必修第一册 Unit 4 Natural Disasters 题组训练2-【导与练】2024高考英语一轮复习高中总复习第1轮能力提升题组训练（新教材，人教版）

题组训练2 Ⅰ.阅读 A (2023·浙江宁波鄞州中学模拟预测) Atmospheric rivers are long,narrow bands of moisture in the atmosphere.These rivers in the sky can transport 15 times the volume of the Mississippi River.When that moisture reaches the coast and moves inland,it rises over the mountains, bringing rain and snow.Many fire-weary people welcome the water,but atmospheric rivers can cause other disasters,such as extreme flooding and debris flows. On Feb.27,2019,an atmospheric river occurred.Just north of San Francisco Bay,in Sonoma County’s famed wine country,the storm brought over 21 inches of rain.For the fifth time in four decades,the town of Guerneville was flooded.Damage in the town alone was estimated at more than $100 million. Events like these have drawn attention in recent years,but atmospheric rivers are not new.They have run through the sky for millions of years.And researchers have known for some time that flooding due to atmospheric rivers could cost a lot of money,but until our study no one had quantified the damage. We found that atmospheric rivers caused an average of $1.1 billion in flood damage yearly in the western US.More than 80 percent of all flood damage in the West in the years we studied were associated with atmospheric rivers.In some areas,such as coastal northern California,these systems caused more than 99 percent of damage. And several published studies have modeled how atmospheric rivers will change in the coming decades.The process is simple: Greenhouse gases trap heat in the atmosphere,warming the planet.This causes more water to evaporate from oceans and lakes,and increased moisture in the air makes storm systems grow stronger.Like hurricanes,atmospheric rivers are projected to grow longer,wider and wetter in a warming climate. Therefore,I believe that improving atmospheric forecasting systems should be a priority for adapting to a changing climate.Better understanding of atmospheric rivers can provide valuable information to residents and emergency respon