第6部分：完形填空 (第51～65題，每題1分，共1 5分)
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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(設(shè)備)，and living and working in poorly insulated(隔熱)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(美國(guó)環(huán)境保護(hù)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(熒光燈)-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 1ifetime. (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(溫度自動(dòng)調(diào)節(jié)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(百葉窗)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)．
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