Educatinggirlsquitepossiblyoutputsahigherrateofreturnthananyotherinvestmentavailableinthedevelopingworld.Women’seducationmaybeanunusualfieldforeconomistsbutraisingwomen’scontributiontodevelopmentisactuallyasmuchaneconomicasasocialproblem.Andeconomicswithitsemphasisonmotivationprovidesanexplanationforwhysomanygirlscan’treceiveeducation.

Parentsinlow-incomecountriesfailtoinvestintheirdaughtersbecausetheydonotexpectthemtomakeaneconomiccontributiontothefamily:girlsgrowuponlytomarryintosomebodyelse’sfamilyandbearchildren.Girlsarethusseenaslessvaluablethanboysandarekeptathometodohouseworkwhiletheirbrothersaresenttoschool―thepredictionbecomesself-fulfillingtrappingwomeninaviciouscircle（恶性循环）oflackofattention.

Aneducatedmotherontheotherhandhasgreaterearningabilitiesoutsidethehomeandfacesanentirelydifferentsetofchoices.Sheislikelytohavefewerbuthealthierchildrenandcaninsistonthedevelopmentofallherchildrenensuringthatherdaughtersaregivenafairchance.Theeducationofherdaughtersthenmakesitmuchmorelikelythatthenextgenerationofgirlsaswellasofboyswillbeeducatedandhealthy.Theviciouscircleisthustransformedintoagoodcircle.

Fewwilldisagreewithitthateducatingwomenhasgreatsocialbenefits.Butithashugeeconomicadvantagesaswell.Mostobviouslythereisthedirecteffectofeducationonthewagesoffemaleworkers.Wagesriseby10to20percentforeachextrayearofschooling.Suchbigreturnsareimpressivebythestandardofotheravailableinvestmentsbuttheyarejustthebeginning.Educatingwomenalsohasanimportantinfluenceonhealthpracticesincludingfamilyplanning.

60．Theauthorarguesthateducatinggirlsindevelopingcountriesis_______.

A．troublesome B．rewarding C．labor-saving D．expensive

61．WhatdoestheunderlinedpartinParagraph2probablymean?

A．Girlswillreallymakealesseconomiccontributiontothefamily.

B．Girlswillbecapableofrealizingtheirowndreams.

C．Girlswilleventuallyreceivethesameeducationasboys.

D．Girlswillbeincreasing