Lop 9 Unit 6 Speak

How ?
What?
W
h
y

?
What should we do to protect the environment ?
Why should we do these things?
How can we do them?

I think we should+ V
Won’t you+ V ?
It would better if you+ V
Why don’t you+ V ?
Why not+ V ?
What/ How about+ Ving ?
Now you make new sentences.

reuse and
recycle
bottles and
cans
not throw
trash onto
the water

go to school by
bike
put garbage
bins around
the
schoolyard
use public buses
instead of
motorbikes
I think we should
It would be better if
you
Why don’t you ?
Won’t you ?
Why not ?
What/ How about ?

Task 2:
Work in pairs. Make a
dialogue about why we
should do those things.
For example :

Use banana leaves to wrap food/
( plastic bags are very hard to
dissolve/ save paper)
A: I think it would be better if we use banana
leaves to wrap food.
B : Why?
A: Because plastic bags are very hard to dissolve.

By doing this , we can save paper.

- Not throw trash onto the water /
keep the water clean / polluted
water can directly do harm to
people’s health and kill fish.
A: I think we should
B : Why?
A: By doing this ,we can


A: I think we should not throw trash onto the water.
B : Why?
A: By doing this ,we can keep the water clean. Polluted
water can directly do harm to people’s health and kill
fish.

- Reuse and recycle bottles and cans.( reduce
garbage/ save natural resources)
- Go to school or go to work by bike. ( save energy/
keep the air clean)
-Put garbage bins around the school yard. (prevent
lazy students from throwing trash / keep the
schoolyard clean)
-Use public buses instead of motorbikes. ( avoid
traffic jams / reduce exhaust fume/ save energy)
I think we should / It would better if you
Why? / How come?
Because we can / By doing this, we can / If you
do this, we can

Task 3: Work in groups. Discuss the
questionnaire:
How can we
•
save paper ?
•
use fewer plastic bags?
•
reduce water pollution?
•
prevent littering?
•
reduce air pollution?
•
reduce the amount of garbage we produce?
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Ving
Ving

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Let’s check
Let’s check
6
1
2
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4 5
Next

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/should
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TASK 4:LANGUAGE FOCUS
If we pollute the water, we will have no

fresh water to use
Conditional sentences: type 1
IF+ S1+V1(hiÖn t¹i ®¬n ) , S2+ V2 ( will/ can/may/
must + infinitive )


A B
1. If we pollute the water,
2. If you cut down the
trees in the forests,
3. If there is too much
exhaust fume in the
air,
4. If you can keep your
neighborhood clean,
5. If people stop using
dynamite for fishing,
a) there will be big floods
every year.
b) a lot of sea creatures
will be well preserved.
c) more and more people
will cope with
respiratory problems.
d) you will have ideal
place to live.
e) we will have no fresh
water to use.
LANGUAGE FOCUS 4: MATCHING

LANGUAGE FOCUS 5:
Complete the sentences. Example:
a) If the rice paddies are polluted, ( rice
plants / die)
If the rice paddies are polluted, the rice plants
will die.

Complete the sentences.
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 "

Answer key:
b. If we go on littering, the environment will
become seriously polluted
c. If we plant more trees along the street,
we’ll have more shades and fresh air .
d. If we use much pesticide on vegetables, the

vegetables will become poisonous and
inedible.
e. If we keep our environment clean, we’ll
live a happy and healthy life

Do Exercise 8, 9. 10
( P 45 ,46 Workbook )