2. Read the following sentences and mark (') the stressed syllable in the underlined words. (Đọc các câu sau và đánh dấu (') âm tiết được nhấn trọng âm vào các từ được gạch dưới.)

1. Solar energy is renewable and abundant.

2. The government is looking for effective sources of energy to replace coal.

3. Using coal is polluting the environment.

4. There are three syllables in the word "exercise".

5. I think nuclear power is not only expensive but also dangerous to our environment.

6. They are reducing energy consumption as much as possible.

2. Do the crossword puzzle and complete the sentences.(Chơi trò chơi ô chữ và hoàn thành các câu.)

Across: 

1. Solar energy is __________  and it can be replaced easily.

2. Hydro energy is __________ because it requires dams.

3. Coal, oil and natural gas are non-renewable energy sources. Burning them is __________ to the environment.

Down: 

4. The alternative sources of energy like the sun and wind are not only plentiful but also __________  and safe to use.

5. Wind energy is convenient and __________.

6. Coal is __________ and it can be replaced by renewable sources.

7. For many people living in rural areas, biogas is a __________ source of energy.

8. Nuclear energy can provide enough electricity for the world's needs, but it is __________.

4. Make sentences, using the words and phrases below to help. You can change the words / phrases or add necessary words. (Đặt câu, sử dụng các từ và cụm từ trợ giúp bên dưới. Bạn có thể thay đổi các từ / cụm từ hoặc thêm các từ cần thiết.)

1. The teacher/ give a talk / renewable energy / now.

_________________________________________________

2. The workers / build/ huge hydro power station / this year.

_________________________________________________

3. The students / not study Unit 10/ at the moment.

_________________________________________________

4. Nowadays, people in rural areas/ use energy from the sun.

_________________________________________________

5. The government / increase taxes on electricity / save energy.

_________________________________________________

6. We/reduce the use / nuclear energy/ nowadays.

_________________________________________________

6. Put the verbs in brackets into the present simple or present continuous. (Đặt các động từ trong ngoặc ở hiện tại đơn hoặc hiện tại tiếp diễn.)

My parents work at a big hydro power station. My mother (1. work) ______ in the design section and my father (2. work) ______ in the sales section. He often

(3. go) ______  abroad on business. At the moment, he (4. travel) ______ round America, and next month he (5. meet) ______  a customer in Canada. He (6. like) ______ travelling and (7. enjoy) ______ his present trip, but he always (8. feel) ______ happy to get back home.

2. Mi and Tony are talking about energy sources. Choose the sentences (a-e) to fill in the gaps (1-5) of the conversation. (Mi và Tony đang nói về các nguồn năng lượng. Chọn các câu (a-e) để điền vào khoảng trống (1-5) của đoạn hội thoại.)

Mi: Hi, Tony. I'm doing a project on energy sources, but I don't understand what non-renewable sources are.

Tony: (1) ______________________________

Mi: Oh. Where do they come from?

Tony: (2) ______________________________

Mi: What will happen to us when they run out?

Tony: (3) ______________________________

Mi: So what will we do then?

Tony: (4) ______________________________

Mi: They are abundant  and safe to use. Oh, I see. What do we call them?

Tony: (5) ______________________________ They are renewable because they cannot run out.

Mi: Thank you.

D. READING

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

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.

2. Make advice or suggestions, using the words and phrases below to help you. You can add necessary words. (Đưa ra lời khuyên hoặc gợi ý, sử dụng các từ và cụm từ bên dưới. Bạn có thể thêm các từ cần thiết.)

1. Governments should do many things/ the problems/ energy shortage and pollution.

2. They should encourage people/ use public transportation.

3. They should increase the tax/ petrol.

4. They should/ reduce the use/ fossil fuels/ coal, natural gas and oil.

5. They should use/ renewable energy sources / the sun, wind and water.

6. They look for / new renewable energy sources / our future and the future of the planet.