1. CCC Kei Wa Primary School (Kowloon Tong) Unit 9 ~ Learning sheet 9.5a
Name: ___________________( ) Class: P.6( )
Pollution
Conditional Clause

2. Conditional Sentence
We use conditional sentences to talk about something that may happen.
We use the simple future tense to describe the result of a condition.
e.g. If I miss the bus, I will take a taxi.
the condition
the result of the condition

3. What will happen if we breathe in toxic smoke?
feel sick
If we breathe in toxic smoke, we will feel sick.

4. What will happen if we dump rubbish into the sea?
dirty seafood
If we dump rubbish into the sea, we will have dirty seafood.

5. CCC Kei Wa Primary School (Kowloon Tong) Unit 9 ~ Learning sheet 9.5a
Name: ___________________( ) Class: P.6( )
What will happen if we live near heavy traffic?
a headache
If we live near heavy traffic, we will have a headache.

6. We can also use “should” or “should not” to describe something we must or must not do.
e.g. 1. If we study in the library, we
should talk quietly.
2. If you drink too much alcohol,
you should not drive.

7. What should we do if we want to save more paper?
use both sides
If we want to save more paper, we should use both sides.

8. What should we do if we go shopping?
bring our own bags
If we go shopping, we should bring our own bags.

9. What should we do if we leave home?
switch off / lights
If we leave home, we should switch off the lights.

10. We can also use “would” and “could” in a conditional sentence.
We use this pattern to talk about the condition which is unlikely to happen.
If + past tense , would/ could + verb.
e.g. If I were a rich man, I would buy a big house.
e.g. If I had ten thousand dollars, I could buy a new computer.

11. I would not stay in Hong Kong. If I were a bird,
The air pollution is very serious in Hong Kong.
H.K.
would not stay
a bird
I would not stay
in Hong Kong.
If I were a bird,

12. not cut down so many trees.
Businessmen cut down a lot of trees and make paper.
would not cut / so many trees
a businessman
If I were a businessman,
I would
not cut down so many trees.

13. If I lived near a construction site, I would close all the windows.
Peter lived near a construction site.
live/ construction site
close / all the windows
If I lived near a construction
site,
I would close all the windows.

14. The government can’t think of any methods to solve the pollution problems.
think / methods/ solve/ pollution problems
government
some methods to solve the pollution
I could think of
problems.
If I were the government,

15. this noisy environment. I could not live in If I were Peter,
Peter lived in a noisy environment.
Peter
live / noisy environment
this noisy environment.
I could not live in
If I were Peter,