六Longago,peopleusedbellsmoret1__theydotoday.Thepostmenusedtoringahandbellwhentheydeliveredletters.Fireengineshadbelli2_ofsirens(号笛).Peoplewhosoldthingscamepasthouses,ringingabellandshoutingw3_wasforsale.Everyvillagehaditschurchbelltoletpeopleknowitwast4togotochurch.Atnight,thisbellwasringingsothattravelerswouldfindthevillageinthed5_.Inmostcountriesbellswerehungr6_thenecksofanimals.Thebellshelpedownerstofindlostcowsorsheep.Today,inIndia,animalsstillwearbells.Nowbellsareusedl7__andless,Buzzers,sirensandhornshavet8__theirplace.Nowpeopletrytokeeptheoldbellsinschoolandchurchessot9theywillnotl10_theirbeautifulsoundsforever.七Lifegetsnoisiereverydayandveryf1peoplecanbefreefromnoiseofsomekindoranother.W2youliveinthecentreofamoderncityoravillagefaraway---thechancesthatyouwillbedisturbedbyplanes,cars,radios,etc.arealmosteverywhere.Weseemtobeusedtonoise,too.Somepeoplefeelquitelonelyw3backgroundmusicwhiletheyareworking.Testshaves4thattotalsilencecanbeveryfrighteningexperiences.H5,somepeopleenjoylisteningtopopmusicwhichisveryloud,andthiscandoharmtotheirears.Thenoiselevelinsomeplacesisfara6theusualsafetylevelforheavyindustrialareas.Onerecentreportaboutnoisesaidthata7alotofpeoplesaythatanynoisedisturbstheirattention,onlyasuddenc8inthelevelofnoisereallyaffectspeople’sattention.Itgoesontosaythatabackgroundnoise,whichdoesn’tchangetoomuch(music,forexample)mayevenhelppeopletopayattention.Peoplearetestingwaystomakelessnoise.Thereareevenlawsc9noise.Wecan’tr10tothe“goodolddays”ofpeaceandquiet.Butwecanmakelessnoise---ifweshoutloudlyenoughaboutit八Therearet1_manyaccidentsincities.Accidentsoftenhappenwhenpeoplec2theroadsorstreets.Readthepassagec_3__andlearntobecarefullateron.Becarefulwhenitisr4__.Manyaccidentshappenonrainydays.Peopleareinah5becausetheydon’twanttogetw6__.Theyoftencrosstheroadsquickly.Oftentheycan’tseec7__astheyholdtheirumbrellasinfrontoft8_.Rememberthatcarstakel9___timetostopwhentheroadsarewet.Whenitisraining,wemustbemoreandmorecareful,notl10__careful.九MostAmericanfamiliesaresmallerthanthefamiliesinotherc1__.ChildrenintheUSwilll2theirparents’homes.Whentheygrowup,theyusuallylivef3fromtheirparentsbecausetheywanttof4__goodjobs.Theyoftenw5__totheirparentsortelephonethem.Andtheyoftengotov6theirparentsonholiday.Parentsusuallylettheirchildrenchoosetheiro7__jobs.AmericansthinkitI8foryoungpeopletodecideontheirlivesbythemselves.Childrenareaskedtodosomeworkaroundtheirhouses.Andinmanyfamilies,Childrenarep9__fordoingsomehouseworksothattheycanlearnh10tomakemoneyfortheirownuse.十Someonesays:“Timeismoney,”butIthinktimeise1__moreimportantthanmoney.Why?Becausewhenmoneyisspent,wecangetitback.However,whentimeisg2_,itwillneverr3_.That’swhywemustn’twastetime.Itgoeswithoutsayingthatthet4_isusuallylimited(有限的).Evenasecondisveryimportant.Weshouldmakefulluseofourtimetodos5useful.Butitisapitythattherearealotofpeoplewhodonotknowthei6oftime.Theyspenttheirlimitedtimesmoking,drinkingandp7_.Theydonotknowthatwastingtimemeanswastingpartoftheirownl8__.Inaword,weshouldsavetime.Weshouldn’tl9__today’sworkfortomorrow.Rememberwehaven10timetolose.十一AndywasborninChina15yearsago.In2005,shem1totheUSAwithherfamily.Asahighschoolstudent,shehasfoundmanydifferencesb2ChineseandAmericans:Aboutmoney1)Americansliketospendm3thantheyhave,somanyofthemarealwaysindebt(欠债).ButChineseusuallyspendlessthanth...