中国大学MOOC:NobodyreallyknowshowbigLagosis.Whatsindisputableisthatitsgrowingveryquickly.Betweennowand2050,theurbanpopulationofAfricacouldtriple.Yetcitiesinsub-SaharanAfricaarenotgettingricherthewaycitiesintherestoftheworldhave.MosturbanAfricansliveinslums（贫民窟）;migrantsareoftennotmuchbetteroffthantheywereinthecountryside.Why?Theimmediateproblemispoverty.MostofAfricaisurbanisingatalowerlevelofincomethanotherregionsoftheworlddid.Thatmeansthereslittlemoneyaroundforinvestmentthatwouldmakecitiesliveableandmoreproductive.Withoutupgradesandnewcapacity,bridges,roadsandpowersystemsareunabletocopewithexpandingpopulations.WiththeexceptionofSouthAfrica,theonlylightrailmetrosysteminsub-SaharanAfricaisinAddisAbaba,Ethiopia.Trafficjamleadstoexpenseandunpredictability,thingsthatkeepinvestorsaway.Inotherpartsoftheworld,increasingagriculturalproductivityandindustrialisationwenttogether.Moreproductivefarmersmeanttherewasasurplusthatcouldfeedcities;inturn,thatcreatedapooloflabourforfactories.ButAfricancitiesaredifferent.Theyaretoooftenbuiltaroundconsumingnaturalresources.Governmentisconcentratedincapitals,soisthemoney.MosturbanAfricansworkforasmallminorityoftherich,whotendtobeinvolvedineithercronyish（有裙带关系的）businessesorpolitics.SinceAfricanagricultureisstillbroadlyunproductive,foodisimported,consumingaportionofrevenue.Sowhatcanbedone?ThoughAfricancountriesarepoor,notallAfricancitiesare.InLagos,foreignoilworkerscanpayasmuchas65,000dollarsperyearinrentforamodestapartmentinasafepartoftown.Ifthatincomewerebettertaxed,itmightprovidetherevenueforbetterinfrastructure.Ifcityleadersweremoreaccountabletotheirresidents,theymightfavourprojectsdesignedtohelpthemmore.Yetevenasnewroadsarebuilt,newpeoplearrive.Whenacityspopulationgrowsby5%ayear,itisdifficulttokeepup.46.Whatdowelearnfromthepassageaboutcitiesinsub-SaharanAfrica?A.Theyhavemoreslumsthanothercitiesintheworld.B.Theyaregrowingfastwithoutbecomingricher.C.Theyareasmodernisedasmanycitieselsewhere.D.Theyattractmigrantswhowanttobebetteroff.47.Whatdoestheauthorimplyabouturbanisationinotherpartsoftheworld?A.Itbenefitedfromthecontributionofimmigrants.B.Itstartedwhenpeoplesincomewasrelativelyhigh.C.Itbenefitedfromtheacceleratedriseinproductivity.D.Itstartedwiththeimprovementofpeopledlivelihood.48.Whyissub-SaharanAfricaunappealingtoinvestors?A.Itlacksadequatetransportfacilities.B.Thelivingexpensestherearetoohigh.C.Itisonthewholetoodenselypopulated.D.Thelocalgovernmentsarecorrupted.49.InwhatwaydoestheauthorsayAfricancitiesaredifferent?A.Theyhaveattractedhugenumbersoffarmlabourers.B.Theystillrelyheavilyonagriculturalproductivity.C.Theyhavedevelopedattheexpenseofnature.D.Theydependfarmoreonforeigninvestment.50.WhatmightbeasolutiontotheproblemsfacingAfricancities?A.Loweringofapartmentrent.B.Bettereducationforresidents.C.Morerationaloverallplanning.D.Amoreresponsiblegovernment.

Asidefromperpetuating(使……持续存在)itself,thesolepurposeoftheAmericanAcademyandInstituteofArtsandLettersisto“foster,assistandsustainaninterest”inliterature,music,andart.Thisitdoesbyenthusiasticallyhandingoutmoney.Annualcashawardsaregiventodeservingartistsinvariouscategoriesofcreativity:architecture,musicalcomposition,theater,novels,seriouspoetry,lightverse,painting,sculpture.OneawardsubsidizesapromisingAmericanwriter’svisittoRome.ThereisevenanawardforaverygoodworkoffictionthatfailedcommerciallyoncewonbytheyoungJohnUpdikeforThePoorhouseFairand,morerecently,byAliceWalkerforInLoveandTrouble. Theawardsandprizestotalabout$750,000ayear,butmostofthemrangeinsizefrom$5,000to$12,500,awelcomesumtomanyyoungpractitionerswhoseworkmaynotbringinthatmuchmoneyinayear.Oneoftheadvantagesoftheawardsisthatmanygotothestrugglingartists,ratherthantothosewhoarealreadysuccessful.MembersoftheAcademyandInstitutearenoteligible(有资格的)foranycashprizes.Anotheradvantageisthat,unliketheNationalEndowmentfortheArtsorsimilarinstitutionsthroughouttheworld,thereisnogovernmentmoneyinvolved. Awardsaremadebycommittee.EachofthethreedepartmentsLiterature(120members),Art(83),Music(47)—hasacommitteedealingwithitsownfieldCommitteemembershiprotateseveryyear,sothatnewvoicesandopinionsareconstantlyheard. ThemostfinanciallyrewardingofalltheAcademy-InstituteawardsaretheMildredandHaroldStraussLivings.HaroldStrauss,adevotededitoratAlfredA.Knopf,theNewYorkpublishinghouse,andMildredStrauss,hiswife,werewealthyandchildless.TheylefttheAcademy-Instituteauniquebequest(遗赠):forfiveconsecutiveyears,twodistinguished(andfinanciallyneedy)writerswouldreceiveenoughmoneysotheycoulddevotethemselvesentirelyto“proseliterature”（noplays,nopoetry,andnopayingjobthatmightdistract).In1983,thefirstStraussLivingsof$35,000ayearwenttoshort-storywriterRaymondCarverandnovelist-essayistCynthiaOzick.By1988,thefundhadgrownenoughsothattwowinners,novelistsDianeJohnsonandRobertStone,eachgot$50,000ayearforfiveyears. ForwhomdidtheStrausscouplewishtheirfundcouldbeprovided?

Asidefromperpetuating(使……持续存在)itself,thesolepurposeoftheAmericanAcademyandInstituteofArtsandLettersisto“foster,assistandsustainaninterest”inliterature,music,andart.Thisitdoesbyenthusiasticallyhandingoutmoney.Annualcashawardsaregiventodeservingartistsinvariouscategoriesofcreativity:architecture,musicalcomposition,theater,novels,seriouspoetry,lightverse,painting,sculpture.OneawardsubsidizesapromisingAmericanwriter’svisittoRome.ThereisevenanawardforaverygoodworkoffictionthatfailedcommerciallyoncewonbytheyoungJohnUpdikeforThePoorhouseFairand,morerecently,byAliceWalkerforInLoveandTrouble. Theawardsandprizestotalabout$750,000ayear,butmostofthemrangeinsizefrom$5,000to$12,500,awelcomesumtomanyyoungpractitionerswhoseworkmaynotbringinthatmuchmoneyinayear.Oneoftheadvantagesoftheawardsisthatmanygotothestrugglingartists,ratherthantothosewhoarealreadysuccessful.MembersoftheAcademyandInstitutearenoteligible(有资格的)foranycashprizes.Anotheradvantageisthat,unliketheNationalEndowmentfortheArtsorsimilarinstitutionsthroughouttheworld,thereisnogovernmentmoneyinvolved. Awardsaremadebycommittee.EachofthethreedepartmentsLiterature(120members),Art(83),Music(47)—hasacommitteedealingwithitsownfieldCommitteemembershiprotateseveryyear,sothatnewvoicesandopinionsareconstantlyheard. ThemostfinanciallyrewardingofalltheAcademy-InstituteawardsaretheMildredandHaroldStraussLivings.HaroldStrauss,adevotededitoratAlfredA.Knopf,theNewYorkpublishinghouse,andMildredStrauss,hiswife,werewealthyandchildless.TheylefttheAcademy-Instituteauniquebequest(遗赠):forfiveconsecutiveyears,twodistinguished(andfinanciallyneedy)writerswouldreceiveenoughmoneysotheycoulddevotethemselvesentirelyto“proseliterature”（noplays,nopoetry,andnopayingjobthatmightdistract).In1983,thefirstStraussLivingsof$35,000ayearwenttoshort-storywriterRaymondCarverandnovelist-essayistCynthiaOzick.By1988,thefundhadgrownenoughsothattwowinners,novelistsDianeJohnsonandRobertStone,eachgot$50,000ayearforfiveyears. Whatdoesthepassagemainlydiscuss?

ThelessonsofstatefailureTraditionaldiplomacydealswithrisksofconflictbetweennation-states.Theserisksareofcoursestillpresent,butamorepervasivedangeristhatstateswillsimplycollapse.OfadozenorsoconflictsinAfricainrecentyears,few,ifany,haveinvolvedcross-borderaggression.Instead,bankruptandimpoverishedstateshaveimploded,thevacuumfillednotbyregimeswithnewlyconsolidatedpowerbutbybrutalviolenceengulfingcivilians.Thedisasterthenfansouttoneighboringcountries,andeventuallymuchfartherafield.Aspecial"taskforceonstatefailure"setupbyAmerica’’sCIAhasfoundthatthreevariablesaremostpredictiveofstatestabilityorinstability:theopennessoftheeconomy;democracy;andinfantmortality.Insub-SaharanAfrica,wheremuchofthepopulationlivesontheedgeofsubsistence,povertyandsloweconomicgrowth,oroutrightdecline,increasedthelikelihoodoffuturestatecollapse,therebytrappingthecountriesinaviciouscircleofpovertyandpoliticalinstability.Richcountries,ontheotherhand,tendtomaintainpoliticalstabilitywhich,inturn,promotesfurthereconomicdevelopment.Whencountrieswereclassifiedin1990bytheirstatusintheUnitedNationsHumanDevelopmentIndex(anindexofincome,literacyandhealth),high-developmentcountriesachievedrobustandstableeconomicgrowthduring1990-98,withaveragegrowthratesofaround2.3%ayearandwith35outof36countriesenjoyingrisinglivingstandards.Middle-developmentcountriesachievedaslightlylowergrowthrate,1.9%ayear,but7outof34countriesexperiencedoutrightdeclinesinlivingstandards.Thepoorestcountriesaveragednoeconomicgrowthatall,with15outof39experiencingfallinglivingstandards.Theflip-sidetothepovertytrap,however,isthatthegainsofdevelopmenttendtobesustained,oncecountriesbreakthroughtosufficientlevelsofincome,healthandliteracy.ConservativesinAmericaoftenaskwhyitmattersifanimpoverishedcountrycollapses.Theansweristhat,asidefromhumanitarianconcerns,crisesinsuchfarawayplacesoftensucktheUnitedStatesintocrisisaswell.Since1960,AmericahasbeendraggedintomilitaryconflictsinCuba,Thailand,Laos,Congo,Vietnam,theDominicanRepublic,Cambodia,Cyprus,Lebanon,Zaire,ElSalvador,Libya,Lebanon,Honduras,Nicaragua,Chad,Liberia,Bosnia,Somaliaand,morerecently,KosovoandColombia.Statefailures,orevenmilderstateinstability,havealsounderminedAmericanandglobalintereststhroughgloballytransmittedfinancialcrises,drug-trafficking,money-laundering,terrorism,thespreadofdiseasessuchasAIDSandmassrefugeeflows.Onthepositiveside,sustainedeconomicdevelopmentwouldcreatenewandpotentiallylargegainsfromtrade,aswellasmuch-neededcooperationinscienceandculture.Evenwhenaproblemiscorrectlyidentified,thereisastunningdisconnectbetweenriskandactioninAmerica’’sforeigneconomicpolicy.TheglobalAIDSepidemic,forexample,hasrecentlyandwiselybeenidentifiedasarisktothesecurityoftheUnitedStates.WhatactionhasbeentakenPresidentGeorgeBushhascalleduponAmericanstogivejust$200million,or70centseach,tothenewglobalfundtofightthedisease.Thefailuretomakeevenbasicinvestmentsinforeignpolicyhasbeenpervasive,andtheexamplesarelegion.Elevenyearsago,thelastprimeministerofunifiedYugoslavia,AnteMarkovic,launchedalast-ditchplanforeconomicstabilization.HeappealedtoEuropeandtheUnitedStatesforareductionindebt-servicingandothermodestfinancialsupport,butwasturneddownbythecreditorgovernments.Economicstabilisationwasundermined,andthishelpedSlobodanMilosovictogettheupperhand.Therest,astheysay,ishistory.InthepasttwoyearsAmericaandEuropeancountrieshavemadethesamemistakeinNigeria,animpoverishedandunstablecountryemergingfromyearsofcorruptdespotism.AlthoughNigeria’’soilearnings,netofproductioncostsandincometoforeignoilcompanies,amounttoaroundonly$90perNigerianayear,theUnitedStatesandEuropecontinuetoprevaricateoverurgentlyneededdebt-reductionbecausetheoilearningsareeasytosqueezefordebt-servicepayments.ThenewdemocraticregimeofPresidentOlesegunObasanjoisputatrisk,andLibya’’sleader,MuammarQaddafi,doesnotmissachancetoinflamemattersinNigeria’’sIslamicnorthernstates.Areaafterareaofneglectcanbecatalogued,fromthestrife-tornAndestoregionsaroundtheworldunderminedbyclimatechange.Throughallofit,theUnitedStatesbarelyliftsafinger.ItsomehowthinksthatsendingtheimpoverishedandunstablegovernmentsdownPennsylvaniaAvenuetogetloansfromtheIMFandtheWorldBankwilldothejob,butevensomestaffofthoseorganisationsnowpubliclyacknowledgethattheyhavefailed:makingloanswhengrantsareneeded,imposingexcessiveausteritybycollectingratherthancancelingdebts,andfailingtofindpartner-institutionswiththescientificexpertisetotackleunderlyingproblemsofdisease,lowfoodproduction,climaticstressandenvironmentaldegradation.

Exercise28 Directions:Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.Answerthequestionsbymarkingthecorrespondingletter. Isitcheapertobeawoman--oraman? A.Tocelebratethelaunchofgenderequalityinfinancialservices,Moneyexploredotherareasofspendingtofindoutifthere’sdiscrimination—andaftercrunchingthenumbersfoundthecostofbeingawomanis(mildlyunscientifically)6%morethanaman. Clothes B.Someretailerschargedifferentpricesfornearidenticalitems,dependingonwhetheryouareinthemen’sorthewomen’ssections.Youmightthinkthatmen’sclothesshouldcostmoreastheyarelikelytoinvolvemorematerial,andthisisthecaseatsomeshops-atUniqlo,forinstance，skinnyjeansare£5more,acashmeresweater£10more.However,otherretailerschargewomenmore:atNext,forexample,youwillpay£24fora“supersoftrobe”dressinggown,whileaman’sis£22.Women’sLevi’sjeansare£20morethanthe£70formen’s501s.Overall,wheretherewasadifference,ifyouboughtthesamenumberofidenticalgarments,youwouldpaymoreasaman.ThisseemstobeborneoutbytransactiondatafromBarclaycardwhichshowsthatamongstitscustomers,womenspendanaverageof£59atimeonclothes,whileformenitis£65. C.Butacrossthecourseofayear,womendohaveamuchbiggeroutlay(花费).ThelatestONS(OfficeforNationalStatistics)surveyonhouseholdspendingshowsthatin2011itwasanaverage£244ayearonmen’sclothes,againstanaverageof£458onwomen’sclothes.Women’sshoesaccountedfor£109ayear,whilemen’scost£68.Men’saccessoriescost£10ayear,whilewomen’s£21.Addthisallupandonaveragewomenarespending£588ayearontheirwardrobes,whilemenareshellingout(花大笔钱)£322. Single-sexspending D.TheONSalsohasdataforthecostofunderwear--anditmaynotbeasurprisethathouseholdspendingonwomen’sunderwearishigher,atanaverageof£57.20ayearversus£26formen.AtriptoMarks&Spencerestablishedthatmen’spantscostmorethanknickers,butwomenfaceadditionalcostsfortightsandbras.Asurveyearlierthisyearsuggestedtheaveragewomanhasninebrasinherunderweardrawer-evenifyougoforMarks&Spencer’sbasictwo-packofwhitebras,thatmeansanoutlayofalmost£70,andyouwillneedtoreplacethematsomepoint. E)Anotheritemwomenwillhavetobuypurelybecauseoftheirgenderissanitaryproducts.Theaveragewomanhasperiodsforatleast30yearsofherlifeandtheaveragecycleis28days,soshehas13ayear.Assumingherperiodlastsfivedaysandsheusesfoursanitarytowelsaday,that’s260ayear.Apacketof26AlwaysUltracosts£3.85inBoots,sothataddsupto£38.50ayear,oratleast£1155overalifetime.Fortampons(assuming20cost£1.99)theoutlayislikelytobearound£776over30years. F)Formanywomen,thecostofmake-upaddsaconsiderableamounteachmonth.TheONSsays£2.70aweek,or£140ayear,isspentoncosmetics.Menmightarguethattheyneedtobuyrazors(剃须刀),butsodomanywomen-andtheytendtocostmore.AtBoots,apackof10WilkinsonSwordrazorsaimedatthefemalemarketcost£4.39-£1.30morethanasimilarproductaimedatmen. Thecostofliving G)Thereareothercoststhataredictatedbynature.Women,forexample,areadvisedtohaveanaveragecalorieintakeof2000aday,whileamanneeds2500tomaintainhisweight,somenneed25%morecalorieseveryday.Thiswillnotnecessarilycost25%more-youcanbulkupamealbythrowinginmoreofthecheaperstaplessuchaspastaandriceetc.,butitwilladdtothecost.AsurveyofUSofficeworkersfoundthatmenwhoboughttakeawaysandwicheswerespendingalmostdoubleonluncheachweekthantheirfemalecounterparts. H)Womenarealsoadvisedtodrinkless-twotothreeunitsadayagainstthethreeorfourguidelineformen.Abottleofwineat13.5%alcoholcontains10.13units.Ifitcosts£4.99,assumingyouhavethemaximumeachday,asawomanyouwillspend£1.47andasaman£1.96.That’sabigassumption--manypeopledrinkless,somemore. I)Onebigthingtorememberisthatalthoughalcoholmaybeapreservative,womenarelikelytolivelonger,andwillthereforehavetomeettheirlivingcostsformoreyears.In2010theaveragelifeexpectancyatbirthwas82forwomenand78formen:thatmeansforkingoutforfood,heating,travel,entertainment,forfourextrayears.Thechangetoannuityratesbroughtinbythegenderdirectivemeansthatwomenwillgetthesameincomeasaman,regardlessofthefactthattheyareexpectedtolivelonger,buttheywillneedtofactortheseyearsofextraspendingintotheirothersavings. Haircuts J)Askmostmenhowmuchtheypayforahaircutandthey’llprobablysayaroundatennerattheirlocalbarber.Unlesstheyarefriendswithahairdresser,womenwillusuallyspendatleastdoublethat.Thiswillbeinpartbecausetheygotodifferentplacesfortheircuts,butevenifamanandawomanwalkedintothesamesalonthewomanwouldprobablyenduppayingmore. K)Manysalonshavestoppedpricingaccordingtosex,butsomequotedifferentcostsaccordingtothelengthofhair,whichmeanswomenarelikelytoendupspendingmore.InSupercuts,forexample,pricesareadvertisedasstartingfrom£13.95foracutand£16.95foracutandwash.Atmylocalsalonthehairdressersaidamanwouldpay£16.95or£18.95,whileacutandshampooofmyshoulder-lengthhairwouldcost£23.90. L)Bythispointyoumaywellbeshouting“Ineedtobuyrazorsfarmoreoftenthanmygirlfriend”or“Ihavetospendonmyhair,you’reabaldie(光头)”,andofcourseyourindividualcircumstanceswillaffectyourspendinghabitsandneeds-oryoumayhaveotherexamplesofinstanceswherepricingisdifferentforeachsex. 1.Intermsofasingledayoryear,menusuallyconsumemorealcoholthanwomen. 2.Morematerialusedmakesthemen’sclothesmoreexpensivethanwomen’satUniqlo. 3.People’sspendinghabitsandneedsaredifferentaccordingtotheirownsituations. 4.AccordingtotheONS,women’sspendingonunderwearismorethantwiceasmuchasthatofmen’s. 5.Razorsseemtobenecessaryforbothmenandwomen. 6.Thelongerlifeofwomenmeanstheirlifetimeexpensesmaygetbigger. 7.Onaverage,thatmenneedmorecaloriesthanwomenisthemaincauseofthedifferencebetweenmen’sandwomen’scostoffood. 8.Nomatterwhethermenandwomengotothesameordifferentplacesforhaircut,womenarelikelytospendmorethanmen. 9.Accordingtoasurveyonhouseholdspending,peoplespendmostonclothesratherthanshoesandaccessories 10.Insomesalons,thepriceofhaircutisnotsetbysexanymore,butsometimesbyhowlongthehairis.