E
Themotorvehiclehaskilledanddisabledmorepeopleinitsbriefhistorythananybomborweaponeverinvented.Muchofthebloodonthestreetflowsessentiallyfromuncivilbehaviorofdriverswhorefusetorespectthelegalandmoralrightsofothers.Sothemassacre(大屠杀)ontheroadmayberegardedasasocialproblem.
Infacttheenemiesofsocietyonwheelsareratherharmlesspeoplejustordinarypeopleactingcarelesslyyoumightsay.Butitisaprinciplebothoflawandcommonmoralitythatcarelessnessisnoexcusewhenone’sactionscouldbringdeathordamagetoothers.Aminorityofthekillersgoevenbeyondcarelessnesstototalnegligence(疏忽).
Researchershaveestimatedthatasmanyas80percentofallautomobileaccidentscanbeattributedtothepsychologicalconditionofthedriver.Emotionalupsetscandistortdrivers’reactionsslowtheirjudgmentandblindthemtodangersthatmightotherwisebeevident.Theexpertswarnthatitisimportantforeverydrivertomakeaconsciousefforttokeepone’semotionundercontrol.
Yettheirresponsibilitythataccountsformuchoftheproblemisnotconfinedtodrivers.Streetwalkersregularlyviolate(违反)trafficregulationstheyareatfaultinmostvehiclewalkeraccidentsandmanycyclistsevenbelievethattheyarenotsubjecttothebasicrulesoftheroad.
Significantlegaladvanceshavebeenmadetowardssaferdrivinginthepastfewyears.Safetystandardsforvehiclehavebeenraisedbothatthepointofmanufacture(制造业)andthroughperiodicroad-worthinessinspections.Inadditionspeedlimitshavebeenlowered.Duetothesemeasurestheaccidentratehasdecreased.Buttheaccidentexpertsstillworrybecausetherehasbeenlittleornoimprovementinthewaydriversbehave.Theonlyrealandlastingsolutionsaytheexpertsistoconvincepeoplethatdrivingisaskilledtaskrequiringconstantcareandconcentration.Thosewhofailtodoallthesethingspresentathreattothosewithwhomtheysharetheroad.
1．Whatistheauthor’smainpurposeinwritingthispassage?
A．Toshowthatthemotorvehicleisaverydangerousinvention.
B．Topromoteunderstandingbetweencarelessdriversandstreetwalkers.
C．Todiscusstrafficproblemsandproposepossiblesolu