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选修10 Units 1~3 能力演练 一、语法填空 The world 1 (run) out of oil and energy experts believe that there could be serious shortages in ten years time.Not only is each individual using more oil than ever before，as the standard of living in industrialized countries rises，but the population 2 (explode) means that each year 3 more people will be using oil in some form 4 other.Until recently we took oil for 5 (grant) : it seemed it would never stop flowing.It was so cheap and plentiful that the whole world came to depend on it.Government neglected other sources of energy: electricity was generated 6 oil and power stations were fired by it.It found its way into many of the products of light industry.Many people are surprised 7 they learn how many items in their homes contain oil. The increase in the price of oil has brought the world to its senses.Governments are searching for a suitable alternative， 8 so far in vain.They are considering 9 they can make better use of the two other major fuels，coal and natural gas，but they have found that | 
