文档介绍：
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In 1990 a report was published about what the earth might be like 20 years from then on. The report was a result of a three-year ___1___.
According to the report, the picture of the earth in the year 2010 is not a ___2___ one. The world will be more ___3___ because the population will continue to grow. The population could be ___4___ 6 300 million, almost 2 150 million more than in 1985. More people would move into cities, especially cities in ___5___ countries. Cities like Cairo and Jakarta probably would ___6___ have 15 million by then.
Food production will ___7___, but not enough to feed all the people. Farmers will grow 90% more food than they did in 1985, ___8___ most of the increase would be in countries that ___9___ produce enough food for their people. Little increase is ___10___ in South Asia, Africa and the Middle East. Poor farming ways are ___11___ large areas of crop land, changing farms into deserts. More farmland is ___12___ as cities e larger and more houses are built. ___13___ will get worse as industrial countries burn more coal and oil. Many of the world’s ___14___ could disappear as more and more trees are cut down. Energy will continue to be a serious problem. The experts say their picture of the earth for the year 2010 ___15___. They only carried out the situation that ___16___ today. By changing the situation, by ___17___ the problems, the picture can be changed. There is ___18___ time for the nations of the world to work ___19___ a plan of action. But they warned that ___20___ too long to make decisions would greatly reduce the chances of ess.
1. A. learning B. project C. notice D. study
2. A. pleased B. pleasant C. safe D. blue
3. A. dangerous B. beautiful C. crowded D. terrible
4. A. no more than B. as many as C. as much as D. as large as
5. A. developing B. developed C. big D. mountainous
6. A. none B. each C. all D. neither
7. A. insist B. reduce C. increase D. continue
8. A. so B. but C. or D. howev