46. Many countries/ using/ solar energy.
A. Many countries are using the solar energy.
B. Many countries are using solar energy.
C. Many countries is using solar energy.
D. Many countries using the solar energy.
47. save/energy/one/best/way/conserve/natural/resources.
A. Saving energy is one of the best way to conserve natural resource.
B. To save energy are one of the best ways conserving natural resource.
C. To save energy are one of best ways to conserve natural resource.
D. Saving energy is one of the best ways to conserve natural resource.
48. most/ our electricity/ come/ use/ coal, gas, or oil.
A. Most our electricity come from using of coal, gas, or oil.
B. Most our electricity comes from using of coal, gas, or oil.
C. Most of our electricity are coming from the use of coal, gas, or oil.
D. Most of our electricity comes from the use of coal, gas, or oil

Read the passage and decide which statements are True (T) or False (F).
In Western countries, electricity, gas, and water are not luxuries but necessities. Companies now realize that consumers want products that will not only work effectively, but also save money.
For most North American households, lighting accounts for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by replacing an ordinary 100-watt light bulb with an energy-saving bulb. These bulbs use a quarter of the electricity of standard bulbs and last eight times longer. Therefore, consumers can save about US$7 to US$21 per bulb. In Europe, there is a labeling scheme for refrigerators, freezers, washing machines and tumble dryers. The label tells the consumers how much energy efficiency each model has, compared with other appliances in the same category. Ultimately, these innovations will save smoney as well as conserve the Earth's resources.

1. In Western countries, energy is cheap.
2. Consumers can save money by using energy-saving bulbs.
3. Labeling scheme is a good innovation which helps the European to save money and natural resources.
4. Ordinary 100-watt light bulbs use a quarter of the electricity of standard bulbs.
5. North American and European countries are interested in saving money and natural resources.

In Western countries, electricity, gas, and water are not luxuries but necessities. Companies now realize that consumers want products that will not only work effectively, but also save money.

For most North American households, lighting accounts for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by replacing an ordinary 100-watt light bulb with an energy-saving bulb. These bulbs use a quarter of the electricity of standard bulbs and last eieht times longer. Therefore consumers can save about US$7 to US$21 per bulb.

In Europe, there is a labeling scheme for refrigerators, freezers, washing machines and tumble dryers. The label tells the consumers how much energy efficiency each model has, compared with other appliances in the same category.

Ultimately, these innovations will save money as well as conserve the Earth's resources.

Answer the questions: Mrs. Jones uses only two ordinary bulbs and she pays US$8 for lighting. How much will she pay if she uses two energy-saving bulbs instead? (Giải thích rõ lí do nhá mn)

2. Read the Passage and decide which statements are True (T) or False (F).

In Western countries, electricity, gas, and water are not luxuries but

necessities. Companies now realize that consumers want products that

will not only work effectively, but also save money.

For most North American households, lighting accounts for 10 percent to 15 Percent of the electricity bill. However, this amount can be reduced by replacing an ordinary 100-watt light bulb with an energy-saving bulb. These bulbs use a quarter of the electricity of standard bulbs and last eight times longer. Therefore, consumers can save about US$7 to US$21 per bulb. In Europe, there is a labeling scheme for refrigerators, freezers, washing

machines and tumble dryers. The label tells the consumers how much energy efficiency each model has, compared with other appliances in the same category. Ultimately, these innovations will save money as well as conserve the Earth’s resources.

As the use of alternative energy sources increases, the consumption of the Earth's fossil fuels will also decrease. One watt of energy that is used by solar cells is one less watt used by power plants burning oil or coal. If society hopes to see the next generation have the resources needed to heat homes and drive cars, alternative energy sources are needed today.

Fossil fuel is the most common source of energy today, but it is not considered clean energy. There are various other sources of alternative energy that must be incorporated if the next generations are expected to have energy. Water, wind, the internal heat of the Earth, and the sun are all being used to create energy. Geothermal energy and solar energy are more common. Homes are being heated and cooled, cars are being driven, and electricity is used all from these various alternative sources of energy. All are examples of clean energy, which is better for the environment because it does not cause pollution.                                                                                             

Read the passage and decide if these statements are True or False.

As the use of alternative energy sources increases, the consumption of the Earth's fossil fuels will also decrease. One watt of energy that is used by solar cells is one less watt used by power plants burning oil or coal. If society hopes to see the next generation have the resources needed to heat homes and drive cars, alternative energy sources are needed today.

Fossil fuel is the most common source of energy today, but it is not considered clean energy. There are various other sources of alternative energy that must be incorporated if the next generations are expected to have energy. Water, wind, the internal heat of the Earth, and the sun are all being used to create energy. Geothermal energy and solar energy are more common. Homes are being heated and cooled, cars are being driven, and electricity is used all from these various alternative sources of energy. All are examples of clean energy, which is better for the environment because it does not cause pollution.

Read the passage and decide if these statements are True or False.

Invironmental .......... is every body's responsibility Proctect

Taxi drives have to a very good ....... on the street names Know

In the future , many builings will be ....... by solar energy Hot

My brother can repair electric ............ very well Apply

We want to buy ... that will save money Product

These ......... will conserve the earth's resourses ELECTRIC

People in the cuontryside is............ Friend

If it doesn't rain soon , there 'll be a great ........ of water Short