下面小编跟大家一起了解英语四级仔细阅读练习分享,希望对大家的学习有所帮助。
Water problems in the future will become more intense and more complex. Our increasing population will tremendously increase urban wastes, primarily sewage. On the other hand, increasing demands for water will decrease substantially the amount of water available for diluting wastes. Rapidly expanding industries which involve more and more complex chemical processes will produce large volumes of liquid wastes,
and many of these will contain chemicals which are poisonous. To feed our rapidly expanding population, agriculture will have to be intensified. This will involve ever-increasing quantities of agriculture chemicals. From this, it is apparent that drastic steps must be taken immediately to develop corrective measures for the pollution problem. There are two ways by which this pollution problem can be lessened. The first relates to the treatment of wastes to decrease their pollution hazard. This involves the processing of solid wastes "prior to" disposal and the treatment of liquid wastes, or effluents (废料) , to permit the reuse of the water or best reduce pollution upon final disposal. A second approach is to develop an economic use for all or a part of the wastes. Farm manure is spread in fields as a nutrient (养料 ) or organic supplement.
C. Demands for water will go up along with the expanding population. D. Intensive cultivation of land requires more and more chemicals. 38.The reader can conclude that_______. A. countries of the world will work together on pollution problems B. byproducts from wastes lead to a more prosperous marketplace C. science is making great progress on increasing water supplies D. some industries are now making economic use of wastes 39.The author gives substance to the passage through the use of_______. A. interviews with authorities in the field of water controls B. opinion and personal observations C. definitions which clarify important terms D. strong argument and persuasions 40.The words "prior to" (Para. 2) probably mean_______. A. after B. during C. before D. beyond 答案:26. C 27. A 28. D 29. B 30. C