英语翻译
AlexanderGrahamBell
Bellisfamousforteachingthedeaf.Heisbatwell-knownforhisinvention---thetelephone.
BellwasbornonMarch3rd,1847,inScotland.Hisfathertaughtthedeaftospeakandwrotetextbooksoncorrectspeech.WhenBellwasabouttwelve,hismotherbegantobecomedeaf.AfterBellfinishedhiscollege,hebecamehisfather’sassistant.Htaughtthedeaftospeakbyusinghisfather’stextbooks.Hisearlylifehadagreatinfluenceonhiscareer.
In1871,hewenttoBostontoteachatSarahFuller’sSchoolfortheDeaf.Itwasthefirstsuchschoolintheworld.Later,hewenttoworkatBostonUniversity.AsaprofessorofvoiceandspeechatBostonUniversity,hestartedconventionsforteachersofthedeaf.Hcontinuedtoteachthedeaffortherestofhislife.
From1873to1876Bellmadmanyinventions,includingthetelephone.Thereisastoryabouttheinventionofthetelephone.OnthenightofMarch10th,1876,afterdaysandnightsofhardwork,BellandhisassistantWatsoncheckedtheexperimentforthelasttimeintwodifferentrooms.Theroomswerefaraway.Byaccident,Bellsentthefirstsentence,“Watson,comehere;Iwantyou.”Watsonwasveryexcited.Heshouted,“Ihardyou.Iheardyou.”
TheygavethefirstdisplayofhowthetelephoneworkedtothepublicinBostontwomonthslater.ThedisplayinPhiladelphiaamonthlatermadthetelephonequicklybecomefamous.TheeBraziliankingDomPedroorderedonehundredtelephonesforhiscountry.
Besidesthetelephone,Bellinventedmanyotherthings.
Howmuchpaperdoyouuseeveryyear?Probablyyoucan’tanswerthatquestionquickly.In1900,theworld’suseofpaperwasaboutonekilogramforeachpersoninayear.Nowsomecountriesuseasmuchas50kilogramsofpaperforeachpersoninayear.SomedevelopedcountriesliketheUnitedStates,EnglandandSwedenusemorepaperthanothercountries.
PaperwasfirstmadinChina.InEgyptandtheWest,paperwasnotverycommonlyusedbeforetheyear1400.TheEgyptianswroteonpapyrus;Europeansusedparchmentformanyhundredsofyears.Parchmentwasverystrong.Itwasmadfromtheskinofsomeyounganimal.
TheChinesefirstmadepaperabout2000yearsago.ButChinesepaperwasnotmadfromthewoodoftre