阅读理解
TheThreeGorgesDamthelargestdamisalsothelargestengineeringprojectonthefaceoftheearth.ItaimstomakethemotherofallfloodstheYangtzeRiverintoatameriverandtogeneratepowerof181200megawattsforEasternandCentralChina.Itwillformahugedeepwaterlakeandmakeitpossiblefor10000tonoceangoingshipstosail1500milesinlandfromthePacifictothecityofChongqingmakingitoneoftheworld’slargestinlandports.
Constructionhasalreadystarted.Thedamwillbeabout6860metreswideand611feethighataspotcalledSandoupingnearYichang.
Itisobviousthatsuchagrandprojectwilldomuchgood.Itisthemostimportanttocontrolfloods.BybuildinghydropowerplantsChinawilloffermuchinenvironmentalprotection.
Howeversomescientistsdon’tagreetotheproject.TheysaythatChongqinganddozensofothercitiesalongtheriverwillpollutethereservoirwhichwilldestroytheecologicalbalanceandalsothesandfromupstreamwillformsand-bed.
TheThreeGorgesDamcouldbeconsideredwhenitisfinishedin2009the8thwonderoftheworld.
1．Whichisnotthepurposetobuildsuchahugedam?________.
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A．Topreventfloods
B．Toproduceelectricity
C．Toimprovethesailingconditions
D．Tomakeitawonder
2．ComparedwiththeHighDamatAswantheThreeGorgesDamis________metreswideratthebase.
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A．5880
B．588
C．680
D．880
3．Wheredoesthedamlie?________.
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A．NearChongqing
B．InYichang
C．NearYichang
D．InSandouping
4．Somescientistsfearthat________whenthedamisbuilt.
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A．theecologicalbalancewillbedestroyed
B．largeshipswilldestroythedam
C．theYangtzeRivermaybetoocrowded
D．theamountofelectricitywillnotbeasmuchasexpected
5．Whichofthefollowingisnottrueaccordingtothepassage?________.
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A．ChinawillbeabletodependontheYangtzeRiverthethirdlargestriverintheworldforelectricity
B．Chongqingwillbecomeoneoflargestinlandportsintheworld
C．The