Nowadaysmoreandmorefamiliesownprivatecars.Privatecars,astheproductofmodemcivilization,havebeenplayingavitalroleinpeople'sdailyactivities.First,privatecarsareaconvenientmeansoftransportation.Youcangowhereveryoulike.Secondly,thereisnodoubtthatprivatecarswillhaveagreatimpactontheeconomicgrowth.Therapidcarindustrygrowthwillcontributemuchtokeepingthecountry'seconomygrowingatahigherrateinthenearfutrue.Buteverycoinhastwosides.Thedevelopmentoftheprivatecarswillbringaboutaseriesofproblems.Forexample,thepollutedairgivenoffbycarswilldogreatharmtoourhealth,toomanyprivatecarswillleadtotrafficjamsandagreatdealofenergywillbewastedandsoon.SoIthinkweshouldtakeadvantagesofprivatecarsandmakethemserveusbetter.Meantimewehopethatsatisfactorysolutionstothesenegativeproblemswillbefoundsoon.现在,越来越多的家庭拥有私家车.私家车作为现代文明的产物,在人们日常生活中扮演了重要的角色.首先,私家车是很方便的交通工具,你可以开车到处跑；其次,毫无疑问私家车对经,济的增长起到很大的作用.在不远的将来,快速发展的汽车工业在保持国家以较高速度的增长方面将做出很大的贡献.当然,任何事物都有其两面性.快速发展的私家车会导致一系列问题.例如,汽车排出的废气对人体有很大的伤害,太多的私家车会导致交通阻塞,很多能源被浪费等.所以我认为我们．应当充分利用私家车的优势,更好地为我们服务.同时,我们也希望不久这些消极的问题将会得到圆满的解决.