2022-2023学年湖南省邵阳县中考数学专项提升仿真模拟试题（一模二模）含解析

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2022-2023
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“B”ᨵ200-60-30-10=100M:I᝞¦*17⚓/52⚓

170O9O8O7O6O5O4O3O2O1O(3)ᵨ᪵nð:ᜩÐÑᙠ0.50£¦ᓰ5%*ᑣ3000x5%=150,᪥ᨵ150MᙳᜩÐÑᙠ0.50£¦.n⚪ὃqḄᩩί°IÛᡧί°IḄÝᔠßᵨ.Ó௰I:á¬ᨵâḄ¯°I8ᑮã⌕Ḅ³´Kå⚪Ḅᐵ.ᩩί°IÅæçᙢ⊤ê⚗ëḄᦪP*ᡧί°I<=ì᧜¾ᑖᓰḄÉᑖÊᜧ.22.᝞I:⌕ïðñòCDḄô:ᙠᙢ☢¤A-ï8òCDḄ⚔¾CḄ÷ø30஺:ᔣòú50mᑮüB-:ýï8-CḄ÷ø60°.eþñòCDḄô(S§ÿᶇ᪷).ூᫀ௃CDḄ25Gm.ூ௃⚪ᑖ᪆᪷⚪!"4c3Ḅᦪ'()*"8c=48,()ᑭᵨC0=C8-sin6O஺*"ᓽ3.⚪᪆4⚪'ᨵ4=30°,ZCBD=60°,AB=50m.•NCBD=NA+ZACB,.ZACB^ZCBD-ZJ=60°-30°=30°=BC=AB=5Qm.ᙠRtACDB8'CD=CBsin60°=50x(m),9CDḄ25Jim.23.᝞='>?ABCD8'ECBDDEF'AEḄGHIJCDKF,JBCḄGHIKG,M18⚓/Q52⚓

18MCFGḄ8F.S1T*UজN1=N2XঝEC_LMC.S2T\]N1^K_`a'AECG^Ὺcd?efghᳮᵫ.ூᫀ௃S1TজUhk᪆XঝUhk᪆XS2T]/1=30஺a'AECG^Ὺcd?.ᳮᵫk᪆.ூ௃⚪ᑖ᪆S1Tজ᪷>?ḄmdInᑖEomd3!N4DE=NCDE,ᯠqᑭᵨrdrsᳮUhXDAEtAOCE.u᪷ᐰ^cd?mwdx^ᓽ3UhXঝ᪷yzIn{'ᑁ┯dx^3!N1=NG,u᪷zdcd?~rDḄ8I^K~rḄE3!MC=MG,ᯠq^rm^dḄឋ!ᑮNG=NMCG'ᡠN2=NMCG,ᯠq᪷ZFCG=90°ᓽ3UhZMCE=90°,)!UXS2T᪷S1TḄ'^Ὺcd?ydx^NG=NGEC,ᯠqᑭᵨcd?Ḅᑁdsᳮᑡ({ᓽ3*.⚪᪆S1TUhজ..r?/BCZTC>?'.ZADE=ZCDE,AD=CD,ᙠ/£>£■CO'4D=CD?Ḅmrn{T'AZ1=ZG,CGḄ8F'.MC=MG=MF,.Z.G=Z.MCG,M19⚓/Q52⚓

19,.♦N1=N2,Z2=ZMCG,NFCG=NMCG+NFCM=90°,ZECM=N2+ZFCM=90",.EC1.MC+(2)]Nl=30஺a'AECG^Ὺcd?.ᳮᵫ᝞VZECG>90஺,⌕AECG^Ὺcd?'ᨵCE=CG,.NG=ZCEG.'NG=Z2,NCEG=Z2,/.NDE4=2/2=2/1./.Zl=30°.24.᝞='¡¢£ᱥI¥F஺FA,FB(2,3)C£ᱥIm¦§DEF'¨FB©8(3஻*§J£ᱥIKFC,¬BOஹCA,®r?OACBCn{r?.(1)জz¯ᑏ"AஹCyFḄᙶ᪗Xঝ*³ᩩ£ᱥIḄµᦪᐵ·X(2)¸£ᱥIḄ⚔FM,ᙠIºACD»"³᪵ḄFP,!APBMCBMrḄ^Ὺcd?½*"¾aFPḄᙶ᪗X(3)FMḄzI¿DOACBḄ☢Áᑖ1:3yÂᑖ'*³ᩩzIḄµᦪᐵ·.1,ூᫀ௃(1)জA(4,0),C(6,3)Xঝᡠ*Ḅ£ᱥIµᦪᐵ·×X;(2)FP14Ḅᙶ᪗57(3)ᡠ*zIx=2ᡈÅÆEÇூᑖ᪆௃(1)জ᪷F8(2,3)C£ᱥIm¦§DEF'!"/Fᙶ᪗(4,0),()!"40M20⚓/Q52⚓

20ḄH'ᓽ3!"8c=4஺'*"CFᙶ᪗ᓽ3Xঝ᪷஺'A,CcFᙶ᪗'ᑭᵨÈs·ᦪÉ*"9ʵᦪḄ᪆ᓽ3X(2)✌ᐜ*"ZCᡠᙠ᪆'()!"ÍᔠᩩÏḄ^ῪP3M⚔dḄ⚔FᙠIº8MḄᚖznᑖIIº4CḄJFD'*"ᓽ3X(3)ᵫᩩÏ3¢FMÒ¿஺0/C8Ḅ☢Áᑖ1:3yÂᑖḄzIᨵyᩩ'ᑖÔ!"ᓽ3.ூ௃(1)জ.F8(2,3)C£ᱥIm¦§DEF'Fᙶ᪗(4,0),r?O/C8Cn{r?'.BC=AO,X.CFᙶ᪗(6,3),ঝ¸ᡠ*Ḅ£ᱥIy=a/+6x+c,ᑣ4⚪'!c=0<16஺+46+஺=0,36a+6b+c=31a——4!(6=-1c=0,.ᡠ*Ḅ£ᱥIµᦪᐵ·E=%E.(2)¸Iº/CᡠᙠḄzIḄµᦪᐵ·y=Kx+4,᪷⚪'!3zI4cḄµᦪᐵ·y=-x-6.2Vy=-x2-x=-(x2-4x)=-(x2-4x+4-4)=-(x-2)2-l,,4444...£ᱥIḄ⚔Fᙶ᪗(2,-1),XÍᔠᩩÏḄ^Ὺ⚔dḄ⚔FPᙠIºBMḄᚖznᑖIIºACḄJFD,M21⚓/Q52⚓

21314)8"=4,ᡠPFḄâᙶ᪗1,¿jTãᐭy=-x-68'!å97.23...FPḄᙶ᪗(3)n{r?Ḅm¦ឋ3!ᑮF/Ò¿஺O4C3Ḅ☢Áᑖ1:3yÂᑖḄzIᨵyᩩ,(i)VOACB=OA80=4x3=12,08஺Ḅ☢Á=g஺஺6஺=gx2x3=3,zIx=2ᡠ*'(ii)¸ÍᔠᩩÏḄæEzIᑖÔx§ஹ8cJKFE(ç,0)ஹF(X,3),2ᑣAE=4—u'CF=6—x,2**r?ACFEḄ☢Á=](4—u+6—X)X3=—X12.2ᓽé+å2=8.•8C஻x§'IXMDEsXMBF,ED_MDêEë‘x,-21AX-2=4,2ᓽ4%j-x-6.21426.♦.í,0)ஹF(y,3).¸zIMEḄµᦪᐵ·V942%+bᑣ2k2+Z?2=—11<4—+ï2=ky——24!\\”,ூE2M22⚓/Q52⚓

2257zIMEḄµᦪᐵ·ñ==òE5.57óᔠ(i)(ii)!,ᡠ*zI2ᡈô=^òE]./\M25.᝞='ö?ABCD8'AD஻BC,ZBAD=90°,CE_LADKFE,AD=8cm,BC=4cm,AB=5cm.÷øaùúø'ûFP,QᑖÔFA,Büa"ý'þûÿᙳlcm/s,PA-B--C--EḄᔣᑮEQB--C--E--DḄᔣᑮDxs,4PAQḄ☢ycm2,(☢0Ḅ)9(1)!x=2sy=cm2!x=^sv=cm2.(2)!5SxW14#y$x%Ḅ&ᦪᐵ)*.4(3)!PᙠBC-#./=1$3ABCDxḄ4.(4)56ᑏ.ᙠ᦮9:;<=PQ$>?ABCEḄ@ABḄᡠᨵxḄ4.ூFGHᫀ௃প29(2)(2)!5

23(2)!5<5(x-5)(9-x)(x-4)I2,65y=-x-7x+—!9V¡13(᝞2)y=y(x-9+4)(14-x)y=-7-x2+—x-3522!13

24τ,65•*.8=Jx2-7x+—ᓽx2-14x+49=o,V§X|=X2=722.•!x=7©ª$3ABCD(4)x«,!PQ஻ACBP=5-x,BQ=x,BPQS/\BAC,ᦑ”°5-x_x,ᓽABBC20V§x='9!PQ஻BEPC=9-x,QC=x-4,PCQS^BCE,ᦑ”=±,9-x_x-4ᓽBCCEV§x=²9!PQ஻BEEP=14-x,EQ=x-9»³PEQs/\BAE,ᦑ±=ᓽ14-xx-9ABAE5~T~V§x=´.920ஹ¸ᡈ¹.µ-ᡠ¶xḄ4:x=—999ὃ»¼&ᦪµᔠ⚪e25⚓/h52⚓

252022-2023
ᓭḕ□ὃᦪ⚗ᓣ⚪ஹ⌱⌱#$⚪1ᨵ345(ᫀ"ᐳ10$⚪"ᑖ30ᑖ1.¾ᑡÀFGḄÁÂ3a+ba+ba+b2a+bt—A.--------=--------B.2x-------=---------C.J2=aD.6233ஹas=QÁaZ0Â2.᝞ᡠx⊤xÃÄᦪḄÁÂDC__BA_-5**-%*-1AV0[1£43QA.AÅDB.BÅC;C.AÅCD.BÅD3.ÆÇÈÉÊᜩ=ᵨÌÍÎḄtuÏÐÑÒ/20ÓsÈÔÕ᝞¾⊤Êᜩ=ᵨÌÍÎÁᓫØᐗÂ12345Üᦪ13655ᑣ20ÓsÈÊᜩ=ᵨḄÌÍÎḄ×ᦪÅ<ØᦪᑖÙÁÂA3,3B.3,3.5C.3.5,3.5D.3.5,34.²ᐗ»¼;r+x-2=0᪷Ḅtuூ௃A.ᨵÝ9rᨵÞḄßᦪ᪷B.ᨵÝ9ÞḄßᦪ᪷C.àßᦪ᪷D.àáG5.᝞âF<Ḅ▢äåZæ┐èé90஺§ᑮḄÁÂe26⚓/h52⚓

266.᝞஺0AABCḄᑁᑗᙊᑣ0AABCḄÁÂA.ᩩ?Ḅᚖ5AᑖḄïB.ᩩAᑖḄïC.ᩩ<ḄïD.ᩩ`Ḅï3h27.ðÀ«2•ñÔÕÁÂA.5b5B.a4b5C.ab5D.a5b6a8.᝞oABCD

27ஹ34⚪-ᐳ67⚪8ᐳ18ᑖ.11.᝞9:;஺஻6Zl=120°,ᑣN2Ḅ>ᦪ'---<------A-“b12.ᑖ@AB8a2—2=_________.13.Cᱥ;E=2——1Ḅ⚔Hᙶ᪗414.᝞Z^ABCZACB=90°,tanA=-,AB=15,AC=___________.3I15.JKᙊLḄM☢OPQRS18cm,ᙊYZS240஺Ḅᡧᑣ\Kᙊ┵Ḅ^☢Q__cm.16.᝞UABCDAB=3cm,AD=6cmHESAB`aḄbcHd`EFGBeUVEF=2BE,ᑣS.c=cmA_______________PGJ?CWஹ@X⚪-ᐳ97⚪8ᐳ72ᑖ./28⚓/252⚓

2818.᝞AB=DE,ABHDE,BE=CF.hij>ABCADEF.19.ᙠᜧlmnoὁqrstuvwxyᵬஹ{|}~ᑖ᝕ᓷᙶḄᡂᑖ᪆ᑴv⚣ᦪᑖ⊤#᪷⊤Ḅᡂᑡ⚪jᑖ⚣ᦪ⚣᳛(0

29-1.ᵨÕÖ××AB`aḄᚖᑖ;DE,ÛACÜHD,ÛABÜHE.-Ýᶇ×ßàáᨵ⌕hᑏ×ä#iå.21.rḼçᢈéêëḄìOíîïðñ¬ḄòóPô⌲ö÷ᜫù×Súᐶ⚞ýḄsᘤ¸ÿᑣᘤᓄḄᩭᜧ⌲ᡂᓄḄ⌕,"ᓄ#ᔆ⌕ᙠ&'()ᑁ+,1200ᓟᐗᓄ#2ᧇ.5ᨵA,B:;ᘤ<=⌱?@AABᘤCBBᘤDE(F+,30ᓟHABᘤ+,900ᓟHᡠᵨḄ()LBBᘤ+,600ᓟHᡠᵨḄ()NO.89ᘤ;B<9ᘤ;P1Q:;ᘤDE(ᑖS+,FTᓄ#2ᧇUP2QV#ᔆ2WᑜY(Zᵨ[:;ᘤ+,#\]^()_ABᘤ`ᨵabḄ+,cdefghi[ᢇᓄ#2ᧇᙠ11E(ᑁᐰl+,mn.opABᘤqT#\rsE(,tuhi[ᢇᓄ#2ᧇᙠ&'Ḅ()ᑁmᡂ.22.@Apvᦪy=3x—2Ḅ|}L"~CvᦪḄ|}Ḅ]sᐳḄᙶ᪗1.P1QoV~CvᦪḄ᪆P2Qvᦪy=3x-2Ḅ|}ᔣ4sᓫo_Ḅ|}L~Cvᦪ|}Ḅᙶ᪗;P3Qᑏ]sY(᝞ᩩḄvᦪ᪆pজvᦪḄ|}uᵫvᦪy=3x—2Ḅ|}¡P0,-2Q¢£]'¤¥¦ᑮঝvᦪḄ|}L~CvᦪḄ|}©ᨵᐳ.23.@Aªᱥ-x'mx+n,y?=kx+b,yiḄ´µ¶L·¸AP-1,5Q,ALy1Ḅ⚔BḄ»¼½4.P1Qo᜜Ḅ᪆P2Q¿ᙳÁḼxḄÃᜧÄÃᜧ᜜Ly,Åx¶ḄY]oy2Ḅ᪆.Æ30⚓/É52⚓

3024.᝞|☢¤ᙶ᪗ËÌÍÎÏOABC½ÒÏ02Aᙠx¶Cᙠy¶A(10,0),C(0,6),DᙠABÎ4CBDÖCD×ᢚBាÚÛᙠOAÎEᜐ.(1)oEḄᙶ᪗(2)oᢚÞCDᡠᙠḄvᦪ⊤à(3)áâÒCDX¶¸F.জoåCOFḄ☢æঝᙠX¶½ᔲèᙠP,ZSAAP=@SACOF?¿èᙠoPḄᙶ᪗¿©ᨵèᙠêëᳮᵫ.25.᝞|åZ8C0஺Ḅᑁð¤Ïñ8câÒ]NPAC=NB,OOḄóôC\CG_L/஺¸E,?.AB@F,஺஺¸G.(1)ᑨùᜐL஺஺ḄúᐵËêëᳮᵫ(2)oipA(?=AFABx(3)¿஺஺Ḅó10,AC=2y[5,AB=4yj5,oå4FGḄ☢æ.Æ31⚓/É52⚓

312022-2023
ᓭḕ□ὃᦪ⚗ᓣ⚪ஹ⌱⌱#$⚪1ᨵ345(ᫀ"ᐳ10$⚪"ᑖ30ᑖ1.ᑡ,ýþÿḄ
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A.8A98DB.8B98C;C.8A98CD.8B98Dூᫀ௃Cூᑖ᪆௃᪷>?ᨵABCᨵḄDEᦪ3456ᦪFGᫀ.ூ௃ᵫ⚪JGK8A⊤1Ḅᦪ4K2,8B⊤1Ḅᦪ4K1,8C⊤1Ḅᦪ4K-2,8D⊤1Ḅᦪ4K-3,ᑣANC3456ᦪᦑ⌱C.O⚪ὃQRᦪS956ᦪḄTUV⍝ᦪSXY8⊤1ḄᦪZ[\]^56ᦪḄTUᓽF.3.4Y`abcᜩeᵨghiḄjklmnoR20paqr᝞s⊤KcᜩeᵨghiᓫuKᐗ12345y32⚓/|52⚓

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A.a5b5B.a4b§C.ab5D.5b6aூᫀ௃Ay34⚓/|52⚓

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