-
Section A
UNIT 13
We
’
re trying to
save the earth!
1c Role-play the
conversation. Th en make your own conversations
about the kinds of pollution in
1a.
Mark: Th e river was dirty. Even the bott om of
the river was full of rubbish. Tony: But it used
to be so clean! Mark: Yes, but people
are litt ering in the river. Tony: Everyone in
this town should
play a part in
cleaning it up!
Listen and complete the
sentences.1b
1c Role-play the
conversation. Th en make your own conversations
about
What was the problem?
Th e river was . Even the bott om of the river was
full of . Th ere was no
more
for fi shermen to catch.
What caused the problem? People are
in the river. Factories are
into the river. How should the problem
be solved? We should write to the
and ask them to
the
factories. Everyone
should
the river.
1a Here are some words related to
di
?
erent kinds
of pollution. Write them in the box below. Th
en
add
more
words.
loud
music
cars
rubbish
planes
litt
ering
ships
factories
smoking
building
houses mobile phones
noise
pollution air pollution water pollution
98
UNIT 13
Listen
to the interview. Circle the kinds of pollution
that Jason and Susan talk about.
2a
A. waste pollution B. air pollution C.
noise pollution D. water pollution
Listen again and complete the
sentences.2b 1. Th e 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. 3. Th ere is
also
too much rubbish and waste. People
things away every day. 4. People are
also
in public
places like parks. Th is turns
beautiful parks into ugly places.
2c
Use the information in 2a and 2b to role-play
conversations between Jason and Susan. Jason:
Th e air has become really polluted
around here. I
’
m really gett
ing worried. Susan: Yes, I used to
be
able to see stars in the sky. Jason: Th e 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.
Other advantages of bike riding are that
it
’
s good for health
and it doesn
’
t
cost anything! 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. Susan: And
remember to throw rubbish in the cans and keep
public places
clean and beautiful for
everyone. Interviewer: So together, our actions
can make a
di
?
erence
and lead to a bett er
future!
99
We
’
re trying to
save the earth!
Page PB
UNIT
13
3a Discuss the questions with a
partner.
1. Have you ever seen a shark?
2. What do you know about sharks?
3b
Read the passage. Complete the fact sheet below.
Many have heard of
shark
’
s fi n soup. Th is
famous and expensive dish is especially popular in
southern China. But do you realize that
you
’
re killing a whole shark
each time you enjoy a bowl
of
shark
’
s fi n soup? When
people catch sharks, they cut
o
?
their fi ns and throw the shark
back into the ocean. Without a fi n, a
shark can no longer swim and slowly dies. Th is
method is
not only cruel, but also
harmful to the environment. Sharks are at the top
of the food chain in the
ocean
’
s
ecosystem. If their numbers drop too low, it will
bring danger to all ocean life. Many
believe that sharks can never be
endangered because they are the strongest in their
food chain. But
in fact, around 70
million sharks are caught and traded in this
industry every year. Th e numbers of
some
kinds
of
sharks
have
fallen
by
over
90
percent
in
the
last
20
to
30
years.
Environmental
protection
groups around the world, such as WildAid and the
WWF, are teaching the public about
“
fi
nning
”
. Th ey have even
asked governments to develop laws to stop the sale
of shark
’
s fi ns.
So far, no scientifi c studies have
shown that shark
’
s fi ns are
good for health, so why eat them?
Help
save
the
sharks!
and
slowly
dies.
Th
is
method
is
not
only
cruel,
but
also
harmful
to
the
Where shark
’
s
?
n soup is
popular Number of sharks caught and traded every
year How much
the
numbers
of
some
kinds
of
sharks
have
fallen
in
the
last
20
to
30
years
Two
environmental
groups which
are against
?
nning
3c
Read
the
passage
and
fi
ll
in
the
blanks
with
the
words
in
the
box.
1.
Many
people
do
not
realize they are killing
a whole shark
they enjoy a
bowl of shark
’
s fi n soup.
2. Sharks are at the
top of the food
chain,
if their numbers
drop, the ocean
’
s ecosystem
will be in danger. 3. Many
think that
sharks are too strong to be endangered,
they are wrong. 4.
there are no scientifi c
studies to support this, a lot of
people believe that shark
’
s
fi ns are good for health. 5. Sharks may
disappear one day
we do not do something to stop the sale
of shark
’
s fi ns. they enjoy
a bowl of
shark
’
s
fi n soup. 2. Sharks are at the top of the food
chain, drop, the ocean
’
s
ecosystem will be in
danger. 3. Many
think that sharks are too strong to be endangered,
are wrong. 4. people believe
that
shark
’
s fi ns are good for
health. 5. Sharks may disappear one day so
although if but when
100
UNIT 13 Grammar Focus
We
’
re trying to save the
earth. Present progressive The river used to be
so
clean.
used
to
It
was
considered
the
nicest
river
in
town.
Passive
voice
The
air
has
become
really
polluted. Present perfect We should help save the
sharks. Modal verbs
4c In your group,
make a list of things that people can do to help
the
environment and present
them. Th e class can agree or disagree
with you.
A: We think that everyone
should use public transportation. B: We disagree.
It
’
s
di
?
cult for
parents with young
children to use public transportation ...
use public transportation
Interviewer:
you
ever
(take) part in an
environmental project? Ken: Yes, I have. I
(help) with
a
Clean-Up Day last year. It was
(consider) the biggest clean-up project
this city
ever
(have).
Interviewer: How
many people
(take) part?
Ken: I
(think) more than
1,000 people
(come) to
help
out.
Interviewer:
Th
at
’
s
fantastic!
I
guess
everyone
in
this
city
is
(try)
to
improve
the
environment.
Ken: Yes,
everyone should
(play) a
part in keeping the city clean.
4a Fill
in the
blanks with the correct forms of
the verbs in brackets. 4b Fill in the blanks with
the appropriate
modal verbs from the
box.
can would could have to should
must may/might
When it comes to saving
the earth, people
think
that big things
be done.
However, many forget