Question

一篇英语完型填空，朋友帮忙找下吧！

第一句是:the amount of usable water has always been of great interest in the world.下面的全部，谢谢！

Answer 1

The amount of usable water has always been of great interest in the world. __1__ springs and streams sometimes means control, particularly in the __2__ areas like the desert. The control is possible even without possession of large areas of __3__ land. In the early days of the American West, gun fights were not __4__ for the water resources (资源). And laws had to be __5__ to protect the water rights of the __6__ and the use of the water resources accordingly.
　　 __7__ is known to us all, there is not __8__ water in all places for everyone to use as much as he likes. Deciding on the __9__ of water that will be used in any particular period __10__ careful planning, so that people can manage and use water more __11__. Farmers have to change their use of or demand for water __12__ the water supply forecast (预报).
　　 The __13__ water supply forecast is based more on the water from the __14__ than from the below. Interest is __15__ in the ways to increase rainfall by man-made methods, and to get water from the winter snow on mountain __16__. With special equipment, some scientists are studying the ways in which the mountain snow can be __17__, and with the help of a repeater station, they send the __18__ data (数据) to the base station. The operator at the base station can get the data at any time by __19__ a button. In the near future, the forecast and use of water __20__ probably depend on the advance knowledge of snow on mountains, not of water underground.