洪水的介绍英文.docx

FloodFlood is a type of natural hazard which cause by water. A flood forming by lake, river, or ocean water level rising over the general water level and I will threat to the area which nearby or rain pitchforks for a long time and the drainage system drains not in time, floods will naissance. The primary impacts of flood Can damage any type of structure, including bridges, cars, buildings, sewerage systems, roadways, and canals. The secondary effects are:• Water supplies 一 Contamination of water. Clean drinking water becomes scarce.• Diseases 一 Unhygienic conditions. Spread of water-borne diseases.• Crops and food supplies 一 Shortage of food crops can be caused due to loss of entire harvest. However, lowlands near rivers depend upon river silt deposited by floods in order to add nutrients to the local soil.• Trees 一 Non-tolerant species can die from suffocation. Transport - Transport links destroyed, so hard to get emergency aid to those who need it.The 2010 Pakistan floods began in late July 2010, resulting from heavy monsoon rains in the Khyber Pakhtunkhwa, Sindh, Punjab and Balochistan regions of Pakistan and affected the Indus River basin. Approximately one-fifth of Pakistan's total land area was underwater, approximately 796,095 square kilometers. According to Pakistani government data the floods directly affected about 20 million people, mostly by destruction of property, livelihood and infrastructure, with a death toll of close to 2,000; in my opinion flood is different to another hazard because it is avoidable in this age whether the drainage system work probably before the flood comes. Therefore flood is a natural disaster as well as an impact of natural disaster.Adelaide has experienced a floodWhen I waked up by choking water, I was on midnight. The water level rise form the floor about one metre. And then I climb to the roof to wait for the rescue. Whining one minute, I saw some sundries cars even house and body floating everywhere. The drainage system has been block by sundries. And I wondered how this flood causes.Next morning I had been rescue and bring me to the safety area. No one knew how did this flood cause, but some survival who lived in glengl told us that I was cause by tsunami, however everyone believe that they haven't got feeling of an earth quake. The TV station didn't perform the news so we didn't knew how did this flood cause.Until next week we saw the news that we knew the flood was cause by green house. The。