E7 - B44_ Revision Unit 10

____________ source of energy is the source that can’t be replaced after use.

• Renewable

• Natural

•  Effective

• Non-renewable

If everyone ____________ fossil fuels, they will quickly run out.

•  protects

• wastes

•  consumes

• saves

Non-renewable energy sources will run out because they are ____________.

•  helpful

• limited

• harmful

• unlimited

Solar energy is a green, clean, and ____________ energy source.

• polluting

• non-renewable

•  renewable

• recyclable

Nuclear energy is not ____________ and it is not green because of radioactive waste.

•  safe

• dangerous

• polluted

• cheap

Hydro power is the most efficient way to ____________ electricity in many countries.

•  create

• waste

• generate

• turn

Answer explanation

generate electricity: phát điện

Renewable energy sources are better for the environment and they will not _________.

•  run out

• rely on

• turn off

•  put on

Answer explanation

run out: hết, cạn kiệt

rely on: phụ thuộc vào

turn off: tắt

put on: mặc

I can ____________ much energy by turning off the TV when not watching it.

• use

• make

• spend

• save

_________ energy sources can be used to create energy, generate electricity, or drive big machinery but they are harmful to the environment.

• Solar

• Non- renewable

• Wind

• Renewable

Instead of using electricity to make wind - like a fan - wind turbines use _______ to make electricity.

• oil

• solar

• wind

• water

Answer explanation

turbine: tuabin