单项选择题

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 play7 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.

Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. (10 points)2（）

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