Save Energy at Home

　　On the average，Americans waste as much energy as twothirds of the worlds population consumes Thats largely the of driving inefficient Cars，using inefficient appliances，and living and working in poorly insulatedbuildings.Then what canyou do to the situation?

　　Buy energy-efficient productsBuy new appliances or electronics of the highest energyefficiency rating.New energy-efficient models may cost more initially，but have a lowerOperating over their lifetimes The most energyefficient modelsthe Energy Star label，which identifies products use 20-40 percent less energy than standard new products According to the EPA，the typical American household Can save about$400 per year in bills with products that carry the Energy StarSwitch to compact fluorescent bulbs-Change the three bulbs you use in your house to compact fluorescents Each compact fluorescent bulb willkeep half a ton of CO2 out of the air its 1ifetime. ，compactfluorescent bulbs last ten times as long and Can save$30 per year in electricity costs.

　　Set heating and cooling temperatures correctlyCheck thermostatsin your home to make sure they areat a level that doesnt waste energy

　　Turn off the lights Turn off lights and other electrical appliances such as televisions and radios when youre notthem.Install automatic timers for lights that people in your house frequently to turn them off when leaving a room.Let the sun shine inThe cheapest and most energy--efficient light and heat source isoften right outside your window.On days，open blindsto let the sun light your home for free.Also remember that entering a room equals passive solar heating.Even on cold winter days，sun streaming into a room can raise the temperature by several .

　　51 A power

　　B result

　　C way

　　D work

　　S2 A improve

　　B create

　　C face

　　D explain

　　53 A speed

　　B system

　　C cost

　　D profit

　　54 A carry

　　B bring

　　C take

　　D give

　　55 A where

　　B while

　　C that

　　D since

　　56 A phone

　　B water

　　C food

　　D energy

　　57 A less

　　B most

　　C rarely

　　D seldom

　　58 A about

　　B with

　　C on

　　D over

　　59 A Moreover

　　B However

　　C Therefore

　　D so

　　60 A correct

　　B turned

　　C set

　　D reduced

　　6l A covering

　　B using

　　C repairing

　　D leaving

　　62 A want

　　B have

　　C try

　　D forget

　　63 A bright

　　B rainy

　　C foggy

　　D dark

　　64 A air

　　B rain

　　C wind

　　D sunlight

　　65 A 1ayers

　　B levels

　　C degrees

　　D points

　　Save Energy at Home

　　On the average，Americans waste as much energy as twothirds of the worlds population consumes Thats largely the of driving inefficient Cars，using inefficient appliances，and living and working in poorly insulatedbuildings.Then what canyou do to the situation?

　　Buy energy-efficient productsBuy new appliances or electronics of the highest energyefficiency rating.New energy-efficient models may cost more initially，but have a lowerOperating over their lifetimes The most energyefficient modelsthe Energy Star label，which identifies products use 20-40 percent less energy than standard new products According to the EPA，the typical American household Can save about$400 per year in bills with products that carry the Energy StarSwitch to compact fluorescent bulbs-Change the three bulbs you use in your house to compact fluorescents Each compact fluorescent bulb willkeep half a ton of CO2 out of the air its 1ifetime. ，compactfluorescent bulbs last ten times as long and Can save$30 per year in electricity costs.

　　Set heating and cooling temperatures correctlyCheck thermostatsin your home to make sure they areat a level that doesnt waste energy

　　Turn off the lights Turn off lights and other electrical appliances such as televisions and radios when youre notthem.Install automatic timers for lights that people in your house frequently to turn them off when leaving a room.Let the sun shine inThe cheapest and most energy--efficient light and heat source isoften right outside your window.On days，open blindsto let the sun light your home for free.Also remember that entering a room equals passive solar heating.Even on cold winter days，sun streaming into a room can raise the temperature by several .

　　51 A power

　　B result

　　C way

　　D work

　　S2 A improve

　　B create

　　C face

　　D explain

　　53 A speed

　　B system

　　C cost

　　D profit

　　54 A carry

　　B bring

　　C take

　　D give

　　55 A where

　　B while

　　C that

　　D since

　　56 A phone

　　B water

　　C food

　　D energy

　　57 A less

　　B most

　　C rarely

　　D seldom

　　58 A about

　　B with

　　C on

　　D over

　　59 A Moreover

　　B However

　　C Therefore

　　D so

　　60 A correct

　　B turned

　　C set

　　D reduced

　　6l A covering

　　B using

　　C repairing

　　D leaving

　　62 A want

　　B have

　　C try

　　D forget

　　63 A bright

　　B rainy

　　C foggy

　　D dark

　　64 A air

　　B rain

　　C wind

　　D sunlight

　　65 A 1ayers

　　B levels

　　C degrees

　　D points