文明开头句1.Beingpoliteisagoodtradition(传统)inourcountry.2.Nobodylikesapersonwhoisimpolite.3.It'simportantforustobepolite.4.Weshouldbeapolitestudent.中间句1.Asapolitestudent,weshouldn'ttalkfreelyinclass.2.Ifwehavequestions,weshouldputupourhands.3.Wealsoshouldn’tspeakloudlyduringthebreak.4.AndIthinkit’simpolitetobelateforclass.5.Whensomeoneisintrouble,weshouldn’tlaughatthem.6.Weshouldoftensay“please”,”thankyou”and“sorry”inourdailylife.7.Whenhe(she)takesabusandseesanoldmanorasickman,he(she)alwaysgiveshis(her)seattohim.8.He(she)doesn'tinterrupt(打断)otherpeoplewhentheyaretalking.9.Ideasofwhataregoodmannersarenotalwaysthesameindifferentregions(宗教).Forexample,peopleinWesterncountriesusuallykisseachothertoshowtheirgreetings(n问候),whereas(然而)inChina,kissinginpublicissomethingofunusualandsometimesberegardedas(被认作)impolitetosomebodyelse.结尾句1.Ifeveryoneispolitetoothers,theworldwillbemoreandmorebeautiful.2.Rememberthatitisalwaysrighttobekindandhelpfultoothers可用连词或者介词if,when,unless,but,and,because,so,as