为人类提供水和食物 supply water and food for human beings 享受国家一级保护 enjoy first-
class protection of the State 削减污物排放
decrease the disposal of pollutants
抑制传染病的传播 strain the spread of infectious diseases 引发一系列的问题 result in a series
of problems 预防爱滋病蔓延
prevent the widespread of AIDS
增强环境意识 enhance the awareness of the importance of (raise the consciousness about) enviro
nmental protection 战胜非典
defeat SARS
治理沙地和水土流失问题 tackle the problems of sand and soil erosion