2015-09-06
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Notes:
sources of water источники воды
household activities домашняя (бытовая) деятельность
require требовать, нуждаться
renewable resource возобновляемый источник
supply of water снабжение водой
increase – decrease увеличиваться-уменьшаться
water demand потребность в воде
exceed превышать
awareness осознание
preserving water сохранение воды
wetlands влажные земли
Water resources are sources of water that are useful or potentially useful. Uses of water include agricultural, industrial, household, recreational and environmental activities. Virtually all of these human uses require fresh water.
97% of the water on the Earth is salt water. Only three percent is fresh water; slightly over two thirds of this is frozen in glaciers and polar ice caps. The remaining unfrozen fresh water is found mainly as groundwater, with only a small fraction present above ground or in the air.
Fresh water is a renewable resource, yet the world's supply of clean, fresh water is steadily decreasing. Water demand already exceeds supply in many parts of the world and as the world population continues to rise, so too does the water demand. Awareness of the global importance of preserving water for ecosystem services has only recently emerged as, during the 20th century, more than half the world’s wetlands have been lost.
Vocabulary
1 replenish снова наполнять, пополнять
2 precipitation осадки
3 discharge сток
4 evaporation испарение
5 seepage просачивание, инфильтрация
6 input ввод
7 watershed водораздел, бассейн реки
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8 quantity количество
9 storage capacity ёмкость
10 permeability водопроницаемость
11 beneath внизу
12 timing выбор определённого времени
13 rate доля, коэффициент, пропорция
14 affect влиять, воздействовать
15 water lost потеря воды
16 devastating опустошительный, разрушительный
17 velocity скорость
18 available доступный
19 intermittent скачкообразный
20 throughout повсюду, в продолжение
21 average средний
22 augment увеличивать, прибавлять
23 negligible незначительный
Exercises
