首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
The world is not only hungry, but it is also thirsty for water. This may seem strange to you, since nearly 70 percent of the ear
The world is not only hungry, but it is also thirsty for water. This may seem strange to you, since nearly 70 percent of the ear
admin
2014-02-25
60
问题
The world is not only hungry, but it is also thirsty for water. This may seem strange to you, since nearly 70 percent of the earth’s surface is covered with water. But about 97 percent of this huge amount is sea water , or salt water. Man can only drink and use the other 3 percent fresh water from rivers, lakes, underground , and other sources. However we cannot even use all of that, because some of them are in the form of icebergs and glaciers(冰川). Even worse, some have been polluted.
However, as things stand today, this small amount of fresh water is still enough for us. But our need for water is increasing rapidly almost day by day. Only if we take steps to deal with this problem now can we a-void a severe worldwide water shortage later on.
We all have to learn how to stop wasting our valuable water. One of the first steps is to develop ways of reusing it.
Today in most large cities, water is used only once and then sent out into a sewer system. From there it returns to the sea or runs into underground storage tanks. But it is possible to pipe used water to a purification(净化)plant. There it can be treated with chemicals so that it can be used again, just as if it were fresh from a spring.
But even if every large city purified and reused its water, we still would not have enough. All we’d have to do is to make use of the vast reserves of sea water in the world and is to remove the salt. If we take these steps we’ll be in no danger of drying up.
In order to have enough water, we should also make use of______.
选项
A、icebergs and glaciers
B、sea water
C、rivers and lakes
D、underground water
答案
B
解析
事实细节题。文章第五段指出,我们必须利用海水淡化工程来满足人们对水的需要。
转载请注明原文地址:https://kaotiyun.com/show/ikFC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Historianscan’ttelluswhen,whereor【71】thefirstfoodwascooked.Inearliest【72】whenpeoplehadeatentheirfood【73】,
Thefollowingisalistofnewspapersandmagazines.Afterreadingit,youarerequiredtofindtheChineseequivalentsinthet
Sincehewasbornwithasilverspooninhismouth,hespentmoneylikewater.
A、expectingB、expectedC、expectD、expectsB
(67)Whetherathomeorinarestaurant,mealsinBrazilaresacred(神圣的);atimetoeat,butalsotosharepreciousmomentswit
InthewateraroundNewYorkcityisaverysmallislandcalledLibertyIsland.OnLibertyIslandisaveryspecialstatuecalle
Youaregettingtoooldforfootball.You’dbetter______tennisinstead.
Ifthesea______500feet,Indiawouldbecomeanisland.
随机试题
为中医学理论体系确立奠定基础的书籍是( )
王某在担任某服饰有限公司总经理时,当某服饰辅料有限公司的负责人刘某向其催要货款时,向刘某索要回扣11万元。王某索取贿赂的行为构成:()
下列哪些机构和人员能够成为承担《银行业监督管理法》规定的法律责任的主体?()
不正规半日潮混合潮在一个太阴日中有()。
5月10日,大连商品交易所的7月份豆油收盘价为11220元/吨,结算价为11200元/吨,涨跌停板幅度为4%,则下一个交易日价格不能超过()元/吨。
学习目标:(1)增强奔跑能力,发展心肺功能。(2)提高自主学练能力。(3)培养探究精神,提高合作学习的能力。学习内容:跑动性游戏。学习步骤:(1)教师给学生们三个排球,让学生自主创编具有竞争性、规
下列关于诉讼程序的选项中,可以适用简易程序审理的是()。
()对于奋斗相当于山顶对于()
2016年6月4日,国务院新闻办公布的《
被剥夺政治权利的犯罪分子不得担任国有公司、企业的职务。()
最新回复
(
0
)