For most people Britain’s bouncing economy, now growing at its fastest for three years, is cause for cheer. Not,【C1】________for

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问题     For most people Britain’s bouncing economy, now growing at its fastest for three years, is cause for cheer. Not,【C1】________for those who manage the country’s electricity power system. For them【C2】________growth means faster progress towards a critical situation. Ofgem, the energy regulator, has long【C3】________that the margin between peak electricity demand and【C4】________supply is falling. In June it said the margin would【C5】________from 14% in 2014 to just 4% in the winter of 2018, increasing the risk of blackouts【C6】________the weather turn cold or a power station or two【C7】________.
    Since that report Britain’s economy has grown fast. Ofgem’s assessment【C8】________that Britain would grow by about 1.6% in 2017. The Bank of England now【C9】________2.8% growth. This will【C10】________consumption. Over the past decade an increase in peak electricity demand of 0.5%【C11】________each additional percentage point of economic growth. John Feddersen of Aurora Energy Research thinks the capacity margin will therefore【C12】________to 2.6% by 2018 unless action is taken. That【C13】________into a one-in-seven chance of shortages, up from the one-in-twelve chance【C14】________was thought most likely last summer.
    Falling coal prices have kept Britain’s coal-fired power stations running at full【C15】________. That means many will have to close sooner than was【C16】________because European environ-mental laws【C17】________the total number of operating hours left to them. At the same time cheap coal has made electricity from gas un-competitive,【C18】________operators to put some gas-fired plants into long-term【C19】________. Renew-able capacity cannot yet make up the【C20】________.  
【C6】

选项 A、would
B、should
C、could
D、might

答案B

解析 空格所在句it said后面的宾语从句中的主句用情态动词would,并提到年份2018,可判断句中表述的是对未来的猜测,所以空格处应选能表示对于将来的假设,并具有倒装用法的情态动词,B项should符合要求,相当于if the weather should turn cold。对将来的虚拟,从句的谓语用should do或were to do,主句的谓语用would/should/could/night do.所以从语法的角度看,A项would、C项could和D项might都不符合。
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