C- Complete the sentences using “if” or “when” and
the right form of the verbs in brackets.
_____ you _______ (speak) slowly, I can understand
you.
_____ the weather _______ (be) nice, we always
________ (go) to the beach.
______ I ________ (be) late, my parents ________ (get)
angry with me.
_____ I ________ (arrive) home from work., I usually
_________ (have) a cup of coffee.
I ________ (stay) in bed _____ I _________ (have) a
temperature.
____ you study hard, you _______ (get) good marks.
______ I _______ (feel) tired, I ________ (go) to bed
FORM OF ZERO CONDITIONALSUSE OF ZERO CONDITIONALS
This type of conditional clause is used to talk
about situations that are always true if
something happens.
In this type of conditional clause “if” can
often be replaced by “when”.
If I´m late, my father takesme to school
Or:
When I´m late my father takes me to
school.
PRESENT SIMPLE + PRESENT SIMPLE
( If- clause ) (main clause)
If I meetmy friends at the weekend,
we goto the cinema.
If my mother is ill, I stay at home
to look after her.
A-Fill in the blanks using the verbs in brackets in the right form.
B- The following are well-known scientific facts
or natural laws. Put the verbs into the right form.
If the temperature of water ________ (drop) to freezing
point, it _______ (turn) into ice.
If water ________ (reach) boiling point, it _______
(change) into steam.
If we _________ (add) oil and water together, the oil
___________ (float) on top.
If you _________ (throw) a stone into the air, gravity
_________ (pull) it back to earth again.
If an iron object __________ (stand) in the open air
for long, it ___________ (become) rusty.
If we ___________ (leave) silver in the sunlight, it
_____________ (go) black.
If a cloud ___________ (release) electricity, this
___________ (find) the shortest way to the ground.