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... Use banana le
Trang 4How ? What? Wh y ?
What should we do to protect the environment ? Why should we do these things?
How can we do them?
Trang 5I 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.
Trang 6reuse 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
Trang 7Task 2:
Work in pairs Make a dialogue about why we should do those things
For example :
Trang 8Use 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.
Trang 9- Not throw trash onto the water / keep the water clean / polluted water can directly do harm to people’s health and kill fish.
Trang 10- 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
Trang 11Task 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?
You may begin with :
We can/ should ( not)
Trang 12Let’s check
6
Trang 13How can we ? We can /should
- We can reuse and recycle waste paper.(10)
- We can save paper by keeping sheets with single printed for
drafting.( 20)
How can we save
paper ?
Trang 14How can we reduce air pollution?
–We can use public buses
Trang 15We can reuse and recycle
bottles and cans.( 10)
- We can reuse and recycle
many things after use ( 20)
How can we reduce the amount of garbage we produce?
Trang 16–We can put garbage
bins at public places.( 10)
-We should collect trash
and carry them to the
dumps.( 20)
-We can tell our friends
not to throw trash
everywhere Put them
into the garbage bins
( 20)
How can we prevent
littering?
Trang 17We can use banana leaves to wrap food.
Trang 18-We should not throw trash onto the water.( 10)
- We should not use dynamite for
fishing.( 20)
How can we
reduce water
pollution?
Trang 19TASK 4:LANGUAGE FOCUS
If we pollute the water, we will have no
fresh water to use
Conditional sentences: type 1
IF+ S1+V1(hiện tại đơn ) , S2+ V2 ( will/ can/may/
must + infinitive )
Trang 20A B
trees in the forests,
exhaust fume in the
air,
neighborhood clean,
dynamite for fishing,
every year.
will be well preserved.
will cope with respiratory problems.
Trang 21LANGUAGE 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
Trang 22Complete the sentences.
a) If the rice paddies are polluted
( rice plants/ die)
If the rice paddies are polluted , rice plants will die.
b) If we go on littering,
( environment /become /seriously
polluted)
c) If we plant more trees along the
street, (we/have /more shades and
fresh air )
d) If we use much pesticide on
vegetables the vegetables/ become poisonous and inedible)
e) If we keep our environment clean, ( we/ live / happier and healthier) life
Trang 24Do Exercise 8, 9 10
( P 45 ,46 Workbook )