福建省泉州市洛江區(qū)北片區(qū)2023-2024學(xué)年數(shù)學(xué)七年級(jí)第一學(xué)期期末檢測(cè)試題含解析

?S^mfHrl5i§?IE4tME2023-2024

2.?Wffl^fe?aù?!?^^?

3.mm^M?ra,#u#wt?￡,

-,?&?:AA?#i24"'b?,$<h?3#,&36#.￡<^^1^04^^,RW-?>mmW.

1.B&A,B,CM^/IèO.^AB=9cm,BC=lcm,A.()

A.IOC/ZJB.8cmC.10cm8cmD.

2.

3.mK3^n?fl2W,TJlJS^?E^M()

A.3m+2nB.3m—2/7C.3(m+2/?)D.3(m-2/?)

4.^?P(3a+l,2-a)^fx!ft?^4ytt±,JO()

757

A.(0,2)B.(0,-)C.(—,())D.(—,0)

33,3

5.20201580000A,&1580000()

A.0.158X107B.15.8xl05

C.1.58xl06D.1.58X107

6.A^3x+l=2x-2?ùWA()

A.x=3B.x=—3C.X=1D.x=-l

7.?/ba<JW()

A.-V2B.0C.1D.73

8.|-2019|^T()

11

A.|-2019|B.2019c.------D.

20192019

9.T7d￡-^:-5,1.1010010001...,3.14,—,20%,-,

73

A.34"B.44^C.54^D.64"

10.A/4m+3,m-l)^>’^±,jjliJAPéftélafaA()

A.(0,^1)B.(-3,0)C.(-3,1)D.(4,0)

il.()

A.—2x2y-^jxy2B.—^27TyC.3mn-^j—4nmD.—O.Sababc

12.ioo^rai5o^^,

A.2xl00(25-x)=150xB.100(25-x)=2xl50x

C.2xl00x=150(25-x)D.100x=2x150(25-x)

-,?2?(??4#,W#20#,:mw??i)

13.4i$O[<.

14.M,%ZBCD=50°,WJZ1=.

15.OKBM?28WWWf??24^X/W7Kffi±-WtlWKM20MS

T_____/J<.

16.M,W^OAf?T?ffl30o^-|qJ,^OBf?Tm^ffl60°^|R],?!]ZAOB=.

17.&?*-^nmaWF?,

18.(5#)+DE-.EB=\-.3,EC=\,

ADECB

19.(5^)(x>6)*P,ZM^W?SW^^ttOJ507ü,

^IOTü,?iS??Of?^^.

9#rtHW.

(D___________Jü;%,

(2)ax=12W,IWé.

(3)zjOS?Ml^?gm^IOà^-^,WWW

20.(85?W?^:

4?l)Hc

-----------1—*—?—?—?—*—?—è—è—?-----1------1-------?

$432-1012J456

(1)aC-èg^D^I?^._____,;

(2);

M:??±,mMW5Wa3Un,(fflm,

(3)1,?jx.

21.(105?a*b=a2+2ab,f?]#n1*(-2)=12+2X1X(-2)=-1.

(1)1￡￡(-2)^1M;

(2)^=r(-2)Zx=-I+x,^xéfà'?l.

22.(io5?

?er

ai*J*?3*1?4M

Mlv012345678

?2ff91011121314151617

?3tr181920212223242526

?4?r27282?303)32333436

.............

ffla,,,,,/?n#]&a43=294fr%3?iJM1-)

(1)B&am?=49,m=,n=

(2)^MW5^aMZW^2021?

ft't’?iAft'hmfc;WMSè;

(3)'a-"A?amn=,

23.(125?M,ZC4￡>^ZCBDW?￥5)-^^P.

(1)^ZC=35°,Z￡>=29°,tZ/>IM0fe

(2)MZD.ZC,Z/W^.

1,c

^c?^aAB±^aca^SABa<j?^±,

[WJa￡ci￡al&AB±itf,M,

.4CB

AC=AB-BC=9-l=Scm,

?‘?A,CMj&|'5éft￡l?$5M8cm;

a?c?aè&ABftjO^UBf,Suffi,

àBC

AC=AB+BC=9+1=U)cm,

.‘.A,CW^I’s]WB?i^>10cm;

C.

iam

2,C

[#0T1WtWIBW,-ènT^ffS?

[OP]A.

B.

c.

D.

TO:C.

LaBtl

^WSlE^aù^ffS,MJO?11mMt?lWffl?

Z”4^?E^?(EIIW?)JWOT.

3,A

[##flmf?3fè?^3m,n22n,m3fè-*g?f?23m+2n.

(WJM:3xm+2xn-3m+2n

W&:A.

[?J

4UB

W.

[WJV?P(3a+L2-a)xyft±,

AP?yttl,3a+l=0,

MW:a=4’

3

7

:.2-a=-,

3

.?.?P?Mà^:(0,|).

B.

xWtfTO??ùW,

5>C

[^■tlf]^^^?xlO"M^,aM^^Tl/J^lO?.

LT￥M1M:1580000=1.58xio6.

C.

6,B

MM,

[WlMfê,3x-2x=-2—1,

x=—3.

B.

[?ffltl

7,A

momfo,o^?,m^ftkSBppiwtB^.

[WJ-V2<O<1<V3,

.-.<<)?￡-V2.

W&:A.

M

8,B

[#tfr]M^JfflW<a<J?5CBPnT#fB^.

(W1|-2019|=2019,

?:B.

[?]

*S±g?TtêM<a,iE^ieS^<W?5CW?^.

9>B

r^-tfrif??oim?jZBPw

22

+3.14,—,20%iè4>b,

7

22

—=3.142857142857,142857>MM,

7

B.

22

*??TW?éKJ￡X.WW^^aù?,WSI&aü/b?^W^<?P&—

SüXWi,asiJM,

10,A

[##r]

[WJv?P(m+3,

.’.m+3=0,

fa-fa:m=-3,

.’.m-1--3-1—-4,

Pf??(0,-4).

A.

Myo

11.c

[?WJM:A.

B.

C.M

D.aw.

&&C.

12.C

MW(25-x)^IA^j￡c^,

WWWifêM??nWHlW^M,^^JHi^raHPPT.

[WJèJOtff:WJW(25-X)￡TA￡/*W:.

100x4-;150(25-x),

:.2X100x=150(25-x),

C.

[?1

-.W20#,ft^￡?￡￡?a￡±)

13.±4,±3,±2,±1,0

i?ülM?aWM'^4,WWMW±4,±3,±2,±1,

0.

14,130°

[W]frlffl,Z?CD=50°,Zl=180°-ZBCD,MZ1=13O°.

130°.

15,10

[Mtff]V^a)I^^?<jM^28^X//b8t.?ié2Kfa<JW^24?//jNBt,

(28-24)=2=2(^fc/BD,

20=2=10(/MD.

10.

?:?WMM=l$zKi￡S+zKM?,?M?=?zkM-zkMM;

16,90°

[MtfrlBPW^.

[W]M:M,

èSPT^I:ZAOB=180°-30°-60°=90°.

90°.

iam

17,1

[##T1?n?,?BP?W?.

(W1M:S^m^3/Mè2r^,

1-

[￡?]

=,7<b@,?OmSm)

18,1.

[#tfrl&DE=x,'^\BE=3x,SM4’MEC=l?iJHl^^i±ix,mW-

ions&DE=x,

VDE:EB=1:3,

:.BE=3x,

’.’C,DftMftAB,AC^ti,BD=Ax,

14

.'.CD=-BD=—x,

33

.'.CE=-x=l,

3

:.x=3

:.AB=—x=16.

3

19,(1)lOx+240,9X+270;(2)SèWtff;(3)M4>Mt3367ü,SJWSJ?

flJZJêJ^4^-E?3￡

LW](1)

(2)^x=12^J^à(1)

(3)^S?WMBPnI.

(WJM:(1)èMW:?a^?^Wm^50x6+10(x-6)=(10x+240)7ü!

(50X6+1Ox)X0.9=(9x+270)?,

(lOx+240),(9x+270);

(2)ax=12ltf,5010x12+240=360%,

509x12+270=378%,

-.378>360,

??■50??^kH^W?

(3)<:?#336??

650x6=3007C,4￡^3$^10x4x0.9=36%,^336jü.

[?]

20,(1)1,2;

(2)4,7,|/?7-/?|;

(i)-laE-1.

r^Wl(1)

(2)Wè?WWttiMNZfai&W?;

(Da$g(2)wfn&ù&w,JSWMHPPI^Iü^.

[WM1M:(1)èfflO,mMOM?BD2.

1,2;

(2)èffl?JMaB^EfiWit?M,

OO?n,MNMN=|m-n|.

4,7,|m-n|5

(1)è(2)W,W±^xa<J^P^a^-2WaBZfHjM^>bWJ|x+2|=l,imx=-lj￡x=-l.

-m-i.

L?]

21,(2)-8;(2)x=2.

rw)(2)M^a<ji??M^m?BPRr.

[WMl(2)(-2)^2=(-2)2+2X(-2)X2

=4-22

=-8j

(2)V(-2)^x=-2+x,.*.(-2)2+2X(-2)XX=-2+X,BP4-4x=-2+x,

MW:x=2.

[^B#]

*?lU??fiê?W^^^T^S^WT+?,^M-7G-?e,SM?^^JHiS;T?M^?.

22,(1)6,5;(2)?MMff;(3)9m+n-10.

[$<](D^mfê^?tJ^BPnl^M;

(2)X,x+4,x+10,x+12,x+20,MJsWS?2021

(3)

[#M1(1)miWWJ?ma?mn=49Bt,m=6,?=5,

6,5;

(2)X,WJM>44-^nI?^:x+4,x+10,x+12,x+20,

WJ;x+x+4+x+10+x+12+x+20=2021,

BP:5x+46=2021,

MM:x=395,

V395=43x9+8,

.?.39544eH9?lJOb

’.'x+4=399,

:.f?,

.-.?415??ù5>bê?Z?^2021;

(3)fOJOnTM:d?m=9(m—l)+n-l=9m+n—10