From VOA Learning English, this is the Health & Lifestyle Report.
这里是VOA慢速英语健康生活报道。
Lightning is one of the most powerful weather forces to hit Earth. These huge bolts of electricity that strike during storms can cause destruction and death. Lightning can heat the air around it to temperatures five times hotter than the surface of the sun.
Lightning is very common. It is estimated that every second, about 100 lightning strikes hit the surface of the Earth. Experts at the website WeatherSTEM did the math and say thisadds up toabout 8 million strikes per day, and 3 billion hits each year!
In some parts of the world, for example India, summer lightning storms are very common. As the rainy season begins there, storms often cover most of the country's northern area. This is when lightning and thunderstorms happen most.
Lightning can be deadly. It is difficult to keep exact records on how many people die from lightning each year throughout the world. Some experts estimate that about 2,000 people die each year from lightning. Others say the number could be as high as 24,000.
The last week in June, Reuters news agency reported lightning strikes killed more than 100 people in two areas of India.
据路透社报道,六月最后一周,闪电袭击致印度两个地区超过100人死亡。
How to stay safe
如何保持安全
Later in this program, we will give you some tips on helping a lightning strike victim. But first, experts at the weather.gov website, give tips on staying safe if lightning comes your way.
If you are outside, experts say you shouldtake cover, which means finding a safe shelter for protection. During a lightning storm, no place outside is safe. If you hear thunder, lightning is close enough to strike you. Most lightning victims are in open areas or near a tree.
When you hear thunder, experts say, immediately try to move to safe shelter. Look for a strong, established building "with plumbing and electrical wiring." If lightning strikes this kind of building, the experts say, the plumbing and wiring will conduct the electricity better than the human body.
If such a building is not available, you can also seek shelter inside "an enclosed, metal-topped vehicle" with all the windows shut. You should stay in the safe shelter for at least 30 minutes after the last sounds of thunder are heard.
If you are outside during a lightning storm and there is no safe shelter, these actions may reduce your risk
如果雷暴期间你在室外,而且没有安全避难所,以下这些做法可能会降低风险:
:Immediately leave high land areas, such as hills or mountains.
立即离开高海拔地区,比如丘陵或山区。
Never lie flat on the ground.
绝对不要平躺在地上。
Never shelter under a tree sitting in the open.
不要躲在露天的树下。
Immediatelyget out ofany bodies of water andstay away fromthose areas.
立即离开水域,远离这些区域。
Stay away fromobjects that can conduct electricity, such as wire fences, tall structures, power lines or windmills.
远离能导电的物体,比如铁丝网、高层建筑、电线或风车。
Indoor lightning storm
室内雷暴
If you are indoors during a lightning storm, you could still be in danger. Again, weather.gov provides these tips.
如果雷暴期间你在室内,你仍可能处于危险之中。下列建议也由weather.gov网站提供。
Stay off wired phones, computers and other equipment that can put you in direct contact with electricity.
远离有线电话、电脑和其他可能让你直接接触电的设备。
Avoid any areas with running water.
避开任何有自来水的地方。
Remain indoors butstay away fromwindows and doors.
待在室内,但要远离门窗。
Do not lie on concrete floors or touch concrete walls.
不要躺在混凝土地板上或接触混凝土墙。
Aid for a lightning strike
闪电袭击的援助
Experts at the U.S. Centers for Disease Control and Prevention say that helping lightning strike victims can save their lives. It is safe to touch a lightning strike victim. People struck by lightning DO NOT carry a charge.
The CDC says to follow these four steps immediately to help a lightning strike victim
美国疾病控制和预防中心表示,要立即采取下列四个步骤来帮助闪电袭击受害者:
:1. Call for Help
1. 寻求帮助
Call for professional help immediately. It is safe to use a cell phone during a storm.
立即寻求专业人士的帮助。在暴风雨期间打电话是安全的。
2. Get to Safety
2. 转移到安全地方
Lightning may continue to be a danger. If necessary, move the victim to a safer location. However, do not move victims who are bleeding or appear to have broken bones.
Lightning often causes a heart attack. Check to see if the victim is breathing and has a heartbeat. Lightning may also cause other injuries such as burns, shock, and sometimes physical damage to the body.
If the victim is not breathing, immediately begin mouth-to-mouth resuscitation. If the victim does not have a pulse, start cardiopulmonary resuscitation, or CPR. Continue this until help arrives. Try to keep the victim warm to prevent hypothermia, or abnormally low body temperature.