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1、Passage1WhySomePeopleArePoorThepovertylineistheminimumincomethatpeopleneedforanacceptablestandardofliving./Peoplewithincomesbelowthepovertylineareconsideredpoor./Asthegeneralstandardoflivingrises,/thepovertylinedoes,too./Therefore,evenwithtoday’srelativelyhighstandardofliving,/about10percentofth
2、epeopleintheUnitedStatesarebelowthepovertyline./Economistssuggestseveralreasons./Foronething,morethanhalfofthepoorpeoplearequalifiedtowork./Bylaw,childrenlessthan16yearsoldcannotworkinmanyindustries;/manycompaniesdonothirepeopleover65yearsold,/whichisconsideredthenormalretirementage./Somepooradu
3、ltsdonotlookforjobsforavarietyofpersonalreasons./Otherpoorpeoplelookforajobbutcan’tfindone./Manypooradultsneverwenttohighschool./Therefore,whentheylookforjobs,theyhavefewskillsthattheycanoffer.Passage3OldAgeManypeoplemistakenlybelievethatoldageisatimeofincreasedillnessandloneliness./Infact,peopl
4、edonotsuddenlychange/when7theyreachtheageof60or65./Consequently,weshouldnotexpectmorementalillness/amongthe60to70agegroupthanamongthe50to60./Furthermore,althoughmoreparentsandtheirmarriedchildrenliveinseparatehouseholdsthaneverbefore,/thisisusuallybychoice./Itisnotbecausechildrennowtendtoneglect
5、theirparents/whentheybecomeold./Itisalsowrongtobelievethatoldageseriouslyaffectsaperson’smentalabilities./Thereisclearproofthatpeoplewhowereeagertolearnandwhowelcomednewexperiencesintheirmiddleage,/continuetodosoinoldage./Itistruethatolderpeopletendtotakelongertolearnsomethingnewthanyoungpeople.
6、/Nevertheless,iftheyaregivensufficienttime,/theylearnaswellasyoungpeopledo.Passage4CarsintheFutureAsbigcarscausemanyproblems,suchaspollution,shortageofparkingspace,crowdedtraffic,/scientistsarenowtryingtodesignsomesmallcars/thatmaysomedayreplacetoday’sbigautomobiles./Ifmorepeoplebegintodrivesuch
7、carsinthefuture,/therewillbelessairpollution./Therewillalsobemorespaceforparkingcarsincities,/andthestreetswillbelesscrowded./Threesuchcarscanfitinthespace/thatisnowneededforonecaroftheusualsize./The7littlecarswillcostmuchle
