There are different forms of energy (1)_____ heat energy, sound energy, light energy, electric energy and so on.

Energy can be transformed from one into another in different ways. For example, electric energy becomes (2)_____ energy in the radio set or become light energy in the TV set. But energy can neither be finished off nor be produced. 

It is important for us to make use of energy. Expanding gases can be used to run a machine or to make airplane (4)_____ in the air. Heat from the sun and water power can be controlled. And atomic energy can be used to do many things. We are now doing our best in making use of energy in our (5)_____ construction.

Câu 1: A. like B. such as C. such D. as

Câu 2: A. light B. sound C. atomic D. heat

Câu 3: A. preservation B. Conservation C. protection D. formation

Câu 4: A. fly B. to fly C. flying D. flies

Câu 5: A. national B. nationalize C. nation D. nationally

Read the passage and choose the correct answer

There are different forms of energy (1)_____ heat energy, sound energy, light energy, electric energy and so on.

Energy can be transformed from one into another in different ways. For example, electric energy becomes (2)_____ energy in the radio set or become light energy in the TV set. But energy can neither be finished off nor be produced. This is called the law of (3)_____ of energy.

It is important for us to make use of energy. Expanding gases can be used to run a machine or to make airplane (4)_____ in the air. Heat from the sun and water power can be controlled. And atomic energy can be used to do many things. We are now doing our best in making use of energy in our (5)_____ construction.

Câu 1:     A. like           B. such as                      C. such                D. as

Câu 2:     A. light         B. sound                       C. atomic             D. heat

Câu 3:     A. preservation   B. Conservation      C. protection       D. formation

Câu 4:     A. fly            B. to fly                         C. flying              D. flies

Câu 5:     A. national    B. nationalize                C. nation             D. nationally

Mark the letter A, B, C or D on your answer sheet to show the underlinedpart that needs correction in each of the following questions.

Energy exists in different forms, such as light, heat, and chemical, mechanic, and electrical energy.

A.  In

B. Forms

C. Mechanic

D. Electrical

VII. There is one mistake in each sentence. Find and correct it.
1. The burning of fossil fuels is harmful for the environment and public health.
2. Solar energy can convert into other forms of energy, such as heat and electricity.
3. Solar power is by far the more popular renewable energy source.
4. Within ten years, people will be used less fossil fuel and more renewable energy.
5. Using solar energy instead fossil fuels can help reverse the effects of global warming.
6. Many people living in rural areas use biogas to cook, and heating.
7. Wind power is clean, abundant, widely available, and environmental friendly.
8. One of the ways you can save energy in your home are to use energy saving light bulbs.

giải thích với aaa

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.

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 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 of them. 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.

Question 2: There is a large amount of non-renewable energy.

A. True

B. False

C. Not Given

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.

Geothermal energy is natural heat from the interior of the Earth that is converted to heat buildings and generate electricity. The idea of harnessing Earth’s internal heat is not new. As early as 1904 , geothermal power was used in Italy . Today, Earth’s natural internal heat is being used to generate electricity in 21 countries , including Russia, Japan, New Zealand, Iceland, Mexico, Ethiopia, Guatemala, EI Salvador, the Philippines, and the United States .Total worldwide production is approaching 9,000 MW (equivalent to nine large modern coal-burning or nuclear power plants)-double the amount in 1980 .Some 40 million people today receive their electricity from geothermal energy at a cost competitive with that of other energy sources. In EI Salvador , geothermal energy is supplying 30% of the total electric energy used. However, at the global level, geothermal energy supplies less than 0,15%of the total energy supply.

Geothermal energy may be considered a nonrenewable energy source when rates of extraction are greater than rates of natural replenishment. However, geothermal energy has its origin in the natural heat production within Earth , and only a small fraction of the vast total resource base is being utilized today. Although most geothermal energy production involves the tapping of high heat sources, people are also using the low-temperature geothermal energy of groundwater in some applications.

What is true about geothermal energy production worldwide?

A. Because it is a new idea, very few countries are geothermal energy sources

B. Only countries in the Southern Hemisphere are using geothermal energy on a large scale 

C. Until the cost of geothermal energy becomes competitive, it will not be used globally

D. Geothermal energy is already being used in a number of nations, but it is not yet a major source of power

Read the passage and check (ü) whether the following statements are true (T) or false (F).

Energy makes change; it does things for us. It moves cars along the road and boats over the water. It bakes a cake in the oven and keeps ice frozen in the freezer. It plays our favourite songs on the radio and lights our homes. Energy makes our bodies grow and allows our minds to think. Scientists define energy as the ability to do work. People have learned how to change energy from one from one form to another so that we can do work more easily and live more comfortably.

All forms of energy are stored in different ways, in the energy sources that we use every day. These sources are divided into two groups – renewable and nonrenewable. Renewable energy source is an energy source that can be replenished in a short period of time. Nonrenewable energy source is an energy source that we are using up and cannot recreate in a short period of time.

Renewable energy sources include solar energy, which comes from the Sun and can be turned into electricity and heat. Wind, geothermal energy from inside the Earth, biomass from plants, and hydropower and ocean energy from water are also renewable energy sources.

However, we get most of our energy from nonrenewable energy sources, which include the fossil fuels – oil, natural gas, and coal. They’re called fossil fuels because they were formed over millions and millions of years by the action of heat from the Earth’s core and pressure from rock and soil on the remains of dead plants and animals. Another nonrenewable energy source is the element uranium, whose atoms we split (through a process called nuclear fission) to create heat and ultimately electricity.

Question: Renewable energy can be turned into electricity and heat.

A. True

B. False

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 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 of them. 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.

Decide if the following statements are True or False or Not Given according to the text.

Question. There is a large amount of non-renewable energy.

A. True

B. False

C. Not Given