四川省成都市錦江區(qū)中考數(shù)學(xué)二診試卷及答案

354222362354222362222018年四川成都市錦區(qū)中考數(shù)學(xué)診試卷A卷一選題共個題每小3，分分在下小中均出個案其有只一個確案請正答的母號答卡涂，錯不涂為分.A3B

CDA

B

C

D20171032A3210

3

B3.210

C10

D3.2A3a2a1Cbab

BaaD+ba+A40yA0

B4

C

D4

1

A23

B

C1.51

DA

B4CDx

222222BCA18

B

C20

D40⊙OACcosDA3B

C

Dyax+bx0ykax++cA2xC200x

B1D2二填題本題個題每題4分滿16分11n

00Bb90eq\o\ac(△,Rt)ABCACB90BC2BCABD三解題小題小12分，小6分，18分）+4cos602

+1x

四解題每題分共16）ABCD1

2A200PBB451.41

五解題每題分，20分）ykx+kyAyADxDCAD12CABE的CDABFDBPCDFABBF1O2CE3BFtanAPD

22B卷一填題每題分共20）13xy+3+m014BC4

BDOOEFODHAHAHyymx0ynxAyC4

ABCDBACABCPAPBPA6PBPC10

二解題分）5y/xy

1y2100%x三解題分）DCEAEFCDPAE1AFB2AEDPAGDG3AD6PDBPDP

2212212四解題12分）1+bx+c13012y+bxyxa3ABC2nmBCPQP

354422236354422236222參考答案試題解析一選題共個題每小3，分分在下小中均出個案其有只一個確案請正答的母號答卡涂，錯不涂為分.A3

B

CDDA

B

C

D20171032A3210

3

B3.210

C10

D3.232000DA3a2a1Cbab

BaaD+ba+

222222223222aaABaBCb+bD+bDDA40yA0

B4

C

D4A0y40A

1

A23

B

C1.51

DBA

B4CDxx1xx5xx+31BCA18

B

C20

D40

2222CA20ABCDAC2cosDA3

B

C

DBCDAO9062DB

yax+bx0ykax++c

22222222A2xC200x

B1D2ax++2014A二填題本題個題每題4分滿16分11nm+3m9nmnm+3m3

121345bBC90362

10﹣10﹣a11ACFBCF9054ab2BCFeq\o\ac(△,Rt)ABCACB90BC2BCABDeq\o\ac(△,Rt)ABCC6022

陰影eq\o\ac(△,)扇形

2三解題小題小12分，小6分，18分）+4cos602

6212x2

+1x

四解題每題分共16）ABCD12

6015+10+15202ABCD

AABD

BBCD

CCACBCD

DDDDDD16A200PBB451.41PPCCPCA90

BPCeq\o\ac(△,Rt)AC200BCP+100+100

100

/27.8///

27.3五解題每題分，20分）ykx+kyAyADxDCAD12CABE的ADxDADCADAFD45FDAD2

AODAODADy△△A66my

OCFCOFOCOFODFD2404A2Cykx+byx2CxE0

B2

CDABFDBPCDFABBF1O2CE3BFtanAPDCDABCDPC2PABPAB

2222ECF

EDCE73

2CEHGDBGF90DHGFBGASADHAOAHHB1CDOMDBOBOD

POMtanAPD

10

2222122222221222一填題每題分共20）13xPxyPPy+3+m01abxx0a2mm1m13[+3]4m12m+903

4BC4

BDOOEFODHAHAH2

2GADPHGAGBC4BD

ADBDDOPGDGPD3

DHOFDHO90ODAHHGAGHHeq\o\ac(△,Rt)APGAGAHAGHG2222

2

yymx0ynxAyC

△

4y6yx+6yxyx+4y0FEFFEF△AB4

OAAB

A35

6n100100

ABCDBACABCPAPBPA6PBPC1050

A60AMPMAH60ABC

22222222222222MAPAMPBACPCPM+PBBM100PM+PBBMAPM60APBAHPA3PH3AHBH100+48

BH

ABCD2

50

+72二解題8分5y/xy

1y2100%x

y+

122222122222yyx25000x508030608060x50x+5005x+6125x6560655x65+6125a505x65yx60W56000三解題10分）DCEAEFCDPAE1AFB2AEDPAGDG3AD6PDBPDPABCDDC90DCEDEDC

DAADE150ADF15+4524530DP

AGDPDGACAGDPDGBD3ACAOFADAOFOAF30

45DBP90①BPD90IA90DPIIAE90OAP30AOP120

22122212AOPAOF15FDP75DP3

3②BDP90DFPAFBDPDFtanDFP

3

3

3

四解題12分）1+bx+c13012y+bxyxa3ABC2nmBCPQP

22222222122222222212121ybx+c

y22y23xxyx+3yx+yxyx+aA+ax+3+a+a10a+ayx+3xx0030a

1

3A1000BCPQPQCBPQ2n

11112