Bio-fuels and Non-Renewables


  • Bio fuels = renewable energy = made from plants and waste = can be in any state (solid, liquid or gas)
  • Can be burnt to produce electricity
  • Carbon neutral
  • Reliable = plants take a short amount of time to grow
  • Cannot meet high energy supplies when there is a demand for energy
  • Biofuels are stored for when they are needed
  • Growing crops from biofuels = not enough space or water for food crops
  • To make space to grow crops = deforestation = lots of species losing their habitats
  • Decay and burning of vegetation = co2 and methane released
  • Fossil fuels and nuclear fuels = reliable
  • Enough to meet current demands = as extracted from earth at a fast rate = so, can respond quickly when there is an energy surge
  • They are running out
  • running costs aren’t expensive
  • all fossil fuels, when burnt release CO2 = adds to greenhouse effect = contributes to global warming
  • burning coal and oil = sulphur dioxide released = acid rain = harmful to trees and buildings
  • acid rain can be reduced by removing sulphur from fuel before burning
  • coal mining = ruins the landscape
  • oil spillages = serious environmental problems
  • nuclear power = clean. Nuclear waste = dangerous & difficult to dispose of
  • nuclear fuel = cheap
  • overall cost of nuclear power = high
  • major risks for example Fukushima disaster in Japan

How long have you…? (present perfect 4) Exercises




Use the information given to create questions beginning with ‘How long…?’

• It is snowing.

• The weather is shining.

• John and Kate are married.

• My brother has gone on holiday.

• My aunty and uncle live in Canada.

• My sister is a teacher.

• I work at the chemist.

• I’ve known Susan since I was a baby.

• Jonathan is learning to speak to Mandarin.




Fill in the missing gaps in the sentences using the present perfect (=has/have + past participle)

• I have known Kate a long time.

• My brother has been playing the piano he was 11 years old.

• My mum and dad on holiday to America. They

gone since last Sunday.

• I Ben and Emma since primary school.

We to the same primary and secondary school.

• My sister learning to speak French because she
is going to France next month.



Use the appropriate words in the missing gaps.

have you lived       lives      to

has been       works        have known

I have bought       have worked.

• My sister in Spain. She is studying Spanish

with her friend Rosie. I Rosie since I was 5.

• Spencer like with Jamie. They have worked

together for 2 years.

• How long in Australia?

• a new dress for prom.

• He to Thorpe park.



Challenge: Create 4 of your own questions beginning with ‘How long……?’








1 2 3 4 5 6  

“Every accomplishment starts 
With the decision to try.” Gail Dever

++44 (0)1924 506010