Unit 11: OUR GREENER WORLD

Lesson 7: LOOKING BACK
AND PROJECT
Vocabulary:
Add more words.
rubbish
gas
electricity
paper
envelope
plastic bag
bottle
can
light
bulb
book
plastic
bag
plastic
box
newspaper
3. a. Complete the words or phrases.
d_ _ _r_ _ _ a_ _ _
a_ _ pollution
_ _t_ _ pollution
n_ _ _e pollution
_o_ _ pollution
deforestation
air pollution
water pollution
noise pollution
soil pollution
3. b. Matching.
deforestation
air pollution
water pollution
noise pollution
soil pollution
d. causes lack of food.
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a. makes fish die.
b. makes animals’ homes disappear.
c. causes sleeping problems.
e. makes the Earth warmer.
II. Grammar:
If + S + V(present), S + will + V_infinitive.
* The conditional sentence type 1:
4. Write the correct form.
If + S + V(present), S + will + V_infinitive.
If the Earth (be) _______ warmer, the sea level (rise) _________.

2. If the sea level (rise) _______, some countries (disappear) _________________.
is
will rise
will disappear
rises
If + S + V(present), S + will + V_infinitive.
3. If we (reduce) _________ soil pollution, we (have) ___________ enough food to eat.

4. If we (not have) ____________ enough food, we (be) _____________ hungry.

5. If we (be) _____ hungry, we (be) ____________ tired.
reduce
will have
will be
are
don’t have
will be
5. Combine sentences.
1. Students recycle and use recycled material. They save energy.
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2. We use the car all the time. We make the air dirty.
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If students recycle and use recycled materials, they will save energy.
If we use the car all the time, we will make the air dirty.
3. You save electricity. You turn off your computer when you don`t use it.
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4. People stop using so much energy. They want to save the environment.
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5. You see a used can in the road. What will you do?
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You will save electricity if you turn off your computer when you don`t use it.
People will stop using so much energy if they want to save the environment.
If you see a used can in the road, what will you do?