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Geography (13)
floor price
after natural
1991 中學會考預習專綫
[P.-F. Chan-
„MIEL, & DALE-PRESS
extensive farms
Cultural environment
(a) low population
density and
labour supply
small
population pressure..
Tow Fand value.
sina 11 labour
high level of mechanization: available". surplus
export-oriented commercial..
supply
'Small "local
domand
farmiy
Lenough capitej
find the Southeast and
(b) capital
Southwest
Australia
(c) market
Farge overseas market
great
Fluctuation of price and demand
(d) transport
improvement on transport such. as large, carrier int refrigeration
(e) technology
high level of Farming technology
sheep, hearing
provices-extra income.
sheep rearing Land: wheat
growing: for stabilizing their incomes
large-scale. export. 15 possible.
high technology
input
Scientific
farming sethods
rotatiune grazing
mant encourage
Strong
export
Competitive
improved
ability in the..
infrastructure
international.
guaranteed
market
emergency furd.
disasters in 1980
Advantages of mixed farming (1), Supplementary effects
of monoculture
stable income -dangers reduced.
01 Complementary effects
effective use of land efficient use of labour.
supply of fadder crops from wheat. stubble
supply of fertilizers from sheep. droppings or dung
ley farming.
Overcoming Constraints on farming
Introduction
they are limiting factors that hinder the practice of farming and the increase in yield.
environmental
constraints:
flooding,
soil erosion, landslides, "unreliable rainfal
drought,
hilly ground,: marshy ground,
salty soil,
Steep slopes.
economic constrain
sufficient cap
Lacost
mpetition.
and
physical
in the prices of farm
technological constraints:
tack of appropriate technology or information.
social and political constraints: Inefficient landownership system, urbanization;"
Fand tenure,
communes,
cooperatives
governmental organizations
size of labour pool,
population density.
individual's ability,
personal constraints:
individual's perception.
(A) Constraints on farming in Hong Kong
Constraints
(a) Climate
uneven..
distribution
of ra rifal, dry winter and
"wet summer
flooding in summer
strong wind and heavy rain infrequently
low pressure
(b) Labour
shortage of labour: higher labour easts
(t) Soil
Shortage land. for farming
because of
urban expansion
competition
from goods
Imported
Pests and diseases
reduction in yield
{f} Capital
-Shortage of
capital
Measures to
overcome. constraints
sprinkler irrigation water tanks
planting trees, construction of ditches agricultural
loans. installing
nyfor-and- plastic covers
small-scale mechanization growing crops with higher return
adding lime. [chemica)
fertili
affores
terracing:
specializing in crops, which have large. local demand
pesticidies
low interest loans aid from VMD
cooperatives
(g) Technology
traditional methods of farming
low yield
species of crop
(B). in South China
(a) Climate
floudinc typhoon dry winter.
(b) Land
yrgat population .pressure
small-sized fields
(c) koliet
steep, hilly relief
(d) Technology.
runal illiteracy little -improvement
in farm production
training, and advice, vesearch
Entroduction of
~Short
stalked. varictles of: Berap
irrigation
system
2. Xiang.
use new hybris. Price
manual power. with small- scale machinery.
terrace fu
research carffed but the central. government. experimental farm
(C) In Southeast Australia (al L:
arteria wel drought-
resistant crops
Snowy Mountain. Schemes
contour.
erosion
(b) Spil
décline in soid fertility
Targe-scale (mechanization
mixed farming.
(c) Labour.
shortage of
labour
high Idbour
wages
(d) Market
- far away from world markets
High transport cost
fluctuation in price and competition
refrigeration
of mutton and
use of bulk. Carriers
- guaranteed.
price
Manufacturing Activities (A) Manufacturing system.
Inputs Fostorials
Power Baboue supply feclinulogy
Thoragemant
Can't
production of high quality crops are woni
Process Manufacturing Process Crocessing)|
Cutouts positivo netputs -market BB
produk
or
tabrlasting)
regatio
outputs
-waste
products
-pollution
(8) Types of manufacturing industry.
processing industry which involves changes.bat! the physical form thmical state of
arid
materials.
raw
e.g. From and steal industry. Fabricating industry which involvės only changes in the physical form of raw materials.
e.g. bar and ship industry.
TC) Locational factors
the
most ideal location is the Teast-cost location.
any decision-makes consider many factors as follows
Physical
factors and supply sources of: Draw materia
power resources
Parulho turer decision- making an
Industrial locátlan
duman and
ecanowite factors
Labour supplyi transport
cos
tron sport factiitles market government ared
Institutions historical factor agyon atlan ecocomiss
華僑文化
La
歷代文物萃珍·香港藝術館 泰樂藝社蕃畫团、香港大會堂八撐。 3香港畫家聯會作品展:香港文化中心。
<香港偶拾];香港藝術中心
RE
的高回色者人。派出了近百名的代表及及
·國家(地區)四十六家中文智、社 隆波開幕,出席這次盛离的來自世界十弱 幻世界中文茲業協會近日在馬來西亞 百左右有嘉安椹果一堂,是歷程以来规模
·湖博馬來西亞首相、郡長、上議院
反求己 說絕對新聞從業者本身一種壓力。不能不 昨,衝擊而作出深入分析、中行报道,可
理,分析和撰寫的努力,人們也不能接近 沒有新聞從業醤戶與繼夜地去發、整
·新、電腦多靂、行星微波導遞多費,若 世界資訊:不,不論新聞魇界
·事實的具机 - 去理解多元科展的社會生活
·若唐豐是靳健行系 面神的挑戰
**** ESCE
北大荒版畫展:商務聞中心 盛唐午年藏进典,香港藝苑中心勳
B.EDENU
、馬首相隔一
咍违醫生在年
金開幕儀式上一
筆比劍利
湖北出士戰國漆底中文大學文
難忘的演說 I
以「比利」的尘禧地印在資訊時代析, ——是次世界中文報協童年會所感
華者圍繞著每天緊張娶忙的事務,能夠自
€
遇強中手・猴王難敵如來掌
太方
身世成謎・悟空出處未有方 五指山下終屈服。護唐僧正果修成 冥頑不靈馬騮精·擾鬧天宮稱大聖
指頑
終馬
連天上玉皇大帝都白他三分,磐大的发 「」、「夜·正是孫悟空表到唐僧以前的事,而他得到 領濠倒好,對癌狀被封為「漢作品街」的「一個小學生發現第二、三、四枚郵票上絲格 超姝攝值空的形象,既有殊少點的成分,
·空穿虎皮裙的園棗不正輩,遠是因爲移 有铪奴曼的成分,是「使血猴」,一 “可是,在一九八〇年鄭州呼! 第三種是「混血說」,費國梁和林兵都
許多歴史資料證明,孫悟空战局的学养
建郵票展?
1991 中學會考預習專業
明德出版社
MİLL & DALE PRESS
Mathematics (12)
Exercise 12 Variation
Section A
M. K. Ea
1. If yx, and y=50 when x-24; find
the value of y when x-32,
The
An object falls from rest. distance y metres travelled in time
t seconds is given by the following. table.
101-40 90 160|2501360
(a) Plot the graph of s against.t.
(b) Find the relation between's and t.
(c) find the time required to travel
5000 metras.
3. If varies directly as y and Inversely as z3, and xl when ya-1; Z-2, what is the value of x when y 3 and 7-1,.
A quantity x varies partly as y
and partly inversely as z. If x=16] when y 2 and 2-1, and if 5 when, yet and 2-2; find the value of when yx/3 and 2×4,
If xxy, prove that [x-yexy.
8..
As shown in.
(a) state the lat
(b) Find F, if a#1.2.*
when y
and
RIES
k(5)
1..bl
(Ans.)
When a 1,2
1.6F
(Ans.)
Ky
constant
(a) From the graph
PUBLIC LIBR
-(-x
inear and
9. As shown in the figura
through (0, 0), thus
(a) Find
the 13% of variation (relation) betwem y and x. (b) Find y if x=2,7.
· ·
10. Given that i varies directly as y
and y varies directly as 2",
(a) Prove that (x+y) varies directly as
(b) if x 15 increased by 44%, find the
percentage change in zi
is a constant,
when:
= 0, y
5 = m(0)
5
lope of the graph
Section B
(b) f
From the table, when 10,
6. Let the daily cost be $x:
number of students be y."
the
10 (1)
are
10
constants.
S'n 16t2
(c)
5000 kt 100
:321 =
471
.500 22.365
(Ans.)
(2): -(1) .150.
y and xe
Substitute
6 into (1)
60063
where k is a constant
Since x1 when ya-1 and -2.
When y=3 and zw=1
(Ans.)
where k and
nd 2 constants.
by
* 21 + 6(120)
741
(Ane)
The cost is $241,
Let the total cost be $P, the speed
kmb
·68 = *:
• kylki s
**y* 2' since käik, is a constant.
(b) Lat the initial value of x-be
the final value of x 15.
TOO?
Let the initial value of be the final valua of be
,94%, = k(7q)? ++x•• (2)
Section B
The daily cost of running a summer caup for students 13 partly constant and partly proportional to the number of students. If the daily cost for 50 students 1 $321. and that for 75 students is $473, what would be the daily cost for
120 students.
The pasic cost of running a cable. car is x dollars per hour whether it is moving or not, but when it is moving the additional cost varias at the cube of its speed, If the total cost per hour 16 $66 when the speed is 2 km/h, and $770 when the speed is 5 km/h, find the value of
"Solutions to exercise 12
=
X
65.67
(A05)
whare
X
and k2 are constants. Putting x=16, y=2 and. z=1 into (1).
770 = x (
(2) - (1)
han y
xx where x is a constant 60, x = 24
702 117k
+
6
50 = k(24)
· Put k = 6 into. (1)
685 × 6:2
Putting x-5, y=1 and z=2 into (1)
x= 20
(Ans
1.2
Fran the graph
10 = 2kg * From (2) and (3)
Lat gak?
•pha
From the green,
sed by:
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