GRARY
C4
-<) (a−b) ・・・ ((-a)(b−c)
· Q4 {b-c) + b2 ((-a)+("(a-6)
(a−b)(b−c)(c-a).
2 (bài bạc aced al
(1)Y 3 (3 −3 ) + 3 x ( 3-x)+xy (x−8) 1310035 a-b, ŏ-cc-a
為分子的因式,由此得
報日僑畢
B FU
B-*3=BY WAH KIU YAT PO
四期星 日五廿月二年一七九一曆公年十六國民華中 眘教僑華
1971 中學入學試試題預習專欄
Leep slept
00
quietly.
中文中學會考試題預習專欄
智慧出版社主編
(91) R£= − (a+b)(Ca)
has got
Q. had got
數學科(八) 張正邦
Joe R. geta
his ticket before he went
英文科
(十八)
S.. got
T. mill get.
ANSWERS TO PREVIOUS EXERCISES
第十七次預習題解答 析下列諸式的因式,
to the cinema.
Dick played with his friends after
SECTION
2.D
4.D 5.C
P. had done
Q has done
9. P
10.C
000
does
His work.
ほーるーメ皆為比較的因 式,故設
SECTION
BID
purple
20 turn
will do
00
when
5. foeda
III. 1. How 2. Where
5. HOW
SECTION
the sun R. #11
They got to the Peak early and notched
P. 13 rising.. was rising.
rise.
rises. Trise
000
00
(multiple choice)
noose the best answer by arazin
the right box,
Example: If Tom's parents sent him to
Qlives
with live
ure line across
P. live
B C
R. lived
A. shall be..
000
B. should be
am living
D. would be
90
E, can be
too glad.
study abroad, he C. will be
A. rains
B. is raining
usually C. has rained.
D. bad rained
E. will rain
A
listened
000
SECTION
000
house
10:
Change the following sentences Late questions. Je
Example There s
fish in the bowl
Is there a fish in the boil?
A. B.C
an, summer.
மர்
Ers. Chung has to
B. Listen
2. Keep quiets We C. were listening to the
B. are listening
shall listen
A, picked
music.
B. pick
Don't let anyone C, picks the owers!
D. will pick
E has picked
Before the policemen came the robbers
escape...
escaped.
C. are escaping.
D; have escaped.
5. had escaped
do not see
B. will not see
The two friends C. have not seen-
D. had not seen
E are not seeing
for a long time.
B. C
pann every dayu
lay with him
2. Jim wanted someone, to
3. She ought to work harder.
Pong never snckes.
DE
00
They
ent a
day in Lantį
A B C
00
A B C
000
DE
00
R
IT). The roowing conversation needs punë tue tɔ on.
Fut in capital letters and trie mark's
ave you seen Jack asked david
cessary. une fuati ori
yes ive just seen him at the anems he wanted to meet me at sever oclock
Its already twenty past hes forgotten
a^(b−c)+b2(C-a)+("(a−b)
(a−b) (bc)(c_a) [k(Q_^~+b2+ c2) +ecab+ bc+ca)].
4 3 (4-3) + 3X(Z÷×) + XY(x-4) BX a-o bu
= k(X−4)(4−}){} −X)--(1)
ak X=0, 1=1; 7-21AU
~^1}. 2(-1)+0+0=k(-1)F-1) (2)
*2 Yz (y-3)+3x(J−x)+xy(x~y:
· (2) x (y-3) + y () - x)+3(x-4)3 ##} } x=y y=8 }=x @3.
EL EI AO BYU-Y)(4-3):
(子)能除靈此函數又因 此函數為輪換對稱及發
得
-14=10k+
26 0=0, 6-1, (=3
23 -13=10k+ 30. [0) (2) Mi 43. -
k=-1 l=-1. $$ Q^(6-c)+6" ((-a) + ("(Q-6)
-(a−b) (b−c) (C-a) (a=+b2 +c+ab+bc+ca),
#
~(Q-b)(b−c)(C~a)Q+b+c+a6tbetes
(a+b)(b-cx(-a)
#NBA**=*= x^3 = a2+b2+c2+ab+bc + ca
X(Y-8) + "(8 - x)+7(x-5)2. = k(x-4)(8-8)(8÷x) (x + y + z)
xx x=0, y=1, z=2^^£3
· 04 2+2(-1)
= k(-1)(−1)(2)(0+1+2)
3X X(4-8)2+Y(8—X) + 3(x-4)
(x-4)(y-3)(8~x) (x+x+3)
· (3) x4(y2-3?)+y" (12x2)-+}" (x2u?) (m2) @ x=±y = y=+8 D
=±X時此函數為口,故
(x+4)(x=Y)(y+D)(1=3)(1+X) (3-X) ME PALL˃ 由此得
x^(y2-j2)+Y*(3-x2)+z" (x2 63)
= k(x+y) {x+y)[~ +8)(y-3)(3+x)(3−x)
3£ X=0 Y=1, z=2\
(E) 11, 12 (a-6)(a-c)(x− a)
+(b−c)(b-a)(x~b) * ((-a)(c+b)(X-9 (4)
(a-b)(c-_a)(x-4) (b−c){a-b)(x-b) (-a)(b-c)(8-9)
_!_a`(b−c)(x−6)(X-C) -b2(6-4)|| (X-a)(x−c)~c^(a−b) (x− a)(x-6)
(Q-b)[b−()(C=a](x_a} (X=b) (X=C)
-a^(b−c)(x−b}(x−c) − b (c-4} (X~a)(x~c)~c2(a=b)(X~a)(X-b) HELA (a−b)(b=c)((-a)MI, **1
- Q2(b−c)(x−b)(x−c)-b((-a) (x=a)(x−c) = (2 (Q-b) (X~ α) (x-6)= k(Q-b)(b−c)(c-a)
40+(4)+16(1)=k(1)(-1)(3) ER Q=0, 6=1, (=24}
(-1)(2)(2),
· 5x x 4 (y = z 2)+y4[z2x2)
+3=(x2y2)=-(x+3)(x-4)
(4+3)(4−3)(3+x)(3−×)
3=-X 11 & Bo
(X+4)(Y+b) (8 + X) at ZON 13 (X+4+8) - X=-q=r
= k(x+y)(Y+z]{} +X}
1-2 0=R 3=X 48
17 (2+0+1) −2-0
-k(2)(1)(3)
k=3.
tx (X+Y+Z)2 = x2 y = gs
3 (X + Y)(Y+Z) (3+X)
泰式二
k = x2
(X~a)(x−b)(x-3
第十八次預習題
U HAR EM 14 X2+ --20X+6可用X-3整除,
(2)株式定理定lm
152x_x2 + ex+ m
(X+2)(X−4) † 1
3) キえて三次整
敦メニュ
3時,函數之值為0當x=0
P割, ☀ x= -1 °f 函數之值為12:
化下列各題為簡單分填分式:
t
x2+2x+3
(X=1)(X-2) (X-3)
15)
6¢
··(b−c)(b-a)
(6)
+x+3
P. sleeps
Q. sleeping
aman made the baby R. will sleep.
000
1971 英文中學會考試題預習專欄
新光出版社主編 SUNLIGHT PRESS"
化墨科
(TO)
CHEMISTRY
LESSON EIGHTEEN
24-2-1971
ANSWERS. TO EXERCISE 16
(162)
161) D 166) Q (167)
EXERCISE 17
(164) A (165) E
(169) T (170) - T
(171) Con-sulphuric acid can remove water or elements of
water from many compounds. These reactions are called
reactions and the acid is therefore a
A element
agent
B.
dehydrating action
D. hydrating agent
E. hydrating action
cannot be used?
(172) Chlorine can be prepared by
A. Using potassium permanganate
(177
B. Using bleaching powder
Which of the above are pro erties of chlorina?
(a), (b) and (c) only
(a), (b) and (d) only (a), (b) and (e) only
D. (a), (c) and (d) only
All of them.
The bleaching action of chlorin
B.
hypochlorous acid
hydrochloric acid
C. hydrocarbon
D. its greenish-yellow colour
E none of Ato D.
(175) burning sodium or magnesium will continue to burn
into chlorine, forming (X) fuses of the chlorides.
2Na + C1
or Mg + Cl
Where (X) is
(A) green in colour
2NaCl
M8C12
B. greenish-yellow in colour
yellow in colour-
D. dark-yellow in colour
E. white
(176) (X) ferrous chloride is oxidized to the (1) ferric salt
into chlorine, Where the colours
P. (X) White; (Y) - yellow
yellow; (Y) green
white (Y) green
r, (X) = pale-green:
green
following. Which one
Q (X)
R. (X)
5.
(X) - green;"" (X)
(177) (a) Cu + Cl2
CuCl
(b) P
PC12
(c) 2P + 3012
2PC13
(d), 20 + 5012
2PC15
2012
2SC12
2-503
ZHC
D.
Using manganese dioxide.
Using magnesium
E. By electrolysis (either use hydrochloric acid, or
sodium chloride solution).
(a) Chlorine is a greenish-yellow gas.
(b) It has a choking snell.
(c) It turns blue litmus red and then bleaches it.
(d) It supports combustion.
(e) 25+
(e) Its V.D. 17.5
Which of the above are not corre
(a) and (b) only.
(b) and (d) only.
R. (b) and (e) only
5. (c) and (f) only
T. (d) and (e) only
(178) (a) 6KOH + 3012
(b) Ca(OH), + C1
(c) CaOCl2 + 002
(d) 2NaOH + Cl2
5KC1 + KC10 + 3H
H2O + Ca0C12 C1+ Caco
NaCl + 2H20
Which of the above of the action of Chlorine on alkalis
is or are not correct? P. (a) only
(179) (a) Fe + 2HC1
(b) 2A1 + 3012
(@) 2A1 + 2HC13
(4) Pb(NO)2 + 2HC1
(b) only
R. (c) only
and (b) only
FeCl2
2A1C13 AIC13
H.
Which one of the above reactions is incorrect?
(a) only
S. (d) only
(180) Chlorine can be used
Q. (b) only
T. none
(a) as a bleaching agent
(C)only
(b) as a germicide to kill cholera, typhoid germs
(c) as a disinfectant
(d) in fire extinguishers
(e) for removing grease from clothes.
Which of the above are not correct?:
P. (a), (b) and (c) only
(a) and (b) only
R. (b) and (c) only S. (c) and (d) only T. (d) and (c) only
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