When we think of green buildings, we tend to think of new ones—the kind of h

游客2024-02-16 42

问题    When we think of green buildings, we tend to think of new ones—the kind of high-tech, solar-paneled masterpieces that make the covers of architecture magazines. But the U. S. has more than 100 million existing homes, and it would be【S1】______ wasteful to tear them all down and 【S2】______ them with greener versions. An enormous amount of energy and resources went into the construction of those houses. And it would take an average of 65 years for the 【S3】______ carbon emissions from a new energy-efficient home to make up for the resources lost by destroying an old one. So in the broadest 【S4】______ , the greenest home is the one that has already been built. But at the same time, nearly half of U. S. carbon emissions come from heating, cooling and 【S5】______ our homes, offices and other buildings. "You can’t deal with climate change without dealing with the existing buildings," says Richard Moe, the president of the National Trust.
With some【S6】______ , the oldest homes tend to be the least energy-efficient-. Houses built before 1939 use about 50% more energy per square foot than those built after 2000, mainly due to the tiny cracks and gaps that 【S7】______ over time and let in more outside air.
Fortunately, there are a 【S8】______ number of relatively simple changes that can green older homes, from 【S9】______ ones like Lincoln’s Cottage to your own postwar home. And efficiency upgrades(升级) can save more than just the earth; they can help 【S10】______ property owners from rising power costs.

A) accommodations       B) clumsy          C) doubtfully          D) exceptions
E) expand                F) historic       G) incredibly          H) powering
I) protect             J) reduced          K) replace             L) sense
M) shifted             N) supplying       O) vast [br] 【S6】

选项

答案 D

解析名词。根据原文，这里应该填一个名词。名词选项有accommodations“居住，住宿”和exceptions“例外”，后文提到the oldest homes tend to be the least energy-efficient，根据题意应该选exceptions，这句话的意思是：除了一些例外，通常那些最古老的房屋是最不节省能源的。

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