A tornado is a rotating column of air from a thunderstorm to the ground
演讲稿龙卷风
定义A tornado is "a violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, and often (but not always) visible as a funnel cloud"。
A multiple-vortex tornado is a tornado that contains several vortices rotating around, inside of, and as part of the main vortex.The only times multiple vortices may be visible are when the tornado is first forming or when condensation and debris is balanced enough so that subvortices are apparent without being obscured.A waterspout is defined by the National Weather Service as a tornado over water.They form at the bases of cumulus congestus clouds over tropical and subtropical waters. They have relatively weak winds, smooth laminar walls, and typically travel very slowly. They occur most commonly in the Florida Keys and in the northern Adriatic Sea. In contrast, tornadic waterspouts are stronger tornadoes over water.FormWarm moist air shoots upward meeting colder, dryer air. Warm moist air is lighter than the cold dry air making for a strong updraft within the thunderstorm. As the warm moist air rises, it may meet varying wind directions at different altitudes.If these varying winds are staggered in just the right manner with sufficient speed, they will act on the upward rising air, spinning it like a top. This would be similar to spinning a pencil held between your hands with your palms facing each other, moving your hands in opposite directions. The storm will begin to show visible rotation, often forming a wall cloud. Inside the storm these spinning winds can begin the formation of a tornado. On the outside of the thunderstorm rotation might be visible as in this photo and here. Only about 30 percent of mesocyclones actually produce a tornado, but about 95 percent produce severe weather. Most of our information about the inside of a tornado-generating thunderstorm comes from data gathered by Doppler radar. The illustration (1a) would be an example of how a tornado would typically form in this type of thunderstorm.1) the instability of the atmosphere to produce a strong updraft , because of the rapids in the largest transit airflow, it is further strengthened.2) due to the updraft begins to rotate in the middle of the troposphere, the formation of the meso-scale cyclone with wind speed and direction are in the vertical direction shear interaction. 3)With the development of mesoscale cyclones to the ground and upward stretch itself thinner and enhanced. At the same time, a small area of enhanced auxiliary co-nascent tornado is formed inside the cyclone, resulting in the same process of the cyclone, the formation of the tornado core.4) different the tornadoes core rotation and cyclones, its strength is enough to make the tornado has been extended to the ground. Development of the vortex reaches the ground level, the surfacepressure sharply decreased, a sharp increase in surface wind speed, the formation of tornadoesharmThere are many damages. the car was blown over, trees were uprooted, roofs and walls were blown away with this series Tornado damagePreventat home, be sure to stay away from doors, windows and housing peripheral wall, hide your head squat tornado direction opposite walls or small rooms. To escape the tornado safe place is the basement or semi-basement.The opposition having an affair tornado, you should find the nearest low-lying land volts on the ground, but to stay away from trees, poles , so as not smashed, pressure and electric shock .car go out to encounter a tornado, do not drive a car to escape, and do not in the car to avoid car tornado almost no defense, you should immediately leave the car to the low-lying ground to escape.。
高中英语配套课件：选修6 Unit 5 Period 1(人教版)
the Gulf of Mexico.There are
violent winds of 120 kilometres per hour or more，which cause huge waves，heavy rain and floods.There are on
average six Atlantic hurricanes each year and they usually
①On average，there are 800 tornadoes in the US each year，
causing about 80 deaths and over 1,500 injuries.The worst tornado of all time occurred in 1925，affecting three US states ： Missouri ， Illinois and Indiana.②By the time it ended，about 700 people had been killed and more than
was destroyed by the hurricane and Coghlan's coffin ended up in the sea.
话题美文欣赏 课前自主学习 课堂互动探究
Eight years later，the coffin was found by fishermen in the sea on Prince Edward Island in
话题美文欣赏
课前自主学习
课堂互动探究
Ⅰ.阅读短文，判断正(T)误(F)
1 ． The wind speed of the most violent tornadoes is
Unit4NaturalDisasters单词全英解析讲义-高中英语人教版
必修一Unit4 Natural DisastersDisaster: Usage: A disaster refers to a sudden and severe event causing great damage, destruction, or loss of life. Example: The earthquake that hit the city was a major disaster, leaving thousands homeless and causing widespread devastation.Tornado: Usage: A tornado is a violent, rotating column of air that extends from a thunderstorm to the ground. Example: The tornado tore through the small town, uprooting trees and destroying several houses.Drought: Usage: A drought is a prolonged period of abnormally low rainfall, leading to a water shortage in a region. Example: The ongoing drought has resulted in water rationing and a decline in agricultural production.Landslide: Usage: A landslide occurs when a mass of earth or rock slides down a slope, often triggered by heavy rainfall or earthquakes. Example: The heavy rains caused a landslide, blocking the road and isolating the mountain village.Tsunami: Usage: A tsunami is a series of large ocean waves usually caused by an undersea earthquake or volcanic eruption. Example: The tsunami waves crashed into the coastal town, causing significant destruction and loss of life.Flood: Usage: A flood is an overflow of water onto land that is usually dry. Example: The river overflowed its banks, leading to widespread flooding in the surrounding areas.Volcanic Eruption: Usage: A volcanic eruption is the release of magma, ash, and gases from a volcano. Example: The volcanic eruption spewed ash into the atmosphere, affecting air travel in the region.Magnitude: Usage: Magnitude refers to the size, extent, or importance of something, often used to describe the intensity of earthquakes. Example: The earthquake measured 7.5 on the Richter scale, indicating a significant magnitude.Rescue: Usage: Rescue involves saving someone from a dangerous or distressing situation. Example: The search and rescue team worked tirelessly to find survivors trapped under the collapsed building.Damage: Usage: Damage refers to harm or injury caused by an event or action. Example: The storm caused extensive damage to the infrastructure, leaving many without electricity.Destroy: Usage: Destroy means to completely ruin or damage something beyond repair. Example: The fire destroyed the historic building, reducing it to ashes.Evacuate: Usage: Evacuate means to move people away from a dangerous area to a safer place. Example: The authorities ordered residents to evacuate as the floodwaters continued to rise.Helicopter: Usage: A helicopter is a type of aircraft that can take off and land vertically and is often used for transportation or rescue operations. Example: The injured hiker was airlifted to safety by a helicopter.Death: Usage: Death refers to the end of life or the state of being deceased. Example: The earthquake resulted in several deaths and many injuries.Affect: Usage: Affect means to produce a change or influence something. Example: The economic crisis affected businesses and led to job losses.Shelter: Usage: Shelter is a place that provides protection and safety, especially during emergencies or disasters. Example: The relief organization set up temporary shelters for the displaced families.Crack: Usage: A crack is a narrow opening or fracture, often found in surfaces like walls or rocks. Example: The earthquake caused cracks to appear in the walls of many buildings.Gas: Usage: Gas refers to a substance in a state that is neither solid nor liquid, such as oxygen or carbon dioxide. Example: The leak of a toxic gas from the factory caused several people to fall sick.As if: Usage: "As if" is a phrase used to compare something or express a resemblance. Example: The wind howled outside as if a storm was approaching.Ruin: Usage: Ruin refers to the state of being destroyed or severely damaged. Example: The abandoned castle was in a state of ruin, with only its walls standing.In ruins: Usage: "In ruins" means something has been completely destroyed or fallen into a state of decay. Example: After the earthquake, the once-thriving city lay in ruins.Percent: Usage: Percent is a unit of measurement representing a portion out of 100. Example: Fifty percent of the population voted in favor of the new law.Brick: Usage: A brick is a rectangular block made of clay or other materials, used for building walls or structures. Example: The old house was constructed using red bricks.Metal: Usage: Metal refers to a solid material that is typically hard, shiny, and has good electrical conductivity. Example: The roof of the building was made of corrugated metal sheets.Shock: Usage: Shock is a strong emotional or physical reaction to a sudden, unexpected event. Example: The news of the accident left everyone in shock.In shock: Usage: "In shock" means being in a state of extreme surprise, disbelief, or emotional numbness. Example: She was in shock after hearing about her friend's sudden death.Electricity: Usage: Electricity is a form of energy produced by the movement of electrons, commonly used for powering devices and lighting. Example: The power outage left the entire neighborhood without electricity.Trap: Usage: To trap means to catch or confine something or someone in a confined space. Example: The hikers were trapped in the cave due to a rockfall.Bury: Usage: To bury means to put something or someone in the ground and cover it with soil. Example: The archaeologists uncovered ancient artifacts buried deep in the earth.Breathe: Usage: To breathe means to inhale and exhale air, necessary for sustaining life. Example: The fresh mountain air made it easier to breathe.Revive: Usage: To revive means to bring back to life or consciousness. Example: The lifeguard performed CPR to revive the drowning swimmer.Revival: Usage: Revival refers to the act of bringing something back to life or popularity. Example: The classic play received a revival on Broadway, attracting a new audience.Effort: Usage: Effort is the exertion of physical or mental energy to accomplish something. Example: With great effort, they managed to complete the challenging task.Unify: Usage: To unify means to bring together or combine to form a single unit or entity. Example: The treaty aimed to unify the two neighboring countries.Wisdom: Usage: Wisdom refers to the ability to apply knowledge and experience to make sound judgments and decisions. Example: The elder shared her wisdom with the younger members of the community.Context: Usage: Context is the circumstances or information that surround a particular event or situation and give it meaning. Example: Without proper context, the statement can be easily misunderstood.Suffer: Usage: To suffer means to experience pain, distress, or hardship. Example: The victims of the natural disaster suffered immense losses.Volcano:Usage:A volcano is a geological formation that results from the eruption of molten rock (magma) onto the Earth's surface. It can also refer to the vent or opening through which this magma, volcanic ash, and gases are expelled. Example: Volcanoes can have a significant impact on the environment and surrounding communities.Erupt: Usage: Erupt" is a verb that means to burst forth or release suddenly, often with great force or violence. It is commonly used to describe volcanic activity when a volcano releases magma, ash, and gases onto the Earth's surface. Example : The volcano erupted, sending a plume of ash and smoke high into the sky.Supply: Usage: Supply refers to the quantity of something available for use or distribution. Example: The stores quickly ran out of supplies during the hurricane preparation.Typhoon: Usage: A typhoon is a tropical cyclone that occurs in the Pacific region. Example: The typhoon caused widespread destruction and flooding in the coastal areas.Hurricane: Usage: A hurricane is a powerful tropical cyclone that forms in the Atlantic or eastern Pacific Ocean. Example: The hurricane's strong winds uprooted trees and damaged buildings.Survive: Usage: To survive means to continue to live or exist despite difficult circumstances. Example: With proper medical care, the patient managed to survive the life-threatening illness.Power: Usage: Power refers to the ability to control or influence others or the environment. Example: The strong winds knocked down power lines, causing a blackout.Tap: Usage: To tap means to lightly touch or strike something. Example: She tapped on the window to get her friend's attention.Pipe: Usage: A pipe is a long, tube-like structure used to convey liquids or gases. Example: The burst pipe flooded the basement of the house.Whistle: Usage: To whistle means to make a high-pitched sound by blowing air through pursed lips. Example: The coach used a whistle to signal the start of the game.Emergency: Usage: An emergency is a situation that requires immediate action to prevent harm or damage. Example: The hospital was well-prepared to handle the influx of patients during theemergency.Calm: Usage: Calm refers to a state of tranquility or lack of agitation. Example: After the storm passed, the sea returned to a calm state.Aid: Usage:Aid is a noun that refers to assistance, support, or help provided to someone in need, especially during difficult or challenging circumstances. It can also be used as a verb, "to aid," which means to provide assistance or support. Example: The humanitarian organization provided food, medical aid, and shelter to the victims of the natural disaster.Kit: Usage: Kit" is a noun that refers to a set of tools, equipment, or items assembled together for a specific purpose or activity. It is often used to describe a collection of items that are needed or useful for a particular task or situation. Example: The first-aid kit in the office contained bandages, antiseptic wipes, and pain relievers.On hand: Usage: On hand is a phrase that means having something readily available or easily accessible at the current moment. It implies that the item or resource is within reach and can be used or accessed without delay. Example: The firefighters always keep first-aid supplies on hand in case of emergencies.Crash: Usage: A crash refers to a violent collision or impact. Example: The two cars collided, resulting in a severe crash.Sweep: Usage: To sweep means to clean or move away debris or dirt with a broom or a similar tool. Example: He swept the fallen leaves off the driveway.Sweep away: Usage: To sweep away means to remove or carry away something quickly and forcefully. Example: The floodwaters swept away everything in their path.Wave: Usage: A wave is a moving ridge or swell on the surface of water. Example: The surfer rode the wave all the way to the shore.Strike: Usage: To strike means to hit or deliver a blow. Example: The lightning strike hit the tree, causing it to catch fire.Deliver: Usage: To deliver means to transport or bring something to a specific location. Example: The courier will deliver the package to your doorstep.Summary: Usage: A summary is a concise and condensed version of information or a story. Example: The professor provided a summary of the key points at the end of the lecture.Effect: Usage: Effect refers to the result or consequence of a particular action or event. Example: The new policy had a positive effect on the company's profits.Length: Usage: Length refers to the measurement of something from one end to the other. Example: The length of the river is approximately 500 kilometers.。
龙卷风英文简介
A vehicle, trailer, or mobile home
Get out immediately and go to the lowest floor of a sturdy, nearby building or a storm shelter. Mobile homes, even if tied down, offer little protection from tornadoes.
►
►
A tornado is a violently rotating column of air which is in contact with both a cumulonimbus cloud or, in rare cases, a cumulus cloud base and the surface of the earth. Tornadoes come in many sizes but are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris.
►
Although tornadoes have been observed on every continent except Antarctica, most occur in the United States. They also commonly occur in southern Canada, south-central and eastern Asia, east-central South America, Southern Africa, northwestern and southeast Europe, Italy, western and southeastern Australia, and New Zealand
常见自然灾害英语词汇
常见自然灾害英语词汇Natural disasters are sudden, often catastrophic events that can cause significant damage to life and property. They can occur anywhere in the world, affecting people regardless of their age, gender, culture, or socioeconomic status. It is important to be prepared for these events and understand the potential risks in your area.Here is a list of common natural disasters and their corresponding English vocabulary:1. Earthquake: An earthquake is the result of the sudden release of energy in the Earth's crust that creates seismic waves. These waves can cause shaking and damage to buildings, roads, and other structures. Earthquakes are often measured in terms of magnitude, which refers to the amount of energy released.2. Tsunami: A tsunami is a series of waves caused by the displacement of a large volume of water, usually due toan earthquake or volcanic eruption. These waves can be extremely tall and destructive, causing flooding and damage to coastal areas.3. Flood: A flood occurs when an area is inundated with water, usually due to heavy rainfall or the overflow of a river or lake. Floods can cause significant damage to property and infrastructure, and can also pose a threat to human life.4. Hurricane: A hurricane is a type of tropical cyclone that forms over warm ocean waters. It is characterized by strong winds, heavy rainfall, and a low-pressure center. Hurricanes can cause extensive damage to coastal areas, including flooding, wind damage, and storm surge.5. Tornado: A tornado is a violent, rotating column of air that forms over land. Tornadoes are typically very small but can be extremely powerful, causing damage to buildings, trees, and other structures. Tornadoes are often accompanied by thunderstorms and can be difficult to predict.6. Volcanic eruption: A volcanic eruption occurs when magma or ash is ejected from a volcano. These eruptions can be explosive or non-explosive, and can cause significant damage to surrounding areas. Volcanic eruptions can also emit harmful gases and ash that can pose a threat to human health.7. Drought: A drought is a period of time when an area receives significantly less precipitation than normal, leading to water scarcity and environmental stress. Droughts can have a significant impact on agriculture, wildlife, and human settlements.8. Wildfire: A wildfire is an uncontrolled fire that occurs in natural areas such as forests, grasslands, or shrublands. Wildfires can be caused by natural factors such as lightning strikes or human activities such as campfires or arson. These fires can spread rapidly and cause significant damage to ecosystems and property.9. Blizzard: A blizzard is a severe snowstorm withstrong winds and reduced visibility. Blizzards can cause significant travel delays and disruptions, as well as damage to buildings and infrastructure.10. Mudslide: A mudslide occurs when water saturates soil or rock, causing it to lose stability and slide downhill. Mudslides can be particularly dangerous in mountainous areas and can cause significant damage to property and infrastructure.It is important to be aware of the potential for these natural disasters in your area and to take steps to mitigate their impact. Preparing an emergency plan, stockpiling essential supplies, and participating in community preparedness activities can help you and your family be ready in case of an emergency.。
龙卷风tonado
types of tornadoes include the landspout, multiple vortex tornado, and waterspout、dust devil 、Fire tornado 、 Gust front tornado......
landspout
They generally are smaller and weaker than supercellular tornadoes. Although the intensity of landsput is weaker, it still can bring severe damages and strong breeze.
Tornadoes come in many shapes and sizes, but they are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris and dust.
Tornado
By Ariel Xu
A tornado is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. They are often referred to as twisters or cyclones ,although the word cyclone is used in meteorology, in a wider sense, to name any closed low pressure circulation.
高中英语必修3课文翻译
What Is a Tornado?龙卷风是什么?A tornado is a rotating column of air from a thunderstorm to the ground.龙卷风是一种旋转的气流柱从一场雷雨在地上。
The most violent have winds of more than 400 kilometres per hour.最暴力的有的风速超过400公里每小时。
Almost all of them occur in the US, in the area from Texas in the southeast to South Dakota in the north.几乎所有的车都发生在美国,在该地区东南来自德克萨斯州到南达科塔州在北方。
Tornadoes can pick up cars, trains and even houses and put them down in the next street—or even in the next town.龙卷风可以捡到的汽车、火车,甚至的房屋,把它们记在接下来的street-or甚至在邻近的城镇。
They can take the fur off the back of a cat and the feathers off a chicken.他们能够获得皮毛从后面的那片羽毛,一只猫从鸡。
They can destroy houses, but leave the furniture inside exactly where it was.他们可以破坏房屋,但离开里面的家具到底在哪里。
On average, there are 800 tornadoes in the US each year, causing about 80 deaths and 1,500 injuries.平均来说,有800个龙卷风在美国每年造成约80人死亡,1500伤害。
有关自然灾害的英语短语
有关自然灾害的英语短语Natural disasters are events that occur naturally and can cause significant harm to life and property. They are usually caused by natural forces such as earthquakes, volcanic eruptions, hurricanes, floods, and tsunamis. Natural disasters are common in many parts of the world, and they can have devastating effects on people's lives and the economy. In this article, we will discuss some common English phrases related to natural disasters.1. Hurricane/cyclone/typhoon: These are all different names used to describe a large, rotating storm that develops in tropical areas. Hurricanes, cyclones, and typhoons can be extremely destructive, with strong winds and heavy rain causing widespread damage to homes, buildings, and infrastructure.2. Tornado: A tornado is a powerful, rotating column of air that reaches from the ground to the sky. They are typically formed in areas of low pressure and can be extremely destructive, causing damage to homes and buildings in their path.3. Earthquake: An earthquake is a sudden and violent shaking of the ground caused by the movement of tectonic plates. Earthquakes can be devastating, causing buildings to collapse, roads to crack, and landslides to occur.4. Flood: A flood is an overflow of water that submerges land that is usually dry. Floods can be caused by heavy rain, rapid snowmelt, or coastal storms. They can cause significant damage to homes, crops, and other infrastructure.5. Tsunami: A tsunami is a series of ocean waves caused by an underwater earthquake, volcanic eruption, or landslide. They can be extremely destructive, causing significant damage to coastal communities.6. Landslide: A landslide is the movement of rock, soil, or debris down a slope. Landslides can be triggered by heavy rain, earthquakes, or volcanic activity. They can cause damage to homes, roads, and other infrastructure.7. Wildfire: A wildfire is an uncontrolled fire that burns in natural areas such as forests, grasslands, or prairies. Wildfires can be caused by lightning strikes, humans, or natural events such as droughts. They can cause significant damage to wildlife, homes, and other structures.8. Drought: A drought is a prolonged period of abnormally low rainfall that can lead to water shortages, crop failures, and other economic and social impacts.9. Blizzard: A blizzard is a severe snowstorm with strong winds and heavy snowfall. They can cause damage to buildings, power lines, and other infrastructure.10. Heatwave: A heatwave is a prolonged period of excessively hot weather, often accompanied by high humidity. Heatwaves can cause heat exhaustion or other health problems.In conclusion, natural disasters are a common occurrence around the world, and it is important to be aware of the risks and dangers associated with these events. By understanding these common English phrases related to natural disasters, we can increase our awareness of potential hazards and take steps to keep ourselves and our communities safe.。
龙卷风英文简介
顶点的?softballsizehail垒球大小的冰雹垒球大小的冰雹?cumulonimbuscloud积雨云?cumulus积云?condensation缩合?debris碎片?ifany如有?trailingedge后缘?stationary静止的?waterspouts水龙卷?hail冰雹freight货运ditch沟沟depression洼地spawned催生的fatalities死亡人数freight货运ditch沟沟depression洼地spawned催生的fatalities死亡人数thankyou
How can I protect myself from a tornado?
► What
►
to do Beቤተ መጻሕፍቲ ባይዱore a Tornado
► ►
Listen to NOAA Weather Radio or to commercial radio or television newscasts for the latest information. Look for approaching storms Look for the following danger signs: Dark, often greenish sky Large hail A large, dark, low-lying cloud (particularly if rotating) Loud roar, similar to a freight train.
高中英语外研版必修1Module3Writing教学设计
高中英语外研版必修1Module3Writing教学设计【名师授课教案】1教学目标Teaching goals 教学目标1 Target language 目标语言a 重点词汇和短语pick up, put…down in…, take…off…, on average, cause deaths and injuries, affect three US states, vi olent winds of 120 kilometers per hour or more, be buried in …b 重点句式(1)A tornado is a rotating column of air from a thunderstorm to the ground.(2)On average, there are 800 tornadoes in the US each year, causing about 80 deaths and 1,500 injuries.2 Ability goals 能力目标Improve the students’ ability of reading for specific information3 Learning ability goals 学能目标(1) Find out the elements of a passage according to the description of a disaster.(2) Learn how to describe a disaster and know how to protect our environment.2学情分析学生阅读文章是目的性较差,不懂得从文章中把握结构和写作方法,以读促写是有效的写作训练方式3重点难点Teaching important point 教学重点1 Look for specific information.2 Find out the elements of a passage according to the description of a disaster.Teaching difficult point 教学难点1Improve the skills of describing a disaster with necessary elements.4教学过程4.1第一学时新设计。
极端天气龙卷风的英语作文
极端天气龙卷风的英语作文Extreme Weather: Tornadoes。
Introduction。
Extreme weather events have become increasingly common in recent years, causing significant damage and loss of life. One such extreme weather phenomenon is the tornado, a violent and destructive rotating column of air that is often accompanied by a funnel-shaped cloud. In this essay, we will explore the nature of tornadoes, their formation, and the devastating impact they can have on communities.Definition and Characteristics。
A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. They are typically characterized by a visible condensation funnel, which is the result of the water vaporpresent in the air being cooled and condensed by the low pressure and rapid air movement within the tornado. Tornadoes are known for their extreme wind speeds, whichcan reach up to 300 miles per hour (480 kilometers per hour) or more. These powerful winds, along with the debris that they pick up, make tornadoes a highly destructive force of nature.Formation。
龙卷风科学原理及现象
龙卷风科学原理及现象A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. 龙卷风是一股迅速旋转的空气柱，与地球表面和积云或在罕见情况下与积云底部接触。
Tornadoes are one of the most powerful and destructive natural phenomena on Earth, capable of causing immense damage to buildings and landscapes in a matter of minutes. 龙卷风是地球上最强大和破坏性的自然现象之一，能够在几分钟内对建筑和风景造成巨大破坏。
The formation of a tornado begins with a supercell thunderstorm, which is a type of thunderstorm characterized by a persistent rotating updraft known as a mesocyclone. 龙卷风的形成始于超级单体雷暴，这是一种特点是旋转上升气流的雷暴。
As the mesocyclone intensifies, a strong updraft creates a rotating column of air called a tornado vortex. 随着中气旋加强，强大的上升气流产生了一个叫做龙卷风涡旋的旋转空气柱。
The rotating column of air extends downwards from the mesocyclone and can vary in size from a few tens of meters to over a kilometer in diameter. 旋转的空气柱从中气旋向下延伸，尺寸可以从几十米到直径超过一公里不等。
龙卷风英语作文
龙卷风英语作文A tornado is a natural phenomenon that occurs when a powerful rotating column of air makes contact with the ground. It is a fascinating and often terrifying event that can cause significant damage and destruction. In this essay, I will describe the formation of a tornado, its effects on the environment, and the importance of preparedness.Formation of a TornadoTornadoes are born from severe thunderstorms known as supercells. These storms have a unique structure with a rotating updraft called a mesocyclone. When the updraft reaches the ground, it can form a tornado. The process begins with warm, moist air rising and cooling as it reaches higher altitudes. This creates a low-pressure area that draws in surrounding air, which in turn spins and intensifies the rotation.Effects on the EnvironmentThe impact of a tornado can be devastating. It can uproot trees, demolish buildings, and even lift cars and other heavy objects into the air. The force of a tornado is measured on the Enhanced Fujita Scale, which ranges from EF0 to EF5, with EF5 being the most destructive. Tornadoes can also create a vacuum effect, causing a sudden drop in air pressure that can lead to additional damage.Importance of PreparednessGiven the potential for destruction, it is crucial for communities to be prepared for tornadoes. This includes having a storm shelter or a safe room in homes and schools, and having a plan for where to go in case of a warning. Emergency drills and public awareness campaigns can help ensure that people know what to do when a tornado is approaching.ConclusionTornadoes are a dramatic display of nature's power. While they can be awe-inspiring, they also serve as a reminder of the importance of understanding and respecting the forces of nature. By studying tornadoes and taking steps to prepare for them, we can better protect ourselves and our communities from their potentially devastating effects.This essay provides a brief overview of tornadoes, their formation, impact, and the importance of being prepared for such natural disasters.。
我遇到龙卷风作文600字
我遇到龙卷风作文600字英文回答：A tornado is a violent and destructive rotating columnof air that is in contact with both the surface of theEarth and a cumulonimbus cloud. It is often referred to asa twister or a cyclone. Tornadoes can form in a variety of weather conditions, but they are most commonly associated with severe thunderstorms.Tornadoes typically have a narrow, funnel-shaped cloud that extends from the base of the storm cloud to the ground. The wind speeds within a tornado can reach up to 300 miles per hour, making them one of the most powerful and dangerous natural phenomena on Earth. Tornadoes can cause significant damage to buildings and infrastructure, andthey can also result in loss of life.The formation of a tornado begins when there is astrong updraft of warm, moist air within a thunderstorm. Asthe air rises, it starts to rotate due to wind shear, which is the change in wind speed and direction with height. If the rotation becomes strong enough, it can create a mesocyclone, which is a large-scale rotation within the thunderstorm. This mesocyclone can then produce a tornado.Once a tornado has formed, it can travel across the landscape, leaving a path of destruction in its wake. Tornadoes can vary in size and intensity, with some being relatively weak and short-lived, while others are large and long-lasting. The Enhanced Fujita Scale is used to classify tornadoes based on the damage they cause, ranging from EF0 (weakest) to EF5 (strongest).中文回答：龙卷风是一种破坏性强、旋转的气旋，与地表和积雨云接触。
危险天气的英语作文
危险天气的英语作文Dangerous Weather。
Weather is a natural phenomenon that affects our daily lives. Sometimes, weather can be unpredictable and dangerous. In this essay, I will discuss the differenttypes of dangerous weather and how we can prepare for them.One of the most dangerous types of weather is a tornado.A tornado is a rotating column of air that is in contactwith both the surface of the Earth and a cumulonimbus cloud. Tornadoes can cause significant damage to buildings, vehicles, and people. To prepare for a tornado, it is essential to have a plan in place. This plan should include a designated safe room in your home or a nearby shelter. It is also important to have a supply kit that includes non-perishable food, water, a first aid kit, and a battery-powered radio.Another dangerous type of weather is a hurricane. Ahurricane is a tropical cyclone that forms over the ocean and can cause strong winds, heavy rain, and flooding. To prepare for a hurricane, it is essential to have a plan in place. This plan should include a designated safe room in your home or a nearby shelter. It is also important to have a supply kit that includes non-perishable food, water, a first aid kit, and a battery-powered radio.Floods are also a dangerous type of weather. Floods can occur when there is heavy rainfall, melting snow, or a dam or levee failure. Floods can cause significant damage to buildings, vehicles, and people. To prepare for a flood, it is essential to have a plan in place. This plan should include a designated safe room in your home or a nearby shelter. It is also important to have a supply kit that includes non-perishable food, water, a first aid kit, and a battery-powered radio.Extreme heat is another dangerous type of weather. Extreme heat can cause heat exhaustion, heatstroke, and dehydration. To prepare for extreme heat, it is essential to stay hydrated by drinking plenty of water. It is alsoimportant to stay cool by staying in air-conditioned buildings or using fans. Wearing light-colored and loose-fitting clothing can also help keep you cool.In conclusion, dangerous weather can have a significant impact on our daily lives. It is essential to be prepared for these types of weather by having a plan in place and a supply kit ready. By being prepared, we can help ensure our safety and the safety of those around us.。
有关龙卷风的英文单词
有关龙卷风的英文单词A tornado is a type of weather phenomenon that involves a rotating column of air that can reach speeds of up to 300 miles per hour. Tornadoes can cause severe damage and even loss of life, and they are a common occurrence in certain parts of the world, such as the United States. Here are some key terms related to tornadoes:1. Tornado Formation - Tornadoes form when warm, moist air meets cool, dry air. This causes instability in the atmosphere, leading to the formation of thunderstorms. Tornadoes often form within these thunderstorms, as rising air creates a rotating column of air, or a vortex.2. Tornado Warning - When a tornado has been spotted or detected by weather radar, a tornado warning will be issued by the National Weather Service. This is a signal for people in the affected area to take immediate shelter and protect themselves from the dangerous winds.3. Fujita Scale - The Fujita scale is a rating system used to classify tornadoes based on their intensity, from F0 (weak) to F5 (extreme). The scale takes into account the damage caused by the tornado, including the strength of the winds and the extent of the destruction.4. Tornado Alley - Tornado Alley is a term used to describe the region of the United States where tornadoes are most common. This includes parts of Texas, Oklahoma, Kansas, Nebraska, and the Dakotas.5. Storm Chaser - A storm chaser is a person who actively seeks out tornadoes and other extreme weather events in order to study them. Some storm chasers use specialized vehicles and equipment to get close to tornadoes and gather data about their formation, strength, and behavior.6. Tornado Watch - A tornado watch is issued by the National Weather Service when conditions are favorable for tornado formation. This means that people in the affected area should be prepared to seek shelter if a warning is issued.7. Tornado Emergency - A tornado emergency is issued when a tornado has been spotted or detected and is causing significant damage and danger to people and property. This is a signal for people in the affected area to take immediate action to protect themselves and their loved ones.8. Tornado Damage - Tornadoes can cause a wide range of damage, including uprooted trees, destroyed homes and buildings, and overturned vehicles. The strength of a tornado and the amount of damage it causes will depend on a number of factors, including its intensity and the size of the affected area.9. Tornado Safety - It is important for people to take steps to protect themselves and their property during tornadoes. This may include seeking shelter in a basement or interior room of a building, away from windows and exterior walls. It is also important to stay informed about the latest weather conditions and warnings, and to have a plan in place for dealing with tornadoes.10. Tornado Relief - After a tornado has struck, it may be necessary for affected communities to receive assistance and support for recovery efforts. This may include emergency supplies, financial assistance, and volunteers to help with cleanup and rebuilding efforts.。
龙卷风的英语作文
In addition to the physical destruction caused by tornadoes, they can also have a profound impact on the mental and emotional well-being of those affected. The trauma of experiencing a tornado, losing property, or being displaced from one's home can have long-lasting effects on individuals and communities. It is important for affected individuals to receive the support and resources they need to recover from the emotional toll of a tornado.
龙卷风的作文
龙卷风的作文英文回答：A tornado is a violent, rotating column of air that extends from the base of a thunderstorm cloud to the ground. It is a destructive force of nature that can cause widespread damage and loss of life. Tornadoes are most common in the Great Plains of the United States, but they can occur anywhere in the world.Tornadoes are caused by the interaction of warm, moist air from the Gulf of Mexico and cold, dry air from the north. When these two air masses meet, they create a zoneof instability that can lead to the formation of thunderstorms. If the conditions are right, the thunderstorms can produce tornadoes.Tornadoes are classified on the Enhanced Fujita Scale (EF Scale), which rates tornadoes on a scale of 0 to 5based on their wind speed and damage potential. EF0tornadoes have winds of 65 to 85 mph and can cause minor damage, while EF5 tornadoes have winds of 200 mph or more and can cause catastrophic damage.Tornadoes can be extremely dangerous, and it is important to take precautions to stay safe when they are in the forecast. If you are in a tornado warning, you should seek shelter in a sturdy building or underground. Youshould also stay away from windows and doors, and be prepared to take cover if the tornado strikes.中文回答：龙卷风是一种剧烈旋转的气柱，从雷暴云底延伸到地面。
如何在龙卷风中生存英语作文
如何在龙卷风中生存英语作文A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and the stormy clouds above.This fierce windstorm is also often referred to as a whirl wind or twister.Most tornadoes are found in the Great Plains of the central United States, because it's an ideal environment for the formation of severe thunderstorms.In this area, known as Tornado Alley, storms are caused when dry cold air moving south from Canada meets warm moist air traveling north from the Gulf of Mexico.Tornados are hugely destructive forces of nature.If you find yourself face to face with one, quick thinking is needed.In terms of how much time you have to play with, if a tornado has been spotted by the weather radar, you need to seek shelter immediately.A basement or storm shelter underground is by far the safest place to be, but you may not have time to reach one, in which case you'll need to improvise and find the safest place possible.If you are at home when the storms hits, here is the advice:1. If you have a cellar, storm shelter, safe room or basement available, go immediately to that area.If none of these options are available to you, then you should get to the lowest level of your home.2. Find the nearest windowless interior room, such as a bathroom, closet or inner hallway.3. Stay as far from windows as possible –they will shatter when the storm hits.4. Go to the center of the room –corners tend to attract debris.5. Get under a sturdy piece of furniture; heavy table or desk, and hold on to it. Or a mattress if one is available.6. And protect your head and neck with a blanket, if possible.。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
A tornado is a rotating column of air from a thunderstorm to the ground, almost all of which occur in the US.
Hurricanes are strong tropicalstorms,which usually occur in the southern Atlantic Ocean, the Caribbean Sea and the Gulf of Mexico.
This is a story about the 1900 Galveston hurricane.
The most violent have winds of more than每小时400公里Tornadoes can （卷起）cars, trains and even houses and把它们扔下来in the next steet--or enen in the next town. They can- the fur - the back of a cat and the feathers -a chicken. They can- houses, but- the furniture inside exactly where it was原来的地方. On average平均起来, there are 800 tornadoes in the US each year, causing引起about 80 deaths and 1,500 injuries. The worst tornado of all time occurred in 1925, affecting 影响three US states: Missouri, Illinois and INdiana. By the time it ended,到它结束时more than 700 people had been killed and 2,700 had benn injured.
The worst hurricane disaster of all time有史以来occurred on the 8th September 1900 in Galveston, Texas. Winds of 200 kilometres per hour and five-metre high 5米高waves hit the city.
By the late 1890s, he had moved to Galveston, where he died in 1898, a year before the hurricane struck.袭击。