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1、第十八讲阅读理解（下）题一：七选五AreSocietiesAgingTooFast?Anagingsocietyisoneinwhichthepopulationofpeopleovertheageof60isincreasing.Theglobalpopulationatpresentisabout6billionwithIpersoninevery10aged60orabove・1Thiswillmeanthatforthefirsttimeinhumanhistorythepopulationofolderpersonswi
2、llbelargerthanthepopulationofchildren!Whatarethecausesofthispopulationchange?2Andanotheristhatbirthrateshavedroppedaspeople,especiallywomen,areeducated.MeasurestoslowpopulationgrowthlikeChina〃sone-childpolicy,havealsocontributedtoloweredbirthrates.Theincreaseintheaged
3、populationisnotjustaninterestingtrend,however,italsohassevereimplicationsforthefutureofglobaleconomies・Peopletraditionallyretireat65andliveongovernmentpensions.3Anotherconcernisthatasmedicalexpensesincreasewithage,thedemandsofthegrowingagedpopulationwilleventuallycaus
4、emedicalsystemstofacebankruptcy（破产）.4Theysuggestthatbecausepeoplearelivi.nglonger,theyoughttoworkIonger,whilegovernmentsneedtoestablishasoundsocialsecuritysystem・Theyalsosuggestthatindividualsstartsavingassoonaspossibletoensureafinanciallysecureretirement.Peopleshould
5、alsodevelopgoodhealthhabitsintheiryouthtoensureanactiveandproductiveoldage・5•ByfindingcuresfordiseaseslikeAlzheimer'sandcancer,medicalbillsandtheneedforcarewouldbedrasticallyreduced・Finally,animportantsteptoensureabrightfutureforallistodoawaywithnegativestereotypestha
6、tseevaluablemembersofsocietyonlyaspensionersorpatients.It"shightimewestoppedseeingagingasadiseaseandstartedplayingourpartsinsecuringthefutureofouragingsocieties・A.Duetoagingproblem,citiesarefacingmorechallenges・B.Expertsinsistthatstepsshouldbetakennowtoprepareforthefu
7、ture.C・Aspeoplegrowolder,ahugefinancialburdenwillbeplacedonthegovernment.D.Biomedicalresearchisanothertoolwecanusetodealwiththeproblemsofagingsocieties.E.Onereasonisthatdramatichealthadvanceshaveadded20yearstotheaveragelifeexpectancy.F.TheUnitedNationsprojectsthatby20
8、50,itwillbeIinevery5・G>Asisknowntoall,goodhabitsleadtogoodhealth・题二：七选五OnatypicalhotAugustdayinXianyouCounty,FujianProvinee,
