阅读理解
VeniceoneofthecitiesinItalywasfoundedinA.D.811bythepeopleofMalamoccofleeing（逃跑）fromtheFranks.ItwassaidthattheywereguidedbypigeonscarryinglittlecrossesandsettledwherenowVenicelies.
Veniceisbuilton117islands.Ithas150canalsand400bridges.Thenarrowstreetswiththeirhistoricnamesarecoveredwithstonesbuthavenofootpaths.Theyaredottedwithflowershopsignsandlanterns.Shopsandpalacesstandbyside.Thebrickbridgesarehighenoughtoallowboatstopassfreelyunderthem.
ThecenterofpubliclifeisSt.Mark’sSquarewheretouristsandcitizenssitinthefamousFlorianandQuadricafestolistentomusicenjoyingthemselves.TheQuadriismorepopularbuttheFlorianfoundedin1720isthebest-knowncafebecauseithasreceivedsuchgreatpersonsasByron(anEnglishpoet)andGoethe(aGermanpoet).
UnfortunatelythespecialpositionofVeniceisthreatening（威胁）itsownexistence.Theterrain（地势）onwhichitisbuiltbegantosinkwhilethelevelofthesurroundingwatersisconstantlyrising.Howevermanymeasureshavealreadybeentakentopreventthecityfromsinking.
1.Inthesecondparagraphtheauthor______.
A.tolduswhobuiltthecityofVenice
B.showedupwhereVeniceis
C.describedwhatVeniceislike
D.talkedaboutwhyVeniceissurroundedbywaters
2.Whichofthefollowingshowstherightrelationship?（○=Italy;△=Venice;□=St.MarksSquare）
3.WhyistheFlorianthefamouscafe?Because______.
A.itappearedinByronandGoethe’spoems
B.itismoreclosetoSt.Mark’sSquarethantheQuadri
C.itwasfoundedin1720mucholderthantheQuadri
D.ByronandGoethewereonceitscustomers
4.Fromthearticlewecanseethat______.
A.manypeoplehavefledbecauseVenice’sexistenceisbeingthreatened
B.thelevelofthesurroundingwaterisconstantlyrisingbecausethecityofVenicebegantosink
C.thegovernmenthasalreadytakenmanymeasurestosavethecityfromgoingdown
D.manystepshavealreadybeentakentopreventtheterrainfromrising