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1. sun/ effective/ source/ power

=> The sun is an effective source of power

2. it/ be /cheap

=> It is cheap.

3. it/ be/ clean

=> It is clean.

4. it/ not cause/ pollution

=> It doesn't cause pollution.

5. solar panels/ be installed/ roof/ house/ receive/ energy/ the sun

=> Solar panels are installed on the roof of the house to receive energy from the sun.

6.it/ can/ store/ a number of days

=> It can be stored for a number of days.

7. it/ be used/ cloudy days

=> It can be used on cloudy days.

8. solar energy/ provide / enough power/ world's population

=> Solar energy provide enough power for world's population.

9. we/ save / natural resources/ use / solar energy/ instead/ gas , oil and coal

=> We should save natural resources and use solar energy instead of gas, oil and coal.

10. there for lot countries/ world / already / use / solar energy

=> There are lots of countries in the world already used solar energy.

1. sun/ effective/ source/ power

=> The sun is an effective source of power

2. it/ be /cheap

=> It is cheap.

3. it/ be/ clean

=> It is clean.

4. it/ not cause/ pollution

=> It doesn't cause pollution.

5. solar panels/ be installed/ roof/ house/ receive/ energy/ the sun

=> Solar panels are installed on the roof of the house to receive energy from the sun.

6.it/ can/ store/ a number of days

=> It can be stored for a number of days.

7. it/ be used/ cloudy days

=> It can be used on cloudy days.

8. solar energy/ provide / enough power/ world's population

=> Solar energy provide enough power for world's population.

9. we/ save / natural resources/ use / solar energy/ instead/ gas , oil and coal

=> We should save natural resources and use solar energy instead of gas, oil and coal.

10. there for lot countries/ world / already / use / solar energy

=> There are lots of countries in the world already used solar energy.

1. For a long time / people / use / water / power machines

For a long time people have used water to power machines

2. Solar panels / place / the roof / a house / and / sun's energy / use / heat water

Solar panels are placed on the roof of a house and the sun's energy is used to heat water

3. We / use energy / the sun, the wind, and the water

We use energy from the sun, the wind, and the water

4. Many countries / already using / solar energy

Many countries have already been using solar energy

5. The earth's fossil fuels / running out

The earth's fossil fuels are running out

6. We / looking / cheap, clean, effective source / energy / not cause pollution or waste natural resource

We are looking for a cheap, clean, effective source of energy that does not cause pollution or waste natural resource

7. Recently / wind / use / generate electricity

Recently wind has used to generate electricity

8. The sun / supply / all energy / used / grow plants / evaporate water / rain / and / maintain / temperature / planet

The sun supplies all energy used to grow plants and to evaporate water for rain and to maintain tenperature of the planet

9. At present / most / our electricity / come / use / coal, gas, oil or nuclear power

At present, most of our electricity comes from the use of coal, gas, oil or nuclear power

Bài 1:Use the given words to make meaningful sentences:

1. For a long time / people / use / water / power machines

For a long time people have used water to power machines

2. Solar panels / place / the roof / a house / and / sun's energy / use / heat water

Solar panels are placed on the roof of a house and the sun's energy is used to heat water

3. We / use energy / the sun, the wind, and the water

We use energy from the sun, the wind, and the water

4. Many countries / already using / solar energy

Many countries have already been using solar energy

5. The earth's fossil fuels / running out

The earth's fossil fuels are running out

6. We / looking / cheap, clean, effective source / energy / not cause pollution or waste natural resource

We are looking for a cheap, clean, effective source of energy that does not cause pollution or waste natural resource

7. Recently / wind / use / generate electricity

Recently wind has used to generate electricity

8. The sun / supply / all energy / used / grow plants / evaporate water / rain / and / maintain / temperature / planet

The sun supplies all energy used to grow plants and to evaporate water for rain and to maintain tenperature of the planet

Bài 1:Use the given words to make meaningful sentences

1.For a long time/people/use water/power machines

=> For a long time, people have used water to power machines.

2.Solar panels/pace/the roof/a house/and/sun's energy/use/heat water

=> Solar panels are placed on the roof of a house and the sun's energy is used to heat water.

3.We/use/energy/the sun,the wind and the water

=> We can use energy from the sun, the wind, and the water.

4.Many countries/already using/solar energy

=> Many countries have already been using solar energy.

5.The earth's fossil fuels/running out

=> The earth's fossil fuels are running out.

6.we/looking/cheap,clean,effective source/energy/not cause pollution or waste natural resources

=> we are looking for a cheap, clean, effective source of energy that does not cause pollution or waste natural resources

7.recently/wind/use/generate electricity

=> Recently wind has been used generate electricity.

8.the sun/supply/all energy/used/grow plants/evaporate water/rain/and/maintain/temperature/planet

=> The sun supplies all the enery used to grow plants, to evaporate water for rain and to maintain temperature of the planet.

Đáp án là B.

Đáp án là C.

Đáp án là A.

Đáp án là C.

Đáp án là D.