文档介绍:该【2021-2022学年湖南省湘西州凤凰县七年级(下)期末数学试卷(附答案详解) 】是由【cby201601】上传分享,文档一共【16】页,该文档可以免费在线阅读,需要了解更多关于【2021-2022学年湖南省湘西州凤凰县七年级(下)期末数学试卷(附答案详解) 】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。:.
2021-2022
1.2
3.!"#$%&'()*+
A.-1,2
B.-1,2
,2
,-2
4.,-./01,-
:;<
=>?“ABCDEFGHI”KLM
?OPQRST
UVWXYZ[\]^_VM
5.!abcAB,CdefcAEgh41=50dijkl+
°
°
°
6.mnop5qmn
Xy52C22
-+-=--+y===X
.
7.<uv<u
{wx|fcab:.
C.~fc5&5fc
fcab
D.!|fcfcf
|fcwf
8.a<b,
+3<b+-3<b-3C.< D.-3a<­3b
9.!*¢£4B¥C0§
-
=Z4
=
=Z4
®¯°±\5²³´“µ¶±”·u¸¹!º»¼½¾¿¼ÀÁµ
º¼À¶Â.·¼¿GÃÄÅÆǺÈ5ɼ½y¾5Ê¿ËO¼À
8p̵Í3pÎO¼À7pÌÐ4p.·½ÑÒ¼Å
Ê¿ËGÓÑÒÅÔ½
x¼¿ËGÓ+yp)mn×+()
AC8x_3=yRC8x+3=y,(8x-4=yÛ(8x+4=y
,(7x+4=y'(7x
4=y'(7%+3=y'(7x-3=y
Þmß.
12.àa1f'(á&(-3,2)âxãäå.
13.æKx5ç5Ð"é2,:xêëì+.
14.ím-22y“=3op5qmn2m+n=.
15.ðíñ-ò6,ëìàãôà
ÂÊíñeõö(!gì)÷$%
íñ.
16.{JZ:op5qmn2x+ay=55Ê4aH+.
17.xê×í4“ûHüý.
18.þÿ
.
/"#4
%/
&'(4
)ZK_________B:.
./0123456789:;<
=>
(1)1B389:CDEFI,BG389:CDHIB389:J
(2)LBG389:MB389:NO
&#PD(A,MSD4B.
=U
4BVW=%.
X“./Z[\”^_`./abc.
V16+V=64-/(-3)2+|V3-1|.
A
(3
xN2(%o3)
y z>{.
}~ufIjtL
22.
9
,4(3,3),8(-5,1),2(o2,0),P(a,b)cABCDAC
48(N44181
/W9+6,-2).
(1)B],G
.
(2)&B1G.
(3) A4,%A4Ml£.
¤¥¦§¨©ª«¬­®
;¯u°±²³´µ
¶±·¸¹º»¼
½¾¿À
ÁÂÃÄ
Å«ÆÇ.È©Éʲ³“Ë(ÌWÍÎËÏÐWÑ”
´µÒO
ÒOÓÔ©±;¤“ÕÖ×Ø»ÙÚ(ÛÜ)”ÝÞßàáâ
6ãbäe
^åbU æçq`è
(1)驹êϱ;¤ßàáâë
(2)^L1ì2íîïðJv%ñ4äe.X=òó9ô.:.
(3)é©õö±800÷
01àÔbøe§©±Ö×Ø.X÷ùW¹ê÷ë
24.´µè
ãúxÎy}~ax+by=c,ûbü0ý
þÿxy,
=2%+?
“”!"#$K%&
boDD
L%'()3x+5y=7,
y=-++[. K=Z,=|
(1)/03x-2y=1“”1.
(2)2345y/0+2y=3,678K+LW49:;<=>?@
(3)23x5yA6x+(n-l)y=3,678K%BL%C1DE9:E”
<=.
25.FGHIJ1IJKLMNOPQRSTUV600WXJYZ[\%
]^_`abcde.^_`afghiA5BjklmnopYqrST^setKL.!
"rSTtKLAmul6v58mul5vwxyz{|******@Amul2v5
8mul3vwxyz{|18000.
(1)rSTtKLA5Bjkm}ul~vlxyz{|0&
(2)4mul~v12WYq8mul~v15WYqhiAmul
8
mul24vBmlhidelv
yz{|&:{|.
26.(1,j4B,CDE3E,EM4AEF
CD3M,NFEM=4FME.
(1) ABBCD¡¢c[£¤¥¦@
(2)(2,G§¨©Kª(¬B­F®¯)E”¢NFEGC©3”±
HN,²4EHN=a,EGF=
³6G´Fµ¶9·¸=50©:a¹***@:.
º6G´dª±"a»¼½¾F
2%&¿ÀÁÂÃ[¨ÄŤ.:.
ÆÇ»ÈÉ
1.ÊÆÇËA
ÊÈÉËÈ)A5N1B42ÌÍÎÏAÐÑDÒ@
BN1B42¬ÌÍÎÏ8ÐÑÓÔ@
C5N1B42¬ÌÍÎÏCÐÑÓÔ@
DN1B42¬ÌÍÎÏÕÐÑÓÔ.
ÏÐ:A.
×ØÌÍÎÙÚÌÛÐÑÉ ÜiÝÞ:È.
ßàáâãäÌÍÎÙÚåæÌÍÎÈà2ç.
2.ÊÆÇËC
ÊÈÉËÈ)41414Fèéê3F¥ÏßÐѬ¯àë@
8©Eê3F¥ÏßÐѬ¯àë@
C.ìí¥ÏßÐÑî¯àë@
ngê3F¥ÏßÐѬ¯àë@
ÏÐ)C.
í¥ïíè¬ðñé.¥Èí¥òóÙâô9¥ÈF¥òóF¥E
Bõö.÷Fèé»íèðñéF¥øíè¬ðñéí¥.¦ù÷
ÙÐúÑ.
ùàáâãäí¥ÙÚ!"û">?üýþí¥F)ÿ27
/(
10).
3.A
!"!#$%&'()*+, -(-1,-2),
./#A.
012*+3$%&45!6,.
789:;2*+3$%&<=45>?2*+3$%&<=@!ABCD*
+<=4$EF@#(*+(+,+);(J*+(,+)()*+(,)(D*+(+,-).
4.B
!"!#A;!LMNOPQRSTUV:.7/W<T8X
B.;!YZ[\]“_`abcdefg”ijkSTlmV:.7/W<T8X;:.
C.;!lop[\
qrstSTUV:.7/W<T8X
u.;!vwxyzvw{|}~ykSTUV:.7/W<T8X.
./#B.
01:
V:tUV:
V:
!.
789:;UV:lmV:F/:***@UV:019:]*45
/P ]¡¢£¤¥V:¦§¨©::Xbªef«¬/U
V:]¡­®¯°V:±B²«V:³³/P:.
5.B
!"!#µµAB¸CD,41=50°,
Z-A==50°,
./#B.
01À©Á¥Â6,
Ã.
789:;À©Á¥ÂÄÅÆÇÀ©Á¥Â@!8BC.
6.A
!"!#AÉ+9=5JËÌÍ.<T8X
B:+y=******@EÑÍ.<T8X
Cxy=******@JËJÌÍ.<T8X
u/+%2=0@ËJÌÍ.<T8X.
./#A.
01JËÌÍÖb×ØÙ6,!.
789:;JËÌÍÖbJËÌÍÚÛÜ)ÝÞ#ßàá@âÑÍ.ãÍp
äåæi.çæiWÌè@Ì.<TéêëìÝÞèíJËÌ
Í.
7.C
!"!#A/WïðÖ@]ñðòóôõäñ$ðR8@öR8
.÷/W<T8X
B/Wøù3ðúûüÁÀ©R8@öR8.÷/W<T8X
C/WýþüÁÿ
;:.
"c.
#$%&'()*+(,-A#$/01(23,-B#$5
67
,-C#$
,-
.
:;<=
)>?@/01(23A'BC.
EAIHA"A."a<b,
a+3<b+3,:JKL
Bya<b,
a-3<h-3,:JKL
<bf
I<I,:JKL
<b,
-3a>
3b,:WXL
"D.
Y&Z'[\AF].
:;<=&Z'^:[\BC?@&Z'_`"abcdef/ghijjk
l“n”pq&rst_Lnu_rvbcwex/ghuywe
xzhq&rst{|_.
EAIH
E~IH
:u;<=',)1W(%&AFp'BC.',
))>~I].
EAFH
A"A#$N1=N2ABCD,pWX
B.#$43=N44BCC,pWX
=zz3,.-.AD//BC,LABCD,pWX
DyZ2=44,AB//CD,pJK
D.
:.
EAIHA"";
"A.
#$“8374”]Bx,y' s
¡¢pA.
:;<=Y£¤¥¦§ s¡¢¨©&ªB«JK¬ s¡¢A
'BC.
EAIHA"­l23=8,
8'®s#l2,
FGl"2.
®s#')¯°±]²³´.
p;<=®s#µ¶?@®s#')¯A:'BC.
EAIHA"(-3,2)²x¹'º»2.
FGl"2.
#$²x¹'º»&¼½¾'¿ÀAF.
:;<='½¾µÁ²X¹'º»&¼½¾'¿ÀA'BC.
|x-5<2
EAIHA"#$"
1
2^%Ç5<2.
FGl"Ç5<2.
X'Èl2% 5'l;X-5,É2]<2,$p¬&Z.
:;<=Y£¤¥¦§ &ZAF:'BCÊËÌÍÎh¨
Ï'&ªB«¬&Z.
EAIHA"#$"Ð"=1,
AÐ:"
Ò27n+n=:.
FG"7.
 s¡ÕÖ'×"Ø2gÍÎhÍÎh'' h1'ÙZs¡.
:u;< s¡'ÚÛuܵݠs¡'`ZÞßà"Ø2gÍÎh,
ÍÎh'' h1'ÙZs¡.
EAIHA"á<0,
1114<5<9,
2<V5<3,
1119<11<16,
3<VT1<4,
V16<17<25,
4<V17<5,
FGl"V1T.
â±ã>h'äÉ]FG.
:;<=£h h¹â±ã>h'äÉåæçè>hæçã>hA'BC.
EAIHA"ér%êë s¡2x+ay=5,
2+3Q=5,
Aa=1,
FGl"1.
#$s¡'AÕÖs¡B's¡#$As¡FG.
:;<= s¡'As¡'AÕÖs¡B's¡ABC.
>l
EAIHA"ììì&Z¢í~1<°ãA
a'ðñòóa>1.
FGl"a>1.
#$&Z¢ãAg&Z'Aôõö÷ø~AF.
:u;<= &Z¢Aô'ÜèßùúÜèûüýÜA.Ü&Z¢Aô'
üý"/äðä/ÉðÉäÉÉäþÿ .:.
18.
.
!"#$%&'()*+!'(,*-!'(./012-3456A,
:.=,
.4BA()
D
E.
F
GH&IJKLMNOPQR
SQTUVW&X&IY$.&Z[$(\]^H]5_`aNl=42XQ&
de.
19.
A<16+7^64-7(-3)2+|V3-1|
=4o4o3+V3o1
=V3-4.
GHpq&rstuvwxsyK$zK{|}~^xss
+
Vo64oJ(-3)2+|>/3o1|&XMN.
QTUVWpq&rsU
Q&deXUpqrs
qrs-U}MwsyK$zKsy|s ¡¢£&Uws
¢£¤¥&%rsU¦§}~&tu.2¨q&rs©pqª«¬{­
®.
3-x>2(x-3)°
20.
±,
²°³x<3,
²µ³x>-1,
D¶&·Eo1SXW3,
q»¼½E
¾¾¾.¾611.
-4-3-2-1012345
F¿À&·1Á·Ãq»¼½ÄMN.
SQVW&X-Å-¶Æ“%ÈR%ÈRÉÊR:.
”&ÌÍX
Q&de.
21.
Î+=Ï
x-2y=4(2)
µx2,³2x-4y=8Ò
²°-Ò³7y=-7,My=-L
Ôy=-lÕֵɳx+2=4,M×=2,
x=2
ÍK_¶&E
.y=-1
K_¶Ø® ¡ÙÅLMN.
QVW+Å-K_¶Ø®ÙÅ&ÚÛÙÅ&KLÕÖÙÅLÜ ¡ÙÅL.
22.
:
(1)43,1),^(1,-1),6(4,o2)R
(2)Ý&B1G;
Ý4041&¥â=6x3-gx3x3-gx3xlx6x2,
93
=18-^-|-6,
=18-12,
=6.
SQVWØ®.äå]'"&¥âæçèéêëì6&í
îXQ&de.
(1)GH6P$ð&ñòY.\©E6óôíõ2óôí6Bi,6&
ñòMNR:.
(2)GHæçèé6A$BC.|&ëì6E$/$G&íî{|tö÷MN;
(3)Ø®Ý4041&ø"&¥â¡ùúû'ó'"&¥âüxsMN³.
23.
(1)20+10%=200(ý).
þÿ200
.
(2)
360°x20%=72°.
(3)800x20%=160.
160.
!
"#$%&'(#$%&')*%+,-.&/0123.
(1))4567589:;<=
(2))360>?***@ABC89:=
(3))*%+,.
24.Dy=|x-=
(1)FG7HIJ3x-2y=1“7HLMN"
y=
PD
'=/7
=
(2)2Sx'yFG7HIJmx+2y=3“7HLMN"
y=--x+2,
*_m_3
TUUVL5-
K+L<4,
7"+Y<4,
22-
C
m>-5=
(3)2Sx'yIJ-6x+(\7l)y=3“7HLMN"
y=*;%+--:.
KL^_-
n=2b-KL9c6'3,g0h=
n=4b-KL9c2'1,g0h=
klmKopLoq^_b-_rst2'4.
(1)vwh-xyz{|}~IJ“7HLMN”;<=
(2)xyz{|~IJ“7HLMN”-xyh
N-;<=
(3)xyz{|~IJ“7HLMN”-xyh
N-;<.
!
FG7HIJz{|-7G7H
N-23vwh-
N-
7G7H
N-
N.
25.D
(1)-A-1xG-B
-1yG-
xyhC
¢£:¥
C¦¥
-A-1300G-B-
1400G=
(2)¨©Bª-«¨©A(2m+4)-
­hC:®¯+4)+15^2600,
1m<18
C14(²³<18,
m_-
kkkni<s15,16,17,18,
+1wG-
w=400m+300(2m+4)=1000m+1200,
v1000>0,
w¹ªº»¼º»-
=15b-wst-t1000x15+1200=16200(G)-
½b27n+4=2x15+4=34()-
¨©815-¨©A34-¾¿ÀC+Á-Á1
16200%.
(1)-A-1xG-B-
1yG-<C
ÃÄ::Å-;<C-A-
1300G-8-1400G=:.
(2)¨©8ª-«¨©A(2m+4)-<C
1-%+4)+15m'600,
Cm<s15,16,17,18,+1wG,w=400m+300(2m+4)=1000m+1200,
Æ)7HÇÈÉ;<C¨©B15-¨©A34-¾¿ÀC+
Á-Á116200G.
!
FG7HIJÊË7HÇÆ)-231vwh-~IJÊÌÇ2oN.
26.D
(1)vEMÍ94AEF
-,
Î
4FEM=,
JLAEM,
AB//CD-.
(2)ÏÐ&2,vAB//CD,B=50>
/.AEG=130",
ÎkkkEHÍ94FEG,EMÍ9
HEF=jzFEG,=^/.AEF,
=^AEG=65>-
ÎkkkHN1ME,
:.Rt4EHN1,EHN=
90°-65°=25°,
;a=25>=
Ñ9.ÒÓÔÕ
Ð&2,Ö×GØ×FÙ
Úb-a=".
ÛÜ
vAB//CD,
=180°-/?,
ÎEHÍ9"EG,EMÍ9UEF
HEF=QEG,MEF=^,
=>.4MEH=*EG=g(180>-0),
ÎkkkHN1ME,
RtÝEHN-=90°-=90>7
(180>7-)==Þ,:.
;a=-3=
Ð&3,Ö×GØ×ßàÚb-a=90>U2/?.
ÛÜ
A8//C0,
Z-AEG
EGF
/?,
67EH4FEG,Í9áâEF
11
,HEF=ALFEG,MEF=^^AEF,
4MEH=MEF-CHEF
1
=2ãä7"åæ
1
=^
=ç
ÎkkkHN1ME,
:.Rt?EHN1,=900-,
;a=90°-j/?.
è­yéÍ9ê-<Cä4EM=NFEM,xy"EM=NFME,<Cä4EM=NFME,
¼C~4BrCD=
(2)Ï­yÍêÈÉ<CN4EG=130>-xyEHÍ9NFEG,EMÍ9N4EF,;<C
4MEH='ä4EG=65>-xyHN1ME,;<CRt/kEHN-/.EHN=90°-65°=25°=
Ñ9.ÒÓÔÕ
Ö×GØ×FÙÚb-a==/?.Ö×GØ×ßàÚb-a=9(T-=0.
ì!
ÍêÈÉpí{-éÍ9ê{|î)-ïð231ñò
.óê
Í-ôõéö
=.óêÍ-÷øôéù=ú)éÌû2oüý.