Zero and first conditional

4TH GRADE - SECONDARY

THE CONDITIONALS

ZERO CONDITIONAL

If-clause Main Clause

If + Present Simple

Present simple

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 purpleIf 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.

ZERO CONDITIONAL

If you don’t water flowers, they die.

If you have a headache, stop watching TV.

With zero conditional

we express a general truth or we give advice.

If clause:

PRESENT SIMPLE

Main clause:

PRESENT SIMPLE

or IMPERATIVE

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 Butter5.Throw a coin

into water6.Add five and six7.Burn rubber

a) it sinksb) it produces

black smokec) it floatsd) it makes

bubblese) it burstsf) it meltsg) you get eleven

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.

FIRST CONDITIONAL

If-clause

( hypothesis)

Main Clause

( result)

If + Present Simple

will / may/ can +

infinitive without to

FIRST CONDITIONAL

If the weather is nice, we will go for a walk.

If you don’t apologize, she will never trust you again.

The first conditional refers to the present and future.

It expresses a possible condition and

its probable result in the future.

If clause:

PRESENT SIMPLE

Main clause:

FUTURE SIMPLE

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 Fran

ce

If you go to France, you

will ….

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

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

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 Gree

ce

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

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.

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.