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  3. Save Energy At Home On the average, Americans waste as much energy as two-thirds of the world’s population consumes. That’s lar

Save Energy At Home On the average, Americans waste as much energy as two-thirds of the world’s population consumes. That’s lar

admin2009-06-15  24
问题                         Save Energy At Home
On the average, Americans waste as much energy as two-thirds of the world’s population consumes. That’s largely the(51)of driving inefficient cars, using inefficient appliances (设备), and living and working in poorly insulated (隔热) buildings. Then what can you do to(52)the situation?
Buy energy-efficient products -- Buy new appliances or electronics of the highest energy-efficiency rating. New energy-efficient models may cost more initially, but have a lower operating(53)over their lifetimes. The most energy-efficient models(54)the Energy Star label, which identifies products(55)use 20-40 percent less energy than standard new products. According to the EPA (美国环境保护署), the typical American household can save about $400 per year in(56)bills with products that carry the Energy Star.
Switch to compact fluorescent bulbs (荧光灯) -- Change the three bulbs you use(57)in your house to compact fluorescents. Each compact fluorescent bulb will keep half a ton of CO2 out of the air(58)its lifetime.(59), compact fluorescent bulbs last ten times as long and can save $30 per year in electricity costs.
Set heating and cooling temperatures correctly -- Check thermostats (温度自调节器) in your home to make sure they are(60)at a level that doesn’t waste energy.
Turn off the lights -- Turn off lights and other electrical appliances such as televisions and radios when you’re not(61)them. Install automatic timers for lights that people in your house frequently(62)to turn them off when leaving a room.
Let the sun shine in -- The cheapest and most energy-efficient light and heat source is often right outside your window. On(63)days, open blinds (百叶窗) to let the sun light your home for free. Also remember that(64)entering a room equals passive solar heating. Even on cold winter days, sun streaming into a room can raise the temperature by several(65).
选项 A、air
B、rain
C、wind
D、sunlight
答案D
解析
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