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 suitable word from the box :

avoid ; invested ; generate ; reduce ; converted .

1. Solar power can be ..... into electricity.

2. Fossil fuels can be used to ......electricity or drive big machinery.

3. Use electricity economically so that we can .......our electricity bills .

4. We should .............using cars or motorbikes for short trips.

5. Businesses have ......more money in renewable energy in recent year .

Complete the sentences with the suitable word from the box.

avoid invested generate reduce converted

36. Solar power can be ____________________ into electricity.

37. Fossil fuels can be used to___________________ electricity or drive big machinery.

38. Use electricity economically so that we can___________________ our electricity bills.

39. We should _______________________ using cars or motorbikes for short trips.

40. Businesses have _______________________ more money in renewable energy in recent years.

Read the text then answer the questions. (Đọc và trả lời câu hỏi)

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

5.What does the professor think Viet Nam will use more in the future?

Đọc và trả lời câu hỏi

​Fossil fuels are non -renewable energy soircecs.They include oil,coal,and natutal 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.

​1)What are non-renewable energy sources?

​2)What can non-renewable energy soirces be used?

​3)Why is hydro power limited?

​4)Can nuclear power provide enought electricity for the world´s needs?

​5)What are other alternative sousces of energy?​​

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.

Today we take electricity for granted and perhaps we do not realize just how useful this discovery has been. Steam was the first invention that replaced wind power. It was used to drive engines and was passed through pipes and radiators to warm rooms. Petrol mixed with air was the next invention that provided power. Exploded in a cylinder, it drove a motor engine. Beyond these simple and direct uses, those forms have not much adaptability.

On the other hand, we make use of electricity in thousands of ways. From the powerful voltages that drive our electric trains to the tiny current needed to work a simple calculator, and from the huge electric magnet in steel works that can lift 10 tons to the tiny electric magnet in a doorbell, all are powered by electricity. An electric current can be made with equal ease to heat a huge mass of molten metal in a furnace, or to boil a jug for a cup of coffee.

Other than atomic energy, which has not as yet been harnessed to the full, electricity is the greatest power in the world. It is flexible, and so adaptable for any task for which it is wanted. It travels so easily and with incredible speed along wires or conductors that it can be supplied instantly over vast distances.

To generate electricity, huge turbines or generators must be turned. In Australia they use coal or water to drive this machinery. When dams are built, falling water is used to drive the turbines without polluting the atmosphere with smoke from coal.

Atomic power is used in several countries but there is always the fear of an accident. A tragedy once occurred at Chernobyl, in Ukraine, at an atomic power plant used to make electricity. The reactor leaked, which caused many deaths through radiation.

Now scientists are examining new ways of creating electricity without harmful effects to the environment. They may harness the tides as they flow in and out of bays. Most importantly, they hope to trap sunlight more efficiently. We do use solar heaters for swimming pools but as yet improvement in the capacity of the solar cells to create more current is necessary. When this happens, electric cars will be viable and the world will rid itself of the toxic gases given off by trucks and cars that burn fossil fuels

Which of the following power sources causes pollution by emitting harmful gases? 

A. Sunlight 

B. Petrol 

C. Water 

D. Wind