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
【C6】
选项
答案L
解析 空格位于said后面的宾语从句中，从句缺少主语成分，故应填入名词作主语。因前两段都在讨论二氧化碳排放量增多的问题，根据语义推理，此处内容为：政府官员说，考虑到经济的改善，这种增加也就不那么特别令人惊讶了，故空格处应填入increase“增加”。备选的名词中，accumulation“积累”，一般指知识、经验、资金等的积累；emissions“排放”为复数形式，与was主谓不一致；energy“能源”，均不符合文意，故排除。
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大学英语四级

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