阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的
词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为16-25的相应位置上。
In most cities,    or poor, it is the less well off that are most at risk from floods and natural disasters. It was the poor of New Orleans, nearly a   (three)of the population, who lived in the lowest-lying parts of the city and  (suffer)most from Katrina’s(卡特里娜飓风) wrath (愤怒).   (similar), it was the urban poor of Honduras(洪都拉斯) and its neighbors who were struck hardest   Hurricane Mitch in 1998. And it is the people of the slums (贫民窟) more widely in Latin America  are most capable of being attacked.
In some places, too little water, not too much, is the problem. China’s thirst for industry and   (irrigate) has combined with climate change to drain the aquifers(蓄水层). Droughts seem to be ever more frequent in northem China, and southern cities such as Guangzhou are also affected. Rivers are drying up: the Yellow River now flows to the sea for only   few weeks a year. And the rain,when it comes, is intensely acid. To make matters  (bad), the glaciers on which both China India partly depend are melting. Any benefits from extra water supplies will be short-term, and damaged by floods.