情如下: 「中學,人數每次約三,動青年將會及朋友殊防 飛行,地點調散 會將於七月至八月
六月至八月朋举行,用毎人三十元,每班人 探訪,各項活動分別於|漧当院游泳池舉行,來 一、道,訂於及青年朋友報名參加。」
【拯班·游泳班及社區|時假旺角亚皆老拶男拔 上一期活動,計有兒童蟹,一星期六上午九時至十一
· 唐年聯會今年一月十九日至八月卅日 【港訊〕香港天主一、游泳班:於七 吸爲四十名,撥迎會員
六至八月舉行 歡迎報名
續舉辦暑期活動
天主教青年聯會
百人
̇報日僑華
1975
六期星 ® 日一卅月五年五七九一曆公年四十六國民華中
盎每銀行
加班班
秘處有心您琺
-訊紘育教
WAH KIU YAT PO
真二第張六第 日一廿月四年卯乙歷夏
流
| 時卅分至七時北分九
[日及七月一日至十五日
2 期二五下午六 陳樹渠紀念中學
班-G六月三日至廿七 會。 .
·二、拯溺班:分二 後地區,詳將會與 本港新界及離島」些茫
二十元:【艾一村達之路十號,做 | 行。只服女學員今那,「滾,綠間食上的十 |道九龍新奈科院泳齢节 禇、鋅拳、器械榄等炎 | 上午八時至十時做文福外,並安排有歌唱、舞 ↓)。第二班出〔六月心 此次展出之作品,均 至化日)逢星期六,王圓,共有二十餘項。此 日至十二日及七月號日【生平始成績及經常活 卅一樓電能,二二九五六、行開放日及成績毀號。 月[處(中股大基大厦十、三十一日及六月一日舉 有興趣者四向城會辦導,樹渠紀念小學,定五月 | 將下至五時,地址爲
今明舉行開放日
旅遊鸏
就業資料介紹專欄
01. KOOE • (+}}> · 底薪外“另加導遊費。導遊【除月薪約在一三
「薪外,更有償金金 : 導遊戲的月薪由KOOR|||00元,除
第其中有一小時的午膳。受僱於旅遊𩵚的導遊具, 【教育程庭,能操流利英語·熟悉香港一般情况. 一册的合格導遊日,導遊风必須具有中五或中六的 香港旅遊協會會員的旅行社必須用該會共
日日工作的導遊直毎日齏兩個臯程旅遊,或一個 程則要大至八小時,出上午八時半至下午六時, 雙程旅游。每個單程旅遊約需要三至五小時,雙 導遊良的工作時間是沒有固定的,大多數全 有些熱遊戲是旅行社全日工作的僱員。除固定月 處遊務及採購物品,解答妮客提出的各項問題。
外課程部亦常舉辦有關旅遊業的課程。 —— 號藥。導遊員的主要職大帶領遊客往各
·隨旅業的興盛,另一種行業岦應運而興 旅游社經常耪予職員在職訓練,中文大學校
*船。酒店房間等。 安諮詢服務,卻文件及旅遊證件,預訂飛機翼 ,迷記員,會計負,低活接過生及其他文良角
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1000RPOORNEA • 元至一000元。至於調理及經,可分別獲得 【接待工作可獲六〇〇至八〇〇元;梁務員七〇 治,在吸取工作體 息多,通常担任 旅行社初級文員的金四五〇至KOO
旅行社通常在一位區理主持,在出之下有
一切有關手續。, [機塲说碼頭迎接明客:我他們到酒店- 協助辦理 船,聯絡各地的辦事處,替顧客安排酒店,在 袢替顧客計劃好一切之後,便代他們購買發質、 前往旅行社在海热委北安排各項有關4寘,旅行 俗等。不少旅遊人士做決定到某一地方避險,便 證件、關稅、酒店設難、氣候及當地的習 【行社可以集各地的斜,例如無開領取 一 解,所以需要有開密行方谎的各種際紅俄務。族 外地旅遊的人士。對於近到地區的满况都不甚了 旅行社遍及港九,供客服務,大部份到
由於遊客多,儘管台大盛。 省之天堂,但引無數遊人士,前來本港覺, 亦比其他地區橘低,消費品無須森稅,成爲購物 【適網之中樞,且代言人,海灣優羨。生活甜疪
「遊羅尼証經方便、爭雲加滑遊。香港立於遠東變 由於現代海重優待,由空交通大事發股,旅
育教僑華
中學會考生物(課程乙)
答案
H.E.C.EE.
BIOLOGY B (PAPER I)
Suggested anewer
2.6(4). In test fube A, it changed
from orange to yellow because dur ing the experiment, the hydrills carried out reanimtion which pro- duces carbon dioxide as a by product thus increasing the con- centration of CO2 in the solution resulting a change in colour to yellow. Since the test tube is covered by black paper, which prevents light from penetrating through to the plant so no photo- synthesia could take place to use up the surplus CO2 produced as a result of respiration.
(b) In teat tube 0, át changaủ
from orange to red because during. the period of exposure to light; hoth respiration and photosvuthe- gis are carried out at the some. time.
However, the mate of photo: synthesis is much faster than thu of respiration, so the 002 pro duced as a result of respiration is used up by photosynthesia and moze CO2 was taken from the solu tion for use too. Thus colour changed to red due to reduction(in percentage of CD
(c) Since the only difference
between B and C is the presence of a wire gauze, it is possible that this causes certain amount 01 obatruction to light this only some light can pair through. In this way, the rate of photosynthe- eis will not be as feat as in C and so the amount of CO2 produced by reapimtion is uson Sut no extra Co
necessary.
In this way, there is a balance in the amount of CO2 produced and used. 80 no colour change was noted,
Test tube
(a)
trol to show
tube D is used as a con-
that what caused the. colour change was caused by the plant in the solution.
(e) ridge fly larvae, being animalg
would respire and thus help to increase the amount of CO, pro- duced and so the concentration of CO2 in the solution would: increase resulting colour change to
orange and eventwilly yellow, B. (a) Tropism is the growth move- ment of plent ivi response to an unilateral stimulus.
(b)(1) At the end of the experiment
the aboots in A would appear to
但對所欲公局 行年,排頗
訪玩參獎
be etiolate, being Long, VÁLN
The
and yellowish in ppagrance. ones in 3 would be curving or bonding towards the opening on the side of the box through which light enters, i.e. bending our vature towards light source, or positively phototropic. The ones in grows nomally streight
(ii)(7) The tip of the shoote is
sensitive' to light while thg growing region of the shoot behind the tip shows growth response..
(2) Auxins act as chemical ne asengers in bringing about the response.
(3) Positive phototropis reg-. ponse endles plants to reach the source of int a6 这有,还要 can utilize the solar energy to carry out the all-importuit. life process of photosynthesis, by which it can produce its own food
13.4(a) Algae, being the only given
plant (producer), are the ones which can absorb solar energy during photosynthesis and convert them into potential energy to supply energy for the other von- ponents in this food web. (b)(三) An increase in mter meida
would result in a rapid decrease. of algae (producers) and an in- crease of fish which feed on the mai8
(11) A decrease in fish would -
result in an increase of anails which would eat more algae thus. resulting in a deoreuse of slgae.. B. (a) The population of water.
sails X would gradually become (n) The population of water nails Y woul gradually decrease since. it is evident the fatality rate is
much as NE
(a)(1) Desy of leaves is brought about by the action of putrefying. bacteria. Which live on the food in the leaves end bringing about their decomposition.
(ii) Putrefaction of leaves. result in formation of humus Which, as weteris decompose it, causes an increase in awonium compounds in the soil. This in turi is acted upon by nitrefying bacteria which converts ammonium compounds into nitrites (by nitrosamores nitrefying bacteria) The nitrobacter trefying. bacteria converta ritriten into nitrates. This then can be absorbed by the plant for wNA " during protein synthesis. Humus thus help to increase soil,
fertility. It can also me soil light and giving it better absor bency and zeratión.
(b) dme Helps to floccolate clay
particles, making it more Lemeab-
le and legs retentive to water.
D. (a) Having a tepenoom you,
mean you are acting as host. So a PTEL Bitic animi
Ilves en- tirely on your food saapply and do is depriving you of rhit you have Since eaten (digested nutrients).. it grows
rapidly, on and nore of your stored in reserve food has to be utilized in order to main- tain your life. Thus you una “m weight. Since you have a defici- ert supply of energy from food, you 2col ti red, arî voor out. ()
-2 rows of chitinus
-nookis defiounding the rostellium these attach it to get wall of man.
•scolex (head):
-suckers- for attachment to get wall of the brot
TAPEWOR: showing head and the
structures Which enable" Yattachment to its primary
2091.
44(a) The daily intake it food and water by person is not accessar ily the same as that the body needs. The glomerular filt inte is identical in composition with blood plasma except that no p tains are, present. How such glo- merular filte te is produced varies directly with the blood pressure in glomeruli uch of its content are nanded by the body so they are reabsorbed and retum- ed to the blood plastia,. The re= maizing liquid is urine. So the difference in productie of gloTM merular filtrate and unite varies greatly in amount and aure according to varying needs of the body.
(b) Gucose is not no mully foul in the urine because the kidney tubules exercise selective absorp tion, and is controlled by a UN homone (insulin) preerat in blondĪ. (c)(1) If a large amount water
be drunk, the plasma becomes too dilute, the kidneys remove në re water and more abundant watery, dilute urine is excreted. (ii) If efter excessive festing
on a hot dry day, the pleama becomes too, concentrated, the kidney removed less water and less copious and more concentrat- ed virine is excreted.
3. Removal of the pancreas means the removal of the Islets of Lang- erharin which decrete the birmona 远远 This homone controls the
amount of sugar in the blood con verting glucose to glycogen for. storage. Lack of insulin causes
failure of the liver and muscles.to
潘便關將旅,學,七
旗迎一起深
stor
glycogen,
il«cobe
2011-
thun nets in blood, and is ruidly lost." by exretion in the urine. Tha -causes a disdage kowa da digheten, which mos.no there is an increzas in amount of glucone in urine.
Lotion
character
(1) brala ang of Choulderg
(putoile), becoming
(ii)düevening of voice
(11) ppép mice of facial hair
(beard, whicker)
fec.ndery sexual chamotoristics of girla are:-
(2) broadening of hip. (pelvic
riidla).
(ii) development of breasts
(ary glans).
(iii) menstruation
(b). (1) If the egg has not been in
femilized the corpus luteum
inisher, the hemone progester One decreases, using the new uterine Tizing to disintegrate, and the unwered cells, & cortain Smount of blood and mucus 12 Iont through no meiyan? vaginu. This is known as cong- tation
(1) IC the ego has been fertilis-
the corpus lutem persists. throughout pregnancy, more proge- stone is produced infi uencing the thickening of the uterin well, development of the placentų vascarica top of the uterus, And the fertilird erg on els itself in the thickened uterus, uniügoing the period in
isz (unbiyoric development stat
When the development is completed the berine will will contmat and the hymic contraction will. help to. expell the foe tus w
5.A (2) The intemal body temperat- ure of the frog varite with that of the exterul temperature.
But, the internal-body baperture of the bbi is not effected by any changes of extoral temperature, it maintains constant irrespective
exterm changes.
hebce Lashing
leat loss.
Thilly, Erreused metabolism, releasing are heat.
reflex action, regulta in spaand-
die corisection of th: muscine
which haunt produce Fiesta
raise the hy teapam ture.
北 can als" Elff up its fur,inery-
·ssing the layer of wrapped ais round the in and so improves inqulatigo lý reducing convection and comiction, The frog, howev
20 ach mechanism. It aimply llegiates in some moist soil (aud) and survive through the coll by reducing all its physiological processes, and only using food stored as fat and glycogen to aupply íás reduced activities wath energy..
3.(a) The cuticle or exoskeleton of
ttockroach helps to reduce fas loga of water vapour through evap option frou its body, It alan protects the animal from damage · and bacterial attack, maintain shape and allows rapid locomotion on land. (3) The Labs of a frog are speci
11.adend foí 11ving on, Taxi Its short foré-limb acts as shocke absorber when it jumpa about on 1xd. Its powerful hind limba with its strong extensor muscles nnable it to thrust its whole body. forwani, making powerful- leups in lend.
· Light rays⋅
Image on
中學會考數學答案
RADOTHYTONAH MATHEMATICS
(b) When extemal temperatures
rissa 16 40°C, cerein inteml mechanicus míst be adjusted. Firstly, vasolilation occura, foru blood flows near the surface, con- squently. more heat:canaped by. cone vection and radiation. The skin would appear to be flushed (red). Secondly more seating would. result. The latent heat absorbed by the sweat as it evaporates is taken from the body so reducing the way temperature.
e) When the extemal temperature. Brope coat 10°C the rabbit is b20 to survive as it has waye to maintain its lody, tempertum con- stant, Firstly, it coc reuse sweat production, thus minimizing heat lost by evaporation. Secondly, vasoconstriction occurs, redusing the moy of blood to
surface.
Solutior to 15.C.BLE. (paper I) Section
1 8 sin4 21+ 6sir à: 2(3sin A 4gin A) -
Bin 34
34 - 270, 330°, 570°, 690°.
930, 1050,
2709 E1≤3600 & = 370 or 3500.
The gradient at any point of
the
curve
constant)
(0,1) lien on the curve. The equation of the curve is
+1 3. CQ X
3. I (1+x) {6-x) <=8
25-140
(-7)(x+2)0
<< < < < < r < >7
The value of x sutiqfying.
of the revuzlitios 15 x
A AT = d jec Go? : 2.
PB3d sec:45
5. The area of AABC
13.aq units AB=√(3+1)2+32unite 5 units
The distance from 0 to 45
ugh
cunite
6. Let be the daily profit)
pex(30-4x) - (2
-2x2+30% -50.
4+30
* =
x=20:0
when x = 20 + P = 250
50x+50)
The maximum daily profit $250 if the daily output
20
tio sets per day.
(** 6) + (+)
-
x+6x+9+88y+16.
12x+36 + + 165+ 64
e. 18x-8= 75
The locus of the points
is 1Bx-ey="
represented by
出
70) is the point or the
locus of
Z
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|水湖鄉村風屋。
1 將在新界觀光兩天- 觀嘉道理盤場,船灣淡
【長。此外外,亦
,苦修院,東瀧炮台及
翩摩
計劃,不使任何費用,
所理解。參學生大使
小徒特對港府的活動有
大局會議及出席致
【公署官員主持之傳運會
學生大使參觀立法
【節目,今年將照常舉
訪問邵氏片廠乃屬
-玩具廠及紡織廠。去
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