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2012-2013学年度第二学期高二半期英语能力测试姓名得分PAGE\*MERGEFORMAT4阅读短文回答下列问题80%AAlexanderGrahamBellwasbornin1847inScotland,butwhenhewasyounghisfamilymovedtoBoston,USA.Hismotherwasalmostentirelydeaf,soAlexanderbecameinterestedinhelpingdeafpeoplecommunicateandindeafeducation.Thisinterestledhimtoinventthemicrophone.Hefoundthatbypressinghislipsagainsthismother'sforehead,hecouldmakehismotherunderstandwhathewassaying.Hebelievedthatoneshouldalwaysbecuriousandhismostfamoussayingwas:"Leavethebeatentrackoccasionallyanddiveintothewoods.Everytimeyoudoyouwillbecertaintofindsomethingthatyouhaveneverseenbefore.Followitup,exploreallaroundit,andbeforeyouknowit,youwillhavesomethingworththinkingabouttooccupyyourmind.Allreallybigdiscoveriesaretheresultofthought."Itwasthisexploringaroundproblemsandhisdynamicspiritthatledtohismostfamousinvention-thetelephonein1876.Bellneversetouttoinventthetelephoneandwhathewastryingtodesignwasamultipletelegraph.ThisoriginaltelegraphsentamessageoverdistancesusingMorsecode(aseriesofdotstappedoutalongawireinaparticularorder).Butonlyonemessagecouldgoatatime.Bellwantedtoimproveitsothatitcouldsendseveralmessagesatthesametime.Hedesignedamachinethatwouldseparatedifferentsoundwavesandallowdifferentconversationstobeheldatthesametime.Buthefoundtheproblemdifficulttosolve.Onedayashewasexperimentingwithoneendofastrawjoinedtoadeafman'seardrumandtheothertoapieceofsmokedglass,Bellnoticedthatwhenhespokeintotheear,thestrawdrewsoundwavesontheglass.Suddenlyhehadaflashofinspiration.Ifsoundwavescouldbereproducedinamovingelectricalcurrent,theycouldbesentalongawire.Insearchingtoimprovethetelegraph,Bellhadinventedthefirsttelephone!Bellwasfullyawareoftheimportanceofhisinventionandwrotetohisfather:"Thedayiscomingwhentelegraphwireswillbelaidontohousesjustlikewaterorgas–andfriendswilltalktoeachotherwithoutleavinghome."Thepatentwasgivenin1876,butitwasnotuntilfivedayslaterthatBellsenthisfirsttelephonemessagetohisassistantWatson.Thewordshavenowbecomefamous:"MrWatson-comehere-Iwanttoseeyou
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