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托福写作满分作文汇总为了让大家更好的准备托福考试,给大家一些托福写作范文,下面就和大家分享,来欣赏一下吧Electricity Themodern ageis anage ofelectricity.People areso usedto electriclights,radio,televisions,and telephonesthat itis hardto imaginewhat lifewould belike withoutthem.When thereis apower failure,people gropeabout inflickering candlelight,cars hesitatein thestreets becausethere areno trafficlights toguide them,and foodspoils insilent refrigerators.Yet,people beganto understandhow electricityworks onlya littlemore thantwo centuriesago.Nature hasapparently beenexperimenting inthis fieldfor millionof years.Scientists arediscovering moreand morethat theliving worldmay holdmany interestingsecrets ofelectricity thatcould benefithumanity.All livingcell sendout tinypulses ofelectricity.As theheart beats,it sends out pulsesof record;they forman electrocardiogram,which adoctor canstudy todetermine howwell theheart isworking.The brain,too,sendsoutbrain wa...。