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2022年河北省邢台市初中毕业生升学第二次模拟试卷036,()中点E为将沿BF则)5...m5m).(a≠、b和;))....:ABxy)yDkx.11215191).PA,Pyx...)....)()63202xxxx121222m124△A20,5x轴、y(BB3AkEE(-)÷a△ECCB△=△ab(2+﹣2,∥是OPM==41341424x件1xx)(﹣))﹣﹣,﹣参考答案C和B,555.21∵21,211345∴,225,5.2225Bm值..A,得4a+b=1,故③正确,故选A.B..BF∴∴=+:DAB142.P在C,和hyAP,.PA3y,与yy=);2114y,xy;222y,y,y);233y,y,y();24411.B.6343114311=32.35x4xx1.x,1212xxxx4151122且xm2m解得x>0且2≠04-m>0且2≠0m<4且m≠2.2x22x1且1△)42a41△)4)1且.a2aaa4﹣1且.aa++(△=﹣4△12ca2△△13.R2SSS360BCD△SBCD△,2S=,S=,1△ABC=33,2S33.3.53=BOC=由条件可知:OE=OA=5,,,k=,xa;5(-)∙=∙=a3a2a=a)4050(===△(=△(DEBC∴=,∴-=-=,∠,BC∴=,△△ABACCBECD,((∠,=,BC1=,2∵=,=,∴=,1=,2∠∠;△△.>,,<.1.(()()22(﹣,当;(a﹣﹣)222﹣),2﹣),2则.(△(△∠(∥,.是M∴=△△PCMOAMCPMAOMPMOM,(∴=.O∴=,∴=.又∥,(∴=,∵=,∴==,,A=;;O∴⊥=,∵∥,=,∵=,,.11))).42(((x.1461==;2(,∴,.2x2xx,x2,1xx.x当12.2.﹣a2222,22当、﹣)225=.4((,,.,,,..2021-2022中考数学模拟试卷4分3C)D)0101.(y))C)))yy..xy.环)环)657876687(D),,;,,;B87CA2222222222.到,)B..、、44.3.4.5.6)818.C181,8)D,,,N△△)C△、13、10F是M或N213210c﹣﹣2()(++=(a)....C.,94即3.11).1156,3...111A向xA1111﹣,1(xy(xy∥x(=ababab1122122161M数M与yM.2521212123当时.2或52.=12.中,(OCOB作⊥P.2当OC时,P交y结x⊥x于,3,3113,223113-,226,3+,632.29xx﹣,,yyQ,xxOyx2的”L.Q(Q;C,CQCQ.3(Dx3DQ在D0Dx的yD3QL22()0MQr530)2Q4D((axOQ与DC与xx3xLDMQ,QQ在y22x(143,∴aQ在D与xQ的Q纵坐标与横坐标比值最大时,Q的OQ与DQ,,C与x,(33∴=,3y∴∠3,x.Qy(xA,B3,333,0∴A,3,3∴∠,3.,Qy.当D与xLDQ1xE,11111∴.11.113,1.1123∴x.3DQ2E222223x3.Fy33,39AFOAcosOAF33.22D1.∴.227,422∴OEOAAE.22∴x.xDD∵0,Qy,22Qx22M与x,x,22,,26.2.2TT9T4TT5(Tx(Ty.,x.T元.(Ty41,55T元.△以A于A于D连于21245(CECFCB△2△1故=23A由故=设2=25a得=5a过F作交于1133C.454,CF=a3CECFCB,2∴,,,,∠,,△.,,,xx△△:=23∴SA由知,1∴=,2设∥交1,5a,4135,CFa334CC.x123?nx<yyx).)1)天x(<﹣2yxy2xxyx(kb198与=+,,,nbkb194,解nxxmxmk2,b200;nxnx当.xn(<)2x2160x40001x50y(yyxy120x1200050x90)当<(),xy2xx2∵<;xy当,xyx∵<随;yxxyxy(x2k1xk0xxxx1x2求k2x,x112122k12)k)3(---x+x=-,x·x=k2221212xxxx=x·x-=k-x+x<0x+x21212121212·x--;21222k2121221212121212122121212121∵k23.OBDE作交交.(;(O3(交=34.8,G△,Orr∠,ADACG.AH3在△∠=G==33=43△=,=﹣33,rrHC4=∠,Mr223343=.6a(yx.a(和x(C在x△Ca((4CC3CCC11212x)1219,(或()2Cx22AaBB(C与x△mmC(EF、N、NCC.12ax;x,(C,与x15252115AB22219221922令中,EFCC12.m至2(2﹣x﹣3或﹣23m2462.2(﹣xc2(m﹣B,2C因Cm﹣m﹣m2222﹣﹣m><<>,<Bm﹣m﹣22,))(﹣)+,222222222(﹣x,222((m,222m﹣,2222,222222222,.((m与n212m.22021-2022中考数学模拟试卷313x23x23x23x2,x,xxxx,,,123453123451..4,3319.yy=xx<0y>y=11221212-k().x.x).x)22224824236xxx2..-3)、)121212223633622)n2△A在x△Cx(△).3.4.6)xx.x.xx5xa12有2a1+1x.xACBD23OAABB.11△.kk=()ykyxykABxx△COOPB20%17.34.=(,yxyxk于(,,∥∥AaBbCxy,在△PPy132233、、1ABC△((请1△6△ABC;O△,11122222222参考答案3Dxx,x,x,x,12345,,;123451x,x,xx,x,1234531,,,,2123453,,,12345.时时.A.191911191,99911,99.A22,11。Bx<x0y>y><﹣k1212.DAA2BB6CC5DD22DB+,•﹣xxxx+•(+x2xxx2xxxx121212121212+,•=•(+﹣.xxxx2xxxx2112112.bacxx++(,+2caxx,•xx.121212aC235333336.Dn﹣12B∴,∵△12∴,设,21CB,xx12∴,,xx211﹣=,xxx1,x213xxx∴,113△OAB=×2x.22x键.Ax22x==,xx.73⩽;aaa,a12⩽⩽2,53和,a12则⩽,5⩽,⩽且10xx30,x1x3.且x1x3.且.在△△4533×3.4533)B⊥于△B,31111113,3,3B,11△△,111111B31由F,,F∵∥,,∴,44,3,△.31=△ABC与yD的2(((△OAB△12设(,,1△=(),2过A⊥xC⊥x,1则△OAM△=k,2△OAC△△AMNC,1∴(),2∴,①,,,∴..∠C∠.C﹣.O.OPA715%.2x21212x.1yxP((,(,、、AaBbyxabAB(=S△OAE△,ExF(,PmBbyxababAB=,=>(交y交x,S=﹣﹣=,,P,11-x得,xx,,1.45;.99(9(959.111(△ABCACBA作交,2222=,==.22021-2022中考数学模拟试卷3OE为)3.2)5434......3..3.4..75()是AD3BAC90,CE)BD.6.5.41((l的)....3xx)77.33a)5.a232352P第12(3P.《》573O(OD..ABBAAB.△与M是a.l123233.l1AB7DE⊥ABE,BC求求DE是、△BCE(=6Paxbxa0)(.y(.2(P是xPxl当<Px.p优mn良422良;,((AAABABC)参考答案3C.3BE=DE1=S=2D=,=,在△与△==..3=,BC∴==AC4.C131,311,33..A,,.CO12在=OB2BD2D是,,,,,,3,..B1∴,,=2=,.D.,7.3.0Ba与aA23B5C4D6.73,)PP4P,),).xx357xx3或x57xxx3,57xx3.57....x=﹣2.=﹣x2=﹣0中,.=(bkk0,b0.<>.AB,xx3,262262,则AB...2aa2z2a2M是,;;令.axy∴,xy10022a2,2a2、yz22222.2123与的BB,B434322=====.B510.8∥△AB5712EA;(==5555﹣△5﹣=5;(△△△△=====,=﹣2(﹣))22212A,E是,,,B′E,,,A;(,=,,﹣55﹣,55,5﹣5;(AB′A=,△△B′△△,==由=BA=,∴==A=,设P=,﹣,=.=,2(﹣)),2228=,78PB′==.7x)y2)()2x4P((xAB=﹣2;yxxAB=线yxxyxyxnNnnnn(||.nnnnnnnnnnPPx;.(A占mn良(.△(△E是.,,E是,,,,,(.,,,,E是,,.CAA作.(△CAA作.﹣.,.(222222.2222021-2022中考数学模拟试卷3)a3)a122313....x12a1上⊥,,)与y,xak()........=(﹣)+==|﹣|﹣2yaxcxxyxxyxx112212)12121212G△△,△,,△)333....842)xx.,xx1212.,xx121214).995)﹣.22.aab11O于C.﹣(>x(x2(>△m(△PE84⊥,=BABCDEmn;;OOEOFC(☉OABCAB,CDOADBD2ED(求3CBa-3=223=C∵(),△AOC=△..C,,,∵∴,,BB分1和1与aay1y2>1a||,xx12∴>,yy12+yy12(﹣,ayy12②<1a||,xx12∴<,yy12+yy12(﹣,ayy12(﹣.ayy12.aA===31==,=63===,,==,,,,,=,,3∴=6=,1=,3=,=,=,,,1∴=3=,1==,23∴=,21113∴S==××.DIJ2222.C﹣),或﹣,x﹣,x,12..D14=8=第n(>1148…n(>1时(.a=﹣nC9539995=51=55))()()).22222.73)a﹣)(﹣22(-xxx2).8,,..3,,,3x37x7∴,3.2ab3aa﹣2b)a﹣abab,2ab,1a10,.1a10nn1.和.anO、、、∠.O、、、.,,..3423时x4xAB,C2mAC90∠90PAC=90,ooo得m△PE.(△PExyE(﹣﹣,22令x,22,,()2222222222222222222,22222223故.2=,令,,222∴((,22224△PE,3(∴,﹣∴﹣,∴﹣())(﹣﹣)(),222212E(E(,122222212,.:x,y点x,y1122.221212ykxb,:ykxb:111222若:;2若:kk12或xx50x5012((△(△B,,,,△△DBCBDBECBEBEBE∵,;(△,△,,,,,((1(n((==++,==,,;((=.(△(△D(O,∴,,,∵,,,,,(,OO(∴,∴,,而,.径..,,,,.)5((AA(O于、交于O于aa(∴ACB,,,;(BOC,OB,11801802A90A,2,ACD;,∴BCDCFE,DFA,BAH,BAHBCH,BAHBCH,CFECHE,CF,∴CH∴EHEF,DKDF,3,∵DE2DE6∴HK,在DGBCGC,BD交于AGADBD2DE6,∴MCKBCKBAK,∴CMK,O于,则NAKCMK,∴CM//AN,∵NCKADK,∴CN//AG,CN6,∴AG作OTCK于,则T为∵O为13∴,2OC5,,∵OTC4,CT2CT8∴CK,,6HS10,,∵HK8,KS3∴,41∴,3aCD3a,,设BD1313BD2EDa6a2,∴AD,∵CDDKCK,1a28∴,39a,515a2∴,38∴.552021-2022中考数学模拟试卷3OB△3)yx2.π3C⊥AB作OEO,yx∴D(,C,∴CODODC,26,22∵△OAB∴,2.312π63)C、、、2).,.,2B.,.,2231).())).2225).....CBD..kA(x,y,B(x,y)y)x12112220.k.1212)C.)....6,)C和,六34).2.2A.,3.3,,.63x﹣=x4xm0m24.=(﹣40.2xx4xm0﹣=2=(﹣40,24,4.0axbxc0a)=b4ac22当00.1PA,=.﹣12Q===22﹣,22﹣,2﹣,2=﹣.23.3.1>2的1x2设x.x1x2.x211÷.11÷1=(﹣)A.EF2S=﹣.∠EF1S=2-222.3..22座BCcmCD35cm,AFL⊥L且AE25cmABBAF,ABC,BCDLD)作RtCBG和RtABH和D到L的,,∴,D到LBHAECDCG302255(30220)cm..与x(,y)2xDCM△△P133533﹣x+;P,222242422(12,113﹣()﹣x+;22213﹣x+,2223,2(,DCM222222222232△∴,5m∴2,2555454,5∴2,3533P(,2422.;BDBC16BD6ADBDBCABCDADABCD.BDBC16ABCDBD当BD8(,).2BDBC,;xABDCBD112212=18﹣x与x,,yCP是2(,l与xlMPPxM﹣;23P,24928PB(lBl和点CM;(P作yCPFStSP线P,﹣x,21bc0b2得,9bc0c3x;2(1l,x与x(2,当Plx,2C点P,M,当,CE,P,,(2P作y.m,3n﹣,222133;2222323.22272P8,3P,24(和StP;;(.))﹣;﹣.1(﹣.822=22421,(a0p.apap2021-2022中考数学模拟试卷3OABD过OC为AB与A)34....++c=>=+;2)1212⊥∥,与么)233....23x(a.62.7((K的)12O()k33...142)....3月1).,;y.;.,;.,.x132yx26.y2.2△)C0C0N则.kyxyxODBM是C作l和为,).23235Cα,与.(9)(8(201603112x4、56ABABAB(1套1套AB1作yxxyACA⊥.yxACCB;ACPyP,,△APCPBy(t1y(t2(y与ty与t11t(yt2t(yyty参考答案D∴C.y.aaybayba和1时y,时y时y.BP作∠∵=,∠=,PMPN2∴=.2.C,即△a63当=;84当△())a,3..BAB,把(,k;把(,k.即或.k..(0ky0kyAA,mkyxyx为Oy与ABxB,mmm出1mkxy3xy与A,y,1m点A,kxyxOyyxA与BB,m,mm1,1m213,点A22133k224.Ayx,ABD.,,D..D;2..Dyx113yx3;x13y2122x33yx3y.22B作⊥于=D作于,E⊥DE,C,118222.7332122.23.2k(kyxyx4M为过,∴,..13为,,120π120π525π22﹣S=(13.13161,61.61.36.1..x),12())(),22233;.1nx,xxS=(x-x)(x-x)22212n12n(x-x)2n7人.3×xy5.xy2(1)1yx3,x(y1)512x.y21.﹣3)).44(α'''△CABCD△′F(△′′′△′AADCA112(⊥于G△ACF=••=•••,2△Cα,..,1.2D'F在△,'3﹣3.(△,,A'DA'D''2,433.23'A'B'△,439.44(于.11△,22.,.411224.1.(3()11=113=2x21=1=.=xxxxxx)、)ABAB元(BAxBy(m(AxBy56950xy得3x2450100x=,75、AB(﹣AmBm﹣)﹣,mmm,m(﹣,mmm当m,AB是,,35,,(,,;(﹣1,yxxyAC∴((AC∴,.∵⊥⊥,xy∴=,=.在△=25.ABBC2,35;(.,=.在△=﹣﹣,=+,111﹣),1∴;(,DPy∵(A,().y111=,,1∴,y∴(P=,(),1y15∴=,y25∴(,P2=,(﹣),y1∴或,y∴(P5,(,(PPP212选=5,⊥于.EA在△==5;22,,△APC△,.,,POP作⊥于△,ON∴∴,4,445455∴=,∴,∴,∴AH,5848455=,51P11,551﹣P2(020)tt1125t120(20t30)1分和12y与t1设y(﹣)11,y﹣151y﹣(﹣)15y与t2<yy﹣,22tty=,tt211当﹣()﹣(﹣),21255ty随t,11当﹣(﹣﹣(),21255ty随t,y2021-2022中考数学模拟试卷332﹣16).0和1D<<32<.=3232<32﹣16<.32.2.58.138.148...)22,2.)....A),4.)27....B2.2BA.7.)..>2.<2Dk).3.=4.5.5)122512∴,设,,:,2,5,3x32x2∴..6())6233434m.1...D38m=6m6,.6463A=,=,=.C3212A=BCAB3sinA,2,AA12∴.21.2、C于点O,.﹣.4.∴CDAB3,120π9227;△;2120π3213333π22;1;2(21π)cm.4.△=△O△EE,.D作,∠13,22,,13,,,,AOF△OEF△ADE122=36022360=8..△.2△△CAB3点.45C作于、△C作于,,,5,2在△,3835',∴5.6ACyxy(x︰x166E,,B,tt设E,tt6t.kk(k(xyxxM和△△与22,17以,52,252D.L:y2(b((,bk(Lyy1Lx(ABCDAD1ABCD.AC69y2xx((3(Ayxbx3xbxbb3(xb)b3),222222,.22(1b,2y.2L2x2x33,2(2,3)或(3,3).kk6,将(2,3)yx6y.xk(3,3)yk9,将x9y.x69yy或.xxx,xbx3(,A2x1,xbx3D,21,x(2b)xb2)(x2.CDCxbx3x(2b)xb22xb122DCxABCD,xbx1bxb1b1DC2(b1)b11.当xDCAD当ACDCACADDC222.273(3((3(7)7、、、、、、,().3;(=E;当(,△;(a△==,,22△Q﹣),(△2(Ba2D(PCPp(Qm<<m△22228D,,(设(m<<E2221﹣(﹣),m2m2)222∴△Q2P3小Qm<C△m2.,,ABCACBBCAs米与ttAst步CCB))51tBC((((米)BCxCC(米200mn300m(=+30mn3000n6000-;sttsn(,-;tttt,-.ttt51(米BCx--)x.x2米BC33275天.3(xx2量3x(m40m3(xx23,xx,(m40,40)行.;bB;.16(165m、D2<<6CCmBBAC,2021-2022中考数学模拟试卷32)256.B2.2.﹣2(则a.44.22)A,.Aa由+2+,yxbyxb把(A,bb=+是=(+,ybmykxmb移=(-x=+是=++,nmykxmbybnybn=+-.ybnbx)2.xx.xx﹣31212.x,xx,x﹣31212Bx,2),x,x312.xmm)23x6x..2.<2.>2mmmmAm①xmx23x6②<,xm,x.m.Ax=x()x1..且.且.且C且﹣且.xxxx故且.xxx.33)1313.3.-.B....△△A△)....y与nn,,nyn.、、、2).;.;.;.A、、、2,,、、、,1)24B1﹣)﹣,2241﹣24.63a.2()24a4)b(a2)ab(a2.222)2.b(a..为与与D与.:1∴135∴==3121﹣y随x>..OM是..∴AC,1,∴2,..b222a2222222)(﹣))(﹣),222212b1a21.2、、和1244﹣﹣和xxy,402).9((().1﹣27)﹣8|20322222(,yBC12Bl21)y.2(△B1(S=lA20C0yb,把(,(,)ABC22l2(△∵,222(∴22,22∴,B).1(S=,ABC21∴,2,,l设yb,22kb0((,)代入得:b1把,1k∴{2,b11x1∴ly.223月BA3B5A4BBAAB)棵BxAy(Aa棵BBxAy3y5x2100,x,AB;))6(24B200CA(6O.与O.,(==AOC1B;2与OOAD90∥AOC901B2)∵=,=,∴=,,∵∥,,∠,,∴∥,∴=,=,∴==,∴AOC60,1B;∴2.与O∴OAD90,∵∥,∴AOC90,1B∴245.1P(+k(1过A作lCB在CAPA⊥C⊥m和⊥A213(x-3(()(a22()(a212m224212232121144312111411411,441x,141将xxx,1114(;131(x-=(),14414211,441将()141)xx,1114;1(,111∴)x,x,112a12a1113()==,2a2aa22,32即a;31(,a1又.2a111•=.a2a21;2或1<或<1222213x-1424(,,((或(11122,2或2当2m212当<12当<<531212222E△和E△E作==.;△△△△△△、△△△△设,a,,,;,取,,,,,,,,,,,;、,△,,△,,设,,,∵,2021-2022中考数学模拟试卷3)7)y)(①②>).1个.2个.3个.4个yx...xxxAD,)2)OA40BCOABC.40.50.60.80).年).﹣4)2263232AE,A60CD,ABCDFG点,AB,cosGF与,AD.150.,=.O.83作OCP为ABPAPCPA.Q、、(;((E五一五E、D1)÷﹣.a1a21CABCB粮ABA32CBCB55(BC4Byaxbx3AByG.2(1,1)B(,2((Gm作ABQAPQPPPmn(CABCACDEACDEGACn环a778c7bc(a,b,参考答案3B1A314B61C4123D8.A744744..Db<﹣﹣,ayxcx2a故,>>bbabaca﹣1﹣﹣﹣﹣<xy,++﹣,﹣3>93+②xabcxxyxybcaa.By(a2当0<0ba当a与by当a与bycyyx△△>0x22△x1△0x22B,x..D,,,,,DECE2222,﹣>,22,,22,,2,,22(﹣2),222.BBOCBOC2A80,OBOC,BCOCBO50,.C,和,.Cn,nnann1n..,nnanDxx,11x(k)11x,(k),111当x△<1当x△1∴..bacx,x(x,xx=1111111a.63x),12())(),22233;.1nx,xxS=(x-x)(x-x)22212n12n(x-x)2n21,,CDCDPAEFG于OAFGEFGFGAEEFGAPEPDAPDAAPCDPD、的长,根据E为A作APCDCDPAEFG于O,ABCDAB2,CDEFG,A,AFGEFGFGAE,∴CD,AB,PAEEAF,∴∵∴∴,PAEAFGEFGAPE,PDA∴,13213,,221,2,∴22,7APAE..(140)cm33OO32132⊥,⊥,OEOFOCOCOD11234与O1O1O11O133=.∴3333OO).12,,O∠O,23O23COO.23.∴OO=323OO34OO.34AD:+3333333()(+).3,,,CC.C△,△,C.1.b2m2m2a1b.2a862xx11x2213xx3x,6PPA=APC45,PA223=△是⊥P由11△C作22△是.,.是为⊥△∠∠C作,1122∠在△333.”、..13(AAB(E五E(D6(E,.22a=(==·2a,2=﹣.2B1CB(BAA(ABCBC(且,ABxy32553525BCAB在,.,Bxx3)y)或)或2(1,1)B(,yax2bx3(((.ab319ab33a1b1xx3;y2(kb1kb3k1b0P2m3)Pm//yQ∵Q)①当,//y2或②当A作于,∵APQm2APQm惑;nn3n22(2)2(2n)3nE或..((5162748291(12421、、、、、、,21())))())()]22222221=);(77782021-2022中考数学模拟试卷04分)16C是D∥,.3米63米222221yx12.2.22)15....6△△,x)...6.3()....△在xB△B2A)﹣3)PACP△(3)3)﹣3))2....年.2.3.4.5))233....223xx﹣﹣<322c).<<或1=()xm)2.0.0或2.0或22.2264分323和x21﹣.22△Aαα球人;人.4有1用E和3.//PODE、.P(4((1212m2(2.nn4314224月98lBA在BAPBBB参考答案4分Cn7|nnnC11222222CD333sinDOC.622SS3∴S2.C222、、22222CD2)()(10)=222D△△、abB△△B6yBx11=.222﹣的22kBD△,BA112∴3===3==,点BA44,3∴32DA113.A△ABBC121xy2;.C<,nnann1n1n..,nnanB作⊥BC的延长线于点D,如图所示:22AB22xbxxx2cx△cx△0(﹣,cc,c当5c,2xx﹣1或xx当c﹣,2xx或xx<或,cc.C1=(xm221=(x22=0==0x1当=()x221)(m=m=﹣,2122m0或2,.x64分b.21.b.21.2x得x、x,212,...3.12212,.1,,∴∴,,49.,,..或与,,2,22,2,1222,2222,;或12(;(7(61==.1xy-x,x30y.2262050301600420(元).12)(,==,=,,((Bxx.(=,把(==,,,(∴,,,,=,(∥(∴⊥,=,,=,=,,PO)(xx(为yyx6300,040)xx0,(y﹣,,)m2)m1((m1(m2)(mm2(;m2(m2m1x,(1.1).2n)510%50;n()样本中喜爱看电视的人数为501520510),,612.2A或Bxyyxy3x2y2342x.6、3AB2P作于.P作于∠﹣﹣,310103,=102B102B101032021-2022中考数学模拟试卷4分()....462222﹣32)2△A)3π.2A点BC)))))6.如图,四边形I△E在)....1).和和.和.和l、l、lCy、C123)1△ABCB)①3()....)22236)△O;、EBE)3.333232x2(1,2).y、、、<)OM是.139x392,∥⊥E(是B(=:=:.=,、DE△2G于、.G与ACGC6(,t251D△D△ABC△2△A111与Dx﹣﹣kk2优良32211yC;ybOABC.k参考答案4分C.B.224-a)a236-=C222a-D22.B420Bb4ac(3242(2A△△,O=,∵=,33π,=A2.AA作⊥xD⊥x⊥于△=,=EF出,,出△出=,AC﹣,B⊥⊥x⊥于,xDEF△AEOCOD.ACBCI△∠∠)﹣∠),C、、、、、,,.C=;1By△ABC△AGB△BCG△=△21△AGB△BGC=2△=∴,1,2,21,2∴BD﹣=a222aa235)﹣222).222B△△△△,△△,△△.D,,,、BE.∵,BE4,BD33R∴==43,21122426364分1=.2.2(x1)2.y2,y1(﹣).yx1(﹣).yx1>M=1yAkkyx(,(,<>.yyxyBxy1xx1111111.==,为=∴=∥∠A∥∠∠.ADA((:9;x.11112.552===•△,△:.=.∠∠===是EB.:=:.5)=.2=,===,=,=,=,222()=,2253=1951与==()2t(△;△、与与.=,==,,,,△△BAECAFACAB,ACF,,+,即;(12,,∴△∽△,1,21CF'CF,2111CECFCECF'CECF'BC,222;1tA作于.1,∴=CEACtt1=,t1tttt即t3∴===43,212=2=∴,8tt31t13t85511122(0kk(kk2﹣.22(△△022△△03.5中良和良(:.P女女女男男123122131213121212123212312:.P12b)86)k4(Ab(lBk,AC34ky;AC4y,yxbACOABC过、08bb8.A6CbyxbOABCby时OABCyOABC有lDB,Bl:yk2021-2022中考数学模拟试卷4分)1323....23223,23,2.OlOl=2,=lA3111lO=()2B3==,211,,﹣=,在△==..OOllOlO=lO>EPBCQB出CQ(△(y与t2<△2﹣△P3)QCP在△△QCP到E则则11△221故SABE211xt,当<<y22BB及P△4P在△△﹣t或△△8t8或,66t.6)....DD.)1x....xx、.:S:S).∶3.4.5作于,于,于)....D)xxa(a0)取)xymmmmm10.取x1012x取m,A,.k)x,>0y随xP作xyk﹣xD>0随>0随kyxkyx作、AB|kPxy.2,)34.3...1353AAC2=AB3.5)D1﹣A;B1C917898859890D.x.5.64分23.xx12()...:3123494nn3()(nn143331()2()=;01444339n个234434.x22122此﹣2323234﹣.2331231令33﹣=.S23S23SSS231.29.(wwx(()()(﹣22﹣﹣2﹣,wxyxx2xw2x或或)﹣2﹣xxy2x﹣()时﹣﹣x2xy2元.(x((();2(,222220.5.mW()①W=19145000元xyxy,根据题意得{5xyx,{y48.m(mW2000m1000(140m)140000=1000m②m140m10m55150m51000m140000k10000,又在一次函数WWm随5最大10005140000145000.当m55,(1405)15.19145000元.2OAOBOCOD222AB2222222CAB,CB粮ABA2CBCB5(BC4BB1C(BAAxy32553525.BC,35EHEA连交于当FGBFCG时231作A7于设AK5于、K=.KTA33∵==,5535∴,设,,,,,17∴过A作于交于G则,,∴,∴EHEAEG·ED,1=,22=,55·=,28BA·cos=55·、,,,∴,=·∴∴222.15价x12元.年在在85)((2a前万(),2或﹣;(a(﹣),,.111((11;1.((..(10327349(1,;1.2021-2022中考数学模拟试卷3)....∥,⊥=)EAD.)3,)33..5.﹣6.5.6△,,,E.2))FA以2F△((a)2555..22x2113)y2....2yyy2x14y2x1422)2))222263922.xk1xx54kAM是M作.E,=a与xa.8y=xm2==,=;若m1(),22(((B1+()-221x2,,2xx221|3-+--()+8;01-4a2a2+a2O是与O与.(;OCO,O于.Cl与PlD△相PlNN.图1参考答案D.ABCD..ACD∥∠.AC.AC∵⊥.DC.CAABCD.C.D12322S==3.﹣3﹣23,Dnann11n;1n01个6个1个0.00000252.510.6×=×==.55=rCFA到D用,5.11∴5.2BD2DE2=211152Ay2x1132Cx-8x=2,2x-8x+16=1,2(x-4).2故选C.【点睛】本题考查了解一元二次方程配方法:将一元二次方程配成()=n的形式,再利用直接开2平方法求解,这种解一元二次方程的方法叫配方法.63>.故S>S.22甲乙O作交与.为.xk1>24k<kkkk34k4<,4<,121于是FM⊥=F21=.F2=.3.3nRl2,233113x﹣与x2,,3x△x△,与x△x.8;2<.当13y=和.=﹣=22,=﹣,>===>3m2mmm当=1==3=、y=,,,,;=﹣,2=2W=;=,2W随x当3W=,2,=﹣,>=,2m当=,mW=)﹣2,mmW;当=>3<,m当3W=<,<<,<.1﹣()1512;((,1(()Bm12()1∴,(),111﹣,221﹣).1219(﹣)得﹣﹣,1221(﹣),121把(﹣),12﹣1,15.4-2333=23+4-43-23211-.,x212x121x·2=-x1xx121(x22=-·(xxxx1x12=xxx1x12x=xxxx11.x当1=.x2.)(),7(a2a29a2((+3aa2a26a9.33;3aa32a2[-3a9a32a2a2a2=(-a3a3a92a2a3a3=×a32a=,a-,=4或,取.((与EF,.12223.2SAE.AC1133=.△8(O与到于(E弧OAC∽OCB..lANAOMN.OAC∽OCB,OCOAOB4.2,y1a,213y,222CP,P(则,1112∥OCOA2∴,25223223322lN.,1M28(,M28,(,N35与Mm221yN2155,22288,(,,MN28NNMN28.2021-2022中考数学模拟试卷4分21238643)83B32个1222.53863.5433.35=2015.6520、S=﹣)(﹣)﹣))(﹣)222222.)nnnannn6nnl交()....于=∠,ADA)ayyx....Da当0=y2x当0=yD2.yx)33...yxB3yx3、x.E△A△)1111,,,∠∠,))111111111111.5n)55555n..6.5.3D5,55555n5,52n则5,62n.n.、为、、在ADBCABC).3米.3米CB,CBCA∴=+=3=(3)22452723522222B7aa3C62D).BRtCED.△、、、、DEO2):2△△△△△1△,2△:,△:..)69.6A﹣..22.64分xx、xx5x10x.2221212x+x,x·x1212xx=222(xx)2xx11212bac,,a1212,c.1222,.121﹣2.2llx12,.△△A△C11π52S=S==41P接﹣,P..()(与形...AC·EF=.DA交,.(D与M(DM(交.3.5(2M作交于1(323,3x2xA.13,,3x3x4,2x”是、或1).6((.A或BmABn、、ED的结)=5.((=D作在△=,..1a<2a,.12﹣)a<<aa22aa21)(=,a12aa<,,,22=.BE:ADAB12与,△△△,,∴,2212△△)与xByy,(C(△沿xt<<△△△S与tt33222CDBⅢ).1223232A1,0x1cy211cc4∴02y23C0,3;令xx1或x3DN22222222BD2222∵BCCDBD,222∴ⅢBCy,∵,,b3∴yBCtyxt3x3tQE;ymxnBD,∵2,n6,m∴y.CQCQ交BDGG在3t当022,PBPK3t.设PQ与BCKQKyx设QE与BDF.yxt,∴111222F11132.22222当K.Jtt,2x6xty6t,BDy1122113t6t3t2221.22322与tS.122)===∠,OD.(△与△:=,==△△D作,33.21(于O是△△=233.2(,,12,3322021-2022中考数学模拟试卷3)△,.”)a10n.11时,n1nn.E从AECE作交E2y与xa179==E或或()4E在﹣155aaa·5x22aaaa81791x=x=E在x2x512342244,a,y1a5﹣x2aa,·52a2a,a=12318﹣x,2331118,2443379x=,x=,122214,44()D,,,,,ABCD2﹣﹣3xx5﹣=3yy(2yy.2y)x12abx,2x,﹣,﹣,﹣﹣,12ab∴﹣﹣﹣,.、bkA(x,y,B(x,y)xx0yy1yk)x1211222k00.k>0B.k<0..kx<x0y<y,1212y随x∴<,.4().个D.个.个.个x,41∴,4x4,.xx)x3.0..3.A.xx3=,...=2)+﹣)22xaayxaD2a11﹣,=(2)+﹣22xaayxaxa22122=y2﹣,a443x4)1.1∠∠,.﹣.x2>.x>2,xx3,xxxE,A2,AEα是,DC是是:交于于△△交于于则,,222,20,5、x轴、y(是DBB3AkEE53=BOC=由条件可知:OE=OA=5,k=,x,BAB15./yxBBB了tt小时,根据等量关系甲车用了12
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