买车

　　Asweknow,moreandmorefamiliesownacarnowadays.It'struethatacarhassomeadvantages.Itcantakesuseverywhereveryfast.Whenwebuymanythingsinamall,wecanputtheminacarandneedn'tcarrythemwithourhands.Butacarhassomeshortcomingstoo.Itusespetrol,anditletsoutharmfulgasesthatpollutetheair.Acarisveryexpensive,itcostsusalotofmoney.Forthesereasons,Iwon'tbuyacar.Ienjoytakingabus.

　　手机

　　Withtheimprovingofourlivingstandard,nowadays,almosteveryonecanaffordacellphone.Everycionhastwosides.Whenweareenjoyingthebenefitsthatcellphoneshavebroughtus,wearenowfacedmanyproblems.

　　Tostartwith,mobilesphoneshavebroughtusmanyconveniences.Withausingofaphone,wecansurfingontheInternetwheneverwelikewithoutopeningacomputer.What'smore,weareimformedofeverythingimportantwhenwecarryourcellphoneallthetime.Futermore,itcanalsohelpuswithsomelearning,beacusewecanlookupthewordinthedigitaldictionary.

　　Secondly,ourcellphonesstillcausesmanyseriousproblems.Ononehand,themostproblemiselectricwaveradiation,whichisbadforourhealth.Ontheotherhand,itwillaffectourlearningandworking.Forexample,Whenweareatanimportantmeetingwithanimportantpartner,ifyourcellphonerings,itwillinterruptthewholeenvironmentandthepartnerwillthinkyoudon'trespcethim.Anotherexampleiswhenyouarehavingaboringclassormeeting,thenyouwilltakeoutyourphonereadingnovels,surfingontheInternet,playinggames,allthestwilldistractyoufromgoodworking.