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The new pool is _______the old one.
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Pierreisa25﹣year﹣oldpenguin企鹅attheCaliforniaAcadem
TheWaterWorldSwimmingPoolisopeneverydayfromeighto’
Experimentshaveprovedthatchildrencan1instructinswi
阅读理解阅读下面的材料从每小题所给的A.B.C.D.四个选项中选出最佳选项DearLizaIwill
Pierreisa25-year-oldpenguinattheCaliforniaAcademyo
Theworld’sfirstSkyPoolhasbeenuncoated曝光--andit’llg
本题程序中实现了一个生产者一消费者问题生产者产生一个随机数存入DataPool类中消费者从中取出数据
Ourneighbourhas__________ours.
twice a big swimming pool as
twice as big a swimming pool as
a swimming pool twice big as
twice as a swimming pool big as
TheWaterWorldSwimmingPoolisopeneverydayfromeighto’
本题程序中实现了一个生产者一消费者问题生产者产生一个随机数存入DataPool类中消费者从中取出数据
AlotofboysandgirlsinWesterncountriesarewearingthes
JohnsonlikesswimminginasmallrivernearhishousE.Butt
Pierreisa25-year-oldpenguinattheCaliforniaAcademyo
Experimentshaveprovedthatchildrencan__41__instruct
—Haveyoubeentothenewswimmingpool?Whatdoesitlooklik
the twice size of
as twice big as
twice as big as
twice more bigger than
Pierreisa25-year-oldpenguin企鹅attheCaliforniaAcadem
TheWaterWorldSwimmingPoolisopeneverydayfromeighto’
Thepoolwassoshallowthattheswimmerdivedinandhithis
Oppositemyhouseis______.Myten-year-oldsonoftengoes
a museum that is open on weekdays
a swimming pool that is designed for adults
a cinema which sells tickets at a lower price
a library which will be completed in two years
TheWaterWorldSwimmingPoolisopeneverydayfromeighto’
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Whatisthe’biggestcityintheworldThatis21cityhasthelargestpopulationThisseemslike22questiontoanswerbutactuallyitisn’t. It’sactuallyratherdifficulttosaywhichcities23thelargest.Therearetworeasonsforthisdifficulty.Firstofallitisn’teasytodetermineacity’sboundariesthatiswhereacityends.Nowadaysnearlyallcitieshavealarge24areaaroundthem.Sowhenwetalkaboutthepopulationofacityweoftenmeanthepopulationofthewholemetropolitanareaaroundthecity.Thatmeansthatit’sdifficulttodeterminewhatthepopulationofacityisbecauseit’sdifficulttodefinewhatacityis. Thesecondreasonthatitisdifficultto25thepopulationofdifferentcitiesisthis:itisalmostimpossibletoget26aboutthepopulationofallcitiesforthesameyear.ForexamplewemightgetanestimateofNewYork’spopulationin1979andan27ofMexicoCity’spopulationin1981.Sowereallycan’tcomparethenumbersbecausetheinformationisfor28differentyears.Andthepopulationofcitieschangesratherquicklyespeciallyinsomecases.ForexamplethepopulationofJakartaIndonesiamayincreaseby5%eachyearsothepopulationfigurewillchangeratherquickly. Sowecansaythattheseareourtwo29forcomparingthepopulationsofcities:oneit’sdifficulttodeterminethe30ofacityandtwoitisdifficulttogetaccurateinformation. 22
Hewasdisappointedtofindhissuggestions______.
Itseemsthatbeautyandwomenaretwins.Observeforyourself.AdsonfashionfloodTVscreenradioprogramsmagazinesandthestreets.Whethertheyhaverealizedornotwomenarebesieged包围byaseaoffashion.Theyaretaughttothinkthatwithoutbeautifulclothestheywillgrowoldandlosetheircharm.Sowhodarestoneglectdressingupatthecostoftheirappearanceandyouth ButIdonotagreewiththeopinionthatwomenhavetoshowtheirbeautythroughtheirlooks.Therichnessoftheirmindprovestobemorebeautifulandattractivethantheirlooks.Awomanwhohasexperiencedmanytroublesandmaybecalled"aunt"or"granny"canstillmaintainherbeautyifshehassuchexcellentqualitiesasknowledgeabilityakindheartandconcernforothers. Inadditionoldandyoungbeautifulanduglyarerelativeconcepts.Peoplewhokeepayoungmindwillneverfeelold.Curiousaboutnewthingsandeagertolearnmoretheykeepupwiththetide.Plainlydressedwomenmayhaveatypeofbeautywhichispureandreal. Readingandlearningisthebestwaytokeeponeyouthful.Goodbooksarefertilesoilwhichcanfeedtheflowerofone’sheartandlooks. Thewordrelativeinparagraph3mostprobablymeans
______thetemperature______waterturnsintosteam.
ManyvisitorsfindsthefastpaceatwhichAmericanpeoplemoveverytroubling.One’sfirstimpressionislikelytobethateveryoneisinarush.Citypeoplealwaysappeartobehurryingtogetwheretheyaregoingandareveryimpatientiftheyaredelayedevenforashortmoment. Atfirstthismayseemunfriendlytoyou.Peoplewillpushpastyouastheywalkalongthestreet.Youwillmisssmilesbriefconversationswithpeopleasyoushopordineawayfromhome.DonotthinkthatbecauseAmericansareinsuchahurrytheyareunfriendly.Oftenlifeismuchsloweroutsidethebigcitiesasistrueinothercountriesaswell. Americanswholiveincitiesoftenthinkthateveryoneisequallyinahurrytogetthingsdone;justascitypeopledoinTokyoSingaporeorParisforexample.ButWhentheydiscoverthatyouareastrangermostAmericansbecomequitekindlyandwilltakegreatcaretohelpyou.Ifyouneedhelpandsay"Iamastrangerhere.Canyouhelpme’Mostpeoplewillstopsmileatyouandhelpyoufindyouwayoransweryourquestions.Occasionallyyoumayfindsomeonetoobusyorperhapstoorushedtogiveyouhelp.Ifthishappensdonotbediscouraged气馁;justasksomeoneelse.MostAmericansenjoyhelpingastranger. IfyousaytoanAmericanthatyouareastrangertheremostprobablyhewill
Iinsistthatadoctor______immediately.
你的美国朋友史密斯访问中国后给你写了一封信请你以北京101中学的学生李明的名义按照来信内容用英文写一封回信史密斯在来信中提到1感谢你送他的中国邮票因为他弟弟集邮并回赠你一些美国邮票2他们在中国过得很愉快收到了许多礼物3想了解你的校园生活及你的爱好
Theyaskedmetohaveadrinkwiththem.IsaidthatitwasatleasttenyearssinceI______agooddrink.
Asitwasastormynight______peoplewenttoseethefilm.
Markwenttotheneighborhoodmeetingafterwork.Thearea’scitycouncilwoman女议员wasleadingadiscussionabouthowthequalityoflifewasdecreasing.Theneighborhoodfacedmanyproblems.Peopleweresupposedtosuggestsolutionstothecouncilwoman.ItwastoomuchforMark."Theproblemsaretoobig"hethought.Heturnedtothemannexttohimandsaid"Ithinkthisisawasteofmytime.NothingIcoulddowouldmakeadifferencehere." OnhiswaybackMarksawawomancarryingagroceryhagandbaby.Shewastryingtounlockhercarbutshedidn’thaveafreehand.AsMarkgotcloserherotherchildalittleboysuddenlydartedintothestreet.Thewomantriedtoreachforhimbutasshemovedherbagshiftedandgroceriesstartedtofallout.Markrantotaketheboy’sarmandledhimbacktohismother.Thenhepickedupthegrocerieswhilethewomansmiledinrelief."Thanks!"shesaid."You’vegotgreattiming适时!" "Justbeingneighborly友好的"Marksaid.Asherodehomeheglancedatthewallsofthebuspassedby.Ononeofthemwas"Smallactsofkindnessaddup."Marksmiledandthought"Maybethat’sagoodplacetostart./ InthefirstparagraphMarkthoughtthat
Idon'tregret______evenifitmighthaveupsether.
Markwenttotheneighborhoodmeetingafterwork.Thearea’scitycouncilwoman女议员wasleadingadiscussionabouthowthequalityoflifewasdecreasing.Theneighborhoodfacedmanyproblems.Peopleweresupposedtosuggestsolutionstothecouncilwoman.ItwastoomuchforMark."Theproblemsaretoobig"hethought.Heturnedtothemannexttohimandsaid"Ithinkthisisawasteofmytime.NothingIcoulddowouldmakeadifferencehere." OnhiswaybackMarksawawomancarryingagroceryhagandbaby.Shewastryingtounlockhercarbutshedidn’thaveafreehand.AsMarkgotcloserherotherchildalittleboysuddenlydartedintothestreet.Thewomantriedtoreachforhimbutasshemovedherbagshiftedandgroceriesstartedtofallout.Markrantotaketheboy’sarmandledhimbacktohismother.Thenhepickedupthegrocerieswhilethewomansmiledinrelief."Thanks!"shesaid."You’vegotgreattiming适时!" "Justbeingneighborly友好的"Marksaid.Asherodehomeheglancedatthewallsofthebuspassedby.Ononeofthemwas"Smallactsofkindnessaddup."Marksmiledandthought"Maybethat’sagoodplacetostart./ Theworddartedinparagraph5canbebestreplacedby
A.Verygoodthankyou.B.Notatall.C.Pleasetakeiteasy.D.AreyouallrightE.Excuseme.F.Thankyou!G.Don’ttakeitsomuchtoheart.H.CoffeepleasBetty:WhatafoolishthingI’vedone!Ibrokemywatch.Rose:It’sreallyunfortunate.______.Theremustbesomewaystomakeupforit.
WhatisyourfavoritecolorDoyoulikeyelloworangeorredIfyoudoyoumustbeanoptimist乐观者aleaderanactiveperson.DoyouprefergraysandbluesThenyouareprobablyquietshyandyouwouldratherfollowthanlead.Ifyoulovegreenyouarestrong-mindedanddetermined.Atleastthisiswhatpsychologists心理学家tellus.Theyhavebeenseriouslystudyingthemeaningofcolorpreference爱好andtheeffectthatcolorshaveonhumanbeings.Theytellusthatwedon’tchooseourfavoritecoloraswegrowup.Ifyouhappentolovebrownyoudidsoassoonasyouopenedyoureyesoratleastassoonasyoucouldseeclearly. Ayellowroommakesusfeelmorecheerfulandmorecomfortablethanadarkgreenone.Ontheotherhandblackisdepressing.Lightandbrightcolorsmakepeoplenotonlyhappierbutmoreactive.Itisafactthatfactoryworkersworkbetterharderandhavefeweraccidentswhentheirmachinesarepaintedorangeratherthanblackordarkgray. Rememberthatyouwillknowyourfriendsandyourenemiesbetterwhenyoufindoutwhatcolorstheylikeanddislike.Anddon’tforgetthatanyonecanguessalotaboutyourcharacterwhenyouchooseapieceofhandkerchief. Themainideaofparagraph2is
Romansoldiersinsomeplacesbuiltlongrowsofsignaltowers.Whentheyhadamessagetosendthesoldiersshouteditfromtowertotower.Iftherewereenoughtowersandenoughsoldierswithloudvoicesimportantnewscouldbesentquicklyoverdistance.InAfricapeoplelearnedtosendmessagesbybeatingonaseriesoflargedrums鼓.Eachdrumwaskeptwithinhearingdistanceofthenextone.Thedrumbeatsweresentoutinaspecialwaythatallthedrummersunderstood.Thoughthemessagesweresimpletheycouldbesentatgreatspeedforhundredsofmiles.IntheeighteenthcenturyaFrenchengineerfoundanewwaytosendshortmessages.Inthiswayapersonheldaflagineachhandandthearmsweremovedtovariouspositionsrepresentingdifferentlettersofthealphabet字母表.Itwaslikespellingoutwordswithflagsandarms.Overalongperiodoftimepeoplesentmessagesbyallthesedifferentways.HowevernotuntilthetelephonewasinventedinAmericainthenineteenthcenturycouldpeoplesendspeechsoundsoveragreatdistanceinjustafewseconds.Wecaninferfromthispassagethat______.
Itseemsthatbeautyandwomenaretwins.Observeforyourself.AdsonfashionfloodTVscreenradioprogramsmagazinesandthestreets.Whethertheyhaverealizedornotwomenarebesieged包围byaseaoffashion.Theyaretaughttothinkthatwithoutbeautifulclothestheywillgrowoldandlosetheircharm.Sowhodarestoneglectdressingupatthecostoftheirappearanceandyouth ButIdonotagreewiththeopinionthatwomenhavetoshowtheirbeautythroughtheirlooks.Therichnessoftheirmindprovestobemorebeautifulandattractivethantheirlooks.Awomanwhohasexperiencedmanytroublesandmaybecalled"aunt"or"granny"canstillmaintainherbeautyifshehassuchexcellentqualitiesasknowledgeabilityakindheartandconcernforothers. Inadditionoldandyoungbeautifulanduglyarerelativeconcepts.Peoplewhokeepayoungmindwillneverfeelold.Curiousaboutnewthingsandeagertolearnmoretheykeepupwiththetide.Plainlydressedwomenmayhaveatypeofbeautywhichispureandreal. Readingandlearningisthebestwaytokeeponeyouthful.Goodbooksarefertilesoilwhichcanfeedtheflowerofone’sheartandlooks. Accordingtotheauthorinordertostayyoungandattractivewomenshould
Romansoldiersinsomeplacesbuiltlongrowsofsignaltowers.Whentheyhadamessagetosendthesoldiersshouteditfromtowertotower.Iftherewereenoughtowersandenoughsoldierswithloudvoicesimportantnewscouldbesentquicklyoverdistance.InAfricapeoplelearnedtosendmessagesbybeatingonaseriesoflargedrums鼓.Eachdrumwaskeptwithinhearingdistanceofthenextone.Thedrumbeatsweresentoutinaspecialwaythatallthedrummersunderstood.Thoughthemessagesweresimpletheycouldbesentatgreatspeedforhundredsofmiles.IntheeighteenthcenturyaFrenchengineerfoundanewwaytosendshortmessages.Inthiswayapersonheldaflagineachhandandthearmsweremovedtovariouspositionsrepresentingdifferentlettersofthealphabet字母表.Itwaslikespellingoutwordswithflagsandarms.Overalongperiodoftimepeoplesentmessagesbyallthesedifferentways.HowevernotuntilthetelephonewasinventedinAmericainthenineteenthcenturycouldpeoplesendspeechsoundsoveragreatdistanceinjustafewseconds.AccordingtothispassagetheRomanwayofcommunicationdependedverymuchon______.
A.Verygoodthankyou.B.Notatall.C.Pleasetakeiteasy.D.AreyouallrightE.Excuseme.F.Thankyou!G.Don’ttakeitsomuchtoheart.H.CoffeepleasXiaoLi:I’msorryProfessorLiu.Ihavetobelateagain.Ijusthadacaraccident.Professor:WhatAnaccident!______
ManyvisitorsfindsthefastpaceatwhichAmericanpeoplemoveverytroubling.One’sfirstimpressionislikelytobethateveryoneisinarush.Citypeoplealwaysappeartobehurryingtogetwheretheyaregoingandareveryimpatientiftheyaredelayedevenforashortmoment. Atfirstthismayseemunfriendlytoyou.Peoplewillpushpastyouastheywalkalongthestreet.Youwillmisssmilesbriefconversationswithpeopleasyoushopordineawayfromhome.DonotthinkthatbecauseAmericansareinsuchahurrytheyareunfriendly.Oftenlifeismuchsloweroutsidethebigcitiesasistrueinothercountriesaswell. Americanswholiveincitiesoftenthinkthateveryoneisequallyinahurrytogetthingsdone;justascitypeopledoinTokyoSingaporeorParisforexample.ButWhentheydiscoverthatyouareastrangermostAmericansbecomequitekindlyandwilltakegreatcaretohelpyou.Ifyouneedhelpandsay"Iamastrangerhere.Canyouhelpme’Mostpeoplewillstopsmileatyouandhelpyoufindyouwayoransweryourquestions.Occasionallyyoumayfindsomeonetoobusyorperhapstoorushedtogiveyouhelp.Ifthishappensdonotbediscouraged气馁;justasksomeoneelse.MostAmericansenjoyhelpingastranger. Intheauthor’sopinion
Markwenttotheneighborhoodmeetingafterwork.Thearea’scitycouncilwoman女议员wasleadingadiscussionabouthowthequalityoflifewasdecreasing.Theneighborhoodfacedmanyproblems.Peopleweresupposedtosuggestsolutionstothecouncilwoman.ItwastoomuchforMark."Theproblemsaretoobig"hethought.Heturnedtothemannexttohimandsaid"Ithinkthisisawasteofmytime.NothingIcoulddowouldmakeadifferencehere." OnhiswaybackMarksawawomancarryingagroceryhagandbaby.Shewastryingtounlockhercarbutshedidn’thaveafreehand.AsMarkgotcloserherotherchildalittleboysuddenlydartedintothestreet.Thewomantriedtoreachforhimbutasshemovedherbagshiftedandgroceriesstartedtofallout.Markrantotaketheboy’sarmandledhimbacktohismother.Thenhepickedupthegrocerieswhilethewomansmiledinrelief."Thanks!"shesaid."You’vegotgreattiming适时!" "Justbeingneighborly友好的"Marksaid.Asherodehomeheglancedatthewallsofthebuspassedby.Ononeofthemwas"Smallactsofkindnessaddup."Marksmiledandthought"Maybethat’sagoodplacetostart./ Thepassageismainlyabout
WhatisyourfavoritecolorDoyoulikeyelloworangeorredIfyoudoyoumustbeanoptimist乐观者aleaderanactiveperson.DoyouprefergraysandbluesThenyouareprobablyquietshyandyouwouldratherfollowthanlead.Ifyoulovegreenyouarestrong-mindedanddetermined.Atleastthisiswhatpsychologists心理学家tellus.Theyhavebeenseriouslystudyingthemeaningofcolorpreference爱好andtheeffectthatcolorshaveonhumanbeings.Theytellusthatwedon’tchooseourfavoritecoloraswegrowup.Ifyouhappentolovebrownyoudidsoassoonasyouopenedyoureyesoratleastassoonasyoucouldseeclearly. Ayellowroommakesusfeelmorecheerfulandmorecomfortablethanadarkgreenone.Ontheotherhandblackisdepressing.Lightandbrightcolorsmakepeoplenotonlyhappierbutmoreactive.Itisafactthatfactoryworkersworkbetterharderandhavefeweraccidentswhentheirmachinesarepaintedorangeratherthanblackordarkgray. Rememberthatyouwillknowyourfriendsandyourenemiesbetterwhenyoufindoutwhatcolorstheylikeanddislike.Anddon’tforgetthatanyonecanguessalotaboutyourcharacterwhenyouchooseapieceofhandkerchief. AccordingtothepassagewhichofthefollowingisNOTtrue
IwishI______youyesterday.
We______forherbecauseshenevercame.
ManyvisitorsfindsthefastpaceatwhichAmericanpeoplemoveverytroubling.One’sfirstimpressionislikelytobethateveryoneisinarush.Citypeoplealwaysappeartobehurryingtogetwheretheyaregoingandareveryimpatientiftheyaredelayedevenforashortmoment. Atfirstthismayseemunfriendlytoyou.Peoplewillpushpastyouastheywalkalongthestreet.Youwillmisssmilesbriefconversationswithpeopleasyoushopordineawayfromhome.DonotthinkthatbecauseAmericansareinsuchahurrytheyareunfriendly.Oftenlifeismuchsloweroutsidethebigcitiesasistrueinothercountriesaswell. Americanswholiveincitiesoftenthinkthateveryoneisequallyinahurrytogetthingsdone;justascitypeopledoinTokyoSingaporeorParisforexample.ButWhentheydiscoverthatyouareastrangermostAmericansbecomequitekindlyandwilltakegreatcaretohelpyou.Ifyouneedhelpandsay"Iamastrangerhere.Canyouhelpme’Mostpeoplewillstopsmileatyouandhelpyoufindyouwayoransweryourquestions.Occasionallyyoumayfindsomeonetoobusyorperhapstoorushedtogiveyouhelp.Ifthishappensdonotbediscouraged气馁;justasksomeoneelse.MostAmericansenjoyhelpingastranger. ManypeoplewhofirstvisittheUnitedStateswillfindthat
A．gate B．hate C．jade D．staff
A．child B．chef C．church D．chicken
Whatisthe’biggestcityintheworldThatis21cityhasthelargestpopulationThisseemslike22questiontoanswerbutactuallyitisn’t. It’sactuallyratherdifficulttosaywhichcities23thelargest.Therearetworeasonsforthisdifficulty.Firstofallitisn’teasytodetermineacity’sboundariesthatiswhereacityends.Nowadaysnearlyallcitieshavealarge24areaaroundthem.Sowhenwetalkaboutthepopulationofacityweoftenmeanthepopulationofthewholemetropolitanareaaroundthecity.Thatmeansthatit’sdifficulttodeterminewhatthepopulationofacityisbecauseit’sdifficulttodefinewhatacityis. Thesecondreasonthatitisdifficultto25thepopulationofdifferentcitiesisthis:itisalmostimpossibletoget26aboutthepopulationofallcitiesforthesameyear.ForexamplewemightgetanestimateofNewYork’spopulationin1979andan27ofMexicoCity’spopulationin1981.Sowereallycan’tcomparethenumbersbecausetheinformationisfor28differentyears.Andthepopulationofcitieschangesratherquicklyespeciallyinsomecases.ForexamplethepopulationofJakartaIndonesiamayincreaseby5%eachyearsothepopulationfigurewillchangeratherquickly. Sowecansaythattheseareourtwo29forcomparingthepopulationsofcities:oneit’sdifficulttodeterminethe30ofacityandtwoitisdifficulttogetaccurateinformation. 26
Whatisthe’biggestcityintheworldThatis21cityhasthelargestpopulationThisseemslike22questiontoanswerbutactuallyitisn’t. It’sactuallyratherdifficulttosaywhichcities23thelargest.Therearetworeasonsforthisdifficulty.Firstofallitisn’teasytodetermineacity’sboundariesthatiswhereacityends.Nowadaysnearlyallcitieshavealarge24areaaroundthem.Sowhenwetalkaboutthepopulationofacityweoftenmeanthepopulationofthewholemetropolitanareaaroundthecity.Thatmeansthatit’sdifficulttodeterminewhatthepopulationofacityisbecauseit’sdifficulttodefinewhatacityis. Thesecondreasonthatitisdifficultto25thepopulationofdifferentcitiesisthis:itisalmostimpossibletoget26aboutthepopulationofallcitiesforthesameyear.ForexamplewemightgetanestimateofNewYork’spopulationin1979andan27ofMexicoCity’spopulationin1981.Sowereallycan’tcomparethenumbersbecausetheinformationisfor28differentyears.Andthepopulationofcitieschangesratherquicklyespeciallyinsomecases.ForexamplethepopulationofJakartaIndonesiamayincreaseby5%eachyearsothepopulationfigurewillchangeratherquickly. Sowecansaythattheseareourtwo29forcomparingthepopulationsofcities:oneit’sdifficulttodeterminethe30ofacityandtwoitisdifficulttogetaccurateinformation. 24
Romansoldiersinsomeplacesbuiltlongrowsofsignaltowers.Whentheyhadamessagetosendthesoldiersshouteditfromtowertotower.Iftherewereenoughtowersandenoughsoldierswithloudvoicesimportantnewscouldbesentquicklyoverdistance.InAfricapeoplelearnedtosendmessagesbybeatingonaseriesoflargedrums鼓.Eachdrumwaskeptwithinhearingdistanceofthenextone.Thedrumbeatsweresentoutinaspecialwaythatallthedrummersunderstood.Thoughthemessagesweresimpletheycouldbesentatgreatspeedforhundredsofmiles.IntheeighteenthcenturyaFrenchengineerfoundanewwaytosendshortmessages.Inthiswayapersonheldaflagineachhandandthearmsweremovedtovariouspositionsrepresentingdifferentlettersofthealphabet字母表.Itwaslikespellingoutwordswithflagsandarms.Overalongperiodoftimepeoplesentmessagesbyallthesedifferentways.HowevernotuntilthetelephonewasinventedinAmericainthenineteenthcenturycouldpeoplesendspeechsoundsoveragreatdistanceinjustafewseconds.TheAfricanwayofcommunicationsentmessages______.
Whatisthe’biggestcityintheworldThatis21cityhasthelargestpopulationThisseemslike22questiontoanswerbutactuallyitisn’t. It’sactuallyratherdifficulttosaywhichcities23thelargest.Therearetworeasonsforthisdifficulty.Firstofallitisn’teasytodetermineacity’sboundariesthatiswhereacityends.Nowadaysnearlyallcitieshavealarge24areaaroundthem.Sowhenwetalkaboutthepopulationofacityweoftenmeanthepopulationofthewholemetropolitanareaaroundthecity.Thatmeansthatit’sdifficulttodeterminewhatthepopulationofacityisbecauseit’sdifficulttodefinewhatacityis. Thesecondreasonthatitisdifficultto25thepopulationofdifferentcitiesisthis:itisalmostimpossibletoget26aboutthepopulationofallcitiesforthesameyear.ForexamplewemightgetanestimateofNewYork’spopulationin1979andan27ofMexicoCity’spopulationin1981.Sowereallycan’tcomparethenumbersbecausetheinformationisfor28differentyears.Andthepopulationofcitieschangesratherquicklyespeciallyinsomecases.ForexamplethepopulationofJakartaIndonesiamayincreaseby5%eachyearsothepopulationfigurewillchangeratherquickly. Sowecansaythattheseareourtwo29forcomparingthepopulationsofcities:oneit’sdifficulttodeterminethe30ofacityandtwoitisdifficulttogetaccurateinformation. 28
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