1. Complete the sentences with the phrases in the box. There is one extra phrase.

(Hoàn thành các câu với các cụm từ trong hộp. Có một cụm từ không sử dụng đến.)

1. We can protect __________ by reducing our use of coal and gas.

2. The workers are putting __________ on the roof of my house.

3. We are putting the __________ in the kitchen tomorrow.

4. She turns off __________ when not using them.

5. Do they recycle __________?

6. They are looking for a __________  now.

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 __________.

3. Complete the sentences, using the verbs in brackets in the present continuous.

(Hoàn thành các câu, sử dụng các động từ trong ngoặc ở hiện tại tiếp diễn.)

1. The boys (not do) __________ their homework at the moment. They (watch) __________ TV instead.

2. Mai (read) __________  about renewable energy, and Nam (do) __________ a project on our local environment.

3. The music (get) __________ louder and louder. Many people (put) __________ their hands over their ears.

4. Her mother (not have) __________  a nap now. She (water) __________ the plants.

5. My father (install) __________ a biogas cooker in the kitchen, and the workers (put) __________ solar panels on the roof of our house.

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.

_________________________________________________

5. Complete the sentences, using the present simple or present continuous.

(Hoàn thành các câu, sử dụng thì hiện tại đơn hoặc hiện tại tiếp diễn.)

1. Lan always (call) ______ me when I (do) ______ my homework.

2. The workers (put) ______ the solar panels on the hill when it suddenly (rain) ______.

3. While we (look) ______ for information about energy sources, the electricity (go) ______ out.

4. I often (play) ______ the piano in the evening, but tonight I (watch) ______ TV.

5. Normally my father (water) ______the vegetables in the garden, but today he (cook) ______ in the kitchen.

6. They (have) ______ a lot of work to do, so they (not go) ______ to town tonight.

7. He usually (come) ______ back home at one o'clock, but today he (work) ______ late.

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.