1968-04-04 — Page 23

華僑日報 All

10 AFK 1768

CITY

HALL

賈三第張六纳

君七初月三年由戊馨票

WAH KIU YAT PO

四期星

日四月四年八六九一般公年七十五國民集中

1463英文中學會考試題預習專欄

Antenna

生物科

(廿三)

慶百琴。

Biology(23)

Eggs Wing

Spiracke

Kespiratory Siphon

·LeB

Compound eye

6th Abdominal Segment

Anal gills

Avisker" to`the exercise of¡last week:

short essay on the habits of

1.(a) write a

mosquitoes,

(b) How are the mouth-parts of a female anopne Lins

mosquito adapted to piercing and blood sucking?

An Adult (Female)

Thorax A Larvą

Ans.

(a) There are three important types of mosquitoes,

namely culex, Anopheles and Aedes. Anopheles mosquitoss are the carries of malaria, yellow fever, elephantiasis and dengue fever all of which affect man in many cases can be fatal. The organiems causing the diseases are carried from one host to another by the female mosquitoes which them up while feeding. The development of mosquito is a complete metamorphosis. The female mosquito lays eggs in water in summer. The eggs hatch in wet, warm weather. The young pass the larval stage in water, and leave it when they develop into an adult.

Compound

Eye'

Antenna

A pupa

Mouth brush. Antenna

Eye

• Respiratory trumpets

-Thanex

-Leg

'Tail-plates Life-history of a Culex mosquito

The malea fend by piercing plant tissuen and sucking the juices or more commonly on the nectar of flowers. The females feed on the blood of animals and in the proCESB frequently spreads disease.

Unlike other insects, the pupae of mosquitoes are active and live in water freely.

(b) In the female snopheline mosquito the labrus

and epipharynx combined fürm a suck tube; the mandibles and maxillas are piercing organs; the hypopharynx carries saliva; and the labium constitutes a sheath in which the other south parts' lie when not in use. When the fasule bites, the forked end of the sheath 18 pressed on the skin, which is then punctured by the mandibles and maxillae, so that the probis may be inserted into the wound. Sakiva pasmes down the lower part of the ture, and blood is sucked up the upper part of the tube, formed from the labrum, into the gut of the insect.

2. (a) Descrive, gwing fully labeled diagrams,

the life-history of a Hamed mosquito. (b) Make a comparison of the culax, Ásdes, and

Anopheles mosquitoes, under the headings of

Ans.

:(a)

(1) eggs, (11) larva.(and (111)

imago.

HON

The firenistory of cùlex mosqui described as the followi

Egg stage The eggs are spindle-shaped are laid in masses of 200-300 floating on the Surface of estagnant Mater.

Larval stage: The Larva soon emerges, consisting of a head, thorax and a nine segmented abdomen. It grows through four ecdyses, its aquatic habit pecessitates frequent visits to the surface for respiratory purposes. It attaches itself beneath the surface file. with spiracles or the

eighth abdominal segment projecting for the intake of air. The spiracles are situated at the end of a tube, the siphon. When the larva is moving through the waiter, the spiracles are closed.

The head of the larva bears a pair of eyes, pair of short antennas and, two pandibles. There are alse two sta11 coupleurushia, Bũ the movement of thể mouth brushan, small oganisms and other food particles are drawn into the mouth. Pupal stagei - After a few woska, the larva, by now about half an inch long, changes into the pups. The pupa consists of an enlarged head and thorax. with a slender abdomen, and the whole

教育惠

ban gs. beneath the surface of, the water by means of a pair of respiratory trumpets. In the head and thorax parts, developing eyes, wings, legs and antennae of the future adult can be found.

At the end of the abdoman is a of tail-olates which act as a tail-fin for swimming.

After a few days the pul skin splits and the imago emerges

Adult stage: The newly formed adult which remains for a while on the pupal skin above the surface of the water, where the wings soon dry and the cuticle hardens, after which the insect forsakes the water for its life on land.

Larva

Culex

Eggs are stuck

Aedes

Anopheles

Solitary eggs Solitary egg3|

with air

together in small floating

separately on chambers

raft floating on

the surface of water.

the surface

A siphon with spiracle on the eighth abdomin- al segment. The body makes an angle of 45 deg to the surface of water when breathing.

imago

It stands with all leg in contact with surface and with body parallel to surface.

of water.

Same as in culex.

Same as in culex.

floating separately on the surface of

water.

The siphon ia absent. But it possesses a pair of spiracles on the

eighth abdominal

| segment. The

body lies parallel to the water aurface when breathing.

It stands

with body

at 45 deg. to the surface and often with last pair of legs

raised.

Questions for this week:

(a) What do you understand by the "sociâ life" in the animal kingdom? Illustrate youY answer by reference to the honey bee. (B) Restricting your discussion to external

features, show how theyworker honey bee 18 adapted to its way of life.

2. (a) The nature of an insect's diet 15 orten reflected in the structure of its mouth parts. Show how far this is true of the cockroach and the honey bee.

JES

By describing the essential parts of their life histories, explain what is meant when the cockroach is said to have direct development whilst the housefly is said to have indirect development.

將 窖中校友

龍蝦灣野火會一

友會會附伯

做肝火太会。空晚上 二時行都

商會並太中附校商

席話 各雙友下,

安當

『 號。在該校发

項揀变,宴會及文

時開始派發報名表(只限發給案長),派完即止。家長 中一至中四及下午班小穴新生,定於四月十六日上午九 本校下學年度攟班增加學額二百五十名,招考上下午班

德仁書院通告

上明

午賽

取考試證,新生入學試定於六月七日及八日上午八時半 填安報名表後,須帶備殿 生成積表及出生證明書來校领

起舉行特此通告。

校址:九龍角奶路臣街二號

副 校 長 黃向榮

監臠兼校長 林德光

電話:八四五〇10

升中村及格考生所選 ,以及可提供 上 中入樂的事位分忠戲份宋有掛起。八戒》院實習,一九六六年比,鋸各教師即選。 【老學校,因可派員前,就度。惟今年增加|曹學博士學位,一九 青立本英文 餐牌,的繞,就算是加爾 往散。留於今年外资者干囊度,勿下 *五年夏澹以类,在紋校晚没事行斯第二抓好掌的一小段

《䰾》

本年度升中考試 定五月三日舉行

估計比去年爲多年來 今年可供派遣之中學學位

親省港囘士博文典村

教育部主席品有湛研究,中國

舉行音嫩的

精易生則多不诺中度公佈。 一個高共有五千一處,享的氣流,同時,区 港九新界各區,對香座及擴大神勛私立中

【英,算三科,其他畫紅雜到本月下旬方可 安排方面,需著至一個多,因候近于年來 的弹會擔正中熱熱保藥,第二視無賴把來語,這還餓統,以 受藥,源於 百二十九說抨分然于政府已致力顶建中 港 一九五六年 羅巾學各孀友云。內,织顶猳勵雅。上天棒價上 生大燈的關係,就塲 昨年之一莖一千條個 ] 供栖中學 六甴美飛飛省親,並冠以主成地,距何起畫參加,表演各做集 而故务钟强英文,今年可資提供升 博杜英文博士研究 研究者,杜惠儀。(五)(梅英语 腰的學校名悠,刘大典 聯會小學 研究院研究,對於畫 第一組,上班中文 紋 杜鹃風公子 人之道勿力拉叔際朗誦冠朱威遇,夜軍 [英文朗誦第一日通

助府

私致

學及

位擴年

堆大來,

1 美國貝卡】

,新界區則有二十六補助及伊斯中學以三

覺 _區共有五十二線府亦于他前起,規定

1

多之一個原因

,如獲得成後最後區 中式篮得分派學位者 因患,一九六五年獲 _弟生在放学就中之九十學位供參加升 深造,夏研內料及紅 【年爲,要撥出百分 撥進傑弗臣醫科大學 〇年畢業:

數位 稻私小满人。

日式時間裏,昨亦經

關考試之各項麼事 在及把五,休息。二時四十分,而普通母校保

於5月三日行,有間患難暸如下:「文一。 定並由升中國公投 中文威特選英文二,小學,及私立小學等, E - 現正當橋樑極 入勝拭海試時間表有三萬七十餘人, 君,在极致會管的忠等、等計會主席別殛率。下涵伐討會協閉烈情况。(本跟記者攝〕 四時五十分止全部,四時五分,休区。 生子咕鸠參加考中,只會昨亦已分製各姆·友質助游水,相降必有一番高興。(浙) 正直,三時二十五分'遺參加者。中國高考經就,升中考試要學生愛戰。是日文榮中村歐陽方米桉

〔特凯己本在肥 按,把考卷時間悠四{四時五分至四時五十罐 • 牁可粉 ·哦費 一九六六年度第今年參加此項中學五年,以完成其全 至三時二十五分,考大個被人欺之內皮,考生考試證,日前榮校長雙學金之同學。靳氏秀藝精湛莓 原本區升中試之正:時間(下午)一時看。此等考生係包括好者,亦將分別檢,校发。該會規定于本月六日(屈期六)晚 ,五分至二時正,考來自官立小學及辉达中學季额以升上中學上,假於酒家集行同人大會,並略盡任

|座補助中學或工業中 《五月三日星期五》除息將生人數之最多餘名,而其他他畫農三十餘年,每年舉辦各核予向,以粉格 有阿此大为武之称。核並抱臂析微天花榮休,及問各 舞,由該會主席及財務報作一年會務及材

(特)合文本中學校友攝,芑成立 六日晚聯歡

, 一年級攻讀。

ST. PAUL'S PRIMARY

CATHOLIC SCHOOL

保祿

(天主教)小學

一九六 立本英文書院不流,而當錢的小書放置的各 (特轵 }愆我和‘午袛第一組冠軍王業 羊 中英文期變,觀草李忠輝。下唱,出得商竞感京

英。第二組冠軍卻型。其他如出歌真大分

一、斑

招收壹年級女生

十一陴三十分止

地點:阿馬地索泥涌蘆本校 蝇名時請佛宗生出世莴

時間:每日由上午八時三十分留

日期:英文部下午班、四月九日 *中文架下午班-四月十月

中文部三十名

英文秘三十名

注意:及砾名默一

二、報名日期:四月六日(墨期六)正午十二時 至下午三時

額:小學一年級上下午班各九十名

招8至102年度小學生 瑪利諾神父教會學校

三、接見日期:四月十三日(星期六)上午九時 鈷:照教育吗署規定

下列各件: 1.出生紙 2.最近學業成 報名學生須由家長或監護人同校,及硬

接見時憑名收擴到校入見 校址:九龍大坑東桃源

3 最近半身对半相片二張·

4.報名費一元

校監:賴神文

粒芝加高學校 1九四六年前第

校址:九覬油榨油窿打街、教道四六

新班(一)汽車及油機工晃全科, 校長:余藏安

四万十八棒

> 12 - - 646911

話 址蘿喜

純校暨夜校招生

【校校校

大帶九尺,樹目

址;正校;九龍灣裝懟229號(近佛教數誥》

玫瑰崗學校招生

班級名類:(一)幼稚園愛班:男生250 女生250名(如藏五歲)

幼稚團高班:男:20女生25名(五六歲)

(二)小學部:一至六年級每班男女生各20名♦

(三)部部:中一男女生共20名。

中二男女生共40名。

中三男大生共90名。

中四男女生共90名。

報名日期:一九六八年四月五日上午九時至十二時;下午一路中望四時

姓:(一)將逸間學生照片兩張及田中與報名費二元。

(二)請乘搭6.6A.6B-11.15名巴士創來報名

(三)本楼下學年裡起校車行數儲錢,東行車區青地花園 止,請行車確打造止。新世界站粒小學三年 毅及中高生乘,

址:香港司绳披道41號B

校監:江士林神奖

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