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SAT官方每日一题附答案和解析[阅读](2018年9月21日)

来源:可可英语 编辑:max   VIP免费外教试听课 |  可可官方微信:ikekenet

Critical Reading>Select an Answer

At a time when partisanship seems to lead most every story in politics, it's worth highlighting a sweeping bipartisan push that's lasted four decades.

Presidents Richard Nixon, Gerald Ford, Jimmy Carter, Ronald Reagan, George H. Bush, Bill Clinton, George W. Bush, and Barack Obama have all made the same pledge to reduce our dependence on foreign oil. And yet at the end of each administration so far, imports have been higher than before.

The pledge seems to have meant little—until now. By the time President Obama leaves office, oil imports will be lower and this trend will continue. And to be fair, it's not all thanks to Obama.

Decreased dependence on foreign oil is the cumulative result of many events that set the stage for natural gas. Government policies since the 1970s funded advances in horizontal drilling and hydraulic fracturing (already available since the 1930s and 1950s respectively). Later, high gas prices provided market incentives to locate new wells on private lands utilizing these technologies. Most recently, the Energy Policy Act of 2005 excluded hydraulic fracturing from underground injection regulations. It's a rare instance in which markets, government, and technology worked together with a common goal. And succeeded.

As a result, the energy transition is now in play, but most people haven't noticed yet. In fact, Dr. Michael Webber, Deputy Director of the Energy Institute at The University of Texas at Austin, predicts natural gas will overtake petroleum as the dominant energy source in the U.S. within 10-20 years. Perhaps when this occurs and we finally achieve that famous political pledge to "reduce dependence on foreign oil," more Americans will recognize the significance of what's taking place.

The underlined sentence primarily serves to ________

A.identify the government policies that initially prompted a change in energy usage in the US.
B.shift the discussion to the factors that led to a decrease in US oil imports.
C.introduce the idea that the US has begun to reduce its use of foreign oil.
D.emphasize the length of time it has taken the US to find a viable alternative to natural gas.

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rare [rɛə]

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adj. 稀罕的,稀薄的,罕见的,珍贵的
ad

 
cumulative ['kju:mjulətiv]

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adj. 累积的,附加的

 
dependence [di'pendəns]

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n. 依赖,信赖,上瘾

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horizontal [.hɔri'zɔntl]

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adj. 水平的,横的
n. 水平线,水平面

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director [di'rektə, dai'rektə]

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n. 董事,经理,主管,指导者,导演

 
trend [trend]

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n. 趋势,倾向,方位
vi. 倾向,转向

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pledge [pledʒ]

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n. 保证,誓言,抵押,抵押品
vt. 保证,

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dominant ['dɔminənt]

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adj. 占优势的,主导的,显性的
n. 主宰

 
petroleum [pi'trəuliəm]

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n. 石油

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locate [ləu'keit]

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vt. 把 ... 设置在,使坐落于,找出
v

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