Упр.121 Unit 3 2020 ГДЗ Enjoy English 11 класс
Match existing kinds of energy with their sources. Then answer the questions in pairs and give your reasons.
1. Solar energy
2. Geothermal energy
3. Fossil fuel energy
4. Hydroelectric energy
5. Biomass energy
6. Wind energy
7. Nuclear energya) burning coal / natural gas / oil
b) plant / human waste
c) splitting atoms
d) flowing water
e) the heat from inside the earth
f) the heat from the sun
g) moving air1. Which of the sources are renewable? Which are not? What is the difference?
2. Which kind of energy is
— the greatest polluter?
— the cleanest?
— the most dangerous?3. Which kind of energy is most used now? Why is it so?
4. What kind of energy will people use in the future? Why?
1 – f) solar energy — the heat from the sun
2 – e) geothermal energy — the heat from inside the earth
3 – a) fossil fuel energy — burning coal / natural gas / oil
4 – d) hydro electric energy — flowing water
5 – b) biomass energy — plant / human waste
6 – g) wind energy — moving air
7 – c) nuclear energy — splitting atoms
Renewable: solar, geothermal, hydro electric, biomass, wind.
Not renewable: fossil fuel energy, nuclear energy.
Difference: renewable sources are naturally replaced, but non-renewable sources are limited and can run out.The greatest pollutor: fossil fuel energy, because burning coal, oil and gas produces a lot of pollution.
The cleanest: solar energy, because it does not produce harmful waste during use.
The most dangerous: nuclear energy, because accidents and radioactive waste can be very harmful.Most used now: fossil fuel energy.
Why: it is still cheap, widely available and the world already has a lot of equipment for using it.People will probably use more renewable energy in the future, especially solar, wind and hydro electric energy, because they are cleaner and do not run out.
