1. Read the passage and choose the best option (A, B, or C) to complete each sentence.

(Đọc đoạn văn và chọn phương án đúng nhất (A, B hoặc C) để hoàn thành mỗi câu.)

We can use renewable and non-renewable energy sources to make electricity.

Most of our electricity comes from power stations that use fossil fuels like coal, oil and gas. We call them non-renewable sources because they will eventually run out. Unfortunately, burning fossil fuels produces lots of greenhouse gases which cause global warming.

We also use renewable energy sources like the sun, wind and water to make electricity. We can use them again and again because they cannot run out. They do not produce greenhouse gases so they are much less harmful to the environment.

1. Power stations use fossil fuels like _______ to produce electricity.

A. coal, oil and gas        

B. coal and gas              

C. oil and gas

2. Burning fossil fuels produces _______ which cause global warming.

A. greenhouse gases      

B. carbon dioxide          

C. methane

3. We can use the _______ to make electricity.

A. sun and water            

B. sun and wind             

C. sun, wind and water

4. The renewable sources can be used again and again because they ______ .

A. can run out                

B. cannot run out           

C. should run out

5. Renewable sources are _______ harmful to the environment.

A. much more                

B. much less                  

C. not less

2. Read the passage and complete the table.

(Đọc đoạn văn và hoàn thành bảng.)

Our environment is in trouble. People and industries are polluting the air, rivers, lakes and seas. There are many things you can do to help the environment. Here are a few.

Cars: The burning of petroleum is one of the biggest sources of carbon monoxide (CO) that causes global warming. CO thins the ozone layer, which protects us from the sunrays. So try walking, bicycling or using public transportation.

Energy: The biggest use of home energy is for heating and cooling homes.

It costs a lot of money. So don't use air-conditioners too often, especially at night. Replace regular light bulbs with low energy light bulbs, which use less energy.

Water: Showers use a lot of water. Buying a special "low-flow" shower head or taking shorter showers can cut this use in half.

3. Complete the passage with appropriate phrases in the box.

(Hoàn thành đoạn văn bằng các cụm từ thích hợp trong hộp.)

We use energy for almost everything we do: for heating our homes, cooking our meals and (1) ________ The use of energy is (2) ________ worldwide. It is responsible for many recent floods, droughts and storms.

What should we do to avoid these problems? Firstly, we should (3) ________ before going to bed or when going out. Secondly, we should use (4) ________ at home.

Thirdly, we should (5) ________ to school. In conclusion, we should use energy more wisely for our future.