1972-01-11 — Page 23

LIBRARY

JAN1972

育教儒華頁三第張大第 日至廿月一十年亥辛巳段

WAH KIU YAY PO

郭日橋華 Cy HALL

Y

二期星

1972英文中學會考試題預習專欄

curved surface

Volume

數學科 (十一)

There

For a sphere of radius r, arca

curved surface.

Mathematics

(Lesson 11/

Solution to exercise. Ju

Suppose that my original capital

is. $100.

Then

of my capital becomes

103:

1:00

$100 $341

of my capital becomes

100

$100

$192

the rest of my capital becomes

100%

$100

1849-

19-1 $10

The total sum of my capital

8341-

Increase of my capita,

% increase on the whole

100%

$100

(2) Coat price of ink

per pint

Cost price of Ink

* per bottle

Selling price of ink

30.5

1005

90.5

40%

Let the original price be $100 per article for articles

volume =

tio of area of two similar fagures

Ratio of volume two similar solid

Example (1)

cylinder, diameter o on and d depth 8 cm is full of water. If this water is poured into an empty cylinder of diameter 4 cm., find the depth or the water.

Solution:

Than

Let non be the depth

Hence the depth of water in the 2

cvlinder is 18cm

Example 2

What length of wood 4 om wine and on thick is used in making a clo03d

rectangular chest whoga external measu- rements are 63 ca by 524 cm by 44 cm, making no allousnce for wasteage.

Solutions

The external measuremen

524 cm and 44 cm.

Original receipts,

$100x

new price per article

x $100

100

and (44

(520

1912英文中學會考試題預習專欄

堅道藥

英文科

(1-)

snglish Languaze (11

Answer Co Issue 1)

(D) is the correct answer

The difference between remember + Gerund and remem- ber+ Infinitive is that:

Remember Gerund' refers to an action which took place before the act of remembering - John remembered something. He saw Mary in her aunt'an.. house last year.

John remembered seeing Mary in her aunt's house last year

Remember + Infinitive retarg to an action which has not yet. taken place

Remember to see Auntie Judy when you go to Kowloon, She is longing to see you.. Other Examples:

I forget to write him a letter. (The act of 'writing' -- has

not yet taken place.)

I can never forget meeting her in that silvery moonlight.

The act of meeting the lady

had taken place already. }

(D) is the correct answer: (Exp nation

see No.3).

(E) is the correct answer,

There are différent ways" that we can use to rewrite eer- tences with neither, minori The following are some of the examples:

Neither Peter nor Jon would be able to go.

Peter would not be able to go

would Johm.

are 3 cm

Peter would not be able and John wouldn't be 80 either.

go

to:

The internal meausromento ar

(63 - x 2) cm,

x 2) on

x 2) cm i.c. 61 cm, 51om,

New receipts = (385)

xx

100

Volume of wood need

(63 x 52*

(61 x 51 x

145530 0. -1333012

12220..

$459

100%

ohanzo.

X 100%

31002

(120785c2)

The area of the cross- Wood

on of the

on.

wood required

122282

Example 3

Elementary menaun

The TOLLUNLAY SEO funderental formulas;

Aroa of ▲ - 1 x (bace) x (height)

(D) is the correct answer.

"Everyone should have lett an nour ago. is a Supposition which is against the fact. (The young man was still there? The correct tense to be used

should/would/could etc.

Past Participle"

have

If you are expected to finish your work in time, and later you are found still with your work unfinished, your teacher will say: You should heve finished (a supposition contrary to facts) your work long ago.

(D) is the correct answer. it is a conditional sentence.

Explanation -- See (iii) (f),, Issue 5)

C) is the correct ensy

—十月一年二七九一醫公年一十六國 民華中

The word scolded, in this

case, is upcd as an Objective Complement Note that an

Objective Couplement can some times be in the form of a Pre- sent Participle:

What a surprise we have when we find our little dog chasing the bull.

What a surprise we have when we find our little dog chased by the bull.

The difference between (i) end (11) is that in (1): Chasing

Voices

denoting active

The dog and the action

chasing.

In (11),

Chased denoting 'passive' voice

The dog being chased.

Fesides, an Infinitive cau also be used as an Objective Complement, for example: 'Peter always made my sister

It is obvious that we need to add something to the sent ence to make its meaning comp- lete. In another word, we need a complement such as. Feter always made my sister

ury

Cry.

a) Infinitive, with 'to'

ommitted;

) Used as a complement

because it helps to complete the meaning of this sentence; It is en Objective Complement because it tells something about. the object.

- Used also ao au mujou

tive, because it tells Something more about. the Noun 'sister."

uther examples:

Don't make him angry. (Adj ctive, used as an Objective Complement.)

Let me go.

Have you ever heard nam singi We found a boy lying on the road..

(E) is right. (Correction: She is said··

should

She was said........ ()

It will be easy to underst- and if we split the sentence into twos

She had once been raun. was said by someone. Other

examples:

He had lifted up 500 pounds with one single arm. This was said: by someone.

It was said that he had lifted up 500 pounds with one single arm. OR:

He was said to have lifted up 500). pounds with one single am.

8. (C) is ri

Imarin

naving, shoving, or

being full of imag-

ination;

Only amaginative.

writers can write

such wonderful

stories

未完轉入第四張第三頁)

If the surface or an expansible sphere increases by 21%, find the %

increase in (1) its diameter.

Area

Area of annulus

circle affr

•TT (R2

77(R + 1)(R

% incre

in diameter

The increased volun

its volume

Solution:

uraa of //gram

Volume of prism

Volume of pyramid

base x height

Dase Sres I height,

For a circular cylinder height h area of curved surface

Let r be the radius of the

Then the increased &rel=

1000

increase in volume

41

100

x base areax

• 47x (-175) 2

1000

10

height,

The in-creased radium - )

10

radius.

and

% increase in radius

(112

1 x

100%

VOLE

For a circular core of radius r, height

and slant height,

33.1%

100%

Exercise 11

(1) The length of the arc of a sector.

of a circle of radius 5 cm is 18 om If the sector le folded to fore the curved surface of a cone (without overlapping), find (

(1) the base radius oz the cone 11) the area of the curved surface

of the cone

(1) the height of the cone.

8 pipe of, raqiús mak

Crows at 5517/E90. Through

How many "14" nours will it take to fill a tank of length 40 ft., breadth 30 ft., and height 8 if the pipe ra-,

maing full?)

Find the diameter of a circle whose area is equal to the sum of the areas of 3 circles of 3 4 cm and 12 cm. respectively.