1972-11-02 — Page 20

報日僑茶

頂四第張五第日七廿月九年子壬夏

11978

WAH KIU YAT PO

中文中學會考試題預習專欄

NOASE PENIA

2

終此,少文編

*COYAZIN * -

TERPRISE VE

FILE

KORKKERE

E

數學科(二)

·張正邦。

..

第一次預習題解答,

分解下列各式!

1. |2x2-11x-5

||4) 12x=11x-5= (32+1)(4X−5)

2. 15x2+22X-48

(A) 15x2+22X−48=(3X+8)(5X−6)

x2+4x2-5%

(解) 用綜合除法

+5+5

+2 +3 +0

EXTRMS -

四期星

日二月一十年二七九一曆公年一十六國民中 育教僑華:

香港婦女分科學校 祝八週年紀念

攜浼別」,「豪金給您。 作時表演,配合「 ACEREYANC

BRUSIMA! E

畢業典禮盛况

EKE-2

七百餘人

蘇耀祖專民主 畢業生

TANZA KUSIK 會中,有分书望時整数,

宿祧裙女分科奉析本基錢科及服装計科

GEN

F1倪3

BR.ZGUYEN

LASER

年,

HELT N

體於下午二

1913英文中學會考試題預習專欄

(x2-4x+3=(x-1)2 (x2+2x+3) 1973*+*

三角恒等式!!

+5 +5 +C

例

誠証

1+ Sing

證)左端:

+sund +

-Sing

| x2+4x-5=(x−1)(x2+5x+5)

14 x2+64

(14) X^+64 = X*+16x +64 −16x2

X4+2 X2 8+8?

·· = (x2+8)2 - (4x)2

16232

= (x2+8+4X )( X2+8~41)

(x2+4x+8)(X2-4x+8)

5. 4x4 -12x+29x2-30x+25 (B) 4Xa — 12x2+2922-30x+25 = (4x4 - 12x2 +9x2) + (2012−30x)+25 (2X-3X)2+ 10 (222 3x)+ 52 (2x2 - 3 × + 5)3

6 (x2+3x+9)(x2+3X−2) +30

(HP) (x2+3x+9)(x2+3X−2) +30

|= (x2+31) — 2 (x2+3x)+9(x2+3x)

-18 +30 ·

• (x2+32)2+7(x2+3x)+12 (x2+3x+3)(x2+3x+4)

7 abx2+(a2+b2)x+ab' 'A}) ab x2+(a2+b)x+ab (ax+b) (bx +α) 】

a

+ax

18 x2+2x4-84*+2x+147-31

(x) x2+2xy - By2+2x+14y-3

(X +48 + l )(x−2y + k)

= x2+2x4-842 +(k+1)x+(-2l.

+4k) y + lk

色等式中的對應係數相等

jk+1=2|

-2l+4k=14-

4x (3)1 lk − −1 × 3 = -3

故k=3,2=-1為此联立方程之解

x2+2xy -842+2x+14y-3

= (X+47 − 1 ) ( X −24 +3),

9 4x3-3x-1

(解)用綜合除法

40-3-1 E

4-2-2 +0 | 1

4 +2

4x3-3x-1=(x+3)(X−1)(4x+2)

(2x+1)(8~1)(2141) =(1−1)(2x+1)}

10. X-4x+3

(解)用綜合除法

11+0+0=473, LL

+

+2+3

-smo)(1 + sing)

2 sec o`

Cate 左 = 右。

18]= 3x3 (HCT A - Csc A) (I + tam A

+ LeCA)

(諧)左端(160

(8) £35 = (1 + CA - SA? (! OU

SMA

SWA + COA)

COA

(SMA + COSA - 1)(WA+SMA+1) SMA COA

(SmA + CosB) =1

SMACOA

SMACOA

SM A COA)

試證

Coco - Coto

cace + Coto

1+25mA CSSA -T

SMAGDA

左右.

Smo SmA

(3)と題将透同時瀋算化成同一般

「左邊 =

Sun B - 1 + Cose

Sme(1-6050)

(me (1-(0)

Smo (1-Coso)

= Cote

右邊=smk

cace + Co

me

Sme (i+wo) --Smo

+smet Smelit Gre)

Coo( câ+1)

Sme (1+ (0) Sma (I+ (050)

= Cre 左三石 Sine

試證下列各恆等式,

第二次領問題

tan

tanx

•1+ 25 mx CoX

Cos2x-5m2x

2. (Co2A-1) tan A+ dec2A = (Cm2A}

+ Cot-A) tan A

3. (Cot 20 - Cot (+1)( tano + tamo + 1)

tan-0 + Cot 20.

25m8 000 – coo

1- Simo + Sun 0

Sm3 Atco A Sim A- an A SMA + COA

tane

I + tano

7. Sime

堅道英文書院主編

生物科(二)

(Biology) (2)|

Questions for this week'

1. Multiple choice questions?

All living organisms are typically composed of a viscous substance termed (A) nucleus,

(B) protein (C) protoplasm

cytoplasm (E) tissue.

2. Which one of the following life processes is essential for the survival of the species of a living organism? (A) growth. (B) respiration (C) feeding

(D)

) reproduction (E) irritability

The process by which food stuffs are converted into heat and energy is (A) oxidation (B) mastication TC) digestion (D) secretion

(E) excretion

4. A group of cells having a similar structure and working together to perform a special function is known as (A) organ

(B) tissue (C) organism

(D) protoplasm (E) body

5. The process by which some digested food materials are converted into protoplasm is known as (A) oxidation (B) protein

synthesis (C) photosynthessis (D) assimilation (E) nutrition 6, plant and animal cells are alike in having (A) cellulose. walls (B) nuclei (C) large vacuoles

(D) chloroplasts.

vacuoles

7. Cells that fuse one another in the process of sexual reproductior are called (A) spores (B) sperms (C) eggs (D) zygotes (E) gemetes. 3. The simplest green plants are algae (B) bacteria (C) fungi yeasts (E) viruses

. The plant cells are normally surrounded by cell walls composed of a substance called (A) chloro- phyll (B) protein (C) cellulose (D) protoplasm (E) chloroplast 10. Plants may be distinguished from animals by the fact that plant cells contain (A) contracti vacuoles (B) nuclei (0) cytoplasms (D) proteins (B) chlorophyll

1.1. The body of an amoeba has no definite shape because its shape: changes when the animal pushes out and withdraws (A) contractile. vacuoles (B) food vacuoles

(C) pseudopodia D) ectoplasm

20oplasm

(E)

The protoplasm of an amoeba ia divided into.

(A) nucleus and cytoplasm (B) ectoplasm and endoplasm (C) protoplasmic membrane and

nucleus

D) pseudopodia and cytoplasm! cytoplasm and membrance of plasma

The main function of the contractile vacuole in an amoeba

is to regulate the

A

sugar content

B) soluble oxygen

liquid waste products (D) water (E) food content of

its

14. A type of asexual reproduc found in an amoeba

(A) binary fission

multiple fission)

-2658-1/

25 m230

= Lane

2630

1+ SmA CO A

(B

9 Coc A-cot A

1-SMA

11- COA

(C) fragmentation.

regeneration. (E) budding

15. Amoeba is considered as a protozoan because.

(A) it expels surplus water to the

outside by vacuole

a contractile,

(B

it is a one-celled animal (c) it moves by the help

of f

pseudopodia

In it feeds on micro-organi sos

in

in water.

E) It has an irregular shaped

body

16. All animals without backbones are classified as

(A) protozoa - (B) coelenterata

Protizea (B) Covertebrates (E) vertebrates

17.

The mode of nutrition in an

amoeba is known as

(A) holophytic (B) holozolc (C) autotrophic (0) parasitic (E) saprophytic

18. Which of the following are responsible for the feeding and locomotion of an amoebe?.

(A) contre le vucliples

B

pseudopodia tentacles.

(D) cilia

(E) flagella

19. An amoeba obtain oxygen, an gets rid of carbon dioxide by neans of

A) evaporation B) absorption (C) Osmcáis

transpiration

E) Diffusion

20. The digestion of food amoeba takes place it

(A) mouth cavity

(B) Contractile vacuole

(C) Food vacuole.

(D) Cytoplasm (E) pseudopodium

21. Which one of the following not true for an amoeba?

(A) Unicellular animal. (B) possession of a coelom (C) feeds and moves by the helps

of pseudopodia

(D) produces asexually

(E) forms cyst under unfavourable

conditions.

22. Spirogyra is a multicellular, filamentous alga. The nutrition in Spirogyra is known as (A) holophytic

holozoic

(C) parasitic (D) saprophytic, (E) autotrophic

23. Which one of the following is not about a spirogyra?

(A) green plant

(B) found in fresh-water pond (C) carries out sexual reproduct-

Ton by means of conjugation (D) feeds on the water weeds and

vegetation in water ..

(E) possession of one or TWO

spiral shaped chloroplasts

pyrenoids

242

fat globules. vacuoles of food

4) contractile vacuoles (5) undigested sand particles Which one of the above can be. found in the chloroplast of Spirogyra?

(A)1

(B) 2 (c)

(D) 41

(E) 5.

25. Which of the following is not concerned with the process of respiration in a living organism? (A) oxidation of food

(B) taking in oxygen

(C) giving out carbon dioxide (D) Liberation of light energy (E) Using respiratory structur

or organ

II. What are the seven characte

istics of a living organism? Using amoeba and spirogyra as examples, illustrate the similarities and difference of plants and animals in their modes of nutrition an reproduction.m

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RARY

NOV 1972