If I had seen someone trying to break in. I would have called the police.- c

activate the alarm - evacuate the building quickly and quietly - use the nearest emergency exit - not use the lift

e.g. If you see smoke, activate the alarm.

If you see smoke, activate the alarm. If you see fire ( If you feel earthquake), evacuate the building quickly and quietly. Use the nearest emergency exit, if you smell smoke. Not use the lift, if you hear ( see) building crash.

I use the first type of conditional.

3. What will you do if...

1. an earthquake occurs? – If an earthquake occurs, I will leave the building quickly and quietly.

2. a fire alarm goes off?- If a fire alarm goes off, I will go through the nearest emergency exit.

3. there's a blackout?- If there`s a blackout, I will wait at home or go to bed.

4. you see a car crash?- If I see a car crash, I will call the police and go away from the car.

1. you were trapped under debris. - whistle

2. the boat you were on started sinking. – life-jacket

3. you were trapped in a mine. - torch

4. you were travelling through a desert. - compass

5. you got stuck in an underground train. - axe

1. torch

torch whistle axe life-jacket compass

1. 5 How' could these accidents have been avoided?

2. A house burnt down. A young boy was playing with matches ...If the young boy hadn't been playing with matches, the house wouldn’t have burnt down....

3. The town was flooded. The dam burst. – If the dam didn`t burst, the town wouldn`t have been flooded.

4. Two cars collided on the road. One of the drivers had been drinking. – If one of the drivers hadn`t been drinking, two cars wouldn`t have collided on the road.

5. A cyclist was seriously injured by a car at night. The cyclist had no lights on his bicycle.- If the cyclist had had lights on his bicycle, he wouldn`t been injured by a car at night.

6. A garage exploded. A man threw his cigar out of the win­dow of his car.- If the man hadn`t thrown his cigar out of the window of his car, a garage wouldn`t has (have) exploded.

6 Go through the sentences and note how the form of the verb changes with “unless”. Then, rewrite the sentences.

1. If you don't have a map, you will lose your way.

...Unless you have a map. you will lose your way...

2. If we don't transmit a message now, it will be too late.- Unless we transmit a message now, it will be too late.

3. If the windscreen isn't clear, how can the driver see?- Unless the windscreen is clear, how can the driver see?

4. If you don't wear warm clothes, you'll get cold. – Unless you wear warm clothes, you`ll get cold.

5. If we don’t refill our air tanks, we’ll suffocate. – Unless we refill our air tanks, we`ll suffocate.

1. Fill in the correct tense then identify the type of conditional.

1. If we lived in a well-built house, we wouldn`t be (not/be) in danger.-

2. The car will not roll (not/roll) back as long as you put the brake on.

3. You might cut yourself if you played (play) with knives.

4. I would always wear a helmet if I were (be) you.

5. If you'd locked the medicine up. He wouldn`t have drunk (not/drink) it.

6. Supposing you got (get) stuck in the lift, what will you do?

7. If he had listened (listen) to the weather forecast, he

wouldn't have sailed in such stormy weather.

8. What would you do (you/do) if there was an emer­-

gency landing?

9. If you hear the alarm, will head for (head for) the exit.

10 If he had been driving more carefully, he would have avoided (avoid)

the accident.

2. Rewrite the sentences using inversion.

1. If someone tries to break in. call the police.

...Should someone try to break in, call the police ...

2. If I were you, I'd hire a bodyguard.- Should I were you, I`d hire a bodyguard.

3. If he had let off flares, they would have spotted him.- Would he has let off flares, they spotted him.

4. If you see smoke, activate the alarm.- Would you see smoke, activate the alarm.

5. If she hadn’t gone through the traffic lights, she wouldn’t have hit the pedestrian.- Would she has gone through the traffic lights, she hadn`t hit the pedestrian.

Decide which object you would use if:

2. you were trapped under debris.

the boat you were on started sinking.

you were trapped in a mine.

you were travelling through a desert.

you got stuck in an underground train.