题文
阅读理解。 Valuing waterHuman beings use a little less than half the water available worldwide. Yet shortages and droughts (干旱)
are causing starvation and poverty in some areas, and industrial and agricultural by-products are polluting water
supplies. Since the world's population is expected to double in the next 51 years, many experts think we are on
the edge of a widespread water crisis.
But that doesn't have to be the result. Water shortages do not have to trouble the world-if we start valuing
water more than we have in the past. Just as we began to value petrol more after the 1970s oil crisis, today we must start looking at water from a fresh economic view. We can no longer afford to consider water a nearly
free resource of which we can use as much as we like in any way we want.
Instead, for all uses except the demand of the poor, governments should price water to reflect its real value. This means charging a fee for the water itself as well as for the supply costs.
Governments should also protect this source by providing water in more economically and environmentally
sound ways. For example, often the cheapest way to provide irrigation (灌溉) water in the dry places is through small-scale projects, such as gathering rainfall in depressions(凹地) and pumping it to nearby cropland.
No matter what steps governments take to provide water more efficiently, they must change their ways to
use water. Rather than control hundreds or even thousands of local, regional agencies that watch water use,
countries should set up central authorities to manage water policy. 1. What is the real cause of the potential water crisis? A. only half of the world's water can be used.
B. The world population is increasing faster and faster.
C. Half of the world's resources have been seriously polluted.
D. Human beings have not placed sufficient value on water resources. 2. We can conclude from the passage that the water problem ______. A. is already serious in certain parts of the world
B. has been exaggerated by some experts in the field
C. poses a challenge to the technology of building reservoirs
D. is underestimated by government organizations at different levels 3. According to the author, the water price should ______. A. be reduced to the minimum
B. stimulate domestic demand
C. equal its real value
D. take into account the occurrences of droughts. 题型：未知难度：其他题型
答案
1-3: DAC解析
该题暂无解析
考点
据考高分专家说，试题“阅读理解。 Valuing w.....”主要考查你对 [健康环保类阅读 ]考点的理解。健康环保类阅读
健康环保累阅读概念：
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。
健康环保类文章阅读技巧：
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：
第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；
第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；
第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。
从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。
【阅读策略】
1、概要(Summarizing)：
阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。
2、组织(Organization)：
阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。
