Talk about the advantages and disadvantages of sources of energy you know.
- What kind of the sources of energy? ( renewable or non - renewable)
- What are the advantages/ disadvantages of the sources of energy?
- What do you think people will use it more in the future?
3.Talk about types of energy sources
- Types of renewable sources and non-renewable sources
- Their advantages and disadvantage
- What you should do to save energy
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?
Hello students. Today I'd like to tell you some information about types and sources of energy. Energy is classified into two main groups: renewable and non-renewable.The energy generated from natural sources such as the sun, wind, rain, and tides is called renewable energy. They are plentiful and can be generated again and again. They also have low carbon emissions, so they are considered green and environment-friendly. Moreover, using renewable energy can reduce your electricity bills. Unfortunately, solar energy can be only used during the daytime but not during night or the rainy season. Geothermal energy also can bring toxic chemicals beneath the earth's surface to the top and can create environmental changes.
Non-renewable energy is the energy taken from other sources that are available on the earth. They are limited and will run out in the future. They can't be re-generated in a short time. Fossil fuels - natural gas, oil and coal - are examples. They are cheap and easy to use. However, when burnt, they release toxic gases in the air, so they cause serious environmental changes such as global warming. And the important thing is that non-renewable sources will expire someday.
71. How many main groups of energy sources are there?
A. 2 B. 3 C. 4 D. 5
72. What is NOT mentioned as a source of renewable energy?
A. solar B. wind C. coal D. tides
73. What is TRUE about renewable energy sources?
A. having high carbon emissions B. plentiful and can be generated again
C. environment-unfriendly D. always available
74.What are the features of non-renewable energy?
A. unlimited and run out in the future B. can be re-generated in a short time
C. expensive but easy to use D. limited and run out in the future
75. What is not an example of non-renewable energy sources?
A. oil B. solar C. natural gas D. coal
Write an essay about advantages and disadvantages of a typer of energy ( viết 1 bài luận về những lợi thế và bất lợi của 1 loại năng lượng ) .
BODY:
- first of all , using solar energy brings us many advantages
- there are many advantages of solar energy . first (1) , second(2) , more over (3) , .....
- using solar energy is very convenient and useful . however , it has certain disadvantages
1/Talking about obeying traffic rules/laws/ and how to use the road safely.
- What do these sign means?
- Should there be a traffic light sign at the school gate? Why?
2/ Talking about advantages and disadvantages of each type of energy source.
- What type of energy source is wind? (oil/ coal/ hydro/ nuclear)?
- What are its advantages and disadvantages?
HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
30. The sun and the wind are other _________ sources of energy.
A. alternative B. renewable C. non-renewable D. Nuclear
Write a short passage about the advantages and disadvantages of each type of energy sources.( viết một đoạn ngắn nói về việc thuận lợi và bất lợi của nguồn năng lượng nào đó)
We use many different energy sources to do work for us. Energy sources are classified into two groups -renewable and nonrenewable. Non-renewable energy sources are those that take millions of years to form and will run out some day. It is energy that comes from fossil fuels such as coal, crude oil, and natural gas. Fossil fuels are mainly made up of carbon and were formed millions of years ago. The chemical reaction which takes place when we burn fossil fuels releases carbon compounds such as carbon monoxide and carbon dioxide into the air. Carbon dioxide is one of the green house gases which is contributing to global warming and air pollution. On the other hand, renewable energy sources will never run out, are better for the environment and do not cause pollution. Renewable energy is often called green energy because it is a natural energy, always available and does not have to be formed like nonrenewable energy. The green energy is always there. For example, the Sun consistently shines, water is abundant, and the winds blow throughout the year. The five types include solar, energy from the Sun; geothermal, energy from heat within the Earth; hydroelectric, energy from moving water; biomass, energy from dead plants and microorganisms and finally, energy from the wind.
5. Are renewable sources bad for the environment?
6. Why is renewable energy called green energy?