【TheancientcityisinKngyaocountyShanxiProvince.ThecitywallwasfirstbuiltduringtheZhouDynasty.Since1997，ithasbeenlistedasaWorldHeritageSite.NowPingyaocityistheonlyoneinChinacompletelyprotectedasitwas】
The ancient city isinKngyaocountyShanxiProvince.ThecitywallwasfirstbuiltduringtheZhouDynasty. Since1997，ithasbeenlisted as aWorldHeritageSite.Now PingyaocityistheonlyoneinChinacompletelyprotectedasitwasbuilthundredsofyearsago.
Theperimeter(周长)ofthissquarecityis6.4km-longandthecitywallistheearliestandlargestcitywallinChina.Itis12m-highwithawidthof5ms.Thewallwasbuiltwithearthandcoveredwithbricks.Outsidethecitywallthereisariver4m-wideand4m-deep.
Thereareseveralgatesofthecity，twoeachontheeastandwestandoneeachonthesouthandnorthside.Allthegateshavetwodoorseach.Thishasgiventhecitythename"TurtleCity"withthetwogatesonthesouthandnorthstandingfortheheadandtailoftheturtleandfourgatesontheeastandwestasthefourlegs.Thedoorsonthesouthandnorthstandoppositeeachotherliketheheadoftheturtleextending(延伸)outandtwowellsjustbeyondsoutherngatearelikeaturtle'stwoeyes.
LocatedonthetraderoutebetweenBeijingandXi'an，Pingyaodevelopedintoatradecenterwherethelocalpeoplesetupthenation'searliestbanks.ThesebankswerethefirstinChinatousechecks.
Severaloldcourtyardshavebeenturnedintomuseums，andmostofthemarehomesandofficesofPingyao'soldbanks.Oneofthemostunusualaspects(方面)ofavisithereisrealizingthatthisplacewasveryimportanttoChina'sfinancial(金融的)history.
根据短文内容，选择最佳答案。
( )1.HowmanygatesarethereinPingyaocity?
A.Four. B.Five.
C.Six. D.Seven.
( )2.WhichgateinPingyaocitystandsfortheheadoftheturtle？
A. Thegateonthenorth.
B. Thegateonthesouth.
C. Thegateontheeast.
D. Thegateonthewest.
( )3.Itcanbeinferredfromthelasttwo paragraphsthat
A. oldbanksinancientPingyaocityusedchecksonly
B. museumsinPingyaocityarenowusedforbankoffices
C. PingyaocitywasoneofthelargestcitiesinancientChina
D. Pingyaocity played animportantroleinancientChina'sfinance
( )4.Thepassagemainlytalksabout
A. theancientcity—Pingyao