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1、Passage1WhySomePeopleArePoorThepovertylineistheminimumincomethatpeopleneedforanacceptablestandardofliving./Peoplewithincomesbelowthepovertylineareconsideredpoor./Asthegeneralstandardoflivingrises,/thepovertylinedoes,too./Therefore,evenwithtoday’srelativelyhighstand
2、ardofliving,/about10percentofthepeopleintheUnitedStatesarebelowthepovertyline./Economistssuggestseveralreasons./Foronething,morethanhalfofthepoorpeoplearequalifiedtowork./Bylaw,childrenlessthan16yearsoldcannotworkinmanyindustries;/manycompaniesdonothirepeopleover65
3、yearsold,/whichisconsideredthenormalretirementage./Somepooradultsdonotlookforjobsforavarietyofpersonalreasons./Otherpoorpeoplelookforajobbutcan’tfindone./Manypooradultsneverwenttohighschool./Therefore,whentheylookforjobs,theyhavefewskillsthattheycanoffer.Passage3Ol
4、dAgeManypeoplemistakenlybelievethatoldageisatimeofincreasedillnessandloneliness./Infact,peopledonotsuddenlychange/when7theyreachtheageof60or65./Consequently,weshouldnotexpectmorementalillness/amongthe60to70agegroupthanamongthe50to60./Furthermore,althoughmoreparents
5、andtheirmarriedchildrenliveinseparatehouseholdsthaneverbefore,/thisisusuallybychoice./Itisnotbecausechildrennowtendtoneglecttheirparents/whentheybecomeold./Itisalsowrongtobelievethatoldageseriouslyaffectsaperson’smentalabilities./Thereisclearproofthatpeoplewhoweree
6、agertolearnandwhowelcomednewexperiencesintheirmiddleage,/continuetodosoinoldage./Itistruethatolderpeopletendtotakelongertolearnsomethingnewthanyoungpeople./Nevertheless,iftheyaregivensufficienttime,/theylearnaswellasyoungpeopledo.Passage4CarsintheFutureAsbigcarscau
7、semanyproblems,suchaspollution,shortageofparkingspace,crowdedtraffic,/scientistsarenowtryingtodesignsomesmallcars/thatmaysomedayreplacetoday’sbigautomobiles./Ifmorepeoplebegintodrivesuchcarsinthefuture,/therewillbelessairpollution./Therewillalsobemorespaceforparkin
8、gcarsincities,/andthestreetswillbelesscrowded./Threesuchcarscanfitinthespace/thatisnowneededforonecaroftheusualsize./The7littlecarswillcostmuchle
