Zero conditional sentences are used to describe general truths or facts that are always true. They contain an "if" clause and a main clause both in the present simple tense, such as "If you heat ice, it melts." Zero conditional sentences can also replace "if" with "when." Examples of zero conditional sentences include "If you heat water to 100 degrees, it boils" and "When it's cold, I always wear a jacket." A review quiz tests the formation of zero conditional sentences.

1. Zero Conditional
Sentences

2. In This Lesson:
• What is the zero conditional?
• How to form zero conditional
sentences.
• Zero conditional example sentences
• Review Quiz
MS. THU

3. Zero conditional sentences are used to talk about facts or
general truths that are always true, like scientific facts.
• What Is The Zero Conditional?
"If you heat ice, it melts"
Example:

4. 2. How To Form Zero Conditional Sentences
Zero conditional sentences are made up of an 'if clause' and a
'main clause'. Both of which include verbs in the present simple
tense.
Example:

5. 2. How To Form Zero Conditional Sentences
Zero conditional sentences can also be made with 'when'
instead of 'if'.

6. 2. How To Form Zero Conditional
Sentences
Zero conditional sentences can also be made with 'when'
instead of 'if'.
"When you heat ice, it melts"
Example:

8. 3. Example Sentences
If you heat water to 100 degrees, it boils.

9. 3. Example Sentences
If I am late for class, my teacher gets
angry.

10. 3. Example Sentences
If it rains and I don't have an umbrella, I
get wet.

11. 3. Example Sentences
If people eat too much, they get fat.

12. 3. Example Sentences
If I study too much, I get really tired.

13. Review Quiz
Choose the correct answer to make a zero
conditional sentence

14. 1
If people eat lots of candy,
A
B
C
they gained weight.
they gain weight.
they are gaining weight.

15. 1
If people eat lots of candy,
A
B
C
they gained weight.
they gain weight.
they are gaining weight.

16. 2
If I wake up late,
A
B
C
I lates for work.
I was late for work.
I am late for work.

17. 2
If I wake up late,
A
B
C
I lates for work.
I was late for work.
I am late for work.

18. 3
When it's cold,
A
B
C
I always wear a jacket.
I wore a jacket.
If I wear a jacket.

19. 3
When it's cold,
A
B
C
I always wear a jacket.
I wore a jacket.
If I wear a jacket.

20. 4
If I don't have much money,
A
B
C
I didn't eat out.
I don't eat out.
I am eating out.

21. 4
If I don't have much money,
A
B
C
I didn't eat out.
I don't eat out.
I am eating out.

22. 5
When you put water in the freezer,
A
B
C
it freezes.
it will be frozen.
it has frozen.

23. 5
When you put water in the freezer,
A
B
C
it freezes.
it will be frozen.
it has frozen.

24. GOOD JOB!