2. 外语
  3. When we think of green buildings, we tend to think of new ones—the kind of high-tech, solar-paneled masterpieces that make the c

When we think of green buildings, we tend to think of new ones—the kind of high-tech, solar-paneled masterpieces that make the c

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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
【S1】
选项
答案G
解析 副词。很明显空格处需要一个副词来修饰后面的形容词wasteful，根据原文的意思，这里是说把老旧的房屋都拆掉换成更为绿色环保的房子是非常浪费的行为，因此应该选择incredibly，“难以置信地，非常地”，而不是doubtfully，“怀疑地，含糊地”。
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大学英语四级

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