2020-2021学年广东省深圳市福田区七年级(下)期末数学试卷

学年广省深圳市田区七年（下）期数学试卷一选题每题3分，分）100A

B

C

D0.0000007A0.710

8

B0.7108

C7

D7A84

x

B

x36Cx325

Dx22+2A

BC

DABC1D180FACB9045AFDBDEABDBC

A10

B15

C18

D30hth10t4.23

AsBt

C240Dseq\o\ac(△,Rt)ABCC90AACABMNPAPBCD4AB15A153045D①②③④⑤A2

B3

C4

D

10CBECEADCFBDH①FDFBC④DHA①②

B①③

C②③④

D①③④二填题本题5小题每题3分共15分）11

122x+kx10DB25C35BPC142

y

4042+15AADABACDBCABMNACNMNPQ三解题本共7小题其第题6分，题6，第题7分，第题8分第20题分第题10分，第题分共分）

161a2

2

baba217[42+xy]yx218100123319ADBCDBCGADADBC4904ADEG1E23E1

20AEBDACABECBD1ABC2OCD21y123

b

4BA22

ADBCADACAD5EBDBEE

AASADDE2②ABBCAEADDC3③CDAB50CD16ACEDFDFEBAEDF的DF

参考答案一选题本分10小题每题3分共分．小给个项其只一是确）100A

B

C

DABCDC0.0000007A0.710B0.710870.0007DA844Cx325Ax84xBxxx

C7BxxDx22

+2

D7Cx3

x

Dx22+y

A

BC

DCCABC1D180AB13CD180DFACB9045AFDBDEABDBCA10

B15

C18

D30

F90E4545ACBA60ABCCFABDABChth10t4.23

AsBt

C240DsA40t2.13ABt

BC50D10cmsDDeq\o\ac(△,Rt)ABCC90AACABMNPAPBCD4AB15

A153045DAPBACDDECDEABDE4①②③④⑤A2

B3

C4

D①②③⑤10CBECEADCFBDH①FDFBC④DH

A①②

B①③

C②③④

D①③④FBD②ADCBDFDBFD①BEDBCDEDCBDCFHDCHCDHCDH④①③二填题本题5小题每题3分共15分）11

110022180

122x+kx10

x2+5xx+5x52+3x2x+52k3DB2535BPCBPC

AADABC++DCP+PCB+25+35+PCB+2535++PCBBPC1801206014224042x

x

y

x+x2

15AADABACDBCABMNACNMNPQ

BCH18DHMNPBAPAQAQPQAQBCAQADBCAQDH6PQ

三解题本共7小题其第题6分，题6，第题7分，第题8分第20题分第题10分，第题分共分）161a22baba21

2

a2

ab217[42+xy]yx2[4y2

4+xy]2xxy+x

+2]28xy+2y2

24y2131810012331

0.42319ADBCDBCGADADBC4904

ADEG1E

23AF3E1

ADBCEG4904AD1E2

3E120AEBDACABECBD1ABC2OCDABE+ABDEBDABCEBDABC2ABDBDBCBDEBDE656550CDOBD

2521y

ABAB12315b20504BA13000/2AB+b0C

ABy50+800xy300350515300+20005502050Dab2050

ABADABAD1520504x+800AD+AD2050mx+ny350320022①ADBCADACAD5EBDBEE

AASADDE102②ABBCAEADDC3③CDAB50CD16ACEDFDFEBAEDF的DF

ABEABEAC1AEADDE10102+DCAD//BCEABEeq\o\ac(△,A)eq\o\ac(△,)CEeq\o\ac(△,A)eq\o\ac(△,)''CADA