1. Introduction
The first conditional (also called conditional type 1) is a
structure used for talking about possibilities in the present or in
the future. This page will explain how the first conditional is
formed, and when to use it.
1. The structure of a first conditional sentence
A first conditional sentence consists of two clauses, an "if"
clause and a main clause:
if clause main clause
If you study hard, you will pass the test.
If the "if" clause comes first, a comma is usually used. If the "if"
clause comes second, there is no need for a comma:
main clause if clause
You will pass the test if you study hard.
We use different verb forms in each part of a first conditional:

2. main clause if clause
You will pass the test if you study hard.
2. Using the first conditional
The first conditional is used to talk about things which are
possible in the present or the future — things which may
happen:
Example Explanation
If it's sunny, we'll go to the Maybe it will be sunny — that's
park. possible.
Paula will be sad if Juan Maybe Juan will leave — that's
leaves. possible.
If you cook the supper, I'll Maybe you will cook the supper
wash the dishes. — that's possible.
Exercise
Answer it with the correct form of first conditional
1. If you don't put so much sugar in your coffee, you
________ so much weight!
A. don't put on
B. won't put on

3. 2. If a deer ________ into your garden, it ________
all your plants.
A. gets / will eat
B. ? will get / eats
3. If you ________ an apple every day, you'll be very
healthy.
A. ? eat
B. ? will eat
4. If I ________ some eggs, how many ________?
A. ? will cook / do you eat
B. ? cook / will you eat
5. You ________ better if you turn on the lamp.
A. ? will be able to see
B. ? are able to see

4. 6. If we don't protect the elephant, it ________
extinct.
A. ? will become
B. ? becomes
7. She ________ completely different if she cuts
her hair.
A. ? looks
B. ? will look
8. You ________ heart disease if you eat too
much meat.
A. ? get
B. ? will get
9. You won't pass the course if you ________.
A. won't study
B. don't study

5. 10. You'll pay higher insurance if you
________ a sports car.
A. buy
B. will buy
Enlace
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/1cond.htm
Renata Angélica Reyes Rosas
Universidad del valle de México
Pedagogía . 3er Semestre