【单选题】
SaveEnergyAt Home
On the average,Americans waste as much energy as two-thirds of the world’s population consumes. That’s largely the (1) 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 (2) 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 (3) over their lifetimes. The most energy-efficient models (4) theEnergy Star label, which identifies products (5) use 20-40 percent less energy than standard new products.According to theEPA、美国环境保护署), the typicalAmerican household can save about $400 per year in (6) bills with products that carry theEnergy Star.
Switch to compact fluorescent bulbs (荧光灯)—Change the three bulbs you use (7) in your house to compact fluorescents.Each compact fluorescent bulb will keep half a ton ofCO2 out of the air (8) its lifetime. (9) , 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 (温度自动调节器) in your home to make sure they are (10) 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 (11) them. Install automatic timers for lights that people in your house frequently (112) 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 (13) days, open blinds (百叶窗) to let the sun light your home for free.Also remember that (14) entering a room equals passive solar heating.Even on cold winter days, sun streaming into a room can raise the temperature by several (15) .
A．less B．most C．rarelyD．seldom
网考网参考答案：B
网考网解析：
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On the average,Americans waste as much energy as two-thirds of the world’s population consumes. That’s largely the (1) 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 (2) 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 (3) over their lifetimes. The most energy-efficient models (4) theEnergy Star label, which identifies products (5) use 20-40 percent less energy than standard new products.According to theEPA、美国环境保护署), the typicalAmerican household can save about $400 per year in (6) bills with products that carry theEnergy Star.
Switch to compact fluorescent bulbs (荧光灯)—Change the three bulbs you use (7) in your house to compact fluorescents.Each compact fluorescent bulb will keep half a ton ofCO2 out of the air (8) its lifetime. (9) , 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 (温度自动调节器) in your home to make sure they are (10) 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 (11) them. Install automatic timers for lights that people in your house frequently (112) 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 (13) days, open blinds (百叶窗) to let the sun light your home for free.Also remember that (14) entering a room equals passive solar heating.Even on cold winter days, sun streaming into a room can raise the temperature by several (15) .
A．less B．most C．rarelyD．seldom
网考网参考答案：B
网考网解析：
暂无解析 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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