下学期unit12reading高二英语课件
日期：2010-07-20 07:57
watchingTVneedselectricity，planes，Unit12FactandFantacyreadingWord-formationReading1pre-reading:Whocansaywhentheinventionsinthepicturesweremade?Electricrailwaywasinventedintheearlyyearsofthe20thcentury:ThomasEdisoninventedthelightbulbin1879Steam-poweredboatwasmadein1807Groupwork:Discussthequestions1Whenwaselectricitydiscovered?2Howwasitusedinthefollowingtwohundredyears?3Intheearly19thcentury，etc 1，electricityisveryimportanttousAfterelectricitywasdiscovered，peoplehadnoideawhattheinsideoftheearthmightlooklikeCanyouexplainwhatweknowaboutittoday?2，heatersneedelectricity，peopleuseittocontrolmachinesandproduceagreatnumberofproducts，electricityisveryusefulForexample，suchascars，peoplebegantouseittoservepeopleinmanyfieldsTakeindustryforexample，playingcomputersneedselectricity，weapons，Electricitywasdiscoveredin1600byGilbertElectricityisalsousedinagricultureWithelectricitypeoplecancontrolthetemperatureandhumiditytomakevegetablesgrowbetterInourdailylife，andevenourwatchesneedelectric，
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