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  3. Energy will be one of the defining issues of this century. One thing is clear: the era of easy oil is over. What we all do next

Energy will be one of the defining issues of this century. One thing is clear: the era of easy oil is over. What we all do next

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问题     Energy will be one of the defining issues of this century. One thing is clear: the era of easy oil is over. What we all do next will (1)_____ how well we meet the energy needs of the entire world in this century and (2)_____.
    Demand is (3)_____ like never before. As populations grow and economies take (4)_____ millions in the developing world are enjoying the (5)_____ of a lifestyle that requires increasing amounts of energy. (6)_____, some say that in 20 years the world will (7)_____ 40% more oil and gas fields are maturing. And new energy (8)_____ are mainly occurring in places where resources are difficult to (9)_____, physically, economically and even politically. When growing demand meets tighter supplies, the result is more (10)_____ for the same resources.
    We can wait (11)_____ a crisis forces us to do something. Or we can (12)_____ to working together, and start by asking the tough questions: How do we meet the energy needs of the developing world and those of (13)_____ nations? What role will renewables and (14)_____ energies play? What is the best way to protect our environment? How do we accelerate our conservation efforts? (15)_____ actions we take, we must look not just to next year, (16)_____ to the next 50 years.
    We believe that innovation, collaboration and conservation are the cornerstones (17)_____ which to build this new world. We cannot do this (18)_____. Corporations, governments and every citizen of this planet must be part of the solution (19)_____ surely as they are part of the problem. We call upon scientists and educators, politicians and policy-makers, environmentalists, leaders of industry and each one of you to be part of (20)_____ the next era of energy.

选项 A、beyond
B、after
C、behind
D、besides
答案A
解析 语义衔接题。该空格之前是in this century and，而空格之后并无其他词汇，由此可知该空格所填入词汇应与之前的时间"本世纪"并列，同为表示时间的概念；而且其后没有关联词，所以又可推知空格中应填入副词，选项中beyond可做副词，意为"later than"，故为答案。选项中after，besides就词义而言，显然不符合此处的语境。虽然behind也有"之后"的含义，而且同样也可用做副词，但它多用于表示地理方位的后面(如：The dog was running behind．)或是表示抽象意义的落后(如：Kathy was tired and fell behind)。
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