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  3. American colleges and universities are using 64 percent less coal than they did a decade ago, burning 700,000 tons last year, do

American colleges and universities are using 64 percent less coal than they did a decade ago, burning 700,000 tons last year, do

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问题     American colleges and universities are using 64 percent less coal than they did a decade ago, burning 700,000 tons last year, down from 2 million tons in 2008, the U.S. Energy Information Administration (EIA) said in a report【C1】________yesterday.
    All 57 schools that were burning coal in 2008 are using less now, and 20 have【C2】________coal completely, EIA found.
    Most universities have turned to natural gas as a【C3】________, with state funding backing the fuel switch.
    While academic institutions use less than 0.1 percent of U.S. coal burned for power, campus coal use has a history dating back to the 1800s when【C4】________to power was scarce.
    Many universities still operate their own power plants. The Public Utility Regulatory Policies Act of 1978 encouraged more electricity generation by allowing institutions to sell【C5】________power to utilities.
    But EIA noted many coal-fired universities have signed onto the American College and University Presidents Climate Commitment, which was launched in 2007.
    About 665 schools are part of the program, which aims to【C6】________greenhouse gas emissions. Thirty percent of the participants have pledged to be carbon【C7】________within 20 years.
    The Sierra Club’s Beyond Coal campaign, which also leads campaigns for universities to withdraw their【C8】________in coal and other fossil fuels, lists 22 schools that have pledged to move "beyond coal," including Clemson University, Indiana University, Ohio University, Penn State University, the University of Louisville and the University of Tennessee, Knoxville.
    The largest coal use【C9】________at colleges were in Michigan, Missouri, Tennessee and Indiana. Indiana’s universities alone cut coal【C10】________by 81 percent between 2008 and 2015.
    During the same period, Michigan made an 80 percent cut and Tennessee cut back by 94 percent at state institutions.
    A) abandoned   E) duplications I) neutral    M) slash
    B) access      F) investments  J) reductions N) surplus
    C) consumption G) mobilized    K) released   O) void
    D) contrive    H) negligent    L) replacement
【C4】
选项
答案B
解析 空格位于when引导的从句中，该从句已有系表结构was scarce，故________to power应为名词短语作主语，且中心语为单数或不可数名词，access填入文中符合语境，表示“能获得电的机会很少”，也符合19世纪的情况。
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