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70盥針對要求日本公司旗,尤其是遇七家公司
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1979 中學會考試題預習專欄
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地理
(+)
GEOGRAPHY (7)
Suggested answers:
DIFFERENCES IN TEMPERATURES. Although A and B are located at hearly the same latitude, temperatures are not the same. A has a summer temperature 21 C and winter 17°C, while B has Tower temperatures both in summer and winter, The warmer temperatures of A may be dua to the influence of sex/ which most probably corresponds Z, is located along the coast and can be influenced by ocean. effect. B. most probably corres- ponde I, which is farther in- terior, show some continental characteristice, has more ex-
treme temperatures.
DIFFERENCES IN RAINFALL PATTERN
A has abundant rainfall. which distributes quite evenly all the year because it is in- fluenced by the onshore SE. Trades. As there are rangen
lying of old fold mountains
Australia, A,
g located heir windward side! abundant relief rainfall brought by the tradea, rainfall is anch lower at B because it is on the leeward side, where the air is compressed and is therefore dry,
ADVANTAGES OF MIXED FARMING The diagram is an example of a mixed farm, kixed farming common feature in the
belt of Australia. Ід cent years, most of the farms here combine extensive wheat
rming with the growing of ther crops and the rearing
sheep, either for their
or their meat, Mixed ming is practised thers ase of the following reasons I'
1) In the farm, cultivated land is divided into paddocks up to 42 hectares in size, The paddocks are used for the growing of wheat and pastare, and some of them are left fallow. These are evidences
esting that crop rotation land rotation are most obably found there. Bota- ien is practised there in
der to 'check soil erosion. Soil exhausts easily under monoculture. If the same kind of crop is grown year after year on the same piece of land, after a certain per-- fod, the soil fertility will be deflected md the yield of the crop will become lover and lower. By the rotation of crop with regular fallow.
, soil fertility can period, be mtained and a higher wheat yield is possible.
(2) Since the soil is more fertile, pasture for sheep ans be improved,
3) The diversification of farmong practice can gaurantee and increase the income of the farmers as well. though there is a crop failure the loss incurred can be, compensated for by the sale
KTOR
八新
點的巴 三造仙
of wool.
b鯃船。指用去提比展黎逆菇九。卻船說,人據月一九敢建這點.
上耀造與仙:
管第三
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售額本入門是
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4) After harvesting the wheat, the stubbles can be utilized to feed the sheep.
5) The sheep grazing on the land produce waste products which are good fertilizers for the soil.
6) The work on the farm is spread evenly throughout the year since wheat is sown in late autumn and winter and harvested in summer, while shearing and lambing take place -in spring.
b. DIFFERENCES FROU AN AVERAGE
FARM IN HONG KONG
1) The mixed farm, with s total area of 275 hectares, much larger than the farms in Hong Kong. Many farms in Hong Kong are less than one -hectare.
日七的,
4
三期星 日二廿一十年八七九一曆公年七十六國民華中
府宣佈一項穩定計 1 交計畫給其工會要 (東京过)日本 川岛播通風工業公司
日謀重振造船業
CAMP-SERBE EAXRESENKE
計劃減少三成半
削減設備或暫停業四年
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Subject
Hemoglobin grams b
Normal Hypoxia
A
B C D
E
b. Account for such a distri
bution pattern.
12.
Below is a map showing the grazing ground of dairy cattle per 100 ml
blood). in New Zealand,
Describe the importance and 02 content characteristics of dairy farsing in New Zealand.
Account for its success.
Jon. That July 1512
Auckland
is
Hamilton
2) The land of the farn is diveded into paddocks in which a single type of crop is grown. In Hong Kong, several differ- ent types of crops can be found growing on a small plot of land:
3) Crop rotation and land rotation are practised there. Some land in left fallow for the mcovery of fertility.
In Hong Kong, except the aban- doned land, land belongs to a farmer is fully utilized. Usually the harvest of one crop is immediately followed
Sometimes fallow by another. land may be found, but is - only for amry short period of time.
4) The wheat grow on this farm is grown as a kind of commercial crop, while wool- of the sheep which fed on the pasture also enters interna- tional trade. Farming in. Hong Kong is mainly subsist- едсе. The products from an average farm in Hong Kong account for only a small percentage of local consump- tion.
5) The standard of living of the owner of this farm is high while in Hong Kong, the life of farmers is usually poor because the farms are too small to be worked at a profit. 6) This farm is highly mech- anized Wheat is harvested by combined harvester and wool sheared by electric shears, In Hong Kong, farns are too
call to be mechanized. Farx- ers keep huffaloes for pulling the ploughs
11
Juestions for Next Week:
ISOTHERMS OF A N. CINTINENT
HIGH
LATITUDE
OCEAN
LAND
OCEAN
Lov
·LATITUDE
Winter Isotherm: Summer Isotherm
Above is a generalized pattern of distribution for summer and winter isotherms as they may appear on a hypothetical continent in the Northern Hemisphere.
a. Describe the oharacteris- ties of äusser and winter temperatures as shown by the pattern.
Jan. 1722
Judy 29°C Titus MP- 1215 BUR
Wellington
[34] Main dairy farming area
Land over 300 m,
►Prevailing wing
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生物
BIOLOGY (7)
Unit Four: Transport Organisms
(t)
1. The following diagram shows
a general plan of blood circulation in mammals.
b)
Direction of blood-flow
Anterior
of arteriol blood(cc. 02 per 100 ml
blood)
O2 content
15
15
8. 16
15
19 15 9.5 20.
19
io
of venous
15
12 6.5 13
181
blood (c.c.: 02
per 100 ml blood)
Cardiac out- put(liters 5.0 6.67.03.0 per minute)
Which subject is suffering.
from a dietary iron deficiency?
Which subject is suffering from heart failure and poor. blood circulation?
c) which subject has recently
climbed a mountain, where the air is 'thin' and atmospheric oxygen low?
2) which subject is suffering
from a poison (e.g.cyanide). which prevents his cella from using oxygen?
Answer the following ques- tion by using the data of subject A from the table. (1) How many liters of
blood is flowing, through the lungs each minute 2 (2) How many c.c. of oxygen
are carried to the lungs each minute?
(3) Hoy, many c.c. of oxygen s
are carried away from the lungs each minute? (4) Using the answers of (2)
and (3), calculate the oxygen consumed each
minute.
3. The stem of a celery was
partly slit in half longi- tudinally, and treated as shown below.
.C
leaf A
LD
Posterior]
Explain why the blood in the circuit
(1) can flow constantly. (2) can flow in the right direction without back-flow.
(1) Name the chamber Y. (2) When chambery contracts, to which organ(s) is the blood in it sent to 2. (3) Explain why the wall of
chamber x is thicker than that of chamber Y.
c) What are the differences in
the composition of the blood in
(1) chamber X and chamber Y. (2) blood vessels A and B. (3) blood vessels C and D.
d) Rammo hormones which can
speed up the circulation.
e) What are the advantages of double circulation in man? (I intestine L: liver
K: kidney)
2. The term hypoxia usually refers to a condition in which the availability or utilization of oxygen is depressed. The data listed below illustrate four different types of hypoxia compared with the state of a 'normal' person breathing fresh room air. (It is assumed that the weight, sex and age of all subjects are the same.).
10% Naci solution
leaf B
A few drops of red ink +distilled
After 2 hours, leaf A wilted and leaf B became reddish. a) Explain the results for
(1) Leaf A and (2) leaf B. b) What can be concluded from
the facts that leaf A did not become reddish and leaf. B did not wilt?
c) If the base of the stem
was cut in air and the plant was then left on the table for 2 minutes, both leaf A and leaf B would wilt after the ex- periment. Suggest a possi- ble reason for this observation.
Answers:
1a)(1) The rhythmic pumping
action of the heart develops a blood pres sure to force the blood to flow constantly in the circuit. In rein, the flow is mainly due the the contraction of the skeletal muscles which compress the vein. (2) 1. because of the blood pressure produced by the heart
2. because of the pre-
sence of valves in the heart. and the veins
李跳了七僵迻蚣國武
ht ventri
b)(1) Right ventricle.
(2) To the lungs.
(3) The wall of chamber is
thicker because it has
to pump blood to all part of the body..
c)(1)X: oxygenated blood
Y: deoxygenated blood (2)A: rich in urea
B: rich in food materials
(3)C; oxygenated blood
rich in urea.
D: deoxygenated blood"
less urea
d) 1. adrenaline 2. thyroxine
e) The double circulatory
system contains two entire- ly separate pumping systems. 1. One pump is responsible for gas exchange with the environment, providing an efficient blood-refreshing system.
2. One pump is responsible
for gas exchange with the tissues, creating a high blood pressure so that the blood-flow can be faster and a higher. metabolism, can be main- tained.
2a) Subject c.
b) Subject D.
c) Subject B.
d) Subject E.
e) (1) 5 liters of blood is
flowing through the lungs each minute.
(2) Since the oxygen con-
tent of venous Blood: of subject A is 15. c.c. per 100 ml blood, and 5 liters of blood In flowing through the lungs each minute, so there are
(3)
100 ml
x 5000ml/min
7500.0.02/min
750 0.c. of oxygen were carried to the lungs each minute
19
700
0.0.02 x 5000ml/min
- 950c.c.02/min
950 c.c of oxygen were carried away from the lungs each minute.
(4) The amount of oxygen
consumed each minute: (950-750)c.c.=2000.c
5a) (1) Leaf A
10% NaCl solution, is
a more concentrated solution than the cell sap of plant cells. When the solution rose“ in the stem and entered leaf A, water in the mesophyll cells was being drawn out by osmosis. This caused the leaf to wilt.
(2) Lear B:"
The red ink solution rose in the stem and finally entered leaf B. This caused leaf B to become reddish.
b) There is little horizon- tal transport of solutes among the water-transport vessels.
c. The presence of an air- film at the base of the stem might prevent the solutions from entering the stem. Because of the continuous loss of water by transpiration and no further water supply, both the leaves. wilted.