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Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,The Violence of Nature,reading and writing,Nature,Natural Disasters,flood,a lot of water in an area which is usually dry,thunderstorm,a lot of rain falling quickly,with loud noises and flashes of light,lighting,A flash of light which happens during a thunderstorm,hurricane,a very strong wind or storm,tornado,a column of air that turns very quickly,Task 1,According to the writing style of the passage,the purpose of it is to _,A.tell a story,B.present an opinion,introduce a thing,D.report a piece of news,What is a tornado?,Where does it occur?,How strong is it?,How often does it happen?,When did the worst tornado occur?,Where did the worst tornado occur?,What are the influence of the worst tornado?,Information about Tornadoes,a rotating column of air,in the US,more than 400km per hour,800 each year,1925,Missouri Illinois Indiana,700 deaths 2700 injured,Definition,Place,Power,Frequency,A typical example,Introduce a natural disaster,Task 2,Find out the words to describe a natural disaster,Nouns:,Verbs:,Adjectives:,Phrases:,1.Winds of 200 kilometers _(,每小时,)and five-meter-high waves hit the city.,2.There are _(,平均地,)six Atlantic hurricanes each year and they usually _(,影响,)the east coast of the US from Texas to Maine.,3.Hurricanes are strong tropical storms,and they usually _(,发生,)in the southern Atlantic Ocean,the Caribbean Sea and the Gulf of Mexico.,per hour,on average,affect,occur,Task 3,4.The disaster _(,杀死,)6,000 people in a population of 37,000 and _(,摧毁,)3,600 buildings.,5.There are_(,猛烈的,)winds of 120 kilometers per hour or more,which _(,造成,)huge waves,heavy rain and floods.,6.The worst hurricane disaster of all time _(,发生,)on the 8th September 1900 in Galveston,Texas.,killed,destroyed,violent,cause,occur,Task 3,a tidal wave/tsunami,cause,under,water earth,quake,speed,800 km/hour,frequency,every 6 or 7 years,place,the,Pacific and Indian,Ocean,the worst tsunami,Dec.26th.2004,Southeast Asia,290,000 deaths,tsunami,
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