IV.       Read and choose the correct word in the box to fill in the blank. There is an extra word. There are three major forms of fossil fuels: coal, oil and natural gas. All three were formed many hundreds of millions of years ago before the time of the dinosaurs  – (26)               , we call them fossil fuels.

Fossil fuels (27)                 millions of years to make. But they are not unlimited. We are using up the fuels that were made more than 300 million years ago. They are not (28)    _like solar power, wind power, hydro power or biomass. Once they are gone they are gone. So, it’s best not to waste fossil fuels.

We can save fossil fuels (29)              _conserving energy. One simple way to do this is to turn off appliances, TVs and radios that we are not using. We can also turn off lights when no one is in the room. Another way is to go by bike or walk instead of (26) cars or motorbikes.

IV. Read and choose the answer.

                                        FOSSIL FUELS

The sun’s energy is stored in coal, natural gas, water and wind. Coal, oil and natural gas are known as fossil fuels. Fossil fuels were formed over millions of years when the remains and fossils of prehistoric plants and animals sank to the bottom of swamps and oceans.

We use the energy in these fossils fuels to make electricity. We use electricity in many different  ways. We light and heat our homes, schools and businesses using electricity, and to run computers, refrigerators, washing machines and air conditioners. Our cars and planes run on gasoline, which comes from oil. As of the year 2013, most of the energy we use comes from fossil fuels.
1. Where is the sun’s energy stored?

__________________________________________________________________________

2. What is the example of fossil fuels?

__________________________________________________________________________

3. Where do we get most of electricity from?

__________________________________________________________________________

4. What do we use electricity for? 

__________________________________________________________________________

5. Where does gasoline some from?

__________________________________________________________________________

III. Read the passage carefully and choose the best answer (5 points).

      Almost all our energy comes from oil, coal, and natural gas. We call them fossil fuels. The earth’s fossil fuels are running out. What will happen when there is no oil, coal and gas on the earth?

      Scientists are trying to find and use other alternative sources of energy. We can use energy from the sun, the wind, and the water.

      Solar energy is unlimited. The sun supplies all the energy used to grow plants, to evaporate water for rain, and to maintain the temperate of the planet. All are necessary for human life. If we are able to collect solar energy, we will be sure to have        this abundant source od power.

      1.   From which do plants on the earth get energy?

            A. stars                 B. the Mars          C. the moon         D. the sun

      2.   What are the other words or phrase for fossil fuels?    

            A. natural gas      B. oil                     C. coal                  D. oil, gas, natural gas

      3.   Natural sources of energy are energy from                      .

            A. wind                B. the sun             C. water                D. the sun, wind, water

      4.   The word “abundant” in the passage is closet in meaning with                       .

            A. plentiful          B. limited             C. natural             D. necessary

      5.   We are asking the question, “What will happen when there is no oil, coal, and gas on the earth?” because                      .

            A. we are now depending so much on oil, coal, and natural gas         

            B. other sources of energy can come from the sun, wind, and water

            C. we are looking forward to seeing great changes

            D. we are looking for other alternative sources of energy

Almost all our energy comes from oil, coal, and natural gas. We call them fossil fuels. The earth’s fossil fuels are running out. What will happen when there is no oil, coal and gas on the earth? Scientists are trying to find and use other alternative sources of energy. We can use energy from the sun, the wind, and the water. Solar energy is unlimited. The sun supplies all the energy used to grow plants, to evaporate water for the rain, and to maintain the temperature of the planet. All are necessary for human life. If we are able to collect solar energy, we will be sure to have this abundant source of power.

66.What are the other words or phrase for fossil fuels?

A. oil                       B. oil, gas, natural gas         C. natural gas                      D. coal

67.Natural sources of energy are energy from      .

A. the sun, wind, water                                      B. water                              C. wind                   D. the sun

68.From which do plants on the earth get energy?

A. the moon            B. the sun                           C. stars                              D. the Mars

69.We are asking the question, “What will happen when there is no oil, coal, and gas on the earth?” because           .

A. we are looking for other alternative sources of energy                                 B. we are looking forward to seeing great changes

C. we are now depending so much on oil, coal, and natural gas

D. other sources of energy can come from the sun, wind, and water

70.The word “abundant” in the passage is closest in meaning with            .

A. natural                B. necessary                       C. plentiful                          D. Limited

Almost all our energy comes from oil, coal, and natural gas. We call them fossil fuels. The earth’s fossil fuels are running out. What will happen when there is no coal, oil and gas on earth? Scientists are trying to find and use other alternative sources of energy. We can use energy from the sun, the wind, and the water. Solar energy is unlimited. The sun supplies all the energy used to grow plants, to evaporate water for rain, and to maintain the temperature of the planet. All are necessary for human life. If we are able to collect solar energy, we will be sure to have this abundant source of power. Another source of energy from nature is the wind which is clean and plentiful. Energy from the wind has been used for centuries to move ships, grind grain, pump water and do other forms of work. In recent time, wind has been used to generate electricity. Water can also provide power. For a long time, people have used water to power machines. Some early uses of water were to mill grain, saw wood and power machinery for the textile industry. Today water is mostly used to generate electricity. 28. The fossil fuels on earth are ....................... A. unlimited B. being used up C. renewable D. not uesd now 29. Solar energy means the power from the ............................. A. fossil fuel B. temperature C. electricity D. sun 30. The word “abundant” in the passage is closest in meaning to ............................ A. necessary B. limited C. plentiful D. natural 31. Centuries ago, people used wind power to ........................... A. get water from underground B. grow plants C. maintain the earth’s temperature D. generate electricity 32. Nowadays water energy is mainly used to ................................ A. power machine B. mill grain C. saw wood D. generate electricity

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IV. Read the passage, and choose the correct answer A, B, C or D for each question

. Almost all our energy comes from oil, coal, and natural gas. We call them fossil fuels. The earth’s fossil fuels are running out. What will happen when there is no oil, coal and gas on the earth? Scientists are trying to find and use other alternative sources of energy. We can use energy from the sun, the wind, and the water. Solar energy is unlimited. The sun supplies all the energy used to grow plants, to evaporate water for rain, and to maintain the temperate of the planet. All are necessary for human life. If we are able to collect solar energy, we will be sure to have this abundant source od power.

1. From which do plants on the earth get energy?

A. stars B. the Mars C. the moon D. the sun

2. What are the other words or phrase for fossil fuels?

A. natural gas B. oil C. coal D. oil, gas, natural gas

3. Natural sources of energy are energy from .

A. wind B. the sun C. water D. the sun, wind, water

4. The word “abundant” in the passage is closet in meaning with .

A. plentiful B. limited C. natural D. necessary

5. We are asking the question, “What will happen when there is no oil, coal, and gas on the earth?” because . A. we are now depending so much on oil, coal, and natural gas

B. other sources of energy can come from the sun, wind, and water

C. we are looking forward to seeing great changes

D. we are looking for other alternative sources of energy

Almost all our energy comes from oil, coal, and natural gas. We call them fossil fuels. The earth’s fossil fuels are running out. What will happen when there is no coal, oil and gas on earth?

Scientists are trying to find and use other alternative sources of energy. We can use energy from the sun, the wind, and the water.

Solar energy is unlimited. The sun supplies all the energy used to grow plants, to evaporate water for rain, and to maintain the temperature of the planet. All are necessary for human life. If we are able to collect solar energy, we will be sure to have this abundant source of power.

1. From which do plants on the earth get energy?

A. Stars

B. The Mars

C. The moon

D, The sun

2. What are the other words or phrase for fossil fuels?

A. Natural

B. Oil

C. Coal

D. Oil, gas, natural gas

3. Natural sources of energy are energy from..............

A. Wind

B. The sun

C. Water

D. The sun, wind, water

4. The word "abundant" in the passage is closet in meaning with............

A. Plentiful

B. Limited

C. Natural

D. Necessary

Exercise 2: Read a passage about fossil fuels. Decide if the statements are true (T) or false (F). Circle T or F.

There are three major forms of fossil fuels: coal, oil and natural gas. All three were formed many hundreds of millions of years ago before the time of the dinosaurs – therefore we call them fossil fuels.

Fossil fuels take millions of years to make. But they are not unlimited. We are using up the fuels that were made more than 300 million years ago. They are not renewable like solar power, wind power, hydro power or biomass. Once they are gone they are gone. So, it’s best not to waste fossil fuels.

We can save fossil fuels by conserving energy. One simple way to do this is to turn off appliances, TVs and radios that we are not using. We can also turn off lights when no one is in the room. Another way is to go by bike or walk instead of driving cars or motorbikes.

1. Three major forms of fossil fuels are oil, coal and natural gas.

2. They were formed right after the time of dinosaurs.

3. Once fossil fuels are gone, they will come back later.