2. 考研
  3. Energy will be one of the defining issues of this century. One thing is clear: the era of (1)_____ oil is over. What we all do n

Energy will be one of the defining issues of this century. One thing is clear: the era of (1)_____ oil is over. What we all do n

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问题     Energy will be one of the defining issues of this century. One thing is clear: the era of (1)_____ oil is over. What we all do next will determine how well we meet the energy needs of the entire world in this century and (2)_____.
    Demand is soaring like (3)_____ before. As populations grow and economies (4)_____, millions in the developing world are enjoying the benefits of a lifestyle that (5)_____ increasing amounts of energy. In fact, some say that in 20 years the world will (6)_____ 40% more oil than it does today. At the same time, many of the world’s oil and gas fields are (7)_____. And new energy discoveries are mainly occurring in places where resources are difficult to (8)_____, physically, economically and even politically. When growing demand meets (9)_____ supplies, the result is more (10)_____ for the same resources.
    We can wait until a crisis forces us to do something. (11)_____ we can (12)_____ to working together, and start by asking the (13)_____ questions: How do we meet the energy needs of the developing world and those of industrialized 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.
    At Chevron, we believe that innovation, collaboration and conservation are the (17)_____ on which to build this new world. We cannot do this alone. Corporations, governments and every citizen of this planet must be part of the solution as (18)_____ as they are part of the problem. We (19)_____ 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、novel
B、toxic
C、numerous
D、tough
答案D
解析 本题考查形容词修饰名词。"棘手的问题"英文应为"tough questions"。
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