I. Match the parts of the sentences to make one and correct.
1. If you heat water, a. it produces greenhouse gases
2. If people don't eat or drink, b. the sea level rises
3. If I am late, c. they become extinct
4. If you have a toothache, d. the greenhouse effect gets worse.
5. When factories use fossil fuels, e. it boils.
6. When you burn oil, f. you save up energy
7. When people cut down trees, g. my father takes me to school.
8. When icebergs melt, h. it is deforestation
9. If you use air conditioning wisely, i. you visit the dentist
10. If people don’t protect animals, j. eventually they die.

Номер 2
IIII. Match the parts of the sentences to make one and correct.
1. If I won the lottery, a. if it didn’t rain.
2. If I were in Brazil, b. I wouldn’t do that.
3. They wouldn’t work any more c. I would travel around the world.
4. We could go out d. if you were me?
5. What would you do e. if they won the lottery.
6. If I were you f. I would go to Rio de Janeiro.
Номер 3
IV. Fill in the sentences with the correct form of the given verb.
Type O Conditional
If the sun …………………(rise) high, it ……………………(become) very hot.
Plants ………………….(die), if it ……………………………(do) not rain.
People …………………..(get) fat, if they ………………….(eat) junk food.
If a person ………………..(practise) sports, he or she always ……… (feel) good.
Type 1 Conditional
If you ……………(cook) the supper, I………..……(wash) the dishes.
She ………………..(pass) the test if she ……………..(study) hard.
If it …….. (be) sunny, we …….. (go) to the park.
Paula ………..(be) sad if Juan ………. (leave.)
Type 2 Conditional
If I ……………..(have) a million dollars, I ……………..(buy)a big house.
If dogs …………(have) wings, they ………….(be) able to fly.
If I ……….(be) you, I ……………(drive) more carefully in the rain.
Paula ………(be) sad if Jan …………………..(leave).