【完形填空(共10小题，每小题2分，满分20分)Beforethe29thcenturythehorseprovideddaytodaytransportationintheUnitedStates.Trainswereusedonlyforlong-distancetransportation.Todaythecaristhemostpopularsortof】

　　完形填空(共10小题，每小题2分，满分20分)

　　Beforethe29thcenturythehorseprovideddaytodaytransportationintheUnitedStates.Trainswereusedonlyforlong-distancetransportation.

　　TodaythecaristhemostpopularsortoftransportationinalloftheUnitedStates.Ithascompletely 41 thehorseasameansofeverydaytransportation.Americansusetheircarsfornearly90percentofallpersonal 42 .

　　MostAmericansareabletobuycars.Theaveragepriceofa 43 madecarwas$2,500in1950,$2,740in1960andupto$4,750in1975.DuringthisperiodAmericancarmanufacturerssetabout 44 theirproducts.Asaresult,theyearlyincomeoftheaveragefamilyincreasedfrom1950to1975 45 thanthepriceofcars.Forthisreasonpurchasinganewcartakesasmaller 46 ofafamily’stotalearningstoday.

　　In1951proportionallyittook8.1monthsofanaveragefamily’s 47 tobuyanewcar.By1975itonlytook4.75 48 income.Inaddition,the1975carsweretechnicallysuperiortomodelsfrompreviousyears.

　　The 49 oftheautomobileextendsthroughouttheeconomyasthecarissoimportanttoAmericans.Americansspendmoremoney 50 theircarsrunningthanonanyotheritem.

　　41.A.denied B.reproduced C.replaced D.repeated

　　42.A.trip B.works C.business D.travel

　　43.A.quickly B.regularly &nb