浙江省德清縣聯(lián)考2023-2024學(xué)年數(shù)學(xué)七年級第一學(xué)期期末學(xué)業(yè)質(zhì)量監(jiān)測試題含解析

2023-2024

1.WWW-?.

2.￡w-o-?êaw&￡>a^wfflo.

3.iWUMW?M?^?-^±^mW^M±a?^^>

4.W?m?,

&%%05

5.￡nHM,^ffl2Be?^W￡,M.

-,??:*A?￡i2>Nh?,$<b?3#,￡36#.?</bmHdiftE^^,

1.HB1()

A.a#r<?iOf?^4'>MM

B.%&AB^&BA^??m%%&

C.W&AP=PB

D.^AP=BP,

a&x-y=;Lm-(3-x+y)^^^<>

2.

5599

A.—B.-C.-D.----

2222

3.i+M-2-|-3|^>A()

A.-5B.-1C.1D.5

4.MW-A?ùftS^A2’C,?miaA-8”C,WJ^A?ùft^^ktM^ia?()

A.10’CB.6’CC.-6’CD.-10’C

5.)

A.0,-2B.1,3C.-1,2D.-1,3

6.)

2

A.x=3x+3B.3x=x+3C.2x=3D.x=3x-3

7.3^-^gT*WJ8>bWt0],^>?4’<50rn2^ffiAAmWJ;IBJWW

fàrt5￡-MlOJTa^WJT^^&ù40m^ffi,10m2

iaffi,WWWOSW^xm2.J!iJTyüWAfêiETO>()

3x-50_5(x-10)+403x+50_5(x-10)-40

8“108”10

8x+5010x-408x-5010x+40

C.----------=------------+10D.------------=-------------+10

3535

A.Za-^pS^B.Za-^ZpS#C.Za-^Zpffi^D.ZatEZp/b

9.(

B——ra￡à

13456

78910II1213

14151617181920

21222324252627

28293031

A.39B.43C.57D.66

io.H?!?(>

A.-ytfj￡M.-i,?&taiB.

c.5WMWI).￡W2x2-3x-5lW&>2.WW-5

11.^M^AM-7c-^?ar+Z>=0M^x=-2,Mfê?(y+1)+6=O|W>()

A.y=-lB.y=-2c.y=-3D.TWfêS

12.m^l207ü-^^.a?TSWa<J8?TthW,WM20%,()7ü

A.180B.170C.160D.150

?S?(*S?4#,W20#,W^??^?^±)

13.ftSCD^f?ZAOB^?,OC^ftZAOB,fclffl?,fàZAOB'fèOC????fàZCOB(OAOB&&),AO&

?\~%W&OE,&ZBOE=-ZEOC,^OEiRm,JH?OJèü380°,UO

2

14.MfàWjê10#ie$j-10#,mfàibê5

15.fê?M?jiO&M-Ohisw_

16.BfcJWH&a,b,cfa&a+b+c=Q,Rabc*Q,IP^M+H+kl+W.

abcabc

17.?,%D>AB+E^BCf?'t’?,AC=8,BC=5,Jü!|AD=.

à**7c

H.(**H#7/h?,üE^agOS?^.)

18.(55???:

?,?SfflMR^IOftfHmACflJAD,(W^W,RfflT?g??)

(1)&AC=2a+b

(2)&AD=2a-b

I______c_i_____II___h___I

121

19.(55?(1)l+M:(-------)-T(-—)+(-2)3;

2318

(2)W^jfg:2x-—=-l.

2

20.(85?W,SM,-a2/>-[-a2/>-<Aabc-a2c)+4o2c],￡4>a,b,??￡fr,yKcx2?+2y2

22C

S-4x/+4W^n^ji.

21.(10ft)xaü?’?4x+2m=3x+l3x+2/7?=6x+léKjMffiR-

(1)a<j<;

(2)M^(2m-2)2°'9M.

22.(105?^m?f￥,600

Té,<^S^518TU.

(I)!üiJ±^WTa<iS^#^^7ü?

(2)50%

zK^M'è^ffl^ioOTü,

23.(125??,BMA>B.C.D.E?R)-<^±,S.AC^BD,

(1)WBè;

(2)^AD=30,AB=904,^&:BE^&.

ABECD

i,c

[WJ?-MM<^WPnT.

LW1A.?flfWiêgWaf?tl*,m￡S&,

B.^ABWBAMI^-^,#iWWi￡;

C.M?/’WABflW?.W&AP=PB,iOi^Oh

D.MAP=BP,SP^?P^-^mABW+a,

ifà&-.c.

2>A

LfcWlJE-(3-x+j)￡fê#,MX-J=|^ABPPJ.

JM^=-3+x-j,??’*-J=p??.^=-3+y=-|,&&A.

[￡?]

3>A

[^iTOm-Nrspni.

[WJM:-2-|-3|=-2-3=-5,

tt^^A.

[￡?]

4,A

WM:2-(-8)

=2+8

=10CC).

A.

Affi:?WW?

5>D

[#tfrléMsWMmim.BPnTW?^.

LWMJM:M?^aWIt?-l?&?35

D.

[affii

6,A

2

[WM)M:

A^?x=--^A^Steià^T^ià,i?.A#

2;

3

B<Kffix=—&Bfê

2;

C^.?x=--^A^gtejà^^ü,&Cfê;

2

D*.=?&Dfê.

2

A.

[￡?]

^??^?WMèü^?R,MB^?TJExnT.

7>D

2Y—5f)

[Mtffi——m2>

10x+40

-----------m2,10m2,nT^ll:

8x-50lOx+40

--------=-----------+1i0n.

35

D.

8'C

[WMlM:

VZl+Za=Zl+Zp=90°,

.'.Za=Zp.

&f?c.

[?]

&MiW^mn^T90°(Ift),MW&I::

9.B

[MtfiW^B^^W^x,WJM*WM#Mx-7x+7,=Mf?M3x,@$x?Ofl?l3x>tèM3

B.

10.c

[##f]?m?mibaI^W￡?^JWBPnT.

(WM1A.-JMWM-b

B.^?UV’ITO?,jEf?,

C.5>?￡,

D.^^2x--3x-5^^2,MM-5,iEf?,

?:C.

[^m

IsJ^?ù^^iR^,

il.c

[^tfr]Wy+l=x=-2,BPnT^tByM.

[WM]M:￡y+i=x,WJ

a(y+\)+b=O^'^:ax+b=O,

V—%—ax+b=0WM^x=-2,

:.y+?=x=-2,

y=-3;

c.

12,A

r^tFflW^x,

[WMlM:OMfpffMmxTê,Jü1JW^80%X7ü,

é?üM:80%x-120=20%X120,

MM:x=l.

BP^jgWnnn#m?17ü.

iftf?:A.

ra?]

-,?S???4#,W#20#,

13,120

éOHZBOE=-ZEOC,ZAOE'=-ZCOE',ZEOE'=SO°,

22

.*.ZC?￡'=ZCO￡=40°,

:.ZBOE=ZAOE'=20°,

.‘.ZAOB=20°+40o+40o+20o=120°.

14,5X

[##T]mM^RP?L

[WM1M:10-io#,miRldb^5#?^5#.

5#.

[￡?]

MS?t?^iEf?llM“1E”fl“$?”

15,PM

[5>t)T]IgHf?M^gpnl.

[WJVPM1EN,

.-.PM^aaêa,

?PM^MUS(?ssm

16,1

b,c??:a+b+c=l,nBWHba,b,cMM^l^Z^,&j5#￡4tf?BP

PT.

[WM1M:V#^W?a,b,C^?:a+b+c=l,abc5^1

.'.a,b,l'MU'iS

Sa,b,c+?aùW^lW,

IM^=-1+1+1+(-1)=1.

Sa,b,c2W,

IM?￡=-i+(-1)+1+1=1.

1.

[?]

*B±￡?f?￡$Hè4tf?,ftèa,b,

17,1.5

???AC=8,BC=5^tHBCW-fé,SèDlABmAD!$?￡.

[WJVAC=8,BC=5,.*.AB=AC-BC=3,X'.'D>ABW4>^,/.AD=1.5,^^1.5.

Laffi]

H,

18,(1)^wtlf;(2)

[^i(i)mw.

(2)r?iOnr.

[wi(i)M,

4*---------)-------*?—1?—

(2)fclffl,

19'(1)-5;(2)x=-1.

(2)iBPRT.

12

[WJ(1)J^=(---------)x(-18)+(-8)

23

12

=-x(-18)--x(-18)+(-8)

23

=-9+12-8

=-5;

(2)W4x-(x-1)=-2,

4x-x+l=-2,

M,W4x-x=-2-1,

@3x=-3,

Wx=-1.

[?]

,,15

20'-ab+3abc-5a~c,—

2

(W1?WWmiHb'c^a,^è^aùinMvg'ê-isMS^fS,^?Ai+M,

IWt?:cx2“+y-4x/+4=l,

:.2a+2=l,b+4=2,c-4=l,

.'.a=-----,b=-2,c=4;

2

13

—a2b-[—a2b-(3abc-a2c)+4a2c]

22

13

=—a2b-(—a2b-3abc+a2c+4a2c)

22

3

——1a2b-----a2b+3abc-a2c-4a2c

22

=-a2b+3abc-5a2c.

je?=-|,b=-2,C=4KA±^W,

jg^=-(--)2x(-2)+3x(—L)X(-2)X4-5X(—-)2x4=—+12-5=—.

22222

21,(1)-;(2)-1.

2

r^wi(i)

(2)m

M:è4x+2m=3x+lW4x-3x=1-2/77,MWx=l-2m,

1—2/77

é3x+2m=6x+1W3x-6x=l-2m,—3x=l—2m,Ox=-----------,

3

1-2m1

W?Wl-2/77=------—,MW??7=-,

32

?üW*3—;

2

1(1A2019

(2)&m=-RA(2m-2)#2x--2=(-