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When people speak of solar energy, they only think of sun’s rays heating a home or ________ electricity from the sun.

A.derive

B.to derive

C.deriving

D.of deriving.


参考答案

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考题 共用题干 第二篇Home HeatingCentral heating became popular only after the Civil War.Typically,coal-burning furnaces(火炉)fueled the early systems.Natural gas had developed into the leading fuel by 1960.Its acceptance resulted in part from its wide uses.Because it comes primarily from U.S.and Canadian fields , natural gas is also less vulnerable(脆弱的)than oil is to war.Oil remains the most important fuel in a few areas,such as New England.Electric heating dominates most areas with mild winters and cheap electricity,including the South and the Northwest.It was made popular at least in the South by the low cost of adding electric heating to new houses built with air-conditioning.Bottled gas,which is somewhat more expensive than utility gas,is the fuel of choice in rural areas not served by utility pipelines.Wood is the leading heating fuel in just a few rural counties.Home heating,which accounts for less than 7 per cent of all energy consumed in the U.S.,has had a commendable(值得赞扬的)efficiency record : from 1 978 to 1 997 , the amount of fuel consumed for this purpose declined 44 per cent despite a 33 per cent increase in the number of housing units and an increase in house size.TheU.S.Department of Energy,however,forecasts that energy used in home heating will rise by 14 per cent over the next two decades.That rise is small considering an expected 21 per cent increase in the number of houses and the trend toward larger houses.Natural gas and electricity will probably dominate the home heating market for the next two decades.Solar(太阳的)heating never became popular because of cost and limited winter sunlight in most areas;in 2000 only 47,000 homes relied on it.According to paragraph 3,energy consumed in home heating over the next two decades will increase byA:33 per cent.B:31 per cent.C:21 per cent.D:14 per cent.

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考题 共用题干 第二篇Home HeatingCentral heating became popular only after the Civil War.Typically,coal-burning furnaces(火炉)fueled the early systems.Natural gas had developed into the leading fuel by 1960.Its acceptance resulted in part from its wide uses.Because it comes primarily from U.S.and Canadian fields , natural gas is also less vulnerable(脆弱的)than oil is to war.Oil remains the most important fuel in a few areas,such as New England.Electric heating dominates most areas with mild winters and cheap electricity,including the South and the Northwest.It was made popular at least in the South by the low cost of adding electric heating to new houses built with air-conditioning.Bottled gas,which is somewhat more expensive than utility gas,is the fuel of choice in rural areas not served by utility pipelines.Wood is the leading heating fuel in just a few rural counties.Home heating,which accounts for less than 7 per cent of all energy consumed in the U.S.,has had a commendable(值得赞扬的)efficiency record : from 1 978 to 1 997 , the amount of fuel consumed for this purpose declined 44 per cent despite a 33 per cent increase in the number of housing units and an increase in house size.TheU.S.Department of Energy,however,forecasts that energy used in home heating will rise by 14 per cent over the next two decades.That rise is small considering an expected 21 per cent increase in the number of houses and the trend toward larger houses.Natural gas and electricity will probably dominate the home heating market for the next two decades.Solar(太阳的)heating never became popular because of cost and limited winter sunlight in most areas;in 2000 only 47,000 homes relied on it.Which of the following statements is NOT true,according to the article?A:Natural gas comes partly from Canadian fields.B:Bottled gas is more expensive than utility gas.C:Equipment for home heating has been considerably improved.D:Solar heating dominated America in 2000.

考题 共用题干 第二篇Home HeatingCentral heating became popular only after the Civil War.Typically,coal-burning furnaces(火炉)fueled the early systems.Natural gas had developed into the leading fuel by 1960.Its acceptance resulted in part from its wide uses.Because it comes primarily from U.S.and Canadian fields , natural gas is also less vulnerable(脆弱的)than oil is to war.Oil remains the most important fuel in a few areas,such as New England.Electric heating dominates most areas with mild winters and cheap electricity,including the South and the Northwest.It was made popular at least in the South by the low cost of adding electric heating to new houses built with air-conditioning.Bottled gas,which is somewhat more expensive than utility gas,is the fuel of choice in rural areas not served by utility pipelines.Wood is the leading heating fuel in just a few rural counties.Home heating,which accounts for less than 7 per cent of all energy consumed in the U.S.,has had a commendable(值得赞扬的)efficiency record : from 1 978 to 1 997 , the amount of fuel consumed for this purpose declined 44 per cent despite a 33 per cent increase in the number of housing units and an increase in house size.TheU.S.Department of Energy,however,forecasts that energy used in home heating will rise by 14 per cent over the next two decades.That rise is small considering an expected 21 per cent increase in the number of houses and the trend toward larger houses.Natural gas and electricity will probably dominate the home heating market for the next two decades.Solar(太阳的)heating never became popular because of cost and limited winter sunlight in most areas;in 2000 only 47,000 homes relied on it.Natural gas didn't become the leading fuel untilA:1978.B:1960.C:1997.D:2000.

考题 EI Village2中,检索式solar NEAR/5 energy,意味着()。A.solar和energy必须出现5次。B.solar和energy两个检索词不但要出现,而且两者之间最多允许插入5个单词,但先后顺序没有要求。C.solar和energy两个检索词不但要出现,而且两者之间最多允许插入5个单词,且solar在前,energy在后。D.solar和energy两个检索词不但要出现,而且两者之间最多允许插入5个单词,且energy在前,solar在后。