The document discusses conditional zero sentences. Conditional zero sentences are used to describe things that always happen if something else happens first, such as instructions or advice. Examples are provided of conditional zero sentences with "if" clauses describing something that triggers an effect in the main clause, such as "If you heat water, it boils" or "Water boils if you heat it." The document also provides exercises for readers to complete conditional zero sentences with the correct verb forms.

2. If you heat water, it boils.
Water boils if you heat it.

3. If you hit glass, it breaks.
The glass breaks if you hit it.

4. when you flip the switch, the light switches on.
The light switches on when you flip the switch.

5. If people eat too much, they get fat.
when you touch a fire, you get burned.
People die if they don't eat.
When babies are hungry, they cry.

6. If you hit glass, it breaks.
Water boils if you heat it.
If clause
Main
clause
If clause
Main
clause

7. If clause If + Subject + verb in the present simple
Main clause Subject + verb in the present simple
If you heat water, it boils.
If clause Main clause
Conditional Zero
Water boils if you heat it
Main clause If clause
You can also start
with the main clause
followed by the if
clause.
USE: We use conditional zero for:
 Things that always happen if something happens first.
 Instructions and advice: If you are sick, visit a doctor. If the door is closed, call me.

8. 1. If ………………………….. (I / go) on a boat, I always feel sick.
2. The teacher gets angry if …………………………. (we / not / work) hard.
3. It's easier to sleep if ………………………… (you / not / be) stressed
4. His mother gets annoyed if ………………………… (he / be) late.
5. If………………………………. (I / not / know) a word, I look in my dictionary.
6. They play football if …….……………………….. (they / not / have) any homework.
7. If you freeze water, ……………………………………. (it / turn) to ice
Complete the zero conditional sentences with the verb in brackets
I go
We don’t work
You are not
He is
I don’t know
They don’t have
It turns

9. 1.(I / wake up late / I / be late for work) ___
2. (my husband / cook / he / burn the food) ___
3.(Julie / not wear a hat / she / get sunstroke) __
4. (children / not eat well / they / not be healthy)__
5.(you / mix water and electricity / you / get a shock) ___
6.(people / eat / too many sweets / they / get fat)_____
7.(you / smoke / you / get yellow fingers) _
8.(children / play outside / they / not get overweight)