Unit 6 Survival Starting out & Understanding ideas 课件-2022-2023学年高中英语外研版（2019）选择性必修第二册

U6 Survival starting out+understanding ideas flood water shortage /drought Which country suffers from a lot of rain but it is usually very dry? security concerns shortage of supplies food shortages can cause famine, migration, collapse of social order and war water shortages, crop failure haze/smog thunderstorm lightning land slide rock-mud flow sandstorm disease outbreak security concerns shortage of supplies quarantine, shortage of hospital services, panic, panic- buying of essentials, misinformation medicines, food or other supplies earthquake tsunami tidal wave security concerns shortage of supplies difficult to leave the area to find safety; Power and communications may have been cut off; risk of further quakes via an aftershock food, water, medicines, fuel, electricity shipwreck security concerns shortage of supplies dangers of drowning or of dying from exposure food, water NASA security concerns shortage of supplies extreme temperatures, low pressures, radiation, loss of bones and muscles due to zero-gravity environment, activities such as eating and drinking everything they need with them, even air Amazon Jungle security concerns shortage of supplies wild animals, venomous insects, difficuit to travel and navigate food, water, medicines Antarctica What difficulties do they face? How do they overcome them? They have to endure extreme weather including freezing temperatures, fierce winds and strong blizzards. When they go outside the stations, they wear special clothes for protection. As weather can change from calm to white-out in minutes, people have to take a special survival bag in case they are trapped outside overnight. One of the most difficult things is the long days and nights. They may cause issues with the scientists' body clocks. The darkness also makes outdoor research impossible. Watch the video Living and Working in Antarctica: It is almost impossible to grow fresh produce there because of the extreme conditions, an