Exercises of Activity Book

What I have learnt

1  Complete the pieces of advice with the correct form of these verbs.

1. In winter, turn down the heating by just 1°C.
2. In summer, turn off your air conditioning every day for four hours when you're not in the house.
3. Don’t place hot food in the fridge. Let it cool down to room temperature before putting it in the fridge.
4. Reduce your waste!

2  Make sentences.

1. is/warming / Earth's / temperature/ rise/in/./ Global / the

Global warming is the rise in Earth's temperature.

2. catch/from/gases/ atmosphere/ energy/the/ Some / Sun/./ the/ in

Some gases in the atmosphere catch energy from the Sun.

3. gases/these/Carbon/is/of /./ dioxide / one

Carbon dioxide is one of these gases.

4. the/ we / too / warm / carbon/ When / have/ dioxide/, / Earth/ gets/ much /.

When we have too much carbon dioxide, the Earth gets warm.

5. Global/weather /. / changes / our/ warming

Global warming changes our weather.

3  Choose the correct answer.

1. The temperature of the ……… goes up.

a) Earth's

b) Earths

c) Earth

2. Our weather gets violent ……… unpredictable.

a) also

b) and

c) but

3. Global warming ……… a problem without solution.

a) isnot

b) isnt

c) isn't

4. Global warming is ……… fault.

a) people's

b) people

c) peoples

5. Carbon dioxide is in the atmosphere.

Other gases ……… exist in the atmosphere.

a) but

b) and

c) also