This material is to work the use of the zero and first conditionals.

1. THE CONDITIONALS
4TH GRADE - SECONDARY

2. ZERO CONDITIONAL

3. If-clause Main Clause
If + Present
Simple
Present
simple

4. How do we use it?
 We use the zero conditional when the result of the condition
is always true.
Examples:
•Scientific facts.
If you heat ice, it melts.
Condition / Result
You get purple
If you mix red and blue,
•Situations that always
happen.
If she comes late, her father
gets angry.
Take an aspirin if you have a
headache.

5. ZERO CONDITIONAL
If you don’t water flowers, they die.
If you have a headache, stop watching TV.
If clause:
PRESENT SIMPLE
Main clause:
PRESENT SIMPLE
or IMPERATIVE
With zero conditional
we express a general truth or we give advice.

6. Match the items in the columns.
1.Put wood in water
2. Stick a pin in a
balloon
3.Mix washing up
liquid with water
4.Heat Butter
5.Throw a coin into
water
6.Add five and six
7.Burn rubber
a) it sinks
b) it produces black
smoke
c) it floats
d) it makes bubbles
e) it bursts
f) it melts
g) you get eleven

7. Use the conditions and results in the box
to complete the phrases below.
CONDITIONS RESULTS
you don’t wear a crash helmet
you heat it to 100° C.
you add sugar
the weather is hot
I drive to work
you get pink
A dog bites
Butter smelts
it scratches you
1. Water boils if ______________________________________________________________.
2. If you mix red and white, ____________________________________________________.
3. _____________________________ ________________________ if you leave it in the sun.
4. If ___________________________________________________________, it tastes sweet.
5. If you pull a cat’s tail, _______________________________________________________.
6. You can end up brain damaged if ______________________________________________.
7. If _____________________________________________, we turn on the air conditioning.
8. When ____________________________________________________ I listen to the radio.

8. FIRST CONDITIONAL

9. If-clause
( hypothesis
)
Main Clause
( result)
If + Present
Simple
will / may/
can +
infinitive
without to

10. FIRST CONDITIONAL
If the weather is nice, we will go for a walk.
If you don’t apologize, she will never trust you again.
If clause:
PRESENT SIMPLE
Main clause:
FUTURE SIMPLE
The first conditional refers to the present and future.
It expresses a possible condition and
its probable result in the future.

11. Match the prompts to the
pictures
 see women
wearing kimonos
 visit the Parthenon
 walk under the
Arc de Triumph
 admire the Taj
Mahal
 go sailing down
the Nile France
If you go to France,
you will ….

12. Match the prompts to the
pictures
 see women
wearing kimonos
 visit the Parthenon
 walk under the
Arc de Triumph
 admire the Taj
Mahal
 go sailing down
the Nile
Japan

13. Match the prompts to the
pictures
 see women
wearing kimonos
 visit the Parthenon
 walk under the
Arc de Triumph
 admire the Taj
Mahal
 go sailing down
the Nile
Egypt

14. Match the prompts to the
pictures
 see women wearing
kimonos
 visit the Parthenon
 walk under the Arc
de Triumph
 admire the Taj Mahal
 go sailing down the
Nile Greece

15. Match the prompts to the
pictures
 see women wearing
kimonos
 visit the Parthenon
 walk under the Arc
de Triumph
 admire the Taj Mahal
 go sailing down the
Nile India

16. 1. If it ____(snow), I’ll take the children skiing.
2. The football match will be cancelled if it _____( rain).
3. I won’t go to the party unless Connie ______( come) with
me.
4. If you ____________( run) fast, you will win the race.
5. Unless they ________ (work) overtime, they won’t earn
enough money to go on holiday.
6. __________ ( Greg/post) this letter for me if I ask him?
7. Unless you _______( drive) carefully, you’ll have an
accident.
8. If someone _____( not/water) these plants, they will die.

17. Fill in the gaps with if or unless.
1. _______ you promise to clean your room , I’ll
take you to the funfair.
2. I won’t be able to afford a brand new car
_________ I get a loan from the bank.
3. ___________ you decide to study Medicine,
you’ll have to work really hard.
4. ________ we win the lottery, we will travel
around the world.
5. I’ll never talk to you again _______ you tell me
the truth.