首页
登录
职称英语
Water problem in the future will become more intense and more complex. Our in
Water problem in the future will become more intense and more complex. Our in
游客
2024-01-16
51
管理
问题
Water problem in the future will become more intense and more complex. Our increasing population will tremendously increase urban wasters, primarily sewage. On the other hand, increasing demands for water will decrease substantially the amount of water available for processing wasters. Rapidly expanding industries which involve more and more complex chemical processes will produce larger volume of liquid wasters, and many of these will contain chemicals which are noxious. To feed our rapidly expanding population, agriculture will have to be intensified. This will involve ever-increasing quantities of agricultural chemicals. From this, it is apparent that serious steps must be taken immediately to develop corrective measures for the pollution problem.
There are two ways by which this pollution problem can be settled. The first relates to the treatment of wastes to decrease their pollution danger. This involves the processing of solid wasters
prior to
disposal and the treatment of liquid wasters to permit the reuse of the water or minimize pollution upon final disposal.
A second approach is to develop an economic use for all or a part of the wastes. Farm manure(肥料)is spread in fields as a nutrient or organic supplement. Wastes from sewage disposal plants are used in some areas both for irrigation and for the nutrients contained. Wastes from other processing plants may also be used as a supplemental source of water. Many industries, such as meat and poultry processing plants, are currently converting former waste products into marketable byproducts. Other industries are exploring potential economic uses for their waste products. [br] The purpose of this passage is______.
选项
A、to acquaint the reader with water pollution problems
B、to alert the reader the dwindling water supply
C、to explain industrial uses of water
D、to demonstrate various uses of water
答案
A
解析
主旨概括题。这篇文章主要介绍污水的现状以及治理方法。A包含这层意思;B警告读者要缩减水的供应,原文没有这个意思;C解释水在工业上的应用,太片面;D演示水的不同用法。文中只是介绍污水的使用,故答案为A。
转载请注明原文地址:http://tihaiku.com/zcyy/3368083.html
相关试题推荐
Hismanualofbotanyhasbecomea________amongscientists.A、masterpieceB、classi
LifeonEarthis______variedandcomplex.A、amazinglyB、amusedlyC、amazedlyD、amu
Idon’tthinkthisproblemisaboveyourability.Ithinkyoucan______it.A、slip
Hergreatdreamofbecomingawriterhasfinallybecome______.A、practiceB、event
Thenewleaderpromisedthattheproblem_____careofassoonashecould.A、wil
Theydiscussedtheproblemthreeorfourtimes,butcouldcometono______.A、end
Hedidn’tfearnewideas,______thefuture.A、norfearedheB、norhedidfearC、
Ifyouwanttobecomeadoctor,yououghttostudy______.A、medicineB、themedici
Student:ImeanIwanttodosomeoftheseproblems.Teacher:Yeah.Student:Buti
Withintheforeseeablefuturetheremaybeamajor______ofspecies,involvingfr
随机试题
WhydidthesugarcanefarmersbringcanetoadstoAustralia?[br][originaltex
WhatissueisNorthKoreawillingtodiscusswithSouthKoreaaccordingtoforme
幼儿的身体攻击行为在()岁达到顶点。A.3 B.4 C.5 D.6
1.东:向东。2.风流:指优秀的、杰出的。 3.英发:英俊奋发。 4.灰:像灰一样;烟:像烟一样。 5.故国:旧国,这里指旧地。
当前主流的多核计算机属于()计算机。A.SISD B.SIMD C.MIS
把原始资料加工后的目录、索引和文摘,称为A.一次文献B.二次文献C.三次文献D.
患者,男性,38岁。在高温下持续工作10小时,出现意识不清入院。患者皮肤湿冷,血
在招股说明书中,发行人应简介员工及其社会保障情况,主要包括()。A:员工人数及变
A.化疗前联合使用昂丹司琼和地塞米松,化疗结束后给予2天的地塞米松或昂丹司琼
改革开放以来,中共中央、国务院先后发布了( )个以“三农”为主题的中央一号文件
最新回复
(
0
)