题目内容
阅读下面短文，掌握其大意，然后从各题所给的四个选项中，选出一个最佳答案.
In 1980 a report was published about what the earth might be like 20 years from then. The report was the result of a three-year study.
According to the report, the 1 of the earth in the year 2,000 is not a 2 one. The world will be more crowded because the 3 will continue to grow. The population 4 be as large as 6,300 million, almost 2,500 million more than that in 1975. 5 people would move into cities, especially cities in 6 countries. Cities like Cairo and Jakarta 7 would each have 15 million by then. Food production will increase, but not enough to feed all the people. Farmers Will grow 90% more food than they did in 1975, but most of the increase would be in Countries that 8 produce enough food for their people. 9 increase is grown is South Asia, Africa and European countries. Poor farming ways are 10 large areas of cropland, changing farms into 11 . More farmland is lost 12 cities become larger and houses are built. Air pollution will get worse as industrial countries 13 more coal and oil. Much of the world's 14 could disappear as more and more trees are cut down. Energy will continue to be a 15 problem. The experts hope their picture of the earth for the year 2000 may be 16 . Measures must be taken to change the situation that 17 today. By changing the situation, by settling the problems, the picture can be changed. There is 18 time for the nations of the world to work together on a plan of action. But they 19 that waiting too long to make decisions would greatly 20 the chances of success.
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解析：
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(1) C 阅读全文可知，短文是所出版的一份报告中关于2000年地球情况的生动描写，故填picture. (2) A 四个选项的形容词填入句中语法都正确，但根据下句The world will be more crowded because the population will continue to grow.的语境可以确定答案选A，在2000年地球上的人口是不能令人喜悦的. (3) D 后边一句The population would be as large as 6, 300 million, almost 2,500 million more than that in 1975.说明，世界将变得更加拥挤，不是因为车辆而是因为人口的不断增长. (4) A should表责任、义务，意为“应该，应当”；would作情态动词，表示婉转推测的意向，意为“可能，大概”，该句情态动词的用法属于后者. (5) B 后边一句Cities like Cairo and Jakanta probably would each have 15 million by then.说明，将会有更多的人进入城市. (6) B developing country发展中的国家；developed country发达的国家.后边一句中的埃及首都开罗和印度尼西亚首都雅加达都是发展中国家的城市，由此可推断出B是最佳选项. (7) C 前句叙述了在2000年人们搬进城市的可能性很大，尤其是发展中国家的城市.surely意为“一定，肯定”，语气太肯定不合句意，故此空应填表示可能性较大的副词probably，在句中作状语. (8) A 根据上下文可以看出，大部分粮食的增长，是一些已经为他们的人民种了足够粮食的国家，故选A项. (9) B 此空应填little与most相对应.另外，根据下面一句中的poor farming ways也可作出正确判断. (10) D poor farming ways必然破坏了种植庄稼的面积，不可能减少种植庄稼的面积，故答案选D. (11) D 根据常识推理，差的耕作方法破坏了种植庄稼的面积，造成的结果必然是变成沙漠. (12) C 根据句意和结构，此空应填从属连词as引导一个时间状语从句，强调从句与主句的动作相继发生.这句意思是“随着城市扩大房屋的建造，会失去更多的农田”. (13) B 四个选项的及物动词都可以带宾语，填在句中语法都正确，但根据主句可以确定此空应填burn.空气污染将变得更加严重，是因为工业国家燃烧更多的煤和石油. (14) C 由原因状语从句as more and more trees are cut down可以推断出此空应填forests.因为越来越多的树被砍伐，所以很多森林会消失. (15) C 根据上文人口的增长，土地的破坏，森林的砍伐，就必然造成能源问题将继续是一个严重的问题. (16) A 下文叙述了通过改变形势、解决问题，上述描述能够得以改变，由此可推知专家们希望他们的描述不要成为现实，故此空应填wrong. (17) D 四个选项均为不及物动词，但所表达的意义不同：appear出现；happen发生；develop发展；exist存在.这句是说“必须采取措施改变当今存在的情况”，故答案选D. (18) B 四个选项中的副词still意为“仍然”，可以表示一个持续的状态，填入空白更能充分体现出专家们对各国政府的殷切希望，他们认为及早制订计划，采取有力措施，还来得及. (19) B 宾语从句等待太久而不能作出决议会使成功的机会大大减少，这是专家们告诫各国政府的话，故此空应填warned. (20) A 上文叙述了仍然有时间供世界各国共同制订行动计划，但是等待太久而迟迟作不出决议，必然导致成功的机会大大减少，故此空应填reduce. |
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