英语必修5unit1Greatscientists(练习)--王兴祖Unit1Greatscientists阅读理解LewisHowardLatimerwasanAfricanAmericanscientistwhomademanyimportantscientificdiscoveries.LatimerwasborninChelsea,Massachusetts,in1848,toparentswhowereescapedslaves.Attheageof15,hejoinedtheUnionnavyduringtheCivilWar.Afterhismilitaryservicein1865,Latimerwasemployedasanofficeboyatthepatentattorneyoffice(专利代理事务所)ofCrosbyandGouldinBoston,wherehelearnedmechanicaldrawing.In1876,LatimerwashiredbyAlexanderGrahamBelltocreatethedrawingsnecessaryforapatentapplicationforBell'snewinvention,thetelephone.Latimercompletedthesedrawingsandrushedthemtothepatentoffice,wheretheyarrivedonlyafewhoursbeforethedrawingsofcompetitor.Thus,Bellsecuredthepatentforthetelephone.WhileworkingfortheUSElectricLightingCompany,Latimerandhisemployerslookedforawaytoimproveupontheincandescentlightbulb(白炽灯)thatwasbeingmarketedbyThomasEdison.Edison'slightbulbslastedonlyafewdays.Byinventingacardboardenvelopethatsurroundedthecarbonfilament(碳质灯丝)inthelightbulb,Latimerwasabletomakelightbulbslongerlastingandlessexpensive.Asaresult,manycitiessawelectricallightingasabetterandcleanerwaytolighttheirstreetsandhomes.CitieslikeNewYork,London,Montreal,andPhiladelphiasetupthiskindoflighting,andLatimerwassentouttoplanandbuildthelightingsystems.In1890,LatimerwashiredbyThomasEdisonattheEdisonElectricLightCompany.Therehemademoreimportantdiscoveriesandwroteawellknownbook.HewastheonlyAfricanAmericanmemberoftheEdisonPioneers,agroupofmenwhopracticallycreatedtheelectricindustry.Latimerinventedabathroomcompartment(车厢)fortrains,alockingrack(行李架)forhats,coatsandumbrellas,andanewimprovedbookholderforbookshelves.Hediedin1928.1.AccordingtoParagraph2,Latimer________.A.helpedBelldesignthetelephoneB.madecertainBellsecuredhispatentC.wastherealinventorofthetelephoneD.hadworkedforBell'scompetitor2.WeknowfromParagraph3thatLatimer________.A.madelightbulbsmuchsaferB.inventednewstreetlampsC.helpedEdisonwithhisinventionsD.improvedonEdison'slightbulbs3.Whatisthelastparagraphmainlyabout?A.Latimer'simportantachievementsinscience.B.HowLatimerbecameamemberofEdisonPioneers.C.ThewideinfluenceofThomasEdison.D.HowEdisonhelpedLatimerwithhiswork.4.WhichofthefollowingisTRUEaboutLatimer?A.Heworkedasanofficeboyattheageof20.B.HestartedtoworkforEdisoninhisthirties.C.Hisparentshadbeenslaves.D.Hediedattheageof90.1