一TheAdvantagesandDisadvantagesofLivinginthe21stcentury(生活在21世纪的优缺点)Livinginthe21stcenturyofferscertainadvantages,suchasahigherstandardofliving,butitalsohassomedisadvantages,suchasapollutedenvironment.Tobeginwith,mostpeoplenowhavemoremoneyforlesshardwork.Theyearnhighersalariesthanbeforeandenjoybettersocialsecurity,suchassocialwelfareforlaid-offworkersanddisabilityinsurance.Secondly,becauseoftheadvanceinmedicaltechnologywhichleadstobettermedicalcareandtreatment,people’slifeexpectancyislonger.Moreover,mostpeoplenowcanaffordtobuyfoodsofhighnutritionandenjoytheirleisuretime.Thirdly,modernconveniencessuchasradio,TV,internet,variousvehiclesandlabour-savingmachinesinthehome,allgreatlyfacilitatehumancommunication,transportationandhouseworkaswell.Nevertheless,livinginthe21stcenturyalsohasitsdisadvantages.Themostseriousoneistheincreasinglypollutedenvironment;airisfilledwithsmogandwateriscontaminatedbyiehemicalsfromfactories.Anothermaindisadvantageisthepersonalizationofhumanrelattonshipswhichmostlyresultfrompeople’sever-increasingcontactwithmachinesandnumbers.Stillonemoredisadvantageistheweakeningofspiritualvalues.Anundeniablefactisthatalargenumberofpeoplearesolelyinterestedinmaterialisticculture,whileneglectingspiritualcivilization.Limitedbyspace,wehavetoskiptheexamples.Inconclusion,althoughthe21stcenturyhasindeedgivenusalotofadvantages,itmaynothavemadeuswiser,becauseithasalsomadeourearthdirtier,ourpeoplelesshumane,andourspiritualiiifepoorer,Weshpuldcontinuetoenjoythebenefitsoftechnologicaladvancement,however,wemustmakeaconcertedefforttopreserveournaturalenvironmentforfuturegenerations.Moreover,weshouldtakethetimenowtomakeourlivesmoremeaningfulinanihcreasinglyimpersonal,computerizedworld.二Onresponsibility.(关于个人责任)WeChineseplaceahighvalueonresponsibility.ItistraditionaldealforusChinesetotakecareofourparents.Weowethemagreatdealforthelovetheygiveuswhilewearegrowingup.Itisright,then,whentheyaregettingolderwitheachpassingday,wehelpthemandseethattheyarewellcaredfor.Inthisway,wegivebacksomeoftheloveandcaretheyhavegiventous.AsloyalChinesecitizens,wemusthaveastrongsenseofresponsibilitytoourcountry.ItisourdutytokeepChinastrongintheeyesoftheworld.Therefore,weshouldstudyandworkhardforChina’sstrongnesswhichalsodependsontheadvancedscienceandtechnology.WemustbewillingtojointheArmyanddefendourcountry,wouldwebethreatenedbyaninvader(侵入者).Inshort,tobearesponsiblecitizen,wemustputourcountry’swelfareaboveourownneeds.Finally,wemustrememberthatwehavearesponsibilitytotheworldwelivein.Itisimportantthatwelearntoliveinpeacewiththeothernationsoftheworldandtoprotectourenvironment.Ifwecarryouttheseresponsibilities,wewillberespected(受尊敬的)citizensofourcountry.三如何看待挑战Forthousandsofyears,peoplehaveacceptedchallengesindifferentfields.Therearenotonlyphysicalchallenges,butalsosocialandintellectual(聪明的)challenges.Somepeoplerisk(冒…险)theirlivesinplayingsportstoseehowwelltheycando.Otherstrytomakeandinvent(发明)somethingtomakelifeeasier.Theyallenjoychallenges.Whydopeopleenjoythesechallenges?Thereareprobablymanyreasons.Oneiscuriosity.Theotheristhepersonalfeelingofsuccess,ofachievement,andnowadays,forsomepeople,itisabusiness.Today,westillhavemanychallengersbeforeus.Medicalsciencefacesthechallengesofconqueringmanydiseaseswhichstillattackhumanbeings.Engineersandplannersmustbuildnewciti...
