Unit 10: Bài trong sách

Chia động từ trong ngoặc

Mai (talk)............. about types of energy sources now.

We (use)............ solar energy to replace energy from coal today.

Keep quiet! The students of Class 7C (take).............. a test.

Scientists (develop).............. new energy sources to protect the environment.

We (reduce).............. the use of nuclear energy nowadays.

Non-renewable sources are coal, oil and natural gas. We can use these sources to produce energy. They are cheap and easy to use. People use them a lot. But they are very limited and will run out soon.

Non-renewable sources are cheap and ___________.

• A.available

• B.easy to use

• C.expensive

Renewable sources come from the sun, wind or water. When energy comes from the sun, we call it solar energy.

___________ come from the sun, wind or water.

• A.Renewable sources

• B.All energy sources

• C.Non-renewable sources

Wind energy comes from the wind, and hydro energy comes from water.

When energy comes from water, we call it ___________.

• A.wind energy

• B.solar energy

• C.hydro energy

In the future we will rely more on renewable energy sources. They are better for the environment and they will not run out.

Renewable energy sources are better for ___________.

• A.the environment

• B.our cars

• C.hydro energy

Ghép từ

• solar

• energy

• hot

• energy sources

• low

• energy light bulbs

• electrical

• appliances

• renewable

• water