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高中英语高一 04Earthquakes 学案.doc

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高中英语高一 04Earthquakes 学案.doc

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文档介绍:该【高中英语高一 04Earthquakes 学案 】是由【芝士酒是力量】上传分享,文档一共【2】页,该文档可以免费在线阅读,需要了解更多关于【高中英语高一 04Earthquakes 学案 】的内容,可以使用淘豆网的站内搜索功能,选择自己适合的文档,以下文字是截取该文章内的部分文字,如需要获得完整电子版,请下载此文档到您的设备,方便您编辑和打印。Unit 4 Earthquakes -- 语言应用
Natural disasters (catastrophe)
. earthquake,drought, flood, forest fire, hurricane, landslide, tsunami, typhoon, volcanic eruption, tornado, blizzard, avalanche [ævəlæntʃ], thunderstorm, wildfire, hailstorm
Safety Tips for Lightning
Since lightning can be very dangerous and it has killed and maimed(使残疾) many people, it is important for us to follow safety measures and protect ourselves and property.
During a storm stay indoors, however if you are caught outside in a severe storm, never stand under any tall objects such as trees. It is better to lay down in an open field away from any surrounding tall objects. Avoid any large bodies of water and if you are swimming, leave the water immediately.
Stay away from metal objects such as bicycles and tractors. Never play golf or go fishing during a storm. If you are outside playing any games with metal gear(齿轮), be sure to take it off if a storm starts. If you are driving a car during a thunderstorm stay in the car as this is a safe place, however avoid touching any metal in the car. Do not use the telephone since lightning might strike the tall telephone poles. Avoid using any electrical equipment such as hair driers, electric razors, microwave ovens, or washers et cetera.
Today, most tall buildings are protected by lightning rods(避雷针). This concept was first introduced by Benjamin Franklin in 1749. These are metal rods which are placed on top of the highest, most exposed part of the building. A wire leads from the rod and is buried underground away from the building. This attracts the lightning and conducts(引领) its discharge(放电)away from the building and into the ground.
Safety Tips for tornadoes
There are a number of ways to protect yourself from the deadly effects of tornadoes. If you ever find yourself in the vicinity surrounding a tornado, the best thing to do is to get into a shelter that is equipped with a storm cellar(地下室). If you don’t have a shelter designed to withstand(承受)tornadoes, then go into your basement. Do not stand near any windows, as they are prone(易于…) to blow out due to the drastic(猛烈的) drop in pressure. If you cannot reach the basement in time, find a closet or bathroom on the lowest floor possible. Toilets and bathtubs are usually anchored into the ground, and thus are usually the only things left intact after a tornado hits.
If you are inside a school or any other large building, do not stand under an area with a very large roof such as a gymnasium, because they are the most likely to crumble(崩溃)first due to the high wind speeds. Try to avoid hallways that have doorways leading outside the building.
If you are outside, find cover under an overpass(天桥). A ditch(沟) is also a good choice if it is not raining. If there is rain, then you need to watch out for flash floods and drowning. Always crouch down and make yourself a small “target”. If you are in a car, do not try to drive away from the tornado, because you might actually be driving toward it. Numerous people have died in cars because tornadoes have thrown the cars or toppled(推翻) them over.
If you live in a mobile home, you should vacate(空出)it immediately, for it offers virtually no protection at all. The tornado can pick it up like a toy and hurl(猛投)it miles from its original space.
Of course, there are the usual chores(杂事) you can do when any large storm is approaching, such as stocking up on canned food, fresh water, and batteries for radios and flashlights.
But probably the best precaution to avoid getting hurt by a tornado is to be alert and follow instructions. Many people get hurt by tornadoes because they are not informed about severe weather conditions in the area, so listening to weather forecasts are important. You should have at least one battery operated radio because of the possibility of a power failure.
Safety Tips for a tsunami
1) Find out if your home is in a danger area.
Know the height of your street above sea level and the distance of your street from the coast.
Be familiar with the tsunami warning signs.
People living along the coast should take earthquakes under consideration as a warning signal of a coming tsunami. A rise or fall in coastal waters is a sign that a tsunami is approaching the coast.
2) Make evacuation plans.
Pick an inland location that is elevated to a high level. After a natural disaster strikes, roads may be blocked off. It is essential to pick more than one evacuation route.
Teach family members how and when to turn off gas, electricity,and water.
Teach children how and when to call 9-1-1 and which radio station to listen for information.
3) Have disaster supplies on hand.
Flashlight Portable, battery-operated radio First aid kit Emergency food and water Essential medicines Develop an emergency
communication plan.
4) In case family members are separated from one another during a tsunami, have a plan for getting back together. Ask a relative or friend to be the "family contact" in case of emergency. After a disaster, often it's easier to call long distance. Make sure everyone knows about the contact person.