2. 外语
  3. According to new government figures, pollution levels are rising again after several years of gradual decline. Data【C1】_____

According to new government figures, pollution levels are rising again after several years of gradual decline. Data【C1】_____

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问题     According to new government figures, pollution levels are rising again after several years of gradual decline.
    Data【C1】______Friday by the Energy Department show American factories and power plants putting more carbon dioxide into the atmosphere during the first six months of 2014 compared with the same period in each of the past two years. The figures【C2】______a reversal first seen in 2013, when the trend of steadily falling emissions【C3】______halted.
    The higher emissions are primarily a reflection of a【C4】______economy, as American businesses burned more gas and oil to meet higher demand. But the shift also highlights the challenge【C5】______the Obama administration as it seeks to honor a pledge to sharply cut U. S. emissions of greenhouse gases by the end of the decade.
    Administration officials said the【C6】______was not particularly surprising given the improving economy, and some pointed to one of the report’s bright spots: Even as the economy expanded, carbon【C7】______from automobiles have remained essentially flat, as more Americans switched to fuel-efficient cars and trucks.
    Some also cited another【C8】______trend in the report: Big jumps in the use of alternative and renewable【C9】______. Solar, wind and hydropower were up more than 7 percent compared with two years ago, according to the report, and renewable sources now【C10】______for nearly 12 percent of the country’s domestic energy production.
A)abruptly
B)account
C)accumulation
D)cited
E)confirm
F)confronting
G)emissions  
H)encouraging
I)energy
J)gradually
K)identify
L)increase
M)outstanding
N)recovering
O)released
【C9】
选项
答案I
解析 空格位于of所有格后，且有两个形容词修饰，故应填入名词。下一句指出，根据报告，太阳能、风能和水电的使用比两年前上升了7％以上，由此可推断前一句提到的是可替换、可再生的能源使用方面的大幅增加，故空格中应填入energy“能源”。
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大学英语四级

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