台风typhoon.docVIP

The weather is a set of all the phenomena in a given atmosphere at a given time. It also includes interactions with the hydrosphere [ha?dr?sf??]水界. The term usually refers to the activity of these phenomena over short periods (hours or days), as opposed to the term climate, which refers to the average atmospheric conditions over longer periods of time. On Earth, common weather phenomena include such things as wind, cloud, rain, snow, fog and dust storms. Less common events include natural disasters such as tornadoes龙卷风, hurricanes and ice storms. Almost all familiar weather phenomena occur in the troposphere [tr?p?(?)sf??; (the lower part of the atmosphere). in Chinese it said as 对流层。 In this morning ,I read a news about typhoon “菲特”,so far, At least 10 people have died and 4 are missing after the extreme weather hit Wenzhou of Zhejiang provinces this week. The typhoon or hurricane happen about 62 times a year on average , which has became the one of the most damage natural disaster to our country , and we did suffering a lot from it . So ,I will talk about the extreme weather phenomenon today. A hurricane is a very powerful type of cyclonic storm . The namehurricane is given to storm systems that develop over the Atlantic or the eastern Pacific Oceans. These same types of extreme cyclonic storms also occur in other oceans of the world , but are called by other names. In the northwest Pacific theyre called typhoons , and most of the rest of the world they are called cyclones. [sa?kl??ns] They all have one thing in common --- wind speeds that are usually greater than 75mph, which travel in an organized pattern, usually a circular pattern with an “eye of the storm”. how the typhoon begins? If the sun heats up ocean waters for a period of time, water can evaporate，and the hot air rises. With cold air constantly flowing to here ,and Due to the earth’s rotation, the air spin counterclockwise in Northern Hemisphere and clockwise in Southern Hemisphere The