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
【C2】
选项
答案E
解析 空格位于主语the figures和宾语a reversal之间，句中缺少谓语成分，且上下文使用了一般现在时，故应填入动词原形。上文提到，美国的工厂和电厂在2014年上半年比前两年同期向大气中排放了更多的二氧化碳，下文when引导的定语从句又说，2013年稳定下降的排放趋势停止了，说明排放出现逆转形势，也就是说，2014年排放量的上升证实了2013年排放量下降的停止，故空格处应填入confirm“证实，确认”。备选的动词中，account“占，解释”不符合文意，排除；identify一般指“确定，识别(身份等)”，不符合文意，排除。
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