bộ đề kiểm tra toán 6 7 8 9 học kì 2

PHNG GIẠO DỦC ÂÄNG H

ÂÃƯ THI HCK II - NÀM HC 2004 -

2005
Män : Toạn - Låïp 6
Thåìi gian : 90 phụt ( khäng kãø thåìi gian giao âãư )
H v tãn .................................................. Låïp .........................................................

Bàòng säú

Âiãøm
Bàòng chỉỵ

Låìi phã ca tháưy , cä giạo

Hc sinh lm bi trỉûc tiãúp trãn tåì giáúy thi ny ( cọ 3 tåì )
Pháưn 1 : Tràõc nghiãûm
Trong cạc cáu cọ cạc lỉûa chn A , B , C , D chè khoanh trn vo mäüt chỉỵ in
hoa âỉïng trỉåïc cáu tr låìi âụng
− 12
x
=
. Säú x thêch håüp l
20
− 100

Cáu 1 : Cho
A. 24

B . 36

C. 60

D. - 60

− 270
Cáu 2 :Kãút qu rụt gn phán säú
âãún täúi gin l:
450
− 27
− 90
−3
− 30
A.
B.
C.
D.
45
150
5
50
14
60
Cáu 3 : Cho
.Dáúu thêch håüp ( < , > , = ) âiãưn vo ä vng l :
21
72

A. >

Cáu 4 :Cho

Cáu

Cáu

Cáu

C. =

D. Khäng cọ dáúu thêch håüp

B . 11

C . -11

D . 21

11 2 − 1
= +
. Giạ trë thêch håüp ca x l
x 3 7

A . -21
Cáu

B.<

3 2 6
5 : Giạ trë ca biãøu thỉïc (− + ) l

5 7 21
2
12
A.
B.
C.0
5
21
3
6 : Viãút häùn säú 5 dỉåïi dảng phán säú ta âỉåüc:
4
4
23
23
A.
B.
C.
23
4
3
5 1
7 : Kãút qu ca phẹp chia − : l
6 2
10
6
6
A.
B.
C. −
6

10
10
2
8 : ca 120 l :
5

A . 24

B . 300

C . 48

Cáu 9: Bäø sung chäù thiãúu ( ... ) trong phạt biãøu sau:

D. −

D.

12
21

15
4

D. −

10
6

D. −

2
600


Khi hai tia Ox , Oy khọng õọỳi nhau, õióứm M laỡ õióứm nũm bón trong goùc
xOy nóỳu.............................................
Hoỹ vaỡ tón.................................Lồùp............. Trang 2 - Toaùn 6- óử thi hoỹc kyỡ II
Cỏu 10 :ọứi 60,75o thaỡnh phuùt ta coù :
A . 6075/
B . 3645/
C . 135/
D . 4500/
Phỏửn 2 : Tổỷ luỏỷn
Cỏu 11 : Tờnh: 1

13
104
24
12
.0,75 (
+ 25%). 3 : 3
15
195
47
13

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Cỏu 12 :Lồùp 6A coù 48 hoỹc sinh. Sọỳ hoỹc sinh gioới bũng 18,75% sọỳ hoỹc sinh caớ lồùp,
sọỳ hoỹc sinh trung bỗnh bũng 300% sọỳ hoỹc sinh gioới, coỡn laỷi hoỹc sinh khaù
a. Tờnh sọỳ hoỹc sinh mọựi loaỷi cuớa lồùp 6A
b. Tờnh tố sọỳ phỏửn trm sọỳ hoỹc sinh trung bỗnh vaỡ sọỳ hoỹc sinh khaù so vồùi hoỹc
sinh caớ lồùp
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Cỏu 13 :Trón cuỡng mọỹt nổớa mỷt phúng bồỡ chổùa tia Ox, veợ tia Oz, Oy sao cho
xz = 28o , xy = 56o
a . Tia Oz coù phaới laỡ tia phỏn giaùc cuớa goùc xy khọng ?
b . Veợ tia phỏn giaùc Om cuớa goùc xz . Tờnh sọỳ õo goùc ym
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Hoü vaì tãn.................................Låïp............. Trang 3 - Toaïn 6- Âãö kiãøm tra hoüc kyì
II
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PHOèNG GIAẽO DUC NG HAè
ệ THI HOĩCKYè II - NM HOĩC 2004 - 2005
Mọn : Toaùn - Lồùp 7
Thồỡi gian : 90 phuùt ( khọng kóứ thồỡi gian giao õóử )
Hoỹ vaỡ tón ..................................................
Lồùp ..........................................................

Bũng sọỳ

ióứm
Bũng chổợ

Lồỡi phó cuớa thỏửy , cọ giaùo

Hoỹc sinh laỡm baỡi trổỷc tióỳp trón tồỡ giỏỳy thi naỡy ( coù 3 tồỡ )
Phỏửn 1 : Trừc nghióỷm
Trong caùc cỏu coù lổỷa choỹn A , B , C , D chố khoanh troỡn vaỡo mọỹt chổợ in hoa
õổùng trổồùc cỏu traớ lồỡi õuùng

Cỏu 1 : ióứm sọỳ mọn Ngổợ vn kyỡ thi hoỹc kyỡ II cuớa mọỹt sọỳ hoỹc sinh lồùp 7 ồớ trổồỡng
A õổồỹc lióỷt kó nhổ sau :
Tón
ióứm

Lan
4

Bỗnh
7

Quang
6

Chi
5

Huỡng
6

Yóỳn
8

Ninh
9

Linh
6

Hoaỡng

7

ởnh
8

N= 10

Tỏửn sọỳ cuớa õióứm 6 laỡ
A.6

B.3

C . Quang , Huỡng , Linh

D.

3
10

Cỏu 2 :ồn thổùc naỡo sau õỏy õọửng daỷng vồùi õồn thổùc -5xy2
A . 4xy2

B . 4(xy)2

2
5

C . xy( y )

D . -5x2y

Cỏu 3: Khoanh troỡn chổợ hoỷc S nóỳu cỏu khúng õởnh sau õỏy laỡ õuùng hoỷc sai
a. Moỹi sọỳ hổợu tố khaùc 0 õóửu laỡ õa thổùc coù bỏỷc 1

S
b. Sọỳ 0 laỡ õa thổùc coù bỏỷc 0

S
Cỏu 4: ióửn õa thổùc thờch hồỹp vaỡo dỏỳu ......
15x3y +......................= 12x3y + 1
1
5

2 2
3
5 5
Cỏu 5 : Cho õa thổùc B = - 2x4 x y + x x y + 6 .Bỏỷc cuớa õa thổùc B laỡ:

A.3
B.4
C.5
D . 10
Cỏu 6 :Bọỹ ba õoaỷn thúng naỡo sau õỏy coù thóứ laỡ 3 caỷnh cuớa mọỹt tam giaùc :
A . 2 cm, 4 cm , 2 cm
B . 3 cm, 5 cm, 7 cm
C . 1 cm , 2 cm , 3 cm
D . 4 cm , 6 cm , 10 cm
Cỏu 7 : Trong mọỹt tam giaùc , goùc õọỳi dióỷn vồùi caỷnh nhoớ nhỏỳt laỡ :
A . Goùc õỏửy
B . Goùc nhoỹn

C . Goùc tuỡ
D . Goùc vuọng
Cỏu 8 : Nóỳu mọỹt tam giaùc coù trổỷc tỏm truỡng vồùi õốnh thỗ tam giaùc õoù laỡ :
A . Tam giaùc cỏn

B .Tam giaùc vuọng

C .Tam giaùc thổồỡng

D.Tam giaùc õóửu

Cỏu 9 :Trong tam giaùc ABC coù õióứm O caùch õóửu ba caỷnh cuớa tam giaùc .Khi õoù O
laỡ giao õióứm cuớa :
A . Ba õổồỡng cao
B. Ba õổồỡng trung trổỷc
C . Ba õổồỡng phỏn giaùc
D . Ba õổồỡng trung tuyóỳn
Hoỹ vaỡ tón.................................Lồùp............. Trang 2 - Toaùn 7- óử thi hoỹc kyỡ II
A
Cỏu 10 : hỗnh bón . G laỡ troỹng tỏm cuớa tam giaùc ABC.
G
Khi õoù
B
C
M
1
1
A . GM = AG
B. GM = AG
3

2
C . GM = AG
3

2

D . GM = AG

Phỏửn 2 : Tổỷ luỏỷn
Cỏu 11 : Thồỡi gian ( õồn vở : phuùt )laỡm mọỹt baỡi tỏỷp cuớa hoỹc sinh lồùp 7A nhổ sau :
Thồỡi gian
3
4
5
6
7
8
9
10
11 12
Sọỳhoỹc sinh
1
3
4
3
5
2
2
3
1

1
N = 25
a. Dỏỳu hióỷu laỡ gỗ?
b. Tờnh thồỡi gian trung bỗnh laỡm baỡi tỏỷp õoù cuớa hoỹc sinh lồùp 7A


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Cỏu 12 :Cho caùc õa thổùc sau f( x) = x4+ 3x2 - 2x - 1
g(x) = x4 +x + 1
h(x) = - 3x2 +1
a. Tờnh f (x ) - g (x ) + h (x)
b. Tỗm x sao cho : f (x) - g(x) + h(x) = 0
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Cỏu 13 : Cho tam giaùc ABC cỏn taỷi A .ổồỡng cao AH .Bióỳt AB =5cm, BC = 6
cm
a. Tờnh õọỹ daỡi caùc õoaỷn thúng BH , AH
b. Goỹi G laỡ troỹng tỏm cuớa tam giaùc ABC . Chổùng minh rũng ba õióứm A , G , H
thúng haỡng
c. Chổùng minh : goùc ABG bũng goùc ACG
Hoỹ vaỡ tón.................................Lồùp............. Trang 3 - Toaùn 7- óử kióứm tra hoỹc kyỡ
II
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PHNG GIẠO DỦC ÂÄNG H
ÂÃƯ THI HCK II - NÀM HC 2004 - 2005
Män : Toạn - Låïp 8
Thåìi gian : 90 phụt ( khäng kãø thåìi gian giao âãư )
H v tãn .................................................. Låïp .........................................................

Bàòng säú

Âiãøm
Bàòng chỉỵ

Låìi phã ca tháưy , cä giạo

Hc sinh lm bi trỉûc tiãúp trãn tåì giáúy thi ny ( cọ 3 tåì )
Pháưn 1 : Tràõc nghiãûm
Trong cạc cáu cọ lỉûa chn A , B , C , D chè khoanh trn vo mäüt chỉỵ in hoa
âỉïng trỉåïc cáu tr låìi âụng
Cáu 1: Phỉång trçnh no sau âáy l phỉång trçnh báûc nháút mäüt áøn:
A . 2x + 2y = 0

B.

3

−4=0
x

C . 0x + 7 = 0
1
5

Cáu 2 : Táûp nghiãûm ca phỉång trçnh ( x + ) ( x B. −

1
5

2
) = 0 l :
3

2
1 2
;−
D.
3
5 3
2x
x −1
+
Cáu 3 : Âiãưu kiãûn xạc âënh ca phỉång trçnh
l:
x − 3 3x − 2
2
2

2
A . x ≠ 3 hồûc x ≠
B. x≠3
C .x ≠
D . x ≠ 3 v x ≠
3
3
3

A.

1 2
− ;
5 3

1
2

D . − x+3= 0

C.

Cáu 4 : Phẹp biãún âäøi no sau âáy l âụng :
A . 0,5x < - 1,5 ⇔ x > 3 B . 0,5x < - 1,5 ⇔ x > -3
C . 0,5x < - 1,5 ⇔ x < -3 D . 0,5x < -1,5 ⇔ x < 3
Cáu 5 : Hçnh bãn biãøu diãùn táûp nghiãûm ca báút phỉång trçnh no?
]
0
5
A . x + 2 < -7 B . x + 2 ≤ 7

C . x +2 ≥ -7
D . x +2 > 7
Cáu 6 : Trong hçnh bãn . Biãút AC // BD , AB = 0,5 cm
0,5 B x
A
OA = 1cm , OC = 3 cm . Säú âo ca âoản thàóng CD trong O 1
3 C ? D y
Hçnh bãn l :
A . 1 cm
B . 2 cm
C. 1,5 cm
D . 2,5 cm
Cáu 7: Trong hçnh bãn ,cọ bao nhiãu càûp tam giạc âäưng
A
dảng våïi nhau biãút : QM // AC , PM // AB
Q
P
B
C
A . 1 càûp
B . 2 càûp
C . 3 càûp
D . 4 càûp
M
Cáu 8 :Trong hçnh bãn, biãït BI l tia phán giạc ca
A 1,5 I


BC
laỡ :

AB
3
B.
4

2

tam giaùc ABC. Tố sọỳ
A.

5
2

C.

2
5

D.

4
3

B

C

Hoỹ vaỡ tón.................................Lồùp............. Trang 2 - Toaùn 8- óử thi hoỹc kyỡ II
Cỏu 9: Cho hỗnh họỹp chổợ nhỏỷt coù kờch thổồùc (cm )
nhổ hỗnh bón . Thóứ tờch cuớa hỗnh họỹp chổợ nhỏỷt õoù laỡ : 4

A . 192cm3 B . 192cm2
6
C . 96cm3
D . 48cm3
8
Cỏu 10 : Cho hỗnh choùp õóửu , bióỳt chu vi õaùy 12cm ,
trung õoaỷn 15cm . Dióỷn tờch xung quanh cuớa hỗnh choùp õóửu õoù laỡ:
A . 180cm2 B . 90cm2
C . 60cm2
D . 360cm2
Phỏửn 2 : Tổỷ luỏỷn
Cỏu 11 : Mọỹt ọ tọ õi tổỡ ọng Hồùi luùc 7 giồỡ saùng dổỷ kióỳn õóỳn ọng Haỡ luùc 9 giồỡ
30 phuùt . Nhổng mọựi giồỡ ọ tọ õaợ õi chỏỷm hồn dổỷ kióỳn laỡ 10 km, nón maợi õóỳn 10 giồỡ
20 phuùt xe mồùi õóỳn ọng Haỡ . Tờnh quaớng õổồỡng ọửng Hồùi - ọng Haỡ
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Cỏu 12 : Vồùi giaù trở naỡo cuớa x thỗ giaù trở cuớa phỏn thổùc
phỏn thổùc

5x 2
?
3

5 2x
lồùn hồn giaù trở cuớa
6

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. Cỏu 13 :Cho tam giaùc ABC coù M laỡ trung õióứm cuớa caỷnh AC . Trón õoaỷn BM
lỏỳy õióứm D sao cho DM = 2BD . Keớ tia Bx // AC . Tia AD cừt BC ồớ K , cừt tia Bx
taỷi E
a. Chổùng minh tam giaùc BEK õọửng daỷng vồùi tam giaùc AKC
b. Tỗm tố sọỳ

BK
BC

c. So saùnh dióỷn tờch hai tam giaùc ABK vaỡ ABC
Hoỹ vaỡ tón.................................Lồùp............. Trang 3 - Toaùn 8- óử thi hoỹc kyỡ II
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ệ THI HOĩCKYè II - NM HOĩC 2004 - 2005
Mọn : Toaùn - Lồùp 9
Thồỡi gian : 90 phuùt ( khọng kóứ thồỡi gian giao õóử )
Hoỹ vaỡ tón .................................................. Lồùp .........Sọỳ baùo danh............................
PHOèNG GIAẽO DUC NG HAè

Bũng sọỳ

ióứm
Bũng chổợ

Lồỡi phó cuớa thỏửy , cọ giaùo


Hc sinh lm bi trỉûc tiãúp trãn tåì giáúy thi ny ( cọ 3 tåì )
A . L thuút ( Hc sinh chn mäüt trong hai âãư sau )
Âãư 1 : Phạt biãøu v viãút hãû thỉïc Vi-ẹt
Ạp dủng : Tênh nháøm nghiãûm ca phỉång trçnh sau : x2 - 7x + 10 = 0
Âãư 2 : Phạt biãøu âënh nghéa vãư âỉåìng thàóng song song våïi màût phàóng
Ạp dủng : Chỉïng minh âënh l : " Nãúu âỉåìng thàóng a khäng thüc
(P) m song song våïi mäüt âỉåìng thàóng b nàòm trãn (P) thç a song song våïi (P) "
B. Bi táûp : ( Bàõt büc )

Bi 1 :Cho phỉång trçnh : x2 + px + q = 0 cọ nghiãûm l x1 v x2
a . Gii phỉång trçnh våïi p = 3, q = - 4
b . Hy láûp mäüt phỉång trçnh báûc hai cọ cạc nghiãûm l x1 + a v x2 + a
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Bi 2 : Mäüt chiãúc thuưn khåíi hnh tỉì mäüt bãún säng A . Sau 5 giåì 20
phụt , mäüt ca nä chảy tỉì bãún A âøi theo v gàûp thuưn cạch bãún A :20 km. Hi
váûn täúc ca thuưn , biãút ràòng ca nä chảy nhanh hån thuưn 12 km mäüt giåì
Trang 2 -Âãư kiãím tra hc k II - Toạn 9
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Baỡi 3 : Cho nổợa õổồỡng troỡn õổồỡng kờnh AB vaỡ mọỹt õióứm M bỏỳt kyỡ trón nổợa
õổồỡng troỡn . Keớ tia tióỳp tuyóỳn Ax . Tia BM cừt tia Ax taỷi I .Tia phỏn giaùc cuớa goùc
IAM cừt nổợa õổồỡng troỡn taỷi E, cừt tia BM taỷi F . Tia BE cừt tia Ax taỷi H , cừt AM
taỷi K
a./ Chổùng minh : Tổù giaùc KEFM laỡ tổù giaùc nọỹi tióỳp
b./ Chổùng minh : IA2 = IM . IB

c./ Chổùng minh:Tổù giaùc AHFK laỡ hỗnh thoi
d./ Xaùc õởnh vở trờ cuớa õióứm M õóứ tổù giaùc AIFK nọỹi tióỳp õổồỹc trong õổồỡng
troỡn
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Trang 3- Âãö kiãøm tra hoüc kyì II - Toaïn 9
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Phỏửn 1 : Trừc nghióỷm
Trong caùc cỏu coù caùc lổỷa choỹn A , B , C , D chố khoanh troỡn vaỡo mọỹt chổợ in
hoa õổùng trổồùc cỏu traớ lồỡi õuùng
Cỏu 1 : Cho
A. 24

12
x
=
. Sọỳ x thờch hồỹp laỡ

20
100

B . 36

C. 60

D. - 60

270
Cỏu 2 :Kóỳt quaớ ruùt goỹn phỏn sọỳ
õóỳn tọỳi giaớn laỡ:
450
27
90
3
30
A.
B.
C.
D.
45
150
5
50
14
60
Cỏu 3 : Cho
.Dỏỳu thờch hồỹp ( < , > , = ) õióửn vaỡo ọ vuọng laỡ :
21

72

A. >

B.<

C. =

D. Khọng coù dỏỳu thờch hồỹp

A . -21

B . 11

C . -11

D . 21

11 2 1
= +
Cỏu 4 :Cho
. Giaù trở thờch hồỹp cuớa x laỡ
x 3 7
3 2 6
Cỏu 5 : Giaù trở cuớa bióứu thổùc ( + ) laỡ
5 7 21
2
12
A.
B.

C.0
5
21
3
Cỏu 6 : Vióỳt họựn sọỳ 5 dổồùi daỷng phỏn sọỳ ta õổồỹc:
4

D.

12
21


G
M
A.

4
23

B.

23
4

C.

23
3

5 1
l
6 2
6
C. −
10

D.

15
4

Cáu 7 : Kãút qu ca phẹp chia − :
A.
Cáu 8 :

10
6

B.

6
10

D. −

10
6

D. −

2
600

2
ca 120 l :
5

A . 24

B . 300

C . 48

Cáu 9: Bäø sung chäù thiãúu ( ... ) trong phạt biãøu sau:
Khi hai tia Ox , Oy khäng âäúi nhau, âiãøm M l âiãøm nàòm bãn trong
gọc xOy nãúu .............................................
Cáu 10 :Âiãưn chỉỵ säú vo dáúïu * âãø säú *35* chia hãút cho táút c cạc säú 2
, 3 , 5 , 6 , 9
Cáu 11 :Trãn cng mäüt nỉía màût phàóng båì chỉïa tia Ox, v tia Oz, Oy sao cho
xÄz = 28o , xÄy = 56o
a . Tia Oz cọ phi l tia phán giạc ca gọc xÄy khäng ?
b . V tia phán giạc Om ca gọc xÄz . Tênh säú âo gọc m

Pháưn 1 : Tràõc nghiãûm
Cáu 1: Phỉång trçnh no sau âáy l phỉång trçnh báûc nháút mäüt áøn:
A . 2x + 2y = 0

B.

3
−4=0
x

C . 0x + 7 = 0
1
5

Cáu 2 : Táûp nghiãûm ca phỉång trçnh ( x + ) ( x B. −

1
5

2
) = 0 l :
3

2
1 2
;−
D.
3
5 3
2x
x −1
+
Cáu 3 : Âiãưu kiãûn xạc âënh ca phỉång trçnh
l:
x − 3 3x − 2
2

2
2
A . x ≠ 3 hồûc x ≠
B. x≠3
C .x ≠
D . x ≠ 3 v x ≠
3
3
3

A.

1 2
− ;
5 3

1
2

D . − x+3= 0

C.

Cáu 4 : Phẹp biãún âäøi no sau âáy l âụng :
A . 0,5x < - 1,5 ⇔ x > 3 B . 0,5x < - 1,5 ⇔ x > -3
C . 0,5x < - 1,5 ⇔ x < -3 D . 0,5x < -1,5 ⇔ x < 3
Cáu 6 : Trong hçnh bãn . Biãút AC // BD , AB = 0,5 cm
0,5 B x
A
OA = 1cm , OC = 3 cm . Säú âo ca âoản thàóng CD trong O 1

3 C ? D y
Hçnh bãn l :
A . 1 cm
B . 2 cm
C. 1,5 cm
D . 2,5 cm
Cáu 7: Trong hçnh bãn ,cọ bao nhiãu càûp tam giạc âäưng
A
dảng våïi nhau biãút : QM // AC , PM // AB
Q
P


B
A . 1 cỷp
B . 2 cỷp
C . 3 cỷp
D . 4 cỷp
Cỏu 8 :Trong hỗnh bón, bióùt BI laỡ tia phỏn giaùc cuớa
BC
tam giaùc ABC. Tố sọỳ
laỡ :
AB
5
3
A.
B.
2
4

C.

2
5

D.

4
3

A 1,5

B

C
M
I

2
C

Phỏửn 2 : Tổỷ luỏỷn
Cỏu 1 : Mọỹt ọ tọ õi tổỡ ọng Hồùi luùc 7 giồỡ saùng dổỷ kióỳn õóỳn ọng Haỡ luùc 9 giồỡ 30
phuùt . Nhổng mọựi giồỡ ọ tọ õaợ õi chỏỷm hồn dổỷ kióỳn laỡ 10 km, nón maợi õóỳn 10 giồỡ 20
phuùt xe mồùi õóỳn ọng Haỡ . Tờnh quaớng õổồỡng ọửng Hồùi - ọng Haỡ
Cỏu 2 : Vồùi giaù trở naỡo cuớa x thỗ giaù trở cuớa phỏn thổùc
phỏn thổùc

5x 2
?

3

5 2x
lồùn hồn giaù trở cuớa
6

. Cỏu 3 :Cho tam giaùc ABC coù M laỡ trung õióứm cuớa caỷnh AC . Trón õoaỷn BM
lỏỳy õióứm D sao cho DM = 2BD . Keớ tia Bx // AC . Tia AD cừt BC ồớ K , cừt tia Bx
taỷi E
d. Chổùng minh tam giaùc BEK õọửng daỷng vồùi tam giaùc AKC
e. Tỗm tố sọỳ

BK
BC

f. So saùnh dióỷn tờch hai tam giaùc ABK vaỡ ABC