不定代词、副词是由some,
any,
no,
every与thing,
one
,
body,
where
等构成。
e.g.
something,
someone,
nowhere,
anybody等。
二、用法。
1．通常情况下,由some,
every加后缀构成的不定代词、
副词常用于肯定句；由any加后缀构成的不定代词、副
词常用于疑问句、否定句中。
e.g.
You
will
find
your
bag
somewhere.
Can
you
hear
anything
Grammar
2.
注意：当说话人希望得到肯定答复,或是表示建议、请求等意图时,something,
somebody,
someone也可以用于疑问句中。当要表达“任何人；任何事物”时,anything,
anybody,
anyone也可以用于肯定句中。
e.g.
Would
you
like
something
to
drink
Anybody
can
do
it
except
Tom.
Grammar
1.【2020 东营市】When
Anna
opened
her
wallet,
she
was
surprised
to
find
________.
It
was
empty.
A.
nothing
B.
anything
C.
something
D.
everything
2.【2020 甘肃武威市】There's
________
wrong
with
the
engine—it's
making
strange
noises.
A.
nothing
B.
anything
C.
everything
D.
something
3.【2020 黑龙江绥化】Did
you
do
__________
during
the
last
summer
vacation
A.
something
special
B.
special
something
C.
anything
special
A
D
C
______
a
result（结果）,
a
lot
of
rich
land
has
changed
_________
（变为）desert.
Trees
can
stop
the
wind
from
______
the
earth
_____(吹走）.
We
shouldn’t
leave
rubbish
___________
(到处).
All
these
problems
are
very
serious,_____(所以)
we
must
do
something
now.
into
blowing
away
here
and
there
so
As
Functions
water
pollution
Imagine
you
are
water.
Please
tell
us
your
functions,
problems
and
wishes.
I’m
water.
I
used
to
be
…
Factories
usually
pour
…
I
wish
human
beings
…
1a
Read
the
passage
and
put
the
following
paragraphs
in
the
correct
order.
(
)
The
sea
seems
to
have
the
best
answer.
There
is
plenty
of
water
in
the
sea.
But
we
need
to
take
the
salt
away
from
the
sea
water.
This
is
very
expensive.
If
scientists
can
find
cheaper
ways
to
do
it,
we
can
solve
the
problem
of
the
shortage
of
water.
(
)
How
can
we
avoid
a
serious
water
shortage
First,
we
should
save
water
and
not
waste
it.
Second,
we
should
protect
our
water
resources
and
not
pollute
them.
Third,
we
should
discover
ways
to
reuse
water.
Scientists
have
made
some
progress
in
this
field.
Today,
some
large
cities
are
reusing
their
water.
But
people’s
need
for
water
is
increasing
day
by
day.
We
still
don’t
have
enough
water.
What
else
can
we
do
(
)
Although
the
world
is
hungry,
it
is
even
thirstier.
While
nearly
of
the
earth
is
covered
with
water,
we
are
still
short
of
drinking
water.
This
is
because
about
97%
of
the
water
on
the
earth
is
sea
water.
So
we
can’t
use
it
for
watering
plants
or
drinking
directly.
Humans
can
only
drink
and
use
fresh
water
from
places
including
rivers,
lakes
and
underground.
1
2
3
名词
avoid
代词
动名词
v.防止，避免
e.g.
He
avoided
answering
my
questions.
不定式不可以做宾语。
1.
How
can
we
avoid
a
serious
water
shortage
我们如何避免水资源短缺呢？
Language
Points
thirsty
adj.缺水的;（口）渴的
3.Although
the
world
is
hungry,
it
is
even
thirstier
虽然世界是饥饿的，但是他更渴。
Language
Points
v.发现，找到
2….we
should
discover
ways
to
reuse
water.
我们需要找到再利用水的方法。
nearly
adv.几乎，将近
nearly
与almost
区别
：
almost
多表示时间、程度、距离、进度，
且almost
可以修饰more
than,
too,
nothing,
nobody,
nowhere,
no
one,
none,
never
等词，nearly
则不行。nearly只与not连用。
e.g.
I
have
almost
never
seen
him.
I
nearly
didn’t
hear
what
the
teacher
said
in
class.
4.While
nearly
of
the
earth
is
covered
with
water
,
we
are
still
short
of
drinking
water.
尽管地球差不多四分之三都被水覆盖，我们仍然缺少饮用水。
Language
Points
1b
Read
1a
again
and
answer
the
questions.
1.Why
is
our
world
thirsty
when
of
the
earth
is
covered
with
water
2.
What
can
we
do
now
to
avoid
the
water
shortage
Because
about
97%
of
the
water
on
the
earth
is
sea
water,
we
can’t
use
it
for
watering
plants
or
drinking
directly.
First,
we
should
save
water
and
not
waste
it.
Second,
we
should
protect
our
water
resources
and
not
pollute
them.
Third,
we
should
discover
ways
to
reuse
water.
3.What
will
be
the
best
way
to
solve
the
problem
in
the
future
in
the
passage
4.Do
you
know
any
other
ways
to
solve
the
problem
What
is
it
To
find
cheaper
ways
of
taking
the
salt
away
from
the
sea
water.
2
Discuss
in
groups
different
ways
of
protecting
and
saving
water.
Write
down
the
key
information.
Example:
Pass
laws(
n.法律)
against
water
pollution.
Collect
and
reuse
waste
water.
…
…
3.
Write
a
proposal
about
saving
water
to
all
the
students
in
your
school.
My
dear
friends,
Water
is
very
important
to
human
beings.
Let’s
do
something
to
protect
and
save
it.
First,
________
.
Second,_________.
Third,
_________.
Let’s
try
our
best
to
save
water
and
our
planet.
My
dear
friends,
Water
is
very
important
to
human
beings.
Let’s
do
something
to
protect
and
save
it.
First,
we
should
protect
our
water
resources
and
not
pollute
them.
The
government
should
also
pass
laws
against
the
water
pollution.
Second,
we
should
save
water
in
our
daily
life,
turn
off
the
taps
in
time,
take
a
shower
instead
of
a
bath,
and
always
remember
to
collect
and
reuse
water.
Third,
let’s
try
to
spread
the
message
about
protecting
and
saving
water.
Make
more
people
around
us
know
the
problem
of
water
shortage
and
how
to
help
solve
it.
Let’s
try
our
best
to
save
water
and
our
planet.
Student
Union
You
can
write
it
like
this.
If
we
want
to
use
the
sea
water,
we
must
______
___(拿走）
the
salt
from
the
sea
water.
How
can
we
_________(避免)
a
serious
water
shortage
We
should
__________(找到)
ways
to
reuse
water.
People’s
need
for
water
is
increasing
____________(一天天).
Although
the
world
is
hungry,
it
is
even
______(更渴的)
While
___________(几乎，差不多)
of
the
earth
is
covered
with
water,
we
are
still
short
of
drinking
water.
take
away
avoid
discover
day
by
day
thirstier
nearly
Exercises
Homework
Memorize
the
useful
expressions
and
key
sentences
which
we
learn
today.
2.
Preview
Unit
2
Topic
3-Section
A.
Bye-bye!(共20张PPT)
Unit
2
Saving
the
Earth
Topic
2
All
these
problems
are
very
serious.
Section
A
Language
goals
By
the
end
of
the
class,
you
will
be
able
to
1.Master
the
following
words
,phrases
and
sentences:
Words：
sand,
although
Phrases:
change
into,
human
being
Sentences：①As
a
result,
a
lot
of
rich
land
has
changed
into
desert.
②Trees
can
stop
the
wind
from
blowing
the
earth
away.
2.
Know
how
sandstorms
come
into
being.
Lead
in
It’s
a
kind
of
storm
caused
by
sand.
rainstorm
What
kind
of
weather
is
it
sandstorm
snowstorm
3
Do
you
know
how
sandstorms
come
into
being
Number
the
pictures
and
talk
about
the
sandstorm
in
groups.
(
)
(
)
(
)
(
)
(
)
(
)
4
1
5
3
6
2
wash
the
earth
away
many
trees
change
into
desert
forests
gone
sandstorms
come
into
being
cut
down
trees
many
trees
cut
down
Long
ago,
there
were
lots
of
trees
and
forests.
But
people
needed
some
wood
to
build
houses
and
do
other
things,
so
they
cut
down
the
trees
day
by
day.
forests
gone
wash
the
earth
away
Forests
have
gone.
change
into
desert
转换成，变成
沙漠
e.g.
A
lot
of
rich
land
has
changed
into
desert
because
people
have
cut
down
too
many
trees.
sandstorms
come
into
being
The
boy
and
girls
are
talking
about
___________.
different
types
of
sandstorms
the
reasons
for
sandstorms
sandstorms
in
different
cities
1b
Listen
to
1a
and
choose
the
best
answer.
B
Listen
and
answer
the
questions
1.What’s
the
weather
like
today
It’s
bad.
The
wind
is
so
strong
.
And
the
sand
really
hurts
face.
2.What
causes
these
sandstorms
People
have
cut
down
too
many
trees.
As
a
result,
a
lot
of
rich
land
has
changed
into
desert.
3.Do
we
still
need
to
do
something
to
protect
the
environment
Yes,
we
do.
Although
we
have
built
“The
Green
Great
Wall”,
we
still
need
to
do
something
to
protect
the
environment
.
somebody,
someone,
something,
somewhere
anybody,
anyone,
anything,
anywhere
none,
nobody,
nothing,
nowhere
everybody,
everyone,
everything,
everywhere
一般情况下用于肯定句
一般情况下用于否定句和疑问句
表否定含义
可用于各种句式
the
indefinite
pronoun
and
adverb
1.I
have
____
to
tell
you.
A.
important
something
B.
something
important
B
形容词修饰不定代词和不定副词时，要放在不定代词/不定副词之后
Do
you
know
2.Everybody
___
ready
for
the
match.
A.
is
B.
are
A
不定代词作主语时，谓语动词要用单数。
1c
Read
1a
and
complete
trees’
functions.
Trees
can
stop
the
wind
from
blowing
the
earth
away.
A
lot
of
water
can
be
saved
by
forests.
They
can
also
stop
the
water
from
washing
the
earth
away.
Tree’s
functions
K:
wind;
sand;
anything
M:
sandstorms
J:
cut
down;
as
a
result;
change
into
M:
affect
J:
stop…from…;
blow…
away
K:
can
be
saved
J:
wash
…
away
K:
is
harmful
to;
although;
do
something
Act
out
the
dialog
in
pairs
2
Complete
the
sentences
with
the
correct
forms
of
the
given
phrases
in
the
box.
as
a
result,
change
into,
do
something,
stop…from,
blow…away
1.People
have
cut
down
such
a
large
number
of
trees
that
the
land
________________desert.
2.There
are
fewer
trees
left,
so
the
wind
always
_______the
earth
________.
3.Air
pollution
has
become
a
serious
problem,
so
we
must______________
to
reduce
it.
4.we
should
try
our
best
to
_________
people
________
cutting
down
the
trees.
5.In
the
future,
human
beings
can
protect
the
trees
well.
_____________,
animals
will
live
a
happy
life
in
the
forest.
has
changed
into
blows
away
do
something
stop
from
As
a
result
4
A.
Listen
to
the
passage
and
circle
the
phrases
you
hear.
become
weaker
destroy
the
environment
disappear
rapidly
on
the
earth
enough
bamboo
to
eat
4
B.
Listen
again
and
fill
in
the
blanks.
1.
Now
some
kinds
of
animals
are
becoming
______
______
_______.
2.
Some
animals
are_____
______
____dying
out
completely.
3.
In
the
past,
pandas
lived
a
quiet
life
and
had
________
______food.
4.
Humans
have
_____
_____
__________
the
importance
of
protecting
animals.
5.
We
should
______
______
____to
protect
them.
do
our
best
in
danger
of
plenty
of
come
to
understand
fewer
and
fewer
Lily,
would
you
like
___________
to
drink
Cindy
is
very
busy
now.
She
needs
_______
to
help
her.
Is
there
_________
wrong
with
your
computer
Jim
looked
for
his
pencil-box
____________
,
but
he
didn’t
find
it.
I
stayed
at
home
last
week.
I
didn’t
go
__________.
Use
someone,
something,
anything,
somewhere,
anywhere
to
fill
in
the
blanks.
something
someone
anything
somewhere
anywhere
Exercises
Homework
Memorize
the
useful
expressions
and
key
sentences
which
we
learn
today.
2.
Preview
Unit
2
Topic
2-Section
B.
Bye-bye!(共25张PPT)
Unit
2
Saving
the
Earth
Topic
2
All
these
problems
are
very
serious
Section
C
Language
goals
By
the
end
of
the
class,
you
will
be
able
to
1.Master
the
following
words
,phrases
and
sentences:
Words：
hole,
form,
rise
Phrases:
take
away
,
refer
to
Sentences：All
these
problems
are
very
serious,
so
we
must
do
something
now.
2.
Understand
the
Ozone
layer
(1)________
of
us
knows
how
to
stop
the
bad
behavior.
(2)
I
knocked
on
the
door
but
___________
answered.
(3)
Some
of
these
books
are
better
than__________.
(4)
She
was
driving
the
car
with
one
hand
and
wiping
the
window
with
the
_______.
(5)
They
are
beautiful
but
I
am
looking
for
___________
useful.
(6)
Is
there
___________
you
can
do
to
help
her
(7)
There’re
5
000
people
living
here
and
almost
_________has
his/her
own
car.
(8)
He’s
cleverer
than
____________
I
know.
(9)
I’ve
looked
__________
but
I
can’t
find
it.
Fill
in
the
blanks
using
something,
anything,
others,
nobody,
everyone,
anybody,
everywhere,
none,
other.
None
nobody
others
other
something
anything
everyone
anybody
everywhere
Revision
What
can
we
do
to
protect
our
environment
Give
a
speech
In
our
daily
life,
we
should
face
more
environmental
problems.
Can
you
say
something
about
them
cities,
pollute,
health
problems
factories,
the
land
and
the
air,
dead
In
our
daily
life,
we
should
face
more
environmental
problems.
Can
you
say
something
about
them
cut
down,
millions
of,
take
away
the
earth,
become
desert
Watch
the
video
and
discuss
what
you
have
learnt
from
it.
Watch
the
video
and
discuss
what
you
have
learnt
from
it.
1.Is
ozone
layer
important
or
unimportant
It's
very
important.
2.
Can
the
ozone
layer
protect
us
Yes.
3.What
happened
to
it
now
There
is
a
big
hole
in
the
ozone
layer.
4.What's
the
effect
of
it
It's
harmful
to
all
the
living
things,especially
to
humans
for
it
does
harmto
our
eyes
and
skin.
臭氧层
Ozone
is
a
special
kind
of
oxygen.
It
can
protect
the
earth.
氧气
In
our
daily
life,
we
should
face
more
environmental
problems.
Can
you
say
something
about
them
oxygen
a
special
kind
of
oxygen
called
“ozone”
(O3)
a
very
big
hole
in
the
ozone
layer,
too
much
harmful
radiation
from
the
sun
放射，放射物
In
our
daily
life,
we
should
face
more
environmental
problems.
Can
you
say
something
about
them
CO2
carbon
dioxide
increase
a
lot,
form
a
“blanket”,
the
heat
from
the
sun
can’t
escape.
二氧化碳
渗出；逃跑；逃脱
毛毯，毯子
cause
the
level
of
the
sea
to
rise
called
“the
greenhouse
effect”
or
“global
warming”
温室效应
global
warming
fewer
trees
factory
pollution
traffic
pollution
the
ozone
layer
more
carbon
dioxide
Can
you
match
them
1a
Read
and
understand.
Look
at
the
following
pictures
and
predict
the
main
idea
of
the
passage.
Choose
suitable
titles
for
Paragraphs
2-6.
Then
write
it
down
in
front
of
each
paragraph.
The
earth
is
4.6
billion
years
old.
We
humans
have
lived
on
the
earth
for
only
35
000
years,
but
during
this
period,
we
have
changed
our
planet
a
lot
in
many
ways.
Some
things
we’ve
done
are
very
good
for
the
earth
while
some
are
bad.
_________
All
over
the
world,
people
have
cut
down
millions
of
trees.
When
it
rains
or
when
the
wind
blows,
the
earth
is
taken
away.
Forests
have
become
deserts,
so
many
kinds
of
animals
and
plants
are
disappearing.
Fewer
Trees
A.
Traffic
pollution
B.
Factory
pollution
C.
Fewer
trees
D.
The
ozone
hole
E.
More
carbon
dioxide
____________
In
big
cities,
cars
and
buses
have
polluted
the
air.
Now
many
people
in
cities
have
health
problems.
_____________Factories
have
also
polluted
the
land
and
the
water.
As
a
result,
many
rivers
and
lakes
are
now
dead.
_____________
Around
the
earth,
there’s
a
special
kind
of
oxygen
called
“ozone”(O3).
It
is
important
to
the
earth.
But
now
air
pollution
is
destroying
it
and
making
a
very
big
hole
in
the
ozone
layer.
Too
much
harmful
radiation
from
the
sun
passes
through
the
hole
and
reaches
the
earth
directly.
This
is
very
dangerous
because
this
kind
of
radiation
can
cause
cancer.
Traffic
Pollution
Factory
Pollution
The
Ozone
Layer
直接地
________________
Carbon
dioxide
(CO2)
in
the
air
has
increased
a
lot.
It
mainly
comes
from
burning
oil,
coal
and
wood.
This
has
formed
a
blanket
around
the
earth.
The
heat
from
the
sun
can’t
escape
so
the
temperature
is
rising.
This
is
called
“the
greenhouse
effect”.
It
causes
the
level
of
the
oceans
to
rise
and
the
climate
of
the
earth
to
change.
All
these
problems
are
very
serious,
so
we
must
do
something
now.
More
Carbon
Dioxide
1b
Read
1a
and
complete
the
following
tasks.
2.What
does
our
planet
mean
here
A.
The
sun.
B.
Mars.
C.
The
moon.
D.
The
earth.
3.In
the
passage,
blanket
refers
to
____.
A.
carbon
dioxide
around
the
earth
B.
the
ozone
layer
in
the
sky
C.
the
forests
around
the
world
D.
pollution
all
over
the
world
D
A
1b
Read
1a
and
complete
the
following
tasks.
4.The
word
it
in
Paragraph5
refers
to
____.
A.
CO2
B.
O3
C.
O2
D.
H2O
5.
What
is
the
best
title
for
this
passage
A.
Environment
Problems
B.
Pollution
on
the
Earth
C.
Hope
for
the
Future
D.
The
Greenhouse
Effect
B
A
1c
Complete
the
notes
according
to
1a.
Problem
Effect
on
the
environment
fewer
trees
forests
become
deserts,
animals
and
plants
disappear
traffic
pollution
greenhouse
effect,
level
of
oceans
rising,
climate
change
cars
and
buses
pollute
air,
health
problems
pollute
land
and
water,
rivers
and
lakes
dead
harmful
radiation
reaches
the
earth,
cause
cancer
factory
pollution
ozone
hole
more
CO2
2
Surf
the
Internet
to
collect
more
information
about
environmental
problems
and
effects.
Then
discuss
the
information
in
groups
and
take
notes.
3.
Combine
the
key
points
in
1c
and
2
to
form
a
short
passage
and
pay
attention
to
the
proper
linking
words.
As
we
all
know,
water
pollution
is
becoming
more
and
more
serious.
Some
factories
pour
waste
water
into
the
rivers.
As
a
result,
it
makes
the
water
dirty
and
smell
terrible.
Most
of
fish
in
the
water
have
died
and
we
can’t
swim
in
the
water.
Water
is
very
important
to
human
beings,
so
we
should
do
our
best
to
protect
and
save
it.
Luckily,
our
government
is
taking
measures
to
protect
the
water
from
pollution.
You
can
write
it
like
this:
Homework
1.
Memorize
the
useful
expressions
and
key
words
which
we
learn
today.
2.
Preview
Unit
2
Topic
2-Section
D.
Bye-bye!
