5. USES / 1. Rules
If you take your cell phone into
class, it must be turned off.
If you drink alcohol, don’t drive.
Do not use a calculator when you
write the test.
6. 2. Scientific Facts
and General Truths
•
If you heat water to 100
degrees Celsius, it boils.
• If you drop something, it falls.
• When you combine oil and
water, they do not mix.
7. 3. Cause and Effect
If you push the button, the
volume increases.
If you close the door, it
locks automatically.
The computer turns off when
you disconnect the battery.ee more
at: http://www.learnenglish-
8. 4. Routine
I wear my boots when I work.
She uses glasses when she
drives.
When I cook, I use olive oil. more
at: http://www.learnenglish-
online.com/grammar/zeroconditional.html#st
hash.BnSQfcUk.dpuf
9. Examples:
1. If you heat ice, it melts.
2. Ice melts if you heat it.
3. If I go to bed late, I wake up late.
4. You pay higher income taxes when you
earn more money.
5. If you mix red and blue, you get purple.
10. Negative
•
If you do not exercise, you
gain weight.
• If you exercise, you do not
gain weight.
• If I don’t study, I don’t do
well on tests.
11. Questions
Does ice melt if you heat it?
When do you wake up if you have
to work?
If you have to work, when do you
wake up?
12. 1. If you eat fast food,
a) you will gain weight.
b) you gains weight.
c) you gain weight. CORRECT
d) you gained weight.
13. 2. If you study hard,
a) you get good grades.
b) you got good grades.
c) you getting good grades.
d) you will get good grades.
14. 3. When she works early,
a) she woke up early.
b) she will wake up early.
c) she wake up early.
d) she wakes up early
15. 4. When the radio plays,
a) it's hard to hear you speak.
b) it was hard to hear you speak.
c) it is hard to hear you spoke.
d) it's hard to hear you will speak.
16. 5. I always wear a jacket
a) when it will be cold.
b) when it is cold.
c) when it was cold.
d) when it is being cold.
17. 6. He never buys lunch
a) if he doesn't has cash.
b) if he no have cash.
c) if he won't have cash.
d) if he doesn't have cash
18. 7. When you heat water,
a) it boils.
b) it's boiling.
c) boils the water.
c) it was boil.
19. 8. Does ice melt
a) if it is in the sun?
b) if it were in the sun?
c) if they are in the sun?
d) if it will be in the sun?
20. 9. What do you do
a) if the teacher was sick?
b) if the teacher had been sick?
c) if the teacher will be sick?
d) if the teacher is sick?
21. 10. Does the computer work
a) if you use batteries?
b) if you used batteries?
c) if you will use batteries?
c) if you had used batteries?
22. Wrap up: 10 minutes
In groups of five
Group N 1 = Make a routine
Group N 2 = make rules
Group N 3 = Talk about facts
Group N 4 = Cause and efcts
Then share your sentences with the other
groups
23. Thank you for your attention
And remember the most important
conditional:
If you learn,
you get smart.