revision for kem and nga

có thể thay thế

• changeable

• alternative

• cheap

• costly

The wind, the sun, and the wave are some types of __________ sources of energy.

• changeable

• alternative

• cheap

• costly

sự tiêu thụ

• consume

• expenses

• consumption

• expense

People will reduce energy __________ as much as possible.

• consume

• expenses

• consumption

• expense

năng lượng hạt nhân

• Nuclear power

• wind power

• solar power

• hydro power

Low energy light bulbs should be used to __________ electricity.

• spend

• buy

• heat

• save

We must __________ the amount of water our family used every day

• lessen

• reduce

• increase

• reuse

fossil fuels

• năng lượng hạt nhân

• nhiên liệu hoá thạch

• nhiên liệu than đá

• nhiên liệu xăng dầu

Fossil fuels are very common in our society but they __________ the environment.

• renew ( làm mới )

• provide (cung cấp)

• waste ( lãng phí)

• pollute ( gây ô nhiễm )

_________ energy is produced by collecting sunlight and converting it into electricity

• solar

• wind

• hydro

• nuclear