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2011年北京密云县中考一《数学》模试题及答案.pdf

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2011_________________________________________________________1.6251201202.3.4.2B5.3241.3A3B311CD332.20102943050000A4.305108B.4.305106C.43.05107D.4.3051073.y=x3xA.x3B.x>3C.x3D.x<34631112ABCD93235586164161616101016108810168106ABCOABC70AOCA140B130C120D1107.mx26mx9mAm(x3)2Bm(x3)(x3)Cm(x4)2Dm(x3)28.4710...2011A.669B.670C.671D.6721649.m3(n2)20m2n210.11=352_______11.yx22x312.1305013.3274cos305x114x133210123a2115.2a2a2()a2.a24a216.ABCDAEBDCFBDEFBAEDCF.17.4037010818.xOyABxA-20y__B_CB(2,n)BO,S=4AOB1AB2AByC,OCB20519.A(3,0),B(0,4),Cx.(1)ABC;(2)C.20.ABOBAC30MOAMABACN,BCE,CFENF,ECFE.E1CFO(2)O1AC=CE,MO.FCNABMO2112141210835%642121122.223213+2=1xaaybb{ab}ab}cd}{ab}{cd}{acbd}1{31}+{1-2}2PO{31}A{12}BP{12}C{31}B?1OABC.OABC.32OP23PQ55O.yyQ5,5P2,31O1xxO(2223172472572)23.502030.50AB30A,20BA18001600B160012001Ax50y()xyx2507960035024.5OABCOACxyEOAAEFCEACP.1E(30)CEEP2E30Et0t0CEEP3yMBMEP.yCBGFPOEA25.yax2bxc(a0)yCLCx1LtLLCDL1212ABACBC.131abc1t2ABC222ABCta32AyAFACBDACDBaLy2ABL1CDxO2010(324)1B2D3A4B5D6A7D8B(164)19.-110.5511.(-1,2)12.2(305)13.513323,,,,313,,,514.55x13x3,,,,12x4,,,,2x2,,,,312102,,,,515.5a21()a2,,,,1(a2)(a2)a211()a2a2a2,,,,32a2a22a2a22a2a2,,,,4=1,,,,516.5ABCDABCDABCD,1ABECDF,,,2AEBDCFBDAEBCFD900,3RtABERtCDF,4BAEDCF,,,.517.5xy,,,,1xy40,,,,310x8y370x25,,,,4y152515.,,,,518.5:(1)A(-2,0),OA=2.B(2n)S=4.AOB_1OAn4.n4.2B24ay(a0).xaB4,a828y.,,,,2xABykxb(k0).2kb0,A,B2kb4.k1,b2.AByx2.,,,,42yx2x0,y2.C02.OC=2.11S=OCx222.,,,,5OCB2B2(205)19.5C(x,0),(1),,,,12AC(2,0),C(8,0),312BC(3,0),437CC(,0),54620.510C,,,,,1ABOACB=900EBAC=300,ABC=600OB=OC,0CB=OBC=600RtEMBABC=600E=300FOCF=900CCFO.,,,,3N2RtACBA=300,ACB=900ABAC=3,BC=1MOBE=3+1,,,,4RtBEME=300,BME=90013MB=231MO=,,,,5221.51...........................................................................................3236035%12612630%25%10%............................522.5y1{31}+{12}={43},,,,12,,,,2BB,,,,3CA31B(43)C121AOC=AB=1222=5OA=BC=3212=10O1xOABC,,,,43{23}+{32}+{-5-5}={0,0},,,,5(22237247257)23.71y200x7400....................1x10x30.,,,,22200x740079600x28