刊週學科育教頁一第張七第日十三月八年巳丁靨萬
WAH KIU YAT PO
-on the degree of filling
育教僑
華
and the digestive condition of the atomach. It is
生物
1978
「中學會考試題預習專欄|
明德社主構
BIOLOGY (2)
Unit ONE Nutrition
梁永華
II Conventional Questions:
1. The following diagram shows
the rabbit digestive system
a. By means of letters indicate.
the appropiate organs which Carry out the following functions.
(1) production of pepsin (2) absorption of anino
acide
(3) absorption of water (4) production of a hormone
which prevents diabetes (5) digestion of cellulose
to sugars ·
b State the function of the
aphincter found between F. and B.
c.How is the food prevented
from going down the tracheal d What prevents the aliment-
ary canal from being digest. ed by its own secretiona? e.State two structural fea- tures of the alimentary canal of herbivores? Suggested answere:
(2)B (3)D (hic (5)# The pyloric sphincter is
which
a muscular sphincter
opens and closes depending.
important in controlling.
of nutrients
the supply
to the small intestine.
c. During swallowing, the
larynx is elevated invóm
luntarily against the
epiglottie, closing the. way to the trachea. The mucus of the mucosa.
The two structural fea- tures of herbivorous alimentary canal are:
(1) large caecum and
appendix
(2) a long intestine,
The variegated leaf had been placed in dark for two days and treated for three bours as in the experiment: illustrated below,
KOH Solution
Cotton weal Soaked in. lime water
covered by tin Foil: glass
bottle
Leaf parts A, C, E and n are green, Leaf parts B, D, F and u are pale yellow。
What is the use of KOH solution in this experi- ment ? :
0. Describe and explain the purpose of keeping the leaf in dark for two days before the experie went.
Which part(s) of the leaf will turn blue-black when they are treated with the iodine teat: ?
What conclusions can be drawn from the results in'(c)2
Suggested answers:
a. To absorb carbon dioxide
in the battle.
b. The purpose is to ensure
that no starch is present in the leaves so that a distinct result would be cbtained if starch is. produced during the experi
̇ment.
c. Part A only.
報日僑華 三期星
d. Carbon dioxide, chlorophyll
and light are essential
for the production of ch in the leaf.
star-
地理(二) 李婉儀
黎仲豪
GEOGRAPHY
Answers to . 1 & 2
Instrument ca
a. The instrqment is a rain' gauge.
b. The different parts are
c.
Funnel
Copper cycline
Glass Bottle (jar)
cake
D Outer copper
is used to measure the amount of rainfall. When vatu falls it entere, une jar via the funnel, which helps to minimize - evaporation, any water overflows from the jar. is collected in the copper cy- linder. The water collectua
a-tnen measured by. a tapered measuring cylinder, graduated in m., according to the uzame –
The ter of the rain-gauge. measure is tapered to enable very small amounts of rain to be measured with great accuracy.
d. In setting up tue rain gauge, the following points must be noted:
1) It must be puu ou level ground
2) it must be placed in an exposed position, far way from any objecte wana kosa lagg 27°C affect the amount of rainfall collected. lf tue sur luings and trees are presen, tae gauge must be positioned away from them, at a distance of at least twice the height of mess objects.
3) It must be sunk in the ground so prevent it from being blown or knocked over.
4) The top of the funne d aust be dv.ou (主alauve ground-level, to prevent rakn nearby splashing into the jar.
Instrument b.
a. Tue instrumeúl as a vet bulo anu dry-bulo tuermometer.
The different parts are
E Mercury in stems
Wick
Muslin
日二十月十年七七九一年曆公六十六國民中
il water in a small con-
Gainer
c. It is useu
and the relative humidity of the air. Ine wet-bulb the mometer, whA has its DULD Covered by musiik wi ba wick dipping into a con tainer of water, usually shows a temperature lower than the mi ary bulb. LvL Decause when air is not saturated. evapora t100 will take place from the wet mus LAN, The cooling effect of evaporation will thas cool the thermometer, causing the mercury to contract. Thus the wet balb thermometer will read lower taan tuë ury bulb which ia not affected 14 way.
The difference between the two readings lə, tuerefore, an indicator or ne numialty
the air:
of
- if there is no difference
the air is saturated.
if the difference lo smail numidity 18 nign,
17 bis dxfference is large num aity is 102.
The actual value of relau tive humidity is obtained by checking the reading from a book of tables.
d. Tue wet-bulo and dry- [bulb tueĽNODSTER" must be noussu in a Stevenson Screen, which is a wooden oox, painted in white, with double louvred so that tue Bii val olow in and our freely, The screen is mounted on a wietal stand to prevent direct radiation from the ground, is put in the most exposed posrulon with Lte door opening to me north (in the N. Hemis- phere) to prevent the sun shin- ing into the screen whilest readings are being taken, The wet-bulb and dry-bulb thermome ter must be kept wet all the time.
2
attacks agriculture there. Industrialization is the urbant areas has attracted a lot of labour from the rural to urban areas, which results in a deficency of rural labour force. Thus, many of the rice growers have abandoned their fields. and moved to the urban areas.
The above phenomenon 18 expecially true in the isolated parte of be N.T.. For those fields bordering the rail and roads, many of them have been converted to intensive vegetables growing=" The rapid increase in vegetables fields, on one hand, is to meet the increasing demand -àn the Colony. It is because:
after the second World War, the consumption of vegetables in Hong Kong increased greatly due to the apid increase in population.
The crop which ahows rapid increase in the area of cultivation is vegetables while the other, which shows a rapid decline is rice, In recent years paddi fields in Hong Kong have suffered a dramatic decreqse. It is partly. due to the urban expansion in the past two decades which resulted in a competition of land for construction and cultivation... Since more fresh water has to be directed to
urban urban uses,
expansion is also a cause of the scanty water
supply in the rural areas which
○年別性示:一樓的焦
Un the other hand the relatively high profit is an encouraging factor. Profit from the growing and selling to of vegetables can be nine" ten times that from growing. rice The rapid increase is also due to the improvements in transportation in the Now Territories. Since vegetables m are easily perishable food de-
the manded by urban dwellers, construction of highways link- ing many parts of the NT. with the urban area 18 encour- aging, too.
Question for next weeki
The figure below showa the temperatures of three cities and their locations, Discuss the various factors giving rise to the diffesences in their temperatures.
JAN. THE JULY TEM
3% 15
·LEIT
CITY
Tokyo
Landhi
*0.5°
Frochus
-16% 27.72
Lanchow
Taks
Compare and contrast the agricultural sceneries in the North China Plain and Szechwan.
Basın.
第一九五期
科學
香港
吃鹹魚會引起癌症
在南中國的人,因早年多吃鹹魚,加上
很的
普危年。
其他的因素,患鼻咽癌的危險顯然增加;
仍律因
然賓素
很人
咽加
但菲律賓人吃鹹魚是很普遍的,鼻咽癌的
發病率仍然很低。
̇向醫生說:遺傳
這位菲律賓醫生說」「十年期至
,脊港的癌病店家何 包括香港的中國人)息 吃鹹魚,相信善哦癌的社會:經濟革命」, 早期治療,很容易痊 然增加南方的中國人( 拾让們的子女幼年時對人民的習徵將產生一次皮賞遊則廣例外,如果
•術,加上其他因緊,顧 如果好港的中國人停止|商·[淨律賓基村地區 中癌症沒有復發,然而 鴻超醫生說:早年吃贼 病鬘因素無法可想,但一 - 假如何發生的理論正品,這表示,在這段期間 | 發病率 - 再過二十年,一角是一堆日不過,底「根治.9.
鼻咽癌的危憶
: 何鴻超發生,在第 可能大大地下降。
電腦產房
俳况時,被糸統實發出警告訊號。 山形,被記錄下來(上 3 傳迭到霉連桌上的「讓出」站去。在出現失常 白用選腦系統來測錄病人狀況。即將生產的婦人的胎兒心跳率及子宫收缩 美國加州奧克蘭的馬克,菲爾海軍醫院產科房的醫生和聽士們-現在
哦衋是香港牾
潘丹科設 金管菲
律
賓人吃該魚很普遍,
出他的理論。一名菲律
賓專家立即加以反對。 孕時期應該不吃鹼魚 何醫生說,與吃辣,感宜,這樣,就不會道,女性的發病率是千萬分 四天的新聞消朝中,提,死亡的主要因祟之一。 何梦生說,母親」 想掂發病率仍很低, 僅十萬分之四點六九
自行分解塑料 一名詞今天則在美國全,灤淋巴癌和血癌會縱中,爲研究工作者一再使用一那簡直是吹毛求拼。我入液造————可用水注入
* 他們能到兒童和成人們目前有可能開始才君、伯期剪(DR. A. S
血猲(俗稱白血球過多 其他類型椹症的爾惯好| BATHELOR )博
而散哎了一個套境污染問題,美護「工業研究] 治療成糍時使用了「根說,三十年能,兒童一然飬把巖若嫌閉,他越 - 自從S料問世後,塑料容器的用途日廣,因「ODIGKINS」的淋巴癌 尼費巴癌症學院菲里博 底下鑽 诚孔放置炸换 [坭)以及一榭名叫TH 轉成精」。波士函的剧|士的假散是:在巖石的
保宜時
傳因崇和人體存有某種,國級王」,因當鱗魚帝「鳥人)通婚的非彝賓人分分解,解決環攤污染問闊,圖示用道香料踢製方法維在十年前已開始可活五年,許多目前還便宜的熱能 的其他兩種因素,是選。他指出,棘魚一一示,與中國人(例如 質料,用作容器原料,在自然環境中會於使用混合多種藥物。平均只有兩個月, 有很多垂度的澳博氣點
男顧。
,發病率上升。”
應是十眞分之十七點五。完全加以排斥。 〇融四。女性的發病率,但他後來說,他「並非」,很多人十成十二年微 一年發病率是十萬分之四,給他的印象不很深:「粥在百分之七十至九十
有亞硝胺,這種物質相 「性的鼻咽癌比鄰高,特嗲生在同一次新聞圈殺 某些藥物,治療兒童 使用昆等的理拱原料。 示,香港的中國人,男 菲律賓專家潘丹科說,化學掀法,或兩用而分解。這是可通用來供移植樹苗用容器到製造 美國的費洛曼特生 成的杯子,在一年內瑟乎完全爲役生有觀體消化 麽用。
; 經過較析方法袷察後說某些病人已「撈歲」一│一般都只稱爲「五年 對於某些類型的癌 癌症專家目前有個心了。就算近期,癌症治
美國發明新藥物
可治血癌淋巴癌 白血球過多症已非絕症
說話的研究
和甑背麥祟之間的關係, 所的研究人角設計道一套器,專門研究人類說話時的作以及此等動作 【括對舌和a的動作及氣堡和聲量散開。西雅出的華盛頓大學群古生理實驗· 在有彈性的金鵬敏感器上加裝的張力計「張儀),用以測人類說
一斯醫生稱:「今日,我們樂於報導,已發現了預 預防注射,效果非常良好。」該中心的總裁吉泰 始流行淄漠炎之敬,約有七萬名屍藏帝变了新的 國家傳染病控制中心稱:「自一九七三年苏開 部份爲兒童,每年約有二千至三千人因此喪生。 【幼童 翡危險。每年約有3萬人腦膜炎,其中大
神栖中福,會導致神經不正常甚至死亡,尤其對 面-獲得一項度大的逃睫。」腦膜炎會影响大厦及 英國的特生最近宣佈:「在預防腰炎病方
可預防腦膜炎症 美專家發現疫苗
防腦魔炎的疫苗。」
並年過
- 不說他們是痊愈,又少。現在我可以說, 取一種 一臂女,過萱常人的生活,我只能說治好者少之出的力量,就表示出抽 |人活到成家立衆,生兒們有沒有人治好血癌|如何爆裂,而這種爆發 士說:「患過血癌的病,年前,倘使你問我,我其它珙熱在第一孔道是 「學研究院J袼爾頓博|烈治博士說:「五尺的孔鵡 然後觀察 英國倫敦「皇家裔。得州大學洛症中心的 岩底下鑽了一個三百公 | 怒而取得的成莉 - 邇一,現在經過治療百分五十一噴射出來。 活,並可以活得更長 • 伯斯勞教授在花岗
專業訓練
慢,不停地把液後入
地面上要有一個盡力幫
,也將在此接受專莱譪神。 衆造和起居之用的。來自其它國家的公司員從外地象入石油便宜得 座公園,是供來自美國和加拿大的施樂公司職員 有六克卡的點,比起 讓塊堆加不少風光。抵六贊高的建築,中間有一|瑞力能够接發射的最不 施樂訓铼和綵營發蒉中心的新大厦建成 - 爲週圍非常有用的資源。进维 ,在美京華盛頓附近的穗吉尼蛋州的林木中,一個報告辮,這是一 太多了。
中抽取,每一個壓力就
就認樂的懷的
用
有把想治好。」
民:所以這些熟能能够
枝抽取的話,則是一種
驗實的能熱下地
上是氏尺的液崗的是沃斯兼沃英 五下開 升辧四海 摩鐵物 英耳能 石耳國 研千會科繁始 盛每十迎量 對質國的。而鑽西 鉈英機學能伊英 氏下配升,收不。最花因 抽取用人錯欸研的抽网 四障,高每不同此 主崗3 取部 鼎粉三究研取退
博多十一麗滿公同的要巖棄其票 科馬克地巳
力鹽份的
「爆開,然後在其表面注
就如何把最石的表面 力,可是最基本的困難
【份的發吸,而科學研究 與會正作這方面的努
的技術到現在還沒有-
但可是逛種抽取弟熊 腰痛和其它相似的工作 用作溫的變氣,會 非常便宜的帶館,台灣
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