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高考英语阅读理解专项练习题Mostpeopleusuallytraveledbyshipandtrainwhicharedrivenbysteamengine.Itplayedanimportantpartinmanykindsofvehiclesseveralscoresofyearsago.Whoinventedsteamengineandwhatunitscouldbeusedtomeasurethepowerofengine?Theword“horse-power”wasfirstusedtwohundredyearsago.JamesWattfromaworker’sfamilymadetheworldfirstwidelyusedsteamengine.Atfirst,hecouldn’ttellpeoplehowpowerfulitwas,becausetherewerenounitsatthattime.Wattdecidedtofindouthowmuchworkonestronghorsecoulddoinoneminute.Henamedthatunitonehorse-power.Inthiswayhecouldmeasuretheworkofhissteamengine.Hediscoveredthatahorsecouldlifta3300-poundweight10feetintotheairinoneminute.Hisenginecouldlifta3300-poundweight100feetinoneminute.Becausehisenginedidtentimesasmuchworkasthehorse,Wattcalleditatenhorse-powerengine.31.Themainideaofthepassageis__B_.A.JamesWattinventedthesteamengineB.JamesWattfirstusedhorse-powerasaunitofmeasureC.howmuchpowerdoesahorsehaveD.whyWatt’sengineiscalledatenhorse-powerengine32.ThestorysaysthatWattmadethefirst__D__.A.engineB.horse-powerengineC.usefulengineD.widelyusedsteamengine33.JamesWattwasbornin_A___.A.aworker’sfamilyB.afarmer’sfamilyC.ateacher’sfamilyD.adoctor’ssteamengine34.Wattwantedtofindawayto_D___.A.measuretheworkhisenginecoulddoB.tellpeoplehowpowerfulhisenginewasC.lifta3300-poundweightD.bothAandB35.Onehorse-powermeansthe__A__.A.workahorsecoulddoinaminuteB.weightahorsecoulddointenminutesC.workahorsecoulddointenminutesD.weightofonehorse