2022-2023学年北京市房山区中考数学专项提升仿真模拟卷（一模二模）含解析

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2022-2023
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72022-2023
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32A.x=1B.x=2C.x=-\D.¯9.᝞,±(ᙽ³2µḄᙊX·¸¹_(\ᙊº90஺ḄᡧX.ᑣᡧXḄ☢½#2A.—m2B.——jim1C.ᐔD.2ᐔ஻/22310.^_ᑡ=ᦪজy=-3x+2ÅঝÇ=(Åঞy=2x2Åটy=3x,É=ᦪbeᔠᩩ“.x>1,x=ᦪ3ytÍvÎxÏᜧuÏᜧ“Ḅ;#2A.জঞB.ঞটC.ঝটD.ঝঞ11.ᡃÑᓭÓᦪNÔᩰÖᡠ℉ḄÙÚÛÜÝÞ(ßbᵨḄXà)⚗#a+b2”ḄäåḄᔜ⚗§ᦪ,X“ᩰÖQ+b10............................1.....................................I1(a+i)2..................|21(a+b)*.............133I(o+Z>)4.......1464ç…I510105᪷“ᩰÖ”êë#4+bpḄäåb±îï4`⚗Ḅ§ᦪ#2A.84B.56C.35D.28433⚓/757⚓

3312.᝞ôõXN8CḄõ÷4,஺;A/BCḄNFOG=120஺.<=஺>?NFOG,ᑖøù48ஹBC@DஹEûüý஺E,^_ᑡ`\þU:জ஺஺=OEDE஺/=SBDE:ঞODBEḄ☢g0;©8DEᕜḄᨬ6,!"#$%&Ḅ'ᦪ)*+A.1B.2C.3D.44ஹ67⚪*9⚪4ᑖ;<ᑖ24ᑖ;=>ᫀ6ᙠ>⚪A+13.BCD|-2+3|=.14.HI,J)Kᐗ4MNO—+QK2=0ḄR'Sᦪ᪷;ᑣX|+w+X|X2=.15.᝞Z,0CNAOBḄ[ᑖ\.CN_L஺8,0C=5.=4.ᑣ`Cᑮb\0AḄcd16.᝞Z.ᙠ4x4Ḅ%NNfZ$;%NḄ⚔`hf`.A48CḄ⚔`iᙠf`,ᑣABACḄ%j).17.lSᦪa,b,opqC"♦"Da*b='a-b,u᝞4*3,v4>3.ᡠy[ab,a

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1[>ADLCD-,
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⚪(1)ঞAB=(ᶇ᪷);(2)᝞ঞᑨBADQḄᳮᵫ"(3)#ᑏটᡠᨵḄ,⌱*ᐸ,-ᳮᵫ.(4)ট.#ᙠBCDE01,ᩩ3456,-7Ḅᵨ9:⊤<ᩭᑏ>Ḅ?@A.25.᝞1,ᙠB☢DEᙶ᪗HD3N=x-1IJᱥ3yn-f+bx+cLM48NOᐸ/(1,0),8(4,஻).RJᱥ3ISTLMO஺IxTLMV,O“(1)X1ஹ஻ḄZ[RJᱥ3Ḅ᪆];(2)᝞2.^OP_34`Ḅ,aO(bᨵI4஺cᔠ).ᑖfg4hஹDP_iᙠD3ADḄjklmῪDEop@mῪDEoDPN,rsMN᦮uvwo☢xyPOḄᙶ᪗.(3)᝞3.rs8஺ஹC஺,ᙠ34C0`zᔲ|ᙠO஺}~g4Dஹ஺_⚔OḄEIo^|ᙠ,#DsᑏO஺Ḅᙶ᪗;^bᨵ|ᙠ,#ᳮᵫ.37⚓/57⚓

372022-2023
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39⚪ὃDEᦪqAᙳᦪḄ7r-s89ᦪ:ᢥ᯿deᑮᜧFᡈdᜧᑮeGḄhi᣸ᑡ-᝞vᦪ:Ḅwᦪ0᜻ᦪ-ᑣᜐzD{E|Ḅᦪ}0C9ᦪ:ḄDEᦪ᝞vC9ᦪ:Ḅwᦪ0Ꮤᦪ-ᑣD{wᦪ:ḄAᙳᦪ}0C9ᦪ:ḄDEᦪAᙳᦪ0ᢣᙠ89ᦪ:Dᡠᨵᦪ:q◀ᦪ:Ḅwᦪ.6.᝞-s8ᢥᨵḄE|᤮-ᑡ᤮,DNaN6Ḅ0MUD.VটூLᫀ௃Aூᑖ᪆௃᪷:AḄ-Ḅ-Ḅ⊡q⊡Ḅᔜe⚪ᑖ᪆ᑨᓽ`P.ூOP௃Pজ-Za+Z^=l80°-90°=90°,ঝ-᪷:Ḅ-ঞ-᪷:Ḅ⊡Na=N£ট-Na+N0=18O°,⊡.ᦑ⌱A.⚪ὃq⊡-0Ạ⚪-¯°ᭆ]ឋ²0P⚪Ḅᐵ/.7.᝞-³ᦪy=ax2—2x+lqV=ax—0·ᦪ-¸a*0Gᙠ8A☢»ᙶ᪗¾Ḅ¿À0FGூLᫀ௃Bl40⚓/p57⚓

40ூOP௃ᑖ᪆ᐜ᪷:³ᦪḄ¿ᑨ஺ḄÂÃ-ᑨÄųᦪ¿Æ▭0ᔲÂ-ᑨᓽ.OPA.ᵫ³ᦪG-="Ḅ¿`«<0,ÊËÄųᦪÌÍ2-2x+lḄ¿ÎÏÐÑᔣ.ᦑ⌱⚗┯B.ᵫ³ᦪÓor-aḄ¿`«>0,ÊËÄųᦪÌ4/_2x+lḄ¿ÎÏÐÑ--2ᔣÔ-ÕÖÌ-Ä8>0.ᦑ⌱⚗2aC.ᵫ³ᦪḄ¿`a>0,ÊËÄųᦪ×ØÙ8Ú+1Ḅ¿ÎÏÐÑᔣÔ-ÕÖx=-=>0,qxÖḄÛÖÜ.ᦑ⌱⚗┯2aD.ᵫ³ᦪy=“x-aḄ¿`a>0,ÊËÄųᦪÓaN-2x+lḄ¿ÎÏÐÑᔣÔ.ᦑ⌱⚗┯.ᦑ⌱B.⚪ὃÄųᦪݳᦪḄ¿-P⚪Ḅᐵ/0¯°³ᦪ×ᯠ-“ᙠᨵßàᡠᙠḄ¿▲-ݯâ12ÄųᦪḄᨵᐵឋ²ÐÑ,ᔣஹÕÖஹ⚔ᙶ᪗.x[38.ᑖ,äTÄফḄPVFG1A.x=1B.x=2C.x=—1D.æPூLᫀ௃DூOP௃ᑖ᪆ᑖ,äçᑖèéᓄV᦮,ä-WX᦮,äḄP`ᑮxḄY-ìíîᓽ`ᑮᑖ,äḄP.OPçᑖè`/+2ᔆð-ñ+2=3,P`x=l,ìíîx=l0ò᪷-ᑖ,äæP.ᦑ⌱D.⚪ὃᑖ,äḄP-ðóô_ᑖèᨵV0Cwᩩö.9.᝞,d8ᙽ»øV2᪷ḄᙊúûüÔýX8wᙊþV90஺Ḅᡧ.ᑣᡧḄ☢41⚓/57⚓

41A.—m2B.YE஻?2c.஻/D.2ᐔm122ூᫀ௃Aூ!௃ᑖ᪆$%&/C,᪷*ᙊᕜ-.ᳮ01/CᙊḄ234!2-5-61᪷*ᡧ☢7861ᓽ:.!$%&/C•••<=ᙽ232?Ḅᙊ@ABC1=DEF-90஺Ḅᡧ4ᓽ48c=90஺4M/C234ᓽ4C=24"4AB=BC.•4B2+BC=22,.AB=BC=6m,O.▢QRᑖḄ☢STUV.?2.3602ᦑ⌱A.YZ$[⚪ὃ^_ᙊᕜ-.ᳮ`ᡧḄ☢ab4cdeᡧḄ☢78S!⚪Ḅᐵg.310.i1jᑡlᦪ$জy=-3x+2Oঝu==Oঞy=2x2Oটy=3x,Bxlᦪyzᔠᩩ}“x>1,XlᦪyXᜧᜧ”ḄSA.জঞB.ঞটC.2X4D.ঝঞூᫀ௃Bூ!௃ᑖ᪆$ᑖᑭᵨlᦪஹlᦪஹlᦪஹMlᦪḄឋᑖ᪆01ᫀ.!$জ-3x+2,x>l4lᦪyxᜧ4ᦑ⌱⚗┯O3ঝy=—,x>l4lᦪ᜛xᜧ4ᦑ⌱⚗┯Ox@y=2x2,x>l4lᦪyxᜧ4ᦑ⌱⚗O@y=3x,x>l4lᦪyxᜧ4ᦑ⌱⚗.ᦑ⌱B.42⚓/57⚓

42YZ$[⚪⌕ὃ^_lᦪஹlᦪஹlᦪஹMlᦪḄឋ¢4£¤¥ᐵឋ¢S!⚪Ḅᐵg.11.ᡃ§ᓭ©ᦪª«ᩰᡠ℉Ḅ°!±²b³´=µy4ᵨj¶Ḅ5-!·M⚗8«+/?"Ḅ¹º8Ḅᔜ⚗¼ᦪ45-½“ᩰ5-Q+6)஺.......I(o+A),........................II(a+A)1..................|21(a+b)*.....I331(a+Z>)4.......1464(a+*)s—I510105᪷*“ᩰ5-”¾aba+6yḄ¹º8y<ÁÂÃ⚗Ḅ¼ᦪA.84B.56C.35D.28ூᫀ௃Bூ!௃ᑖ᪆$᪷*¶yḄÄÅᓽ:61a+b8Ḅ¹º8y<ÁÂÃ⚗Ḅ¼ᦪ.!$ÆÄÅÇÈa+b4ḄÃ⚗¼ᦪ4=3+1O஺+65ḄÃ⚗¼ᦪ10=6+4Oa+66ḄÃ⚗¼ᦪ20=10+10Oa+b7ḄÃ⚗¼ᦪ35=15+20O4a+b8Ã⚗¼ᦪ21+35=56.ᦑ⌱B.YZ$[⚪ὃ^_ᦪÊᓄÄÅ4ÌÍÎÏஹᑖ᪆ஹÐÑÇÈᐸyḄÄÅ4ÓÔᵨÇÈḄÄÅ!ÕÖ⚪Ḅc×.12.᝞¶4ÙÚ5-N8CḄÚÜ4,Y஺SA/BCḄ4NFOG=120஺.<=஺>?NFOG,ᑖÝÞßN8ஹBC@DஹEàY4%&OE,i1jᑡÃDâã:জ஺஺=OE;@S=S^DE®ÃÚODBEḄ☢æçÙè;6;©ë8DEᕜÜḄᨬWDE6,BxâãyḄDᦪS43⚓/57⚓

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44஺£>/_L3C!/.YBD=x,ᑣ8/=1x,Dl=-x-223,:BD=EC,BC=4,.BE=4-x,IE=BE-BI=4——x.ᙠRtAD/E%,DE=yjDI2+IE22+4,'x=2(OEḄ)ᨬ+2,/\BDEḄᕜa=BD+BE+DE=BE+EC+DE=BC+DE=4+DE,'OEᨬ+(&)£■Ḅᕜ1ᨬ+.•.&)£3Ḅᕜ1Ḅᨬ+)=4+2=6.ᦑট.ᦑ⌱C.6738⚪:;<=ᣚ-@ABᔠ⚪.ὃEFGHḄឋJKLMNOᦪḄឋJ.Q⚪ḄᐵS:TU08஺VOCE.MஹXY⚪([⚪4ᑖ]ᑖ24ᑖ^_ᫀXᙠ_⚪ab)13.cd:f2+3f.ூ_ᫀ௃1ூiQ௃ᑖ᪆3᪷lᨵᳮᦪḄnoQ_ᓽq.iQ31-2+31=1.ᦑ_ᫀ1.6738⚪ὃEFᨵᳮᦪḄnoᐵS:᪷loᑣcd.14.rᓰ,x?:tᐗMNvwt+yt2=0Ḅz{|ᦪ᪷ᑣ᳝+஽+஽=ூ_ᫀ௃-3ூᑖ᪆௃᪷l᪷ᦪḄᐵᓽq_ᫀ.ூiQ௃ᵫ᪷ᦪḄᐵq3X}+X2=_1,X1X2=-2,45⚓/57⚓

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