S
S
A
A
V
V
E
E
T
T
H
H
E
E
W
W
O
O
R
R
L
L
D
D
Look at the pictures,read the
sentences and fill in the
blanks with "should" or
"shouldn't"
We ____ use
public
transportation
more.
We ____ cut
down the
trees.We ____
save them.
We ____ use
environment
friendly
deodorants.
We ____ love
animals.They are
our real friends.
We ____ use coal
in houses.It
pollutes air very
much.
We ____ use
filters in
factories.We ____
pollute the air.
We ____ turn off
electric devices
when we don't
use them.
We ____ hunt
animals.We ____
save them.They
are our friends.
We ____ use our
private cars.
Because they
pollute air much.
We ____ pour
chemicals into
our sinks. They
pollute water.
We ____ use solar
energy more.It's
clean and
harmless.
We ____ waste
paper to save our
trees.We ____
recycle them.
We ____ use
environment
friendly
detergents.
We ____ turn off
the tap when we
don't use it.We
____ save water.
We ____ use
animals in our
experiments.We
____ harm them.
We ____ pour
factory wastes
into water
resources.
We ____ use
electric
cars.Because
they are clean.
We ____ plant
more trees.We
need them to
breathe.
We ____ turn off
the lights when
we don't need
them.
We ____ throw
away rubbish.
They pollute
environment.
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