There are two main ways to save energy. The first is to use more efficient machines. Hybrid cars use less gas. New appliances are designed to use less electricity. Today's refrigerators are three times more efficient than those before 1973. Laptop computers consume much less energy than desktop computers.
The second is to use machines more productively. According to the US Department of Energy, in the average home, 75% of the electricity used to power electronic equipment is standby power (备用电源) . That means power flowing to plugged-in appliances whether or not they are being used.
Homeowners can avoid wasting power by pulling the plug on appliances when they are not in use. Efficiency experts argue that today's best techniques could cut US oil and gas use in half, and reduce our electricity use by three-fourths.
4. The underlined word "pledged" in Paragraph 3 probably means ______ .
A. promised
B. wondered
C. reminded
D. attempted
5. By referring to Obama's plan, the author mainly intended to say that _____.
A. the US government office buildings have wasted the most energy
B. Obama has decided to take the lead to cut down the use of electricity
C. it is time for the US to shoulder the responsibility for a cleaner planet
D. the US is determined to improve energy efficiency in the whole America
【常熟市2014高考英阅读理解语一轮(暑假)训练题(7)及答案】相关文章:
★ 常熟市2014高考英阅读理解语一轮(暑假)训练题(1)及答案
★ 浙江省湖州市2014高考英语阅读理解一轮(暑假)精炼(3)含答案
★ 浙江省湖州市2014高考英语阅读理解一轮(暑假)精炼(16)含答案
★ 浙江省湖州市2014高考英语阅读理解一轮(暑假)精炼(1)含答案
★ 2017高考四川省广安市英语阅读理解一轮系列训练:18(含解析)
★ 常熟市2014高考英阅读理解语一轮(暑假)训练题(4)及答案
★ 浙江省湖州市2014高考英语阅读理解一轮(暑假)精炼(15)含答案
★ 浙江省湖州市2014高考英语阅读理解一轮(暑假)精炼(17)含答案
★ 浙江省湖州市2014高考英语阅读理解一轮(暑假)精炼(12)含答案
★ 浙江省湖州市2014高考英语阅读理解一轮(暑假)精炼(8)含答案
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21