2022-2023学年北京市海淀区中考数学专项提升仿真模拟试题（二模三模）含解析

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2022-2023
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82022-2023
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311ABCq456Ḅrᓽᡠ0ḄP,tuPA+PC=BC,.,.=>?PAOCḄᕜᨬBJOC+OA+BC,VA(1,0)ஹB(4,0)ஹC(0,3),/.OA=1,OC=3,BC=yl0B2+OC2=5-r.OC+OA+BC=1+3+5=9ᙠ,ᱥ#Ḅ4567:ᙠP,;<=>?PAOCḄᕜᨬB=>?PAOCᕜḄᨬBJ9.(3)VB(4,0)ஹC(0,3),.,3.,♦\#BCḄ᪆2y=x+3,4জNBQM=90°u᝞2,M(a,b),,/ZCMQ>90°,8CM=MQ=b,MQ஻y6.BM_MQ"~BC~~OC'ᓽ=2,

32ঝNQMB=90஺u᝞3,VZCMQ=90°,•8CM=MQ,CM=MQ=m,/.BM=5-m,VZBMQ=ZCOB=90°,ZMBQ=ZOBC,AABMQ^ABOC,m5-ms/15—=----

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342022-2023
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35D,EA'----------------------A.25B.23C,35D.326.᝞஺஺Ḅ%2,/஺஺7S0஺1.¯8(7o஺᝞°N8/C=60஺±²0஺Ḅ!()BKA.6C.1D.227.Dgᦪ³1´µgᦪᑣ஻7ḄJ!()A.1B.0C.0.5D.8.¶·¸ᨵ4§ᳫ᪗ᨵ2,3,4,5,ᐜ»¼S§½¾¿ÀÁᯠÃÄ»¼S§ᡠ»¼Ḅz§ᳫᦪÅÆÇᜧo6Ḅᭆ᳛!()9.᝞XῪ/Z?ABCḄ⚔AᙠÌ⚔Bᙠx6Ḅ67⚔Cᙠgᦪy=«(xx>0)Ḅ7ÍT[AC=BC,ᑣAABCḄ☢ÏᜧBÐᓄ|}!()J'*A.KÒKÐB.ᐜÓᜧÃÔBC.ᐜÔBÃÓᜧD.ᐜÓᜧÃKÐ10.ÕÖ×ᔆÙᨴÛ.ÜÝ50Þ§F/ßà.ÜÝ196Þ§.áᔆâஹãᨴÛäᙳæᨴḄÓ᳛x,±²xçèḄ¥!A.50(1+x2)=196B.50+50(1+x2)=196F36⚓/I65⚓

36C.50+50(1+x)+50(1+x)2=196D.50+50(1+x)+50(l+2x)=19611.᝞?43coḄ>2,BE=CE,MN=\,#RMNḄzéᙠ8ஹ7ëT,DMu"BEDஹMஹN⚔Ḅ/Z?ìí.AîB.C.ᡈD.ïᡈ.5555537512.ð>?Ḅ>ñò6,ᑣáð>?Ḅ>!()A.B.2C.3D.2G13.(1)!S§óÒ,ᱥ#᜜?Ḅõ᫑÷☢ᙠ(1)ᙢùuõ⚔(õ᫑úḄ)û÷☢2in,÷☢ü4m.᝞(2)ýä☢\Zᙶ᪗lᑣ,ᱥ#Ḅᐵl2!()"1"2A.y=-2x2B.y=2x2C.y=-0.5x2D.y=0.5x214.᝞ZNa>7ḄþS4CJ_8coC,CDABஹD,ᑡᵨ#R´⊤BDBCADCDA.B.C.------D.-----BCABACAC15.
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37A.1B.2C.3D.4ஹ⚪16.%&x2-3x+l=0Ḅ⚗.ᦪ/___.17.᝞345/6%57848ᑮ£,;=ᑣN8CE=18.᝞ᵯ?PᙠBᩚABḄ6D%ABᙠ?ᐝFḄGHCD,AB஻CD,AB=1.5m,CD=4.5m,LPᑮCDḄMN2.7m,ᑣABOCDPḄMN/m.PA/\B/\19.᝞ᡠSḄTUVWXD%ḄVYZ[F%ḄVYZ1,ᑣ1—J.(^“ு20.᝞6%5ABCDO6%5EFGH/d5efA(0,5),D(0,3),E(0,1),H(0,4),ᑣdḄᙶ᪗/.21.ijk|1-43|+3tan30°-(73-5)°-(-1),.22.(x+3)(x-1)=12(ᵨr%s)38⚓/65⚓

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39MCEN(1)¸íkCE=ADL(2)î஺ᙠWLï3458ECD/ðñ345¾▊¦òḄᳮᵫ(3)஺48WLᑣî//=ï3453EC஺/6%5(yᑏvᫀ).27.ôõÅöẆøùúûüýþF⁚40ᑖᐜḄᶇᦟḄᓄᓄ.ᐜḄᶇ⌲ᜮᨵ!ᐜḄᶇ"ᢝ$%ᳮ'Ḅ()*᝱,ᐜḄᶇᑖᦣ../ᑖ᪆12ᐜḄᶇᢣᦪP!x(ᑖ)Ḅᓄ78᝞:;ᡠ=(ᐸN8ஹ3Cᑖ@%AC஺%CDAḄEᑖ)F(1)GHA48,DAC஺ḄI᪆JKᑏHMNḄOPRS(2),TUᑖVTWᓝᑖYZ$[ᐜḄᶇ\]^(3)⍝ᦪ`ab⚪◤G19ᑖ%e$f⌕GᐜḄᶇᢣᦪhᑮ36,jk〉mn᣸ὁqᔲᙠᐜᶇhᑮᡠ◤Ḅ*᝱:Itu⍝᪗⚪^0|102528.᝞;w2xAPAy஺஺zAஹB{AE|஺OḄx}{C%OO{~ACᑖZPAE,CCD_LPA,ᚖ%D.(1)GFCD%(DOḄᑗAS(2)DC+DA=6,00Ḅx}%10,GABḄ.29.᝞;ᱥAy=ax2+bx-4VxyzA(4,0)ஹB(-2,0){Vyyz{C,{P|AAB){({◀᜜){PPD஻AC,yBCz{D,CP.᝕᝕(1)GᱥAḄI᪆JS(2)m){P)ᑮ[ᜐBP2=BDBCST40⚓/65⚓

40(3)m4PCDḄ☢G{PḄᙶ᪗.T41⚓/65⚓

412022-2023
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