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Answerthefollowingquestions1.Howwasonetelephoneconnectedwithanotherinthepast?2.Howisonetelephoneconnectedwithanothertoday?BythickheavymetalwiresByverythinglasspipesandsatelliteelectricalsignalselectricalsignalsHowdoesatelephonework?Whydidpeoplehavetowindthehandlebeforemakingacall?Whatdidthetelephoneoperatordo?Whataresatellitesusedfor?AmericaChinaelectricalsignalselectricalsignalsWhatwasthewaytosendsignalsinthepast?metalwireslightsignalslightsignalsHowtosendsignalsnow?thinglasspipestoonoisy!notclear!veryclearelectricalsignalselectricalsignalsconferencecallingABCDEcallwaitingABCABBcredirectionFindsomewordstocompletethesentences:1.Ifyoudon’tknowthetelephonenumberofacertainunit,youmaylookitupinthetelephoned________.2.Thiskindoffoodwills__________youupafteryourillness.3.Pleaser________alltheletterstothefollowingaddresses.irectorytrengthenedirect4.Wehaveplentyofrainhere,Itrainsf__________inthispartofthecountry.5.Youmustw______theclockonceaweek,oritwillstop.requentlyindCompletethefollowingsentences1.________________________________(他怎样到美国来的)wasamystery.2.____________________________________________(我们是否应该穿校服)hasnotbeendecided.3.Ididn’treceivethenews________________________________(会议时间推迟了）4.Theproblemis______________________________________________(电信号会变得越来越弱）astheytravelalongmetalwires.HowhecametoAmericaWhetherweshouldwearschooluniformsthatthemeetinghadbeen.delayedthatelectricalsignalsgetweakerandweakerIfyouhavegotenoughmoney,whichofthefollowingthingsdoyouwanttohavemost?Giveyourreasonsforthechoice.A.AmobiletelephoneB.AcarC.AcolourTVD.AcomputerHomework:1.Readthetextagainandagain2.Ex.1onPage127.