I.  Choose the best one (A, B, C or D) to complete the sentence or replace the underlined word.

      1.   Nuclear energy is                   , but it is dangerous.

            A. renewable               B. non-renewable       C. natural resource     D. fossil fuel

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

            A. waste                      B. pollute                    C. renew                      D. provide

      3.   All the houses in our village will be               by solar energy.

            A. frozen                     B. widened                  C. heated                     D. heightened

      4.   Several governments try to                 the use of fossil fuels.

            A. waste                      B. save                        C. reduce                     D. increase

      5.   At this time next week, we                  a wind turbine in our garden.

            A. will installed          B. will be installing    C. install                     D. installed

      6.   Low energy light bulbs should be used to                  electricity.

            A. convert                   B. save                        C. spend                      D. buy

      7.   It is a good idea to use                        when travelling long distances.

            A. private cars            B. public transport      C. cars                         D. taxis

      8.   “Why is it called a                   source?” - “Because it can be replaced easily and quickly.”

            A. renewable               B. non-renewable       C. effective                 D. specific

      9.   We must           the amount of water our family use every day.

            A. lessen                     B. narrow                    C. lower                      D. reduce

      10. Wave energy is a source of                 energy.

            A. environmental friendly                              B. environmentally friendliness

            C. environment friendly                                 D. environmentally friendly

      11. Alternative sources of energy             developed in the near future.

            A. has been                 B. will be                    C. is                             D. was

      12. She                   cooking in the kitchen at 7 PM tomorrow.

            A. will                         B. is                             C. will be                    D. be

      13. Some new energy-saving bulbs           in the dining room.

            A. will be put              B. will put be              C. will put                   D. will be putting

      14. What should we do to             electricity?

            A. take                        B. save                        C. cut                          D. waste

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

 (3) Read the text. (Page 44)

Dear guests, I’d like to talk to you today about renewable and non-renewable energy.

Fossil fuels are nom-renewable energy sources. They include oil, coal, and natural gas. They can be used to create energy, generate electricity or drive big machinery. Unfortunately, they are harmful to the environment. Viet Nam still relies mostly on non-renewable energy sources, however, hydro power is increasingly used here too.

Hydro and nuclear power can generate a great deal of energy. They are renewable and plentiful. However, hydro power is limited because dams cannot be built in certain areas. Nuclear power can provide enough electricity for the world’s needs, but it is dangerous.

The sun and the wind are other alternative sources of energy. The win turns turbines to make electricity. Solar power can be converted into electricity. It can be used to heat or cool our houses. Although there are some disadvantages, these alternative energy sources can offer abundant amounts of clean, safe electricity. They will be valued more and more in the future in Viet Nam.

a. Match the verbs with the nouns.

Verbs Nouns

1. create

2. drive

3. generate

4. turn

5. heat a. machinery

b. turbines

c. energy

d. houses

e. electricity

Answer: 1…,2…,3…,4…,5…

b. Answer the questions.

1. How many types of energy sources are mentioned in the text? What are they?

…………………………………………………………………………………………..

2. What are the disadvantages of hydro and nuclear power?

………………………………………………………………………………………….

3. Why do you think the wind and the sun are called alternative sources of energy?

…………………………………………………………………………………………

4. What types of energy does Viet Nam use most?

……………………………………………………………………………………

I. Read the passage and choose the best answer A, B, C or D to complete the passage.

The natural environment includes all natural resources that are necessary for life: the air, the oceans, the sun, andthe land. Because they are vital for life, these resources must be protected from pollution and conserved. Ecologists study their importance and how to (1).......... them carefully.

According to ecologists, resources are divided into two groups: (2).......... and non-renewable. When a resource is used, it takes some time to replaceit. If the resource can be replaced (3)........., it is called renewable. If it cannot be replaced quickly and easily, it is non-renewable. For example, grass for animals is a renewable resource. When cows eat the grass, the resource is used. If the soil is fertilized and (4).........., more grass will grow. Coal, however, is non-renewable because it takes millions of years to make coal. All fossil fuels are non-renewable resources.

1. A. use B. be used C. used D. using

2. non-renewable B. renewable C. limited D. plentiful

3. A. easy B. difficultly C. quickly D. for a long time

4. A. protect B. protected C. protecting D. to protect

III.Choose the best one (A, B, C or D) to complete the sentence or replace the underlined word.

      1.   Nuclear energy is ... , but it is dangerous.

            A. renewable        B. non-renewable    C. natural resource   D. fossil fuel

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

            A. waste                      B. pollute                    C. renew               D. provide

      3.   All the houses in our village will be ... by solar energy.

            A. frozen                     B. widened                 C. heated       D. heightened

      4.   Several governments try to ... the use of fossil fuels.

            A. waste                      B. save                        C. reduce         D. increase

      5.   At this time next week, we ... a wind turbine in our garden.

            A. will installed           B. will be installing     C. install               D. installed

      6.   Low energy light bulbs should be used to ... electricity.

            A. convert                   B. save                        C. spend                  D. buy

      7.   It is a good idea to use ... when travelling long distances.

            A. private cars             B. public transport      C. cars                     D. taxis

      8.   “Why is it called a ... source?” - “Because it can be replaced easily and quickly.”

            A. renewable               B. non-renewable        C. effective          D. specific

      9.   We must ... the amount of water our family use every day.

            A. lessen                      B. narrow                    C. lower               D. reduce

      10. Wave energy is a source of ... energy.

            A. environmental friendly                           B. environmentally friendliness

            C. environment friendly                                 D. environmentally friendly

      11. Alternative sources of energy ... developed in the near future.

            A. has been                 B. will be                    C. is                          D. was

      12. She ... cooking in the kitchen at 7 PM tomorrow.

            A. will                         B. is                             C. will be                    D. be

      13. Some new energy-saving bulbs ... in the dining room.

            A. will be put           B. will put be           C. will put        D. will be putting

      14. What should we do to ... electricity?

            A. take                        B. save                        C. cut                      D. waste

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

iii. choose the best answer (a, b, c or d)

1. __________ is  a renewable source. (Coal/ Oil/ Wind/ Gas)

2. It is going to rain any minute now. The children ___________ in the rain.

A. is being caught       B. will be caught       C. is caught                   D. are caught

3. . Wind, hydro and solar are _______. energy sources.

A. modern                   B. renewable               C. non-renewable                   D. new

4.___________ you ______ up this book for me, please?

A. Are… going to wrap    B. Will … be wrapping   C. Will …wrap    D. Have…wrapped

5.  _____ is a single-wheel bike. ( Monowheel/  Hover scooter/ Segwey/ Teleporter)

6. The books are all________.      A. my                B. me                C. him                  D. mine

7 .It’s really difficult to _____ a bicycle up the hill.       A. pedal     B. drive      C. fly    D. sail

8. He often travels ___________his car.  ( by/on/ fly/ in) 

9. By the middle of the 21st century, people in developing countries____ more renewable energy.

10. Alternative sources of energy ____________ developed in the near future.

VI . Read , answer the questions . Fossil fuels are non - renewable energy sources . They include oil , coal , and natural gas . They can be used to create energy , generate electricity , or drive big machinery . Unfortunately , they are harmful to the environment . Viet Nam still relies mostly on non renewable energy sources , however , hydro power is increasingly used here too . Hydro and nuclear power can generate a great deal of energy . They are renewable and plentiful . However , hydro power is limited because dams cannot be built in certain areas . Nuclear power can provide enough electricity for the world's needs , but it is dangerous . The sun and the wind are other alternative sources of energy . The wind turns turbines to make electricity . Solar power can be converted into electricity . It can be used to heat or cool our houses . Although there are some disadvantages , these alternative energy sources can offer abundant amounts of clean , safe electricity . They will be valued more and more in the future in Viet Nam . 1. How many types of energy sources are mentioned in the text ? 2. What are non - renewable energy sources 3. What is the disadvantage of hydro ? 4. What is the disadvantage of nuclear power ? 5. Why are the wind and the sun called alternative sources of energy ? 6. Will the wind and the sun be valued more and more in the future in Viet Nam ? VIII . Use suggested words write about how to save energy 1. Turn / all the lights / leave / room 2. Shut down / the computer , TV / other electrical stuff / you aren't using it 3. Not / leave / fridge door / open / cold air escapes and this use a lot of electricity . 4. Taking / a short shower / instead / a long bath can / help / save energy 5. We / should / prepare / meal / careful / turn / the stove . Let's begin with : Every day , we use much energy home . There are many things we can do at home save energy IX . Use the words given to write a paragraph about the film .. I / like / watch / different / films / but / the film / I like / most / Titanic . The film / about the sinking of the ship Titanic / its first voyage . Although the film / a sad ending / Critics / say / it / a must - see . I / think / Titanic / moving / the acting / excellent .

VI . Read , answer the questions . Fossil fuels are non - renewable energy sources . They include oil , coal , and natural gas . They can be used to create energy , generate electricity , or drive big machinery . Unfortunately , they are harmful to the environment . Viet Nam still relies mostly on non renewable energy sources , however , hydro power is increasingly used here too . Hydro and nuclear power can generate a great deal of energy . They are renewable and plentiful . However , hydro power is limited because dams cannot be built in certain areas . Nuclear power can provide enough electricity for the world's needs , but it is dangerous . The sun and the wind are other alternative sources of energy . The wind turns turbines to make electricity . Solar power can be converted into electricity . It can be used to heat or cool our houses . Although there are some disadvantages , these alternative energy sources can offer abundant amounts of clean , safe electricity . They will be valued more and more in the future in Viet Nam . 1. How many types of energy sources are mentioned in the text ? 2. What are non - renewable energy sources 3. What is the disadvantage of hydro ? 4. What is the disadvantage of nuclear power ? 5. Why are the wind and the sun called alternative sources of energy ? 6. Will the wind and the sun be valued more and more in the future in Viet Nam

Complete the sentences with the words from the box.

renewable/non-renewable/abundant/alternative/polluting/exhausted/fossil/available

1-Many of the Earth's natural resources are ....., which means they are available in limited quantily and can be used up.

2-Oil is a relatively ..... but is a non-renewable resource.

3-..... fuels, including coal, oil and natural gas, are currently the world's primary energy source.

4-..... resources are those which cannot be replaced once they are used up.

5-..... energy is any energy source that can replace fossil fuel.

6-Despite being the most ..... source, coal still plays an important role in the production of electricity.

7-Solar power from the sun is ..... as we won't "use up" all the sunlight from the sun.

8-Geother mal energy is non-polluting, but it not widely ..... .