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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、match
B、contest
C、conflict
D、competition
答案D
解析 词汇辨析题。本句为主从复合句，When引导的时间状语从句表示"当需求增加，而供给减少时"，主句表示在这种情况出现时可能导致的结果，依据常识，不难判断供少于求时，必然导致对该产品或物品的竞争加剧，因此正确选项是competition。match，contest和conflict虽然都有"比赛，竞赛"之意，但match尤指足球、棒球、篮球比赛；contest意为"竞赛"，尤指参赛者各自献技并由评判员进行评判的比赛；conflict用于指敌对组织的公开的战争或对立势力间的内部斗争。
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