ZERO CONDITIONAL How do we use it We

How do we use it? Ø We use the zero conditional when the result

IF AND WHEN We can use WHEN instead of IF, it will have the

More examples – if/when • • • If you heat ice, it melts When

UNLESS Ø UNLESS means the same as IF NOT. Examples: • I can’t drive

Use the conditions and results in the box to complete the phrases below. CONDITIONS

Convert this sentences from UNLESS to IF NOT. 0. You can’t go on vacation

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ZERO CONDITIONAL

How do we use it? Ø We use the zero conditional when the result of the condition is always true. Examples: • Scientific facts. If you heat ice, it melts. Condition / Result • Situations that always happen. If she comes late, he gets angry. You get purple if you Take an aspirin if you mix red and blue have a headache.

IF AND WHEN We can use WHEN instead of IF, it will have the same meaning. Examples: Plants die when they don’t get enough water Ø Is the same that Plants die if they don’t get enough water

More examples – if/when • • • If you heat ice, it melts When you heat ice, it melts You get purple if you mix red and blue You get purple when you mix red and blue If she comes late, he gets angry. When she comes late, he gets angry. • Take an aspirin if you have a headache. Take an aspirin when you have a headache.

UNLESS Ø UNLESS means the same as IF NOT. Examples: • I can’t drive unless I have my glasses. I can’t drive if I don’t have my glasses. • You can’t drive unless you have a license. You can’t drive if you don’t have a license.

Use the conditions and results in the box to complete the phrases below. CONDITIONS 1. 2. 3. 4. 5. RESULTS you don’t wear a crash helmet you get pink you heat it to 100° C. A dog bites you add sugar Butter smelts the weather is hot it scratches you I drive to work Water boils if _______________________________. If you mix red and white, __________________________. _______________ if you leave it in the sun. If ______________________________, it tastes sweet. If you pull a cat’s tail, ____________________________.

Convert this sentences from UNLESS to IF NOT. 0. You can’t go on vacation unless you save money. You can’t go on vacation if you don’t save money. 1. You feel cold in rainy days unless you wear a coat. ___________________________________. 2. Unless you drive more carefully, you can have an accident. ___________________________________. 3. He gets lost unless someone shows him the way. ___________________________________. 4. My parents get angry unless I have good marks. ___________________________________. 5. You can’t watch television unless you finish your homework. ___________________________________. 6. Unless they lower the price, I don’t buy in that store. ___________________________________.