(一)综合英语Unit 7 When Lightning Struck
综合英语（一） Unit 7 When Lightning Struck
ContentsBackgroundofthetextTextcomprehension?Textstructure4LanguagepointsAnalysisthelongsentencesinthetext
Contents 1. Background of the text 2. Text comprehension 3. Text structure 4. Language points 5. Analysis the long sentences in the text
7Backgroundofthetext1.What isaviation accident? Is airtravel safe?An aviation accident is defined as: Anoccurrence associated with the operation ofan aircraft which takes place between thetime any person boards the aircraft with theintention of flight and the time all suchpersons have disembarked, and in which: a)a person is fatally or seriously injured; b)theaircraft sustains damage or structural failure;or c) the aircraft is missing or is completelyinaccessible
1. What is aviation accident? Is air travel safe? An aviation accident is defined as: An occurrence associated with the operation of an aircraft which takes place between the time any person boards the aircraft with the intention of flight and the time all such persons have disembarked, and in which: a) a person is fatally or seriously injured; b) the aircraft sustains damage or structural failure; or c) the aircraft is missing or is completely inaccessible. 1. Background of the text
福BackgroundofthetextofAirisformtravelthesafest0.04available.Trainshavetransportationanddeaths for every 100 million milesautomobileshave0.94deathsper100millionmiles, while air travel has 0.01 deaths forevery 100 million miles traveled
Air travel is the safest form of transportation available. Trains have 0.04 deaths for every 100 million miles and automobiles have 0.94 deaths per 100 million miles, while air travel has 0.01 deaths for every 100 million miles traveled. 1. Background of the text
Backgroundofthetext2.CausesofaviationaccidentsApproximately 80 percent of all aviation accidents occurshortly before, after, or during takeoff of landing, and are oftendescribed as resulting from human error", mid-flight disastersare rare but not entirely unheard of. Among other things, thelatterhavebeen causedbybombs,mid-aircollisions andstructuralfailure.An accident survey of 1,843aircraft accidentsfrom 1950 through 2006 determined the causes to be asfollows: 53%: Pilot error; 21%: Mechanical failure; 11%:Weather; 6%: Sabotage (bombs, hijackings, shoot-downs); 8%:Other human error(air traffic controller error, improperlading ofaircraft, improper maintenance,fuel contamination,languagemiscommunicationetc.):1%:Othercause
2. Causes of aviation accidents Approximately 80 percent of all aviation accidents occur shortly before, after, or during takeoff of landing, and are often described as resulting from “human error”; mid-flight disasters are rare but not entirely unheard of. Among other things, the latter have been caused by bombs, mid-air collisions and structural failure. An accident survey of 1,843 aircraft accidents from 1950 through 2006 determined the causes to be as follows: 53%: Pilot error; 21%: Mechanical failure; 11%: Weather; 6%: Sabotage (bombs, hijackings, shoot-downs); 8%: Other human error (air traffic controller error, improper lading of aircraft, improper maintenance, fuel contamination, language miscommunication etc.): 1%: Other cause. 1. Background of the text