2022-2023学年湖南省郴州市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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52022-2023
ᓭḕὃᦪ⚗ᓣ⚪ஹ⌱⌱ârK⚪ãᨵäåGᫀᐳ12K⚪çᑖ36ᑖè1./ᑡÝåḄ,âèA.Äé}ḄÔ¼Õ,Ô¼ÕB.Äé}êᑖḄÔ¼Õ,Ô¼ÕC.Äé}êᚖ|ḄÔ¼Õ,Ô¼ÕD,Äé}êᚖ|ḄÔ¼Õ,Ô¼ÕூäåGᫀ௃Bூᑖ᪆௃c⚪ὃïḄ,Ô¼ÕḄᑨñ¸ò.ூóF௃Äé}êᑖḄÔ¼Õ,Ô¼Õᦑ⌱Bᦑ⌱B.2.᝞&,r☢·õᨵö÷Ḅä¸øḄ_ùú&ÆÇᙠä¸øḄ⊤☢É"û"ÄḄ☢·Ḅö÷,âèூäåGᫀ௃CூóF௃ᑖ᪆9ä¸øḄ⊤☢ùú&ÄḄ☢ȹñ◞ä¸Õ᪷ýxᱯ(ÿ.Ḅ⊤☢Ḅ☢◞“”Ḅ☢“᰿”,“”Ḅ☢“”“”Ḅ☢“ᗐ”.ᦑ⌱U%6⚓/)77⚓

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41/.EAD^ACDF.ED=FC'(2)VAEAD^ACDF,.\ZADE=ZDFC=20°,ZDMC=ZFDM+ZDFC=ZFDA+ZADE+ZDFC=60°+20°+20°=100°.27.᝞kᱥyi=lx2+bx+c|x}J~AஹB,}yJ~C(0,-2/),ᱥx=-2}xJ~D,E]ᱥᙠx3▲ᑁ~.(1)ᱥyiḄ%᪆'(2)4OCD¡CD¢ᢚ¤O~~O,]ᔲᙠᱥyi¦§¨ᳮᵫ.(3)~EᐵJ¬CDḄ~E3ᔠ®ᙠx¦¯EpxḄᚖ}ᱥylJ~F,জ~FḄᙶ᪗'ঝ¬CD¦]ᔲ³ᙠ~P,´|PE-PF|?³ᙠᑏ,|PE-PF|¶.74\1/\/\\N/Vz%(1)•.•ᱥx=-2,•*--771=-2,%Tb=2,•.,~C(0,-2ᙠᱥyiTx?+bx+c¦.'.c=2,'3.•.ᱥ%᪆yi=X2+2X-2/'(2)O~~0,Aᨵᙠᱥyi¦.ᳮᵫ᝞¯0,~pOH_LxJH,᝞k1,ᵫ(1)TD(-2,0),C(0,2/),ᙠRtZkOCD\OD=2,OC=/5,.•.tanNODC='''M,AZODC=60°,VAOCD¡CD¢ᢚ¤O~~cr,.•.O'D=OD=2,ZO'DC=ZODC=60°,x42⚓/{77⚓

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442022-2023
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48í⚪î⌕ὃâᦪïḄÒÚðñòóÒÚô&⚪Ḅᐵ.11.᝞ᙊ┵Ḅ⊤☢
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49ூᑖ᪆௃IZ[m-nḄT^ᐭ01ᓽ`T.ூ௃:m-n=-\,I=abN஻cNN2abN஻c=1+2=3ᦑ@ᫀ3.h⚪ὃ-.^ᦪTjklmn1Dᑣ5*⚪Ḅᐵ4.14.Dab=2,a+b=—1,ᑣḄT______.abூ>?@ᫀ௃-0.5#---2.w-511a+bூ௃,N+;=—wN,abahN11-11x஺6=2,Q+6=—1{—F—=—=—.ab22ᦑ@ᫀ.—215.}~ABCḄa,b,ca+b=10,ab=18,c=8,ᑣh.ூ>?@ᫀ௃ூ௃᪷}~:a+b=10,ab=18,c=8,aa+bc2-2ab=100-36=64,Ec~64,

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59•*.ZDFC=NDCF=ZADE=ZAED=15°.,•ZCDM=90°-15o=75°,ZDMC=180°-75°-15°=90°,ᦑ?ᫀ90°ூ£¤1ᵨ௃(1)LA48EH•NEAB=60"EA=AB.•HAADFUVWXYZ,•••NFDA=60°AD=DF.:»Z3CD¥:.NBAD=NADC=90"DC=AB,*'•EA=CD.VNEAD=NEAB+ABAD=150°NCDF=Z.FDA+NADC=150°.NEAD=NCDF.AE=DC,ᙠ^EADbCDFmNEAD=NCDF,AD=DF,.\EAD^\CDF,ED=FC.(2)V\EAD^\CDF,.NADE=NDFC=20°AZDMC=NFDM+NDFC=NFDA+ZADE+NDFC=60°+20°+20"=100"."⚪ὃÆ>Ḅឋ±ஹ¥Ḅឋ±ஹHḄឋ±ஹᐰHḄᑨqÉឋ±²᜜ឋ±ÊËÌÍÎᐵឋ±²qᳮX
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62ᵫ92
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6᦮ᳮ?+4+2m-875=0,Jmi=2G9KLm2=-4,.E-4,-2736.HD=2,EH=26•••DE=^22+92V32=46.DE=4,6.E'2,0
,E'FJ_x<6.F(Ḅᙶ᪗d2,\x=2Nyi=~-x2+2x-25/3=6-273•AF2,6-273;ঝ•(Eᐵ=S4CDḄDE(E”ាVWᙠx<PE=PE',6.|PE-PFISET'9\(PஹETᐳ4N,_`a#S4CD'bᙠ(P,c|PE-PF|,Od6-26.m63⚓/p77⚓

63ὃ(j#$ᦪᔠ⚪2018ᔡ᪍ḕὃᦪᐰgᔁᫀg⚪J᪆ஹ⌱⌱j1.3ᑖ(-1ḄO09A.-1B.1C.0D.±1Jjj-1ḄO`=ᐸ¡ᦪ7ḄO01.ᦑ⌱jB.2.93ᑖ201312ᨴ2§“©ªa”«¬®¯°±°±ᓣ³´=12ᨴ14§ᙠᨴᳫ'ᡂ¸¹º»Ḽ▮.ᨴᳫ½¾ᙢᳫFᙳd38ÂÃÄÅᦪ38ÂᵨÆÇᦪÈ⊤Êᐸ@Ë9A.3.8x104B.38X104C.3.8xl05D.3.8xl06Jj38Â=3.8x105.ᦑ⌱jC.3.(3ᑖ)tᑡᔜqÓÔḄ0()A.(a-b)^a2-b2B.(-a4)3=a7C.2a*(-3b)=6abD.a5-6-a4=a(aÙ)JjAஹ(a-b)2=a2-2ab+b2,ᦑ⌱⚗┯Ü;Bஹ(-a4)3=-a12,ᦑ⌱⚗┯Ü6m64⚓/p77⚓

64Cஹ2a«9-3b=-6ab,ᦑ⌱⚗┯Ü;D^a5-6-a4=a9aßᦑ⌱⚗ÓÔ.ᦑ⌱jD.4.93ᑖàÓáâḄF☢äå%᝞%ᡠÊÅæᢚᡂÓáâ“ç”èD☢09JjÓáâḄ⊤☢äå%DḄ☢éê◞àÓáX“ì”ß“í0D☢“î”ß“8”0D☢“ç”ß"ð"0D☢.ᦑ⌱jD.5.93ᑖñd13cmஹ10cmஹ5cmஹ7cmḄôᩩ4öḄᩩ4ödY÷
XḄàᦪ09A.1àB.2àC.3àD.4àJj✌ᐜúᔠd13,10,5613,10,7613,5,7610,5,7.᪷"XḄYᐵZ,°ûᐸḄ13,5,7rᨵüᔠᑣ÷
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/BḄᦪA.70°B.100°C.110°D.120°Nl=60஺.*.Z2=180°-60o=120°.CD஻BE,/.Z2=ZB=120°.ᦑ⌱D.&65⚓/)77⚓

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68,.0H=AD=3,EH=OH+OE=3+6=9,ᦑ¿ᫀ9.17.3ᑖ+᝞`AB஺0Ḅx¡CD஺0ḄËZACD=54°,ᑣNBAD=36஺hiBD,᝞`ᡠÌ:,/ZACD=54°,AZABD=54°,VABx¡AZADB=90°,AZBAD=90°-ZABD=36°,36°.18.3ᑖ+,-gP-1,4
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70J1
ᙠRt/kABCbAC=vb;-r=2,AᑣSIABCD=ABXAC=2.(2),tupABCD3rstup,AO=OC,BOOD,AAO=1,ᙠRtAABObBO=,ô.õnö«,BD=2_~.23.᝞`,-ÍÎÏᦪ÷=:øᦪy=x+bḄ`pᙠÑ▲LjkgA(1,-k+4).(1)úûüT=ᦪḄ⊤Ð7(2)óýT=>ᦪ`ÑḄþf>jgBḄᙶ᪗ëó^AOBḄ☢(3)᪷ÿ
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73¸0<4y-178<10,ᓽ44.5BC)Ḅ᜜Á!X%ÂÃÄÅABEZADF,TÆEDFCM.(1)JKED=FC.᝞জ@!ÍÃABCD+\,/.AD=AB=CD,ZADC=90°,VAADE^ADFC,,.DF=CD=AE=AD,VZFDC=60o+90o=150°,ZDFC=ZDCF=ZADE=ZAED=15°,,.NFDE=600+15°=75°,.\ZMFD+ZFDM=90°,ZFMD=90°,ᦑÏᫀB90°(1):[ABEBÂÃÄÅ!r.ZEAB=60o,EA=AB.VAADFBÂÃÄÅ!AZFDA=60°,AD=FD.574⚓/877⚓

74•••ÍÃABCDBÌ!ZBAD=ZADC=90°DC=AB./.EA=DC.VZEAD=NEAB+/BAD=150஺!ZCDF=ZFDA+ZADC=150°,.•.ZEAD=ZCDF.ᙠAEADZACDF@!(3D/.[EAD^ACDF./.ED=FC,(2)VAEAD^ACDF,.•.ZADE=ZDFC=20°,ZDMC=ZFDM+ZDFC=ZFDA+ZADE+ZDFC=60°+20°+20°=100°.27.᝞!ÑᱥHyi=q2+bx+cxÒAஹB,yÒC(0,-2j),ÓÑᱥHÔÕÒx=-2xÒD,E+ÑᱥHᙠ53
▲ᑁ.f.(1)JÑᱥHyiḄ᪆(,(2)2AOCDØCDÙᢚh!OÔÕ0,+ᔲᙠÑᱥHyiIÜoSᳮᵫ.(3)MEᐵHCDḄÔÕEᔠßàᙠxÒI!W᳾XxÒḄᚖHÑᱥHylF,জJFḄᙶ᪗,ঝHCDI+ᔲãᙠP,ä|PE-PF|?Mãᙠ!ᑏ|PE-PF|.(1)..•ÑᱥHÔÕÒx=-2,b=2>;C(0,-2-/5)ᙠÑᱥHy,=^x2+bx+cI,c=2J,575⚓/877⚓

75...ÑᱥH᪆(By»Jx2+2x-2/,(2)0ÔÕ0,¢ᨵᙠÑᱥHyiI.ᳮᵫ᝞WO,XOHJ_xÒH,᝞1,ᵫ(1)D(-2,0),C(0,ᙠRtAOCD@,VOD=2,OC=.1,,.tanN0DC=^M!/.ZODC=60°,VAOCDØCDÙᢚh!OÔÕO!!A0/0=00=2,ZO'DC=ZODC=60°,.*.ZOrDH=60°,ᙠRtAO(DH@!sinZO,DH=?,OD.♦.O'H=2sin600=æ,DH=j2;,-.5;=1,,.O'(-3,-/),,¹x=-3º!yi=*x2+2x-2.~=^x9+2x(-3)-2jH/-.">•••O’¢ᨵᙠÑᱥHyiI,(3)জ®E(m,-m2+2m-2)(m<0),WEXEH_LxÒH,TÆDE,᝞2,ᑣDH=-2-m,EH=-(;m2+2m-2.")=":m-2m+2ᵫ(2)NODC=60஺,EᐵHCDḄÔÕE!ាßàᙠxÒI!ADCᚖèᑖEE!!,.DCèᑖ/EDE',DE=DE',.".ZEDE'=120°,ZEDH=60°,ᙠRtAEDH@!tan/EDH=3EH=HDtan60°,ᓽ—-m2-2m+2.1=(-2-m)•ê!᦮ᳮ171?+(4+2ê)m-87=0,mi=2/3(ëì)!ni2=-4,AE(-4,-2/),HD=2,EH=2í/.DE=,•/M,576⚓/877⚓

76.,.DE'=4,.E'(2,0),îET±xÒ!,.FḄïᙶ᪗B2,¹x=2º,yi=1x2+2x-2~=6-2/,AF(2,6-2/),ঝ..•EᐵHCDḄ•ÔÕE!ាßàᙠxÒ!.♦.PE=PET,.|PE!-PF|WE!F(¹PஹE!FᐳHº!Âð)!HCDIãᙠP,ä|PE-PF|,B6-2ñ577⚓/877⚓