Презентация "Tornadoes"

Tornadoes

Подлипаева О.Н .,

МАОУ СОШ № 24

г. Березники

Пермский край

К учебнику « New Millennium English-7 » Unit 4, lesson 5

Vocabulary

• rotating – вращающийся
• funnel – воронка
• reach – достигать
• ground – земля
• scale – шкала
• o ccur – происходить

What is a tornado?

• A tornado is a very strong, rotating wind. It looks like a funnel coming down from a storm cloud. When it reaches the ground, a tornado acts like a giant hoover.

How long do tornadoes last?

• Tornadoes can last from a few seconds to more than an hour.

How many tornadoes are there a year?

• There are about 800 tornadoes a year in the USA.

What is the speed of tornado winds?

• The speed of tornado winds can be from 72 to 300 mph(480 km/h).

What do the numbers F2 or F5 mean?

• The numbers are ratings of tornado wind speed. The letter F comes from the name of Dr T. Fujita, the scientist who created the scale for classifying tornadoes.

Tetsuya Fujita  

How do tornadoes form in the USA ?

• Most tornadoes form from thunderstorms. You need warm, moist air from the Gulf of Mexico and cool, dry air from Canada. When these two air masses meet, they create instability in the atmosphere.

Where can you see tornadoes most often ?

• 75 per cent of all tornadoes happen in the USA. Most tornadoes occur in “ Tornado Alley ” in the central part of the United States where the land is mostly flat.

Ex.3a, p.55. Say why a tornado is dangerous.

Tornado S afety

If you are at home during a tornado:

• Go to the lowest level of your house.
• Get away from the windows.
• Use your arms to protect head and neck.

If you are at work or school during a tornado:

• Go to the basement or to an inside hallway at the lowest level.
• Use your arms to protect head and neck.

If you are outdoors during a tornado:

• If possible, get inside a building.
• If shelter is not available or there is no time to get indoors, lie in a low-lying area or near a strong building.
• Use your arms to protect head and neck.

Использованные ресурсы:

• http://www.suplishare.com/wp-content/uploads/2013/11/xchlj-1385474228gn8k4.jpg
• http://www.eschooltoday.com/natural-disasters/tornadoes/how-do-tornadoes-form.html
• http://images5.fanpop.com/ image / photos /29700000/tornado-tornadoes-the-natural-disaster-29717869-640-427.jpg
• https://en.wikipedia.org/wiki/Tornadoes_in_the_United_States#/media/File:Tornado_Alley.gif
• http://ecocollaps.ru/wp-content/uploads/2014/10/2014-05-02-6.jpg
• https://upload.wikimedia.org/wikipedia/en/a/ae/Tornado_Damage_Nappanee.JPG
• http://kordon.in.ua/wp-content/uploads/2016/06/571e01ff7aeaa.jpg
• http://www.wallpaperscharlie.com/wp-content/uploads/2016/06/Tornadoes-HD-Wallpapers-1.jpg
• https://upload.wikimedia.org/wikipedia/commons/b/b9/Thetsuya_Theodore_Fijuta.jpg
• http://www.dosurvive.com/wp-content/uploads/tornadoDiagram.jpg

• https://im1-tub-ru.yandex.net/i?id=a4335c651c697fee5abcc4c63a26e4dd&n=33&h=215&w=323
• http://images.uncyc.org/commons/e/e0/Greensburg_kansas_tornado.jpg
• http://outoffear.com/wp-content/uploads/2013/05/Fear-of-Hurricanes-and-Tornadoes.jpg
• https://yandex.ru/images/search?img_url=http%3A%2F%2Fgetbg.net%2Fupload%2Ffull%2F569033_uragan_ssha_tornado_smerch_doroga_pole_2048x1260_(www.GetBg.net).jpg&text=tornadoes%20картинки&noreask=1&pos=7&lr=50&rpt=simage
• http://eo.ucar.edu/kids/dangerwx/tornado5.htm
• http://www.weatherwizkids.com/weather-tornado.htm

• Н.Н. Деревянко, С.В. Жаворонкова New Millennium English - 7 учебник английского языка для общеобразовательных учреждений – издательство «Титул», 2007 год.