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8.The word"conservation"has a thrifty (节俭)meaning.To conserve is to save and protect,to leave what we ourse1ves enjoy in such good condition that others may also share the enjoyment.Our forefathers had no idea that human population would increase faster than the supplies of raw materials; most of them,even until very recently,had this foo1ish idea that the treasures were"1imitless"and"inexbaustible".Most of the citizens or earlier generations knew little or nothing about the complicated and delicate system that runs all through nature,and which means that,as in a 1iving body,an unhealthy condition of one part will sooner or 1ater be harmful to a11the others.
??Fifty years ago nature study was not part of the schoo1work; scientific forestry was a new idea:timber was still cheap because it could be brought in any quantity from distant woodlands; soil destruction and river f1oods were not national problems; nobody had yet studied long-term climatic cycles in relation to proper 1and use; even the word"conservation"had nothing of the meaning that it has for us today.
??For the sake of ourselves and those who will come after us,we must now set about repairing the mistakes of our forefathers.Conservation should,therefore,be made a part of everyone's daily life.To know about the water table(地下水位) in the ground is just as important to us as a knowledge of the basic arithmetic formulas.We need to know why all watersheds need the protection of plant life and why the running current of streams and river must be made to yield their full benefit to the soil before they finally escape to the sea.We need to be taught the duty of planting trees as well as of cutting them.We need to know the importance of big,mature trees,because living space for most of man's fellow creatures on this planet is figured not only in square measure of surface but also in cubic volume above the earth.In brief,it should be our goal to restore as much of the original beauty of nature as we can.

45.The author's attitude towards the present situation in the use of natural resources isC.
A.positive              B.neutral
C.critical              D.suspicious
46.According to the author,the greatest mistake of our forefathers was thatA.
A.they had little or no sense of environmental protection
B.they had no idea about scientific forestry
C.they did not know the importance of nature study
D.they had no idea of how to make good use of raw materials
47.With a view to correcting the mistakes of our forefathers,the author suggests thatD.
A.we plant more trees and make full use of the woodlands
B.we be taught environmental science,as well as the science of plants
C.we return to nature and not use any natural resources at all
D.environmental education be directed toward everyone
48.What does the author imply by saying"living space…above the earth."(the underlined sentence in Paragraph 3)?B
A.Our living space on the earth is getting smaller and smaller in volume.
B.We must create better living conditions for both birds and animals.
C.We need to take some measures to protect space in volume.
D.Our living space should be measured in cubic volume.

分析 为了我们和后代,我们必须修复祖先的错误,自然资源并非用之不完,取之不尽的,环保教育应成为我们日常的一部分.

解答 53.C观点态度 根据most of them,even until very recently,had this foo1ish idea that the treasures were"1imitless"and"inexbaustible".可知作者认为大多数人对自然财富是无限的,用不完好的,很愚蠢.再根据选项positive积极,肯定的.neutral中庸的critical 批判的suspicious,怀疑的,故选C.
54.A语篇理解 根据Most of the citizens or earlier generations knew little or nothing about the complicated and delicate system that runs all through nature,and which means that,as in a 1iving body,an unhealthy condition of one part will sooner or 1ater be harmful to a11the others.可知我们的祖先对贯穿自然的复杂而微妙的系统知之甚少,或一无所知,就像人身体一个部位不健康了就会影响身体的其他方面,祖先们不注重环境保护,故选A.
55.D推理判断 根据For the sake of ourselves and those who will come after us,we must now set about repairing the mistakes of our forefathers.Conservation should,therefore,be made a part of everyone's daily life.为了我们和后代,我们必须修复祖先的错误,环保应成为我们日常的一部分,AB选项片面,不够全面,C选项因噎废食,故选D.
56.B 细节理解,living space for most of man's fellow creatures on this planet is figured not only in square measure of surface but also in cubic volume above the earth对于在这个星球上的多数与人类同存的生物来说,生存空间并不仅仅是以面积计算的地表空间,还包括地表以上的空间,所以人类除了保护自身生存环境外,还应该给鸟,动物六下生存空间,故选B.

点评 科教类阅读有一定难度,考生可先阅读题干要求,带着问题读文章,可能会更快更准的找到答案,达到事半功半的效果

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