2022年中考數(shù)學(xué)模擬試卷及答案

22222022年中考數(shù)學(xué)模試卷一選題共10小題，分分每題4分1AB1.713DmxDA9B5

C6D2B5

9C

6D2D

2ABC60DBC第1頁(yè)共14頁(yè)

D42A18

B

C20

D212525xx18xx1919xxA

B

C

Dkx

kyyk4k0第2頁(yè)共14頁(yè)

xxyxDy002Akxk0Cy+2

Bkx+20Dy+k02yx1yk2y+k1+kByk+2x222Cy+k2k2Dykx+1yk0

A

BC

D第3頁(yè)共14頁(yè)

12231122311231212212k0kkykx+1k0kxDDABCDEFGH+S12SABC6+8EFGHMNKTDGS+S+12GFABCDEFGH是NGDGNFDGDGDG第4頁(yè)共14頁(yè)

2222223222222223222212221213+2CGDGSGFS+NF2NG+S+GFDGGFNG+NF2NGNF3GF

+S++SDO90A4

B6

C8

D12OAOBODAODCOBCODABDCBDABCC10ABDCBCBFDEADBA

B40

C80

D90ABBFDEADECBFAEDBFCDCAD第5頁(yè)共14頁(yè)

22222222ABCDADBCADECBFCBFADECBFAED80C二填題共6小，滿30分，小分4x+y4xm2xymx+y12405013050BDACABD40A502BDACDBA40BAD50BAC50第6頁(yè)共14頁(yè)

13yx3y2+5kxkxbyxk232+3by2+5y2x+514ABC

BCDMNAB+5HMMN+ADACMABBM第7頁(yè)共14頁(yè)

2222222222222222EDBMH5

BHsin45

BM+MNBM+BH15bab+baa

b

aabaaababbbab16DEBCABACAE5+△△CDEFRFxEBD第8頁(yè)共14頁(yè)

22EDB22EDB2222EDB2xxeq\o\ac(△,Rt)BDE5S△eq\o\ac(△,S)CDEFxDEBCBEDB90EBDBDeq\o\ac(△,Rt)BDEx+＝5x+xx+xx△△三解題共3小，滿30分）17

x2

2a第9頁(yè)共14頁(yè)

x232[

]

aa42+4618ABC905PA2cmBAtt1PACPAt2PBACt3tBCPPPAPAPB242t2CAB1PEBPtPEPC2tBE413eq\o\ac(△,Rt)ABC4cmAP2PACBCPP423tAB第10頁(yè)共頁(yè)

222222222222222BCPPBBC2PEBCt3PCCFFBFPPB2t42teq\o\ac(△,Rt)PCBPC+t+32t

PB2PBAC1PPEEBP2tPEPC2t54eq\o\ac(△,Rt)PE++172t，t6A

6PABC3eq\o\ac(△,Rt)AB5BCcm2tPBCPBC42PABBCPCP第11頁(yè)共頁(yè)

2222PBCEBC23tPBBC2t43PC3CABACBAB

3

5

第12頁(yè)共頁(yè)

2222222222222219++0103xt12MMBEPP3PAt4PPAE++cA3x132MPBEtP53

PH3ttt+34PEAPAE

+bxc0323x10yxax2333a1yx①2MPBEP12第13頁(yè)