新人教版七年级数学下学期期末考试试题

新人教版年级数学下期期末考试题一选题每题3分，分30）4AB

C

D12A

BC

D2100A1

B3

C4

D100AC

BDA5a4aaCaDABCD10BCDFE

Ax

Bx+

DA3

B57D9250yA250C100250

B250D25010AD二填题每题3分，分24）44

xx+3﹣yABBOD

ABCD1+BCD1802123344

1234201812342018

OA011A三解题本题题，满66分1

1212

32eq\o\ac(△,A)eq\o\ac(△,)Beq\o\ac(△,A)eq\o\ac(△,)BC

CD1mn2CB33040ABCDE

xx10x20x30x40x40

mADE1C

2BA1.5/BA25000ACBAD1581182AQEBCAQB3PBCBE

参答与题析一选题每题3分，分30）

A

B

C

D

3.14112A

BC

DBDC122100A1

B3

C4

D100

AB224100180DAC

BDA+2x1xyB+22x1x1C+2x2xyD

+24x2x2

A5a4aaCaDAa054B02aCa+3DABCDAABBCDDD

10BCDFEACD8DFADABFDABC+AD+ABC方1DFACCFADABCF+DF+ADABBC+AC++++10+1+112BxA3B

x+C7D9y+3+xB250y

A250C100250

B250D25010010AD

160

32A二填题每题3分，分24）42x

＝4204P333x43x+3x5+3xx55+3xx+3xx3+52x4

﹣yxmx2y5m+51ABBOD56

AB34OEABBODCOE90345656ABCD31+BCD1802123344BCD21AD33CD4BCD

a5

12342018201822610420182610n201812342018201822610420182610n2018x6x415aOA011A1201850521A1A315A2n1n0n5051

21131A0

﹣

nnn505A10091三解题本题题，满66分1

32

+2

1

1

122+8x1xy

2

x33xx1.5y23

x20112

△

32eq\o\ac(△,A)eq\o\ac(△,)Beq\o\ac(△,A)eq\o\ac(△,)BC2BC的3CA232514A3

eq\o\ac(△,S)

4363eq\o\ac(△,A)eq\o\ac(△,)BC

CD1mn2CB33040ABCDE

xx10x20x30x40x40

mEED

mna2mB3D168%20040%30%a2

B100%20%3x4030%240ADE1C2C2DECECBECDADEDE

+EDC3C4180C452DEEECABECDBA1.5/BA25000A2A1502mB20600mnxy

502m

5000ACBAD1581182AQEBCAQB3PBCBECCFBEACFBCF180ACBACFBCFACB2ADQMAQB1+CCADQPPBCAD+CBECADCBEACBDAC

CCFADCFBECFADACFABCF180BACF2ADQMAQMEBQAQCADBQCBENADCBE