(共25张PPT)
Topic
3
What
can
we
do
at
home
to
protect
the
environment
Section
A
Unit
2
Saving
the
Earth
Language
goals
By
the
end
of
the
class,
you
will
be
able
to
1.Master
the
following
words
,phrases
and
sentences:
Words：
nod,
agreement
Phrases:
give
up
Sentences：①We
should
reduce
the
waste
we
produce.
②Recycling
can
protect
the
environment,
and
it
can
save
money,
too.
2.
Use
the
compound
sentences
with
or,
and,
but
and
while.
Do
you
know
how
these
kinds
of
pollution
affect
our
environment
What
should
we
do
to
improve
our
environment
What
do
they
mean
Are
you
a
greener
person
Which
day
is
the
World
Environment
Day
World
Environment
Day
(WED)
occurs
on
the
5th
of
June
every
year,
and
is
the
United
Nation's
principal
vehicle
for
encouraging
awareness
and
action
for
the
protection
of
our
environment.
First
held
in
1974,
it
has
been
a
flagship
campaign
for
raising
awareness
on
emerging
environmental
issues
from
marine
pollution,
human
overpopulation,
and
global
warming,
to
sustainable
consumption
and
wildlife
crime.
WED
has
grown
to
become
a
global
platform
for
public
outreach,
with
participation
from
over
143
countries
annually.
Each
year,
WED
has
a
new
theme
that
major
corporations,
NGOs,
communities,
governments
and
celebrities
worldwide
adopt
to
advocate
environmental
causes.
Can
you
sort
the
garbage
What
can
we
do
at
home
to
protect
the
environment
We
should
reduce
the
waste
we
produce.
For
example,
we
should
use
both
sides
of
paper
and
reuse
plastic
bags.
Think
about
it
Listen
to
1a
again
and
answer
the
questions.
(1)
Who
is
working
for
an
organization
that
protects
the
environment
Jane.
(2)
What’s
her
main
job
Her
main
job
is
to
help
spread
the
message
about
protecting
the
environment.
(3)
Should
we
use
both
sides
of
paper
Yes,
we
should.
(4)
Why
is
the
recycling
useful
It
can
protect
the
environment,
and
it
can
save
money,
too.
1b
Listen
to
1a
and
complete
the
table.
An
interview
with
Jane
where
Jane
works
in
an
________________
to
______________________
what
Jane
is
doing
helping
________________
about
protecting
the
environment
what
we
can
do
at
home
________________
we
produce
what
students
can
do
at
school
collect
__________
and
soft
drink
cans
organization
protect
the
environment
spread
the
message
reduce
the
waste
waste
paper
就某事采访某人
减少废弃物
使用纸的两面
重复使用塑料袋
省钱
鼓励某人做某事
把它们分类
为……工作
散发信息
饮料罐
被回收
interview
sb.
about
sth.
reduce
waste
use
both
sides
of
paper
reuse
plastic
bags
save
money
encourage
sb.
to
do
sth.
sort
them
work
for
spread
message
soft
drink
cans
be
recycled
Language
points
2.
We
all
know
that
you
work
for
an
organization…
Language
points
为……工作，为……坚持不懈地努力
3.
It
will
save
energe
and
reduce
air
pollution.
并列句
并列连词
并列句是由并列连词把两个或两个以上的简单句连在一起构成的句子，连词前可用逗号，也可不用逗号。常用的连词有：
and：表示并列
but,
while：表示转折
or,
either…or…：表示选择
so,
for：表示因果
1c
Read
1a
and
complete
the
sentences.
The
three
R’s
---______,
______
and
_______
---
are
important.
At
home,
we
can,
for
example,
use
both
______
of
paper
and
reuse
_____
bags.
At
school,
students
are
encouraged
to
_____
waste
paper
and
______________
because
recycling
can
protect
the
____________
and
_______
money.
Then
we
_______
them
______
they
can
be
recycled.
reduce
reuse
recycle
sides
plastic
collect
soft
drink
cans
environment
save
sort
so
that
(1)
We
should
use
plastic
bags
as
few
as
possible.
(2)
We
should
throw
the
garbage
in
the
river.
(3)
We
should
reduce
the
waste
we
produce.
(4)
We
should
use
both
sides
of
paper.
(5)
We
should
throw
the
plastic
bags
rather
than
reuse
them.
You
can
nod
or
shake
the
head!
Nodding
the
head
means
agreement.
Shaking
the
head
means
disagreement.
(1)
You
nod
your
head
and
it
means
agreement.
(2)
Hurry
up,
or
you’ll
miss
the
train.
(3)
Water
is
important
but
some
people
don’t
save
it.
(4)
Some
people
protect
animals
while
others
kill
animals.
Discuss
the
words
underlined
并
列
句
连词
or,
and,
but
和
while的用法
①表示并列关系，用and…
②表转折，用but,
while…
③表选择，用or…
2
Combine
the
sentences
with
or,
and,
but
or
while,
making
some
changes
if
necessary.
1.
Noise
is
a
kind
of
pollution.
It’s
harmful
to
our
hearing.
Noise
is
a
kind
of
pollution
and
it’s
harmful
to
our
hearing.
2.
Work
hard.
You
will
fail
the
exam.
Work
hard,
or
you
will
fail
the
exam.
3.
Nodding
the
head
means
agreement.
Shaking
the
head
means
disagreement.
Nodding
the
head
means
agreement
while/but
shaking
the
head
means
disagreement.
2
Combine
the
sentences
with
or,
and,
but
or
while,
making
some
changes
if
necessary.
4.
Hurry
up.
You
will
miss
the
bus.
Hurry
up,
or
you
will
miss
the
bus.
5.
He
has
failed
several
times
.
He
never
gives
up.
He
has
failed
several
times,
but
he
never
gives
up.
放弃
3a
Read
the
table
and
write
the
correct
letter
under
each
picture.
Then
sort
the
garbage
based
on
your
own
knowledge.
paper
cups
glass
bottles
cans
plastic
bags
newspapers
3b
Listen
to
the
conversation
and
check
your
answers
in
3a.
Type
of
garbage
Recycled
Reused
Reduced
a.
plastic
bags
√
b.
paper
cups
c.
cans
d.
newspapers
e.
glass
bottles
√
√
√
√
Wow!
We’ve
got
so
much
garbage!
Soft
drink
cans,
lunch
boxes,
plastic
bottles,
batteries,
waste
paper,
paper
bags
and
cups,…
Suppose
you
will
have
a
Clean-up
Day.
Work
in
groups
and
find
out
the
garbage.
Then
sort
them
based
on
3a
and
talk
about
them.
A:
I
think
lunch
boxes
should
be
reused.
B:
What
about
waste
paper
A:
I
think…
单选。
1.
－Could
you
give
me
a
glass
of
water
－
.
A.
It's
a
pleasure.
B.
My
pleasure.
C.
With
pleasure.
D.
A
pleasure.
2.
－Never
!
I
believe
you
can
make
it.
－Thank
you.
I
will.
A.
hurry
up
B.
run
out
C.
shut
off
D.
give
up
3.
He
is
tall,
his
sister
is
short.
A.
when
B.
or
C.
while
D.
and
C
D
C
Exercises
4.
Take
more
exercise,
you
will
be
healthier.
A.
but
B.
for
C.
and
D.
so
5.
We
should
try
our
best
the
waste
we
produce
quickly.
A.
reducing
B.
to
reduce
C.
reduced
D.
to
reduced
C
B
Exercises
Homework
1.
Memorize
the
useful
expressions
and
key
sentences
which
we
learn
today.
2.
Preview
Unit
2
Topic
3-Section
B.
Bye-bye!(共21张PPT)
Topic
3
What
can
we
do
at
home
to
protect
the
environment
Section
B
Unit
2
Saving
the
Earth
Language
goals
By
the
end
of
the
class,
you
will
be
able
to
1.Master
the
following
words
,phrases
and
sentences:
Words：
action,
distance,
electricity
Phrases:
ought
to,
shut
off,
after
all
Sentences：①Would
you
like
to
be
a
greener
person
②First,
you
ought
to
turn
off
the
lights
when
you
leave
a
room.
③Easier
said
than
done.
⑤Well,
actions
speak
louder
than
words.
2.
Talk
about
the
greener
life
style.
Say
a
sentence
with
and,
or,
but
&
while
like
this
one
by
one.
A
:
I
like
English
and
I’m
good
at
it.
B:
I
am
good
at
English
while
my
good
friend
is
good
at
history.
C:
My
good
friend
is
good
at
history
but
…
Let’s
play
a
game
We
won't
have
a
society
if
we
destroy
the
environment.
－Margaret
Mead,
American
anthropologist
Only
to
obey
nature
in
order
to
overcome
nature.
－Charles
Darwin,
English
naturalist
If
we
destroy
the
environment
and
disobey
the
nature,
what
will
happen
to
us
Lead
in
reuse
reduce
recycle
others
How
do
you
sort
the
garbage
you’ve
collected
on
your
own
Clean-up
Day.
plastic
bottles...
paper
bags
and
cups...
lunch
boxes
soft
drink
cans,
plastic
bottles,
waste
paper,
glass,
paper
bags
and
cups
...
batteries
...
What
should
you
do
if
you
would
like
to
be
a
greener
person
You
should
sort
the
garbage.
=You
ought
to
sort
the
garbage.
ought
to
应该
情态动词
ought
to
+动词原形
ought
not
to
+
动词原形
Language
Points
You
should
/ought
to
…
shut
off
the
electricity
n.电，电能
关闭
e.g.
You
should
/
ought
to
shut
off
the
electricity
when
you
leave
a
room.
You
should/ought
to
ride
a
bike
to
your
school.
You
should/ought
to
take
a
bus
to
school
instead
of
taking
a
taxi.
You
should/ought
to
take
a
cloth
bag
when
you
go
shopping.
1b
Listen
to
1a
and
choose
the
correct
answers.
1.Jane
and
Michael
are
mainly
talking
about
_______.
why
we
should
shut
off
the
electricity
when
we
leave
what
we
should
use
when
we
go
shopping
how
to
be
a
greener
person
2.
Actions
speak
louder
than
words
means
____.
words
are
not
as
loud
as
actions
to
do
well
is
better
than
to
say
well
actions
can
speak,
but
words
can’t
do
it
C
B
Actions
speak
louder
than
words.
Remember
some
English
idioms
and
try
to
use
them
often.
Easier
said
than
done.
说起来容易做起来难。
行动胜于言辞。
1c
Read
1a
and
complete
the
table.
To
be
a
greener
person
1._______________________________when
you
leave
the
room.
2.
If
you
travel
a
short
__________,
you
shouldn’t
_________________
,
but
________________.
So
this
helps
to
___________
and
____________.
3.
When
you
go
shopping,
you’d
better
_____________
instead
of
using
_____________.
You
ought
to
shut
off
the
electricity
distance
take
a
bus
or
a
taxi
walk
or
ride
a
bike
save
energy
reduce
air
pollution
take
a
cloth
bag
plastic
bags
Retell
it
Retell
1a
like
this:
I
would
like
to
be
a
greener
person.
First
I
ought
to
shut
off
the
electricity
when
I
leave
a
room.
Second,
I’d
better
walk
or
ride
a
bike
instead
of
taking
a
bus
or
a
taxi
if
I
travel
a
short
distance.
I
will
save
energy
and
reduce
air
pollution.
Third,
I
will
take
a
cloth
bag
when
I
go
shopping.
I
won’t
use
plastic
bags.
It’s
easy
to
be
a
greener
person.
How
can
we
become
a
greener
person
2
Choose
the
correct
verbs
or
phrases
to
complete
the
statements.
Then
match
them
with
the
right
pictures.
shut
off
reduce
grow
recycle
ride
cover
use
______
waste.
Don’t
buy
cups
or
boxes
which
can
be
used
only
once.
Save
electricity.
________
the
electricity
when
you
are
not
using
it.
________
boxes
and
plastic
bottles.
________
fruit
and
vegetables
yourself.
Try
to
________
a
bike
when
you
travel.
_________
both
sides
of
the
paper.
__________
pans
when
you
are
cooking.
Reduce
Shut
off
Recycle
Grow
ride
Use
Cover
2
Match
them
with
the
right
pictures.
①Reduce
waste.
Don’t
buy
cups
or
boxes
which
can
be
used
only
once.
②Save
electricity.
Shut
off
the
lights
when
you
are
not
using
them.
③Recycle
boxes
and
plastic
bottles.
④Grow
fruit
and
vegetables
yourself.
⑤Try
to
ride
a
bike
when
you
travel.
⑥Use
both
sides
of
the
paper.
⑦Cover
pans
when
you
are
cooking.
3
Read
the
passage
and
fill
in
the
blanks
with
the
correct
words.
Then
listen
and
check.
The
first
letter
of
each
word
is
given.
The
earth
is
our
home.
Some
things
we
have
done
are
good
for
the
earth
w_____
some
are
bad.
We
have
polluted
the
earth,
a______
it
is
sick
now.
We
c_____
down
too
many
trees,
so
lots
of
rich
land
has
c_______
into
desert.
Factories
p____
waste
water
into
rivers.
Pollution
has
caused
many
s_____
problems.
The
earth
is
crying
for
help.
What
shall
we
do
to
save
it
We
should
plant
more
trees,
r_________
the
waste
we
produce,
r_________
the
waste
paper
and
soft
drink
cans,
and
ride
bikes
to
reduce
air
pollution.
I
think
we
should
try
to
be
g_________
people
to
protect
our
earth.
After
all,
we
have
only
one
earth.
We
should
do
e_________
to
protect
it,
or
we’ll
be
punished
and
lose
our
home.
hile
nd
ut
hanged
our
erious
educe
ecycle
reener
verything
毕竟，归根结底
4
Work
in
groups
and
survey
your
group
members
about
what
they
do
to
be
greener
people.
Then
report
it
to
your
class.
Pay
attention
to
the
stress,
liaison,
incomplete
plosion
and
intonation.
You
______
______(应该)
throw
the
rubbish
into
the
garbage.
You
should
______
______(关闭)the
electricity
when
you
leave
a
room.
You’d
better
walk
or
ride
a
bike
______
_____
(代替)
taking
a
bus
or
a
taxi
if
you
travel
a
short
distance.
It’s
so
______(容易)
to
be
a
greener
person.
_______
_____
_____
_____
________.
(行动胜于言辞)
ought
to
shut
off
instead
of
easy
Actions
speak
louder
than
words
Exercises
二、单选。
1.
It's
easy
everyone
to
protect
the
environment.
A.
for
B.
of
C.
to
D.
that
2.
Please
remember
to
the
tap
after
using
the
water.
A.
turn
off
B.
close
C.
shut
off
D.
turn
down
3.
A
country
have
a
dream.
We
teenagers
also
have
dreams.
A.
ought
to
B.
may
C.
can
D.
have
to
4.
Get
up
early,
you'll
be
late
for
school.
A.
so
B.
and
C.
or
D.
but
5.
After
the
hard
work,
what
we
want
is
a
rest.
A.
have
B.
has
C.
had
D.
to
have
A
Exercises
C
A
C
D
Homework
1.
Memorize
the
useful
expressions
and
key
sentences
which
we
learn
today.
2.
Preview
Unit
2
Topic
3-Section
C.
Bye-bye!
