高中英语教学案例分析:阅读表达专项训练【学案设计】第一节:阅读表达Themodernageisanageofelectricity
Peoplearesousedtoelectriclights,radios,televisions,andtelevisions,andtelephonesthatitishardtoimagine_____________withoutthem
Whenthereisapowerfailure,peoplegrope(摸索)aboutinflickeringcandlelight,carshesitateinthestreetsbecausetherearenotrafficlightstoguidethem,andfoodspoilsinsilentrefrigerators
Yet,peoplebegintounderstandhowelectricityworksonlyalittlemorethantwocenturiesago
Naturehasapparentlybeenexperimentinginthisfieldformillionsofyear
Scientistsarediscoveringmoreandmorethatthelivingworldmayholdmanyinterestingsecretsofelectricitythatcouldbenefithuman
Alllivingcellssendouttinypulsesofelectricity
Astheheartbeats,itsendsoutpulsesofrecord;theyformanelectrocardiogram,whichadoctorcanstudytodeterminehowwelltheheartisworking
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