精选优质文档-倾情为你奉上主题语境：人与自然主题群：灾害防范语篇类型：议论文来源：Scientific American, Word count：384Flesch Reading Ease：42.6Flesch-Kincaid Grade Level：11.9Prepare for Water Day Zero Earlier this year alarming headlines blared that Cape Town, South Africa, was headed for Day Zerothe date when the citys taps would go dry because its reservoirs would become dangerously low on water. That dayoriginally expected in mid-Aprilhas been postponed until at least 2019, thanks to water rationing and a we
