高級(jí)英語(yǔ)Lesson-1-(Book-2)Face-to-Face-with-Hurricane-Camille課件PPT

1、Lesson 1Face to Face with Hurricane CamilleTropical storms Hurricane (the North Atlantic Ocean ): A Hurricane is a tropical storm in which winds attain speeds greater than 75 miles per hour (120 km). The term is often restricted to those storms occurring over the North Atlantic Ocean. Gulf of Mexico

2、Hurricane CamilleHurricane Camille(卡米爾號(hào)颶風(fēng)卡米爾號(hào)颶風(fēng)): The storm lashed Mississippi and Louisiana for two days, Aug.17-18,1969. The death toll was 258 and billions of dollars in damage.winds: 190 mph（m. p. h : miles per hour）Apartment building in Pass Christian, Mississippi before and after Camille. town

3、 center after Hurricane Camille in August 1969Hurricane Betsy: The- storm lashed Florida, Mississippi and Louisiana in 1965 from Sept. 7 - 10, causing the death of 74 persons.at the time it was the costliest hurricane in the history of the United States, and, as the first hurricane to cause over a b

4、illion dollars in damages, earned the nickname Billion-Dollar Betsy. How are Hurricanes Named?he National Weather Service of the United States has used girls names to identify hurricanes in the Atlantic, Caribbean, and Gulf of Mexico since 1953 and the names were given in alphabetical order.In 1980

5、a hurricane was given a mans name and was called Hurricane David. Often when an unusually destructive hurricane hits, that hurricanes name is retired and never used again. Since 1954, forty names have been retired. In 1996 Hurricane Luis was retired.Tropical stormsTyphoon/cycloneSimilar storms occur

6、ring over the West Pacific Ocean and China Seas are called typhoons.Those over the Indian Ocean are called tropical cyclones (旋風(fēng)).Tornado: a localized and violently destructive windstorm occurring over land characterized by a funnel-shaped cloud extending toward the ground 一般只指開(kāi)闊”陸地上“形成的”龍卷風(fēng)“，規(guī)模一般比h

7、urricane 小。 A storm is named when it reaches tropical storm strength with winds of 39 mph, and becomes a hurricane or typhoon when its wind speed reaches 75 mph. storm39 m.p.hHurricane/tycoon75 m.p.h.m. p. h : miles per hourthe Beaufort scale，蒲福風(fēng)力等級(jí)(英國(guó)海軍將領(lǐng)Francis Beaufort 1774-1857擬訂,分0-12級(jí)), defines wind as:0 clam breeze 01 light breeze 1-3 mph2 slight breeze 4-73 gentle breeze 8-124 moderate breeze 13185 fresh breeze 19246 strong breeze