文档介绍:该【黑龙江省哈尔滨道里区七校联考2022年八年级数学第一学期期末质量检测模拟试题含解析 】是由【cjl201801】上传分享,文档一共【18】页,该文档可以免费在线阅读,需要了解更多关于【黑龙江省哈尔滨道里区七校联考2022年八年级数学第一学期期末质量检测模拟试题含解析 】的内容,可以使用淘豆网的站内搜索功能,选择自己适合的文档,以下文字是截取该文章内的部分文字,如需要获得完整电子版,请下载此文档到您的设备,方便您编辑和打印。:.
2022-2023
1.
2. !"#$%&'()'
*+,-./0"#12B
23*4-5/0"#16789:;83*
3. <=>)#?
(@'AB)CDEFG
.HIJKLM30)N300O
.y=-gx+2,TU<VWX:Y
[\]3,-1[^_\-`[a
:Z[ghijklm:nop
BqY6
)'AABCs)ZC=90°,NB=54)tNA:uvK
CU--------
°°°°
:nyz)r{|}alY+J~+/6|=0,tn
op:pYKO
A.nopB.ynopC.
onopD.onop
!33=32"-34.-3>=-37%@-32--32=-81%'s
WX:KO
:Y
A.`pD.
onop
6.Hh ¡10km:¢£s¤¥¦§)Zs-40¨
©ªHh«:¬­:®sK¯°Ob±²tK0O³´:SZ[)
Tµ¶·¸¹120º»4¼:½¾uv15¯°/±4¿À±)
­Á6¯°4ÂÃÄ60Å>Æ.ÈsWX:KO:.
****
7.+,-./0123ABCD45647*89:-;<=>4?()
A.(x+a)(x+a)B,x2+a2+2ax
C.(x-a)(x-a)D.(x+a)a+(x+a)x
x
:^EFG4x4HIJK?()
x+2
>-<#-2
-TUC4VWX-YMNZV[C+\]^_,`a,
(d-2)eyfg-hc3(2"1,3"+1)ij()
opqrs(Zts3C-u24C)
11.+,-AAOCvAAO8wjx]y4z{-ADOBvA4O8wjx]BOz{-OC
|}~jcE,BO|AC}~jcf-bNC=15y-NO=25y-hNOR74
Q:.
12.
“G?”-kQ:
=5,m2+2mn-3n2=3P+9”-PH-3n-hm2+ir=.
14.+,-A0,l-A2,0-43,2-A5,l,,4-c&”
x-2
%+=2,%Q=1,h:x+1z->24I.
34ZQ* ¡¢?72y-hn.
18.£L*¤3Q*¥c4`Ez¡]-¦*¤3C§7*n¡3-*¤3
3.
np¨©su66C
19.10C+,-eR3ABC<-M2,N2,NBAC=30y-EAB4<c-ª
BE«¬ABDE,­®AD,CD.
1¯
°AADE^ACDB%
2bBC=±-eACg²QcH,B[BH+EH³t-´¯/*³:.
D
B
20.60OÉÊTUËÌ)Í>GÎ:
2
ÉÊ'Ð5RÑ:´ÒgÓ±)Ô?ÕÖÐ.×´Ò:
*¶______2_2¸+1273+1i
'V3-1-73-iV3+1-^2-12
.23T½T¾1
-=+1
'V3-1V3-1-V3-1
KØÙOIJÚÛ:¶TUÜ:
2
¿1;
222
V3-175+73+
KÝÞO+++V2n1V2n-1=|
++
21.60OwxNAOB.
ß*NA'O®,àNA'O'3'=NAQB
1rZ1,]vá¤)âzvãäåæ)0¨ç04,0B
C,D
Z1
2rZ2,å.èéO'A,]vá¤)0Czvãäåæ)ç0'4Q]C:.
3]Cvá¤)CDzvãäåæ)g-2×så:æçQ]R4
4\]3cåéO'B',tNA'OE=NAQB.
Ñê*Z×ë)ìíîï
ð-"ó
2wx3x-22=27,ßX:ô.
)yAABC:yzv10cm,]õH0¨YyBCHC4:ö
])]PH0¨÷ø]8HC±ÃÄ)ùúû:¾uüv2cm/s.
1rZ1,ýþPQ,ß_\ÿAPCQ;
1
2
2,
APBQ
M,PNAMQ
!"#$%&'()*.
3
3,
P,-./018CC421APBQ
345NAVQ!"#$%&'(
)*.
9:;<=>?***@A!B:CDEFGHIIJ4K
L;)MNAOPQRSTB:UVWXYC:UA!Z<D.9*
[\]^_`abcd6:Uefghij)klmnopqrsijthu:.
wxmnyz{|c}~%O
.
1?Dh
$
2
BC~h
;)31.
qBC~h*
&a)*
:cUl~{).8=
%10o 10u5¡¢£¤m¥$8=105
d6¡:¦¤§¥!¨38©20350¥$48©
18344¥.
1&¢£¤ª:¦¤6«
2¬8=x­3y¥®'yYx¯°*±²³.
6«´RSABCµAC¶·µAB¸¹|ºµAACD,º
µAABE,
/BAC=30EF±AB,»¼F,
DF
1½!AC=EF
2&¾¿gµADFEÀlgµ.
XÁÂÃ
tqÄÅoÅ36Æ306u
1D:.
ÂCÃÄÅÆQÇÈ4ÉÊ-ËÇCÃÌ*ÍÎ-Í/1Ï4ÍÎÐÑ.
ÂҨĨ°ApÓx=3,hy=LX3+2=1,h,Ô£c3,1%ÕA=>%
3
BpÖ×=°<,hQÇÈÙ£kop7lm-ÕB=>%
CpÖÚ=Q°<0,hyÛx4ÜÝÞßt%ÕC=>%
DpÓx=0,hy=2,Óy=0,hx=6,h56°gx2x6=6%ÕD1Ï%
ÕͰD.
ÂcàÄ
ásâã0QÇÈ,lgc4äåæçvQÇÈ4ÉÊ-1ÏèéQÇÈ4ÉÊ
?¨s4wê.
2pD
ÂCÃÄÖsFÅÆn¡3ë¡v180°WXCÃ_ì-ÐÑ[¨.
ÂҨĨ°eAABC<-NC=90°,NB=54°,
:.NA=180°-90°-54°=36°.
ÕͰD.
ÂcàÄ
ásâãn¡3ë¡ví-îïèén¡3ë¡v180°?¨swê-ðñÑò
x¡n¡3óô¡õöWXCÃ.
3pC
ÂCÃÄÅÆ÷ø4ÉÊÑùa,b,c4I-ûÖüýí4þíÐÑÿ
.
a-+JA-2+K=0
a-1=0>b2OtcV3=0
a=],b2>c=G
,./+C'2=1+3==4,
"#$
"%&C.
'(
)*+,-./0123456781978$ *1:;< =a,b,C1?$***@A
:.
4EC
F
G* FHIJ$KAB$LAB$MAB.
AB1N3O.
"PC.
'(QR0STU$R0VW$X0TY.
5ED
ZF
[\]N^72 %.
[\]N^72$_`aOPbcdN]N^72.
"PD.
'(
)*+,-]N^72$<ef*$ghi.
6EB
ZF
[\*j1klmnop0123$qrs=T:1Pbmt$uvAJ.
Hwx28Zyz{$|x40Zyz{$}~w|-12Zz{;
"HABK[\|z{j1
y1y|1=10+=15
60
/y"KAB
Mw=XZ|$N:
1010
xx=x(18+x)
28-1840
`x=6,"MAB;
LMwoz|y$}16x-^=6km,"LIJ;
28018
}~AB1mNOHKM,
"PB.
'(
* '+,¡¢£op01¤¥¦D$§¨op0123< *1:;.
1C
[\©_$SAª=(x+a)2=x2+2ax+a2=(x+a)a+(x+a)x,
"PC.
8ED
ZF
q[\Z«N¬­1®¯°=:±x1V²«$l=³1´?µ¶·_.
X
Z«¸¸N¬­$...x+lWO,·xW-1.
x+2
":.
'(
)*+,1<Z«N¬­1®¯$hZ«N¬­1®¯<Z¹V²±º< %*
1:;.
9EB
ZF
[\017­»¼l ·_`.
[\½¾©_#¿À4Á1`ZZÂ12E4E10E6,
}~#¿ÀÃÁ`Z=12+4+=8,
4
"PB.
'(
)*+,-½¾Är©E017­²Å$ *1:;<8 *¬$§¨01
l ªÆ.
10EC
ZF
'xyÇ1®¯<ÈÉÊ0,`='4Ë,21"=0,uÌÍl='B
1ÉÊ4ÎÏ.
,'42xyÇ$
.".n=0,
...'B1ÉÊ-1,1.
'52n-l,3n+lxÐÎÏ.
"PC.
'(
)*Ñk+,'1ÉÊÒ*$ Ó)*1:;<§¨ÔaOÎÏ1'1ÉÊ1ÕÖ
ÎÏAA$ÐÎÏ/A$ÎÏ//$aÎÏA/.
ÐEר*ÃÙ*3Z$Ú24ZÛ
11E100°
F
*¬[\ܲ123»¼1²ÝÞßl=NE48NA6à$»á
âDã180°l=N3E4,·_`=NOEC10.
AAOCAAOZ?:±¾ä4£å$
:.ZC=ZABO,ZCAO=ZBAO,
,%ADOB&&AOB:±¾BO£å$
:.ZDBO=ZABO,ZBAO=ND,
VZC=15°,ND=25°,:.
ZFAB=ZCAO+ZBAO=25°+25°=50°,
ZABF=ZABO+ZDBO=15°+15°=30°,
ANBFA=180°-50°030°=100°,
VNDFC=4BFA(eÈ)
AZDFC=100°.
ÊÂÿ100°.
ËÌÍ
ÎÅÁn?ºÏ<ÐÑ?ºÏ<klº=ÒÓÔűÕ.
12ÖS"*
Ë6×ÍÐÑØ¾Ù¾!ÚÛÜj.
ËÝÔÍÔ¿ÞtÚ­ßି&S"*
ÊÂÿGS"*.
ËÌÍ
ÎÅÁncؾÙÔűÕâØ¾Ù¾!ÚÛ.
131
Ë6×ÍÐÑ“2+2mn3n2=%+3§)(æç§)=3m+9n&'m-n=3,èÐÑ?Àé
ê³Üj&Ô.
ËÝÔÍV+2mn3n2={m+3n)(mri)=3m+9n=3(m+3n)
m-3n
m-n=3
m2+n2=(m-n)2+2mn=9+10=l
ÊÂÿ1.
ËÌÍ
ëÅìíÁnî³6Ô­ÔűÕî³6ÔéÙ¶?Àéê³­.
14(3029,1009)
Ë6×Íïðjñòóô¿õö÷ñòøù+2,+1,+2,+155}ò
ïú*,ú*æc3ûü$õöýñò-1,+2,-1,+255}òïú*,ú*,
æc1ûü:.
#ëÜjÿ439.
+2,+1,+2,+1
3!"
#-1,+2,-1,+2çç
1!",
2019
=1009....1
2
4oi9&'2+1(X)9x3=3029
(9#'0+1(X)9x1=1()09
:.A0l9(3029,1009)
)*+'(3029,1009)
,
-./0&.
12.
34.&05.
156
71289/:;&<=
>(IX¸2@().
B:XH2.
)*+'XH2.
,
89/:;&<=8DE'F.
1666
7GH12IJKL9
MN9OP'(x+l+y)(x+l-y),QM
x+y=2,x-y=\NRSB.
(x+lT-y2=(x+l+y)(x+l¸y)
Vx+y=2,x-y=1
NRW9
B
(x+l+y)(x+l-y)=(2+l)(l+l)=6
)*+'6.
,
[\IJKL9&]^
_`abS..
1765:.
7nde&fghij72@
kldehim360@
nBl
de&d5.
186o.
7pqldende
k.:B
n-2=7,
Bn=9,
Sqldeode
)*+o.
r6*.st668u
1961vwx7y2BH+EH&z{|'1.
71}ZvwADEB~drie
Q12SASSvwy
2
E0ACE
BEACH.HS'
<=&.
1RtAABC
ZBAC=10°,E'ABd&
.,.BC=EA,NABC=60@
999DEB'~drie
.=DE,ZDEB=ZDBE=60°,
.,.ZDEA=120°,ZDBC=120°,
/.ZDEA=ZDBC,
.".ADE^ACDB
2
E0ACET
BEACH,HS'
<=&
kEH=HE',AE'=AE,ZE'AC=ZBAC=10°,
.,.ZEAE'=60°,
...EAE'~drie
1
.*.EE'=EA=-AB,
2
ZAE'B=90°,
RtAABC
NBAC=10@
BC=5
AB=2GAE'=AE=V3,
ABE'=yjAB2-AE'2=^2732-732=b:.
..BH+EH&z{|'1.
E'
,-.[\~rie&
~drie&,
&z.6~
_`ab0&6
^ ¡z..&05.
206(1)73-1(2)77+1(3)'2"+1+1
871Û^8D/P¢£y
2H8¤8D/P
¥¦§Sy
3¨©ª82¢£g«
^Sn.
2_2(6-1)_2(6-1)=ö
1--22-
V3+l(^+l)(V3-l)(>/3)-l'
222
(2)
=^3+1+yjsV3+5/7\/s
(3)¨©¬9=$2:+1±1
2
111I,1
V3-1V5+V3V7+V5J2÷+1+J2÷-1
=g(G+l+øù+ú6+#++
_12÷+1+1
)*+'
1®¯1,
2:.
,
-.[\19&°]£H±19P'z²19
¥¦§³´
19S.19&°]£
µ¶.·¸
¹º]^19&
»¼½¾&.¿
µÀÁÂÃ.
216vwÄÅx7.
87kÆ-B">=OC=O7y=OT',CD=C'D',12“SSS”vw
OCD^O'C'D',¥¦12~rie&BZCOD=ZC'0'D'.
k.:B
OD=OC=O'D'^O'C,CD=C'D'
******@CD
OC=O'C
<OD=O'D',
CD=CD'
AOCD^O'C'D',
:./COD=/COD'
)=
,
-.[Érie~&JÊSSS,12³ËÌÍ&Á~BÎÏd
~
§Ð³ËÌÑ~BÒgÓd~
_`abE³rie~&<=
Ô-.&05.
226(1)-(6+1)x=5Õx=-l
87(1)Öר8¤ÙÚ0ÛÜ]£
ÝÛÞ]£
P²ß|
¥¦QÖ]
£×ØÙÚ¢£Sy
(2)^àIJÊÙÚnS.
á¬9=13)
=-(73+1)
û3(x-2)2=27
(x-2)2=9
x-2=±3
x=5Õx=-l.
,
[\â&ã]£µäågæJÅ&JÊ
_çèé.&0:.
;.
23E(1)üý*ÿ34PCQ
(2)NAMQ
33
60°(3)NAMQ
120.
(1)NPQC=90NQPC=90 !"
(2)#$AABP04BCQ(SAS),%&NBAP=NCBQ,$
ZAMQ=ZABQ+NBAP=ZABQ+ZCBQ=ZABC=60()
(3)#$AACPgZkBAQ(SAS),%&NC4P=NABQ,$
ZAMQ=NQBP+NAPC=ZABQ+ZBAM=120.
*+(1),-.t4PCQ .
/"0+PC=1023CQ=2t,
AABC12
999"=601
3NPQC=90°4NQPC=30°,
/.PC=2CQ,
5102r=2x2r,
$f=g.
3NQPC=904NPQC=30
CQ=2PC,
2r=2x(10-2r),
$f=T
67+-.g?APCQ .
(2)9:+ZAMQ
.
999ABC12
AB=BC,ZABP=ZBCQ=60°,
;;;<P,Q=>?1,
BP=CQ,
A4ABPABCQB:.
AB=BC
<NABP=ZBCQ=60
BP=CQ
/.ABP^ABCQ(SAS)
:.BAP=4CBQ
%.ZAMQ=ZABQ+NBAP
=ZABQ+ZCBQ
=ZA8C=60°(|)
.&ê{Eë
|******@.
(3)¶ìZAMQ&ê{Eë.
VAABC~drie
.,.AB=BC,Nfi4C=ZACB=60@,
/.ZACP=ZBA2=120°,
:P,Q&íî~
.CP=AQ,
AACP^DABAQ
AC=AB
<NACP=N8AQ=12(r
CP=AQ
/.ACP^ABAQ(SAS)
:./CAP=ZABQ
AZAMQ=NQBP+NAPC
=ZABQ+NABC+ZAPC
^ZABQ+ZBAM
=NA8Q+(180°-NBAC-ZCAP)
=ZABQ+120-ZCAP
=120@(|)
NAM2&ê{Eë
|******@.:.
<C
D"EF12 GHI GHIJ1 KGHI"
LMNOPQJ1 !"RSTUV:WXWE!".
24I1Y;2
71,12114
1/[ \]A^_`200^/a \]Abc^_40%,/d
&c^_eDfb20%,ghc^_&Df^[ \.
2
/a \]BCf^_bc^_40%,&BICc^_j]BI
Cf[ \k>lmn31,&BIC^_.
75
oghpB&B^_n71,,a=360°x=54°.
*Q;qrFc^_n200+40%=100s^t
999Df^_n100x20%=100s^tiJ\ uv+
2
BICfc^_n40%X100=200s^t
999BICf[ \k>lmn31
999Bf^_nw200=75
8
Cf^_n*x200=l25
8
xyzn+71,121
75
c=360°xc=54°
500
xyzn+54°
<C
D"EF{[ |}\a |}\,~[ |}\a |}\L`T
"LM.
25Is12n3
230<xW104y=2x,3x>10
4y=3x-10
1,n?nT34T:.
Ly
(2)L+0<x4104x>10.
*(1),n”n.
10+10=50
10m+8=44
m=2
$+\.
=3
y+2n3
(2)30<xF104y=2x,
3x>l()4y=20+3(x-10)=3x-10.
<C
d"EF5 ¡¢£T ¤_y¡¢!"NO¥"0"
LM.
26I#¦Y.
(1)§RtAABCB/NBAC=30°¨$©IªAB=2BC,«§¬ABE
12 EF±AB,/d$©!|AE=2AF,¯eAB=2AF,°±#¦
AFE^ABCA,²ghJ1 GH#¦AC=EF.
(2)gh(1)]³EF=AC,±^ACD12 ,µ¨EF=AC=AD,¯eADJ_AB,
±EFLAB,/d$¶EFAD,²gh·¸¹2 K¥#¦¹2 ADFE
·¸¹2 .
*#¦+(1),.,RtAABCB,ZBAC=30°,.\AB=2BC.
º»¬ABE12 EF±AB,.\AB=2AF..\AF=BC.
;.;ARtAAFERtABCABAF=BC,AE=BA,
/.AFE^ABCA(HL)..,.AC=EF.
(2)ACD12 ZDAC=60°,AC=AD.
AZDAB=ZDAC+ZBAC=90°.AEF/ZAD.
VAC=EF,AC=AD,.,.EF=AD.
;;;¹2 ADFE·¸¹2 .
E<+ KGH
GH
3.·¸¹2 K.