英语四级晨读100篇精华版001：Water Shortage水资源短缺
Humanity uses a little less than half the water available worldwide. Yet occurrences of shortages and droughts (干旱) are causing famine and distress in some areas, and industrial and agricultural by-products are polluting water supplies.
入类使用的水量不足全世界可利用的水的一半。但是一些地区因缺水和天旱发生了饥饿和贫困，工业和农业的副产品正在污染着水源。
Since the worlds population is expected to double in the next 50 years, many experts think we are on the edge of a widespread water crisis.
因预计全世界^口在今后50年内会翻一番，许多专家认为我们已经处于普遍的水危机边缘。
But that doesnt have to be the outcome. 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 appreciate petroleum more after the 1970s oil crises, today we must start looking at water from a fresh economic perspective. We can no longer afford to consider water a virtually free resource of which we can use as much as we like in any way we want. Instead, for all uses except the domestic demand of the poor,
但这未必就是结果。如果我们从现在开始比过去更节约用水，缺水问题不会造成困扰。正如上世纪70年代石油危机之后我们开始更重视石油一样，今天我们必须开始从新的经济角度来看待水。我们不能再认为我们愿意用多少就用多少、愿意怎么用就怎么用这实际上免费的资源。相反，除了贫困家庭需要的供水之外，政府对所有的用水都会用价格反映水的实际价值。这就意味着不仅要收供水的成本费，也要收水本身的费用。
governments should price water to reflect its actual value. This means charging a fee for the water itself as well as for the supply costs.
政府还应当用经济和环保方面更可行的方法来供水以保护这一资源。例如，在干旱的热带地区供给灌溉用水最便宜的方法可通过小规模工程进行，如：把雨水聚集到凹地里，然后用水泵送到附近的庄稼地。
Governments should also protect this resource 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 tropics 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 institutional and legal approaches to water use. Rather than spread control among hundreds or even thousands of local, regional, and national agencies that watch various aspects of water use, countries should set up central authorities to coordinate water policy.
无论采取什么步骤更有效地供水，政府必须改变用水的制度和法律。与其把管理权分散到数以百计甚至数以千计的地方、地区和国家机关，不如由政府设立一个中央机关来协调水资源的管理。
CET4四级词汇：
drought凡.干旱
famine 饥荒
irrigation灌溉
depression亿洼地
coordinace乱协调
by-product副产晶
CET4阅读单词短语考点：
Since the worlds population is expected to double in the next 50 years, many experts think we are on the edge of a widespread water crisis.
因为预计全世界人口在今后50年内会黼一番，许多专家认为我们已经处于普遍的水危机边缘。
从句子结构分析，该句是一个由smce引导的原因状语从句，
since the worlds population i:=i expected to double in山e next 50 years
做原因状语，主语为many experts，谓语为think，宾语由句
子we are on the edge of a widespread water crisis充当。
he expected to：被认为;预料
He was expected to he the top student in his class.
他过去被认为是班上最好的学生。
on the edge以处在的边缘
He seemed to be polsed on the edge
of Hollywood success.
化好像马上就要在好莱坞立足扬名了。