1982-10-28 — Page 19

日八十月十年二八九一联公年一十七國民中

報日僑華

WAH KIU YAT PO

四期星

路上 细至

育教聞港 頁三第張五第

日二十月九年戌壬歷

於

本港新聞 女烽

下雨天東區居民早晨上班叫苦連天

巴士筲箕灣到中環

行車竟需兩小時半

東區道路改善計劃動工車輛受影响 太古城至中環渡輪乘客增加班疏導

身親瘦削,這於八月

·於賽車的照狀家 伸延至整條筲箕灣過。換句話說,由其磅起至北角皇都戲院一段,都處 都戲院而情形的應化,更是與時僻壤,由七時起,太古城的車龍,向更高,一直未回家。 死 早六時四十五分開始,自太古城便出現連綿不絕的求虢,一直伸延至望 離開其沙田禾輋出所後 ,連日來,由於連牖下雨,吃過不停,使到塞車的納况更提早出現,由身闕、軸於九月廿二日

細,走位稍靈活而已。 至中環亦索價八元。不過,乘搭小巴亦未能苋除盡布之苦,你能靠車身較

·每逢遇到大排車龍的情景,更是小巴司推「刀」的時刻,由答安魂 五,因而行人道上,亦十分擁擠,並不多同樣出現「媒人」的現袋。. 有一些由於不堪之苦,寧願中途下車,實行安步當車,加上其間想路的人」繼散。 船證所說,不少上部上學的人格出現農歌爾茫然的神色,在巴王內,

上課的市民,遲到的恐怕佔五成。 !,可以肯定的說一句,昨由榮薄,箕灣,鱷魚涌及北角一上班及

米改善之前,难持在繁忙時間增加太古城至中環綫的渡輪班次。 幅在中獎,該公司因此要加開班次疏導乘客,並準鋼在東區交通問况現仍 月來都存在。不過,昨彘適逢下雨,使環境更加惡化而已。 玻寳乘客突增四成,原是許多市民離於東區交通酸重擠塞,为短四維小 , 此外,治焜地小涵公司發言人呂超梭表示:近日该公司的太古城至中 大橋橋券的施工,使該段路面多段的行車繞由二綫改為兩徒,置情形在近 现│路改善計劃的其一項程序)工程而健版中街,亦於同一時間進行,北角 據冠考察所得,由於北角陆水道附近正進行電車路軌北移,東區道

之「慘烈」可見一斑。 .. 區域多利皇后街總站,传奇邴搭正九時五十分,歷時兩個半箭頭,其他形 本報記者於昨屍七時十分由符箕灣巴士總站乘二十號車上班,返到中

,每日上班沿途接水,更是一例,而在下雨天時,情況尤為嚴重。. 個東區的道路交通系統,最後納人一個完善的管理措施下,從而解失晝交」後,一去不返。门 瀝 的死緒,不過,在洛計劃的進行過務中,東區居民未見其利,先見其甚·蘇焼華,十四歲女帝

· 特製)由年檢署所全力推行的東區交通改善計劃,原意是希望將「一日離開其沙田究所 籍女子,身高一點五二

曲,於七月廿六日

·王芬,卅二爾,

身高一點五米。中等身

一人仕下落之消息。 市民提供有關三名失踪

下落不明

•港)警方銘科

·劉麗芳,二十歲,

利用電源企圖殺人

圖殺枕邊人

| 馬伕囚四載

「四名兒子及妻子不要報 響,否則跳樓自殺,尚

一女子乎部受輕傷。

·朱帮忙铈閉電源,

∴ 事後,被告會警告

兒子亦被吵醒,分別 下踢開其父,其他三名

(新社】一名[李姓女子於一九五〇年日上午,李姓女子法向

——二七七一七七與 諸電警察煞線電話: 是大魔女子油烤 警方聯絡。

供有關他們之消息者, 任何人士,可以提

至左脚發芳,王芬,葉

之班子,奉其妻子及時名见子,其俊李姓女子 圖用電源殛斃在睡芬中情破裂,當時已育有四.稍後向警方自首。

馬伕步線在宿舍內,金結婚,七0年時雙方廊,當方報案,而被告亦斯 聖比羅士遊戲日

家長得拔河錦標

- 染方在翻查案發現.

·聖比艇上英文幼稚

逃中之四名兒子,合力,自居住,被告在八○年內,電錢及電變滿作,作假九龍佐治公園球 驚醒發聲大叫,吵開幕於七三年離開被告,獨一場時,發現宿舍之屍蹲, 一年一度之婆國,

舉行。校監陜袄中主持

幫,而未致衆出人命,一經婚,但不狴答允。 其後他自動向警方投案年五月閎,李姓 將其制服及關閉電源總 期間,要求與陔女子

二百五十伏特森的電力 一旦接上電線,可產生

,屬下尖沙咀、深水埗 沙田各校之家長員生

解最高法院審訊,被告,搬回沙田馬伕宿舍被告落案檢控。· ,被落案檢憾,兩週】 女子為與四名兒子同住,而足以致命,於是將被,將近千人參加。梁淝水

一校長致詞指出,該校年

被告余日昌,四十多已入房就變,翌日

畢,侯空昨日宣判 米家,四名兒子同 案情透露:被告上格床的大兄于立刻跳上上輕刑。 欣身體受壐傷。 一房,於是大叫,穿想睡,比西事,希望法官子以歇業聲,烤果家長隊奪 內,企圖引致女子李如貓其手,女子手被灼人忍無可忍,才做出如,師隊之拔河妤、贏得全 馬伕宿舍其中一個單位 告于排馆疑走近床邊接苦,鏟次是因為對受害,對冠軍,而家具隊與教 一年九月廿四日,在沙田然在睡夢中驚醒,凡很,而名兒子,連活非常親,結果由尖沙咀校奪得全 八歲,馬失,被空她去跑十二海市,該女子第二成,被告一人獨力照顧各項比賽掘照開, 「關被告之身世報告杰说, 另外一分,案發前一晚三年期間富李姓女于離兩戶外活動與比賽,訪 ,按察司麥道高審問冇住一,而被告則獨,被告求情時表示,七願身體,亦經常舉辦各 铃共入狱四年。”,李姓女子與四子九時,明家施時,幼子祗得三開老人中心,提供歌件。 得錦標

被告之代表大律師年校醫都爲兒預觅符檢 |娛樂節目。

易型他,

美跳!

支鏡,有

【暫時仍未知。

·活動者,但還有三含官徵。

·是參觀迺類飛機,它適合行走省與省間的民航四! 中國客發指出:他們此行其中一個目的, 同角裔人x贰价發遠參觀。該校設有座位七 14:1 4 6型鼓版型客機活動時作上还透露。出席,可示其飛行時特別率段,省油和只需较小型 談及中國是否會悶買此類飛機時,他說: 的要求,在指定的航綫上飛行。訪問越束期間 分邀請各航空公司經理人民、飛行性、民航 拹堪使可升降的優點。它亦將適個別航空公司

• 波音公司啭買兩架七四七型波音客栱。 【日參加英國航空及宇航公司在本港介绍BAE 中國民用航空總局財務局局長盃國話,昨·亞和紐西蘭,到訪的地區,都會作示籃飛行。 (特)中國官員說:他們將於短期向美洲訪問飛行。它訪間的地區除香港外,雞包括 印度、日本、馬來西亞、 架 B A E 146 型客機將向各國的航空公

·澳洲·巴布亞新畿內

中國

中國短期内將簽約

增購兩架七四七機

.關公司已

·國航空及

航機是英

字航公司

步接觸。

右年四月

艾

-成立迄今

“他們與

英國新支線噴射客機飛抵本港

出

- 波音公司

推出的第 一架新式

示範飛行介紹寧靜及省油特點 道

心將於期內簽約。

軸中估詐,八十年代末期,全球約需一千架類,國航空及宇航其他四個部門分担了境要元件的 1.英國航空及宇航公司酸蓄人昨日在介紹洒一集團的哈特菲爾·做斯特分部全鲩負街,但英

似的支绫噴射等獎。 "

他又指出:該微是由出廠北哈特菲爾出發

飛發 四家 空年针航湃彤

【訂娘其定 航療 七四·撒 ㄙㄨㄟˇ

單後 偏期 透得 八强 斯畎

一,進行一項六萬理及飛行時間務一個的亞、澳二傈此類型飛機的正義。《家》

>出同商,不行它門分研

前 的定市和面速莋 點

一目點有的7全担 全工

接飛了場首展蛋

該種

於一九七

1983

中學會考試題預習專欄:

(六)

物

生 明德出版社梁永華 提供資料

(e)State two structural

differences between

the cells labelled D and. E,

(1)How does the presence

of stomata in. the

lower rather than upper epidermis. contribute to

photosynthesis?

What is FP

(g) (1) Give a function

Anavers:

(a)(1) Cuticle.

(2) If cuticle is

absent, the leaf、 would be subjected to fungal and f bacteria infection,

(b)The

·mechanical damage, and excessive loss of water by Evaporation.

chloroplasts in the upper epidermis, (c)This feature permits

light to penetrate deep into the

photosynthetic tissue without passing

through very many cell walls, so

avoiding loss of light by absorption and reflection.

(d)(1) B:xylem:

C: phloem

(2) B:1. For the

transporta- tion of water and

·minerals from "root to leaf. For the mechanical support for.

the, softer: leaf tissues.

C: For the

"

transportation

of food

from

Substances where they are manufactured in the leaf to

BIOLOGY (6)

WW.LEUNG

MILL & DALĘ PRESS LTD.

•Unit 2: Photosynthesis

The diagram below shows a transverse section through thẻ. blade of a dicotyledonous leaf.

(a)(1) Name the structure

(2) What would happen

if part Ais missing?

(b)What is the most

significant difference想 between upper. epidermal cells and mesophyll cells?

(c)What is the advantage

far the palisade cells to be arranged at right angles to the

leaf surface?

(d)(1) N

Name the structure Band Ca

(2) What are thei

respective. functions?

(3) How does the

distribution of B and C contribute to photosynthetic

efficiency? growing pointa and food:

'stored areas.

(3) Xylem vessels are.

closer to.

palisade célls then phloem sid tubes so that

water can be

easily absorbed by palisade cells

for photos, Zēsis.

(e)The structural

differences between the cells D and E

are as follows:

Cell D

Cell E

chloroplasts

present:

absent

Thickness of cell

uneven.

even

wall:

(f)The presence of

stomata in the lower rather than upper epidermis enables the

plant - to lose Less

water by evaporation

:when undergoing

photosynthesis,

(g)(1) F. Air space/

inter-cellular

space

(2) To facilitate

gaseous exchange in mesophy117

After a potted plant with:variegated

leaves had been placed in dark for 2 days.

one of the leaves Was

treated for. 4. hours as

in the experiment

illustrated below.

glass

bottle

soda Lime

coveted. With

tin foil.

The unshaded area: the; green part of leaf. The shaded are is the non-green part of leaf.

(a)What is the purpose of

keeping the plant in dark、for 2 days before the experiment? (b)What is the use of

soda lime? (c)Indicate by letter(s) the_part(s) of the leaf which would turn blue-black after the Todine test.

(d)After the Todine test,

which parts of the leaf show that (1) light is needed

for. photosynthesis (2) carbon dioxide:

needed for photosynthesis. (3) chlorophy11 is

needed for i "photosynthesis.

e)Explain why starch,

but not glucose, is an indicator of photosynthesis?

Answers t

(a)To destarch the leaf

so that obvious results can be: obtained after the Todine test.

(b)To absorb carbon

dioxide:in the glass bottle.

(©)A

(d)(1) A·and C

(2) A and Ħ (3) A and

(e) In most plants,

glucose manufactured

by photosynthesis is converted to starch immediately. Only starch, but not: glucose is

accumulated during

photosynthesis

1983

中學會考試題預習專欄

(六)

物理

明徳出版社盧國雄 提供資料

PHYSICS (6)

HK.LO

MILL & DALE PRESS. LTD.

Answers to Exercise 3

(a) Take the direction to

the right as positive. Initial momentum of the

target

=(100) (-3)

m-300 kgms

Initial momentum of

a bullet

=(0,01)(600) #bkgms-1.

Assume a bullets are required to stop the motion of the tanget: the momentum of bullet

won kgms::

Since the target stops finally, therefore, the final momentum of the system

is zero,

*on-300=0:

n=50

(b) The energy lost

during the impact --(100)(3)2 + (0.01)

(600)2(50)

=450+90000 =90450 J.

Let 8 wdensity

copper

(Ans.)

Weight of the copper.

cone

12

2(停z2n) (8) (女)

Weight of the copper

hemisphere

(3πr3) (9) (g).

Since the centre of mass of the combined body is at 0, there- fore, moments of tie weights of the cone and the hemiaphere about 0) are equal în magnitude.

(=ar2h) ( 9 ) ( 8 ) (+b)

h=√3r

(Ans.)

(b)(i)

Gia

As shown in the fig.

the centre of mass of

the combined: body

from fo*

of

Hence, moments the weighta: of the cone and the hemi sphere about Gare equal in magnitude

(jun)(S)(g)(zh+g+-x) > ({ tr3) ( 9 ) ( x) (x)

.h(a+dr-x)=2x

(r+r-x)=2x

(Ans.)

(11)The system is în

atable equilibrium because the e.g. is below:0.

8 kg

78k

As shown in the fig Ty and Ty are the "tensions in the

string. Let a be the

: acceleration of the

18 kg block, then the Ekg block is 28. T=8(2a):

168 2T

(1):

.(2)

(3)

18g-272-188

Substitute (2) into (3)

18g 2T

1-188.

9g - To

Subatitute (1) into (4)

· 98-16a=9a

25a=9g

a-25(10)

(4):

(Ans.)

acceleration of the 18 kg block

2

1s 3.0 as And that of the 8 kg.

block is 7,2 ms

(b) T-=16(3、??

5,6).

-57.6 N

-(r3)(3)(z) (2x) (©) T2-2Tj

-115.2N

Let Nuthe

reation fram.

the smooth wall of the cylinder Wwweight of the

hall!

R=reaction between

the ball

R

W

The direction of the. reaction from the smooth wall of the cylinder on the apper. ball is normal. to the wall and towards the centre the ball.

(b) As shown in the

diagram,

BA=2x(radius of the

ball)

−0.2m

BP-(diameter of the

cylinder)-2x

(radius of the

ball) -2x0.15-2x0.1

±0.1m

AP=JBA"

sing_AP

AB Since the balls in equilibr

Rsine-W

(1.5)(10)

·R-17.321, N

(Ans:

water

Let d=density of water ?=relative density

of the wooden block

Upthrust on the block due to oil

(0.5)(d)(g)(8A)

where A is the cross sectional area of cubettaja

Upthrust on the block due to water: =(d)(g)(2A)

Weight of the wooden block

=(9)(d)(g)(10A).

(8)(4)(g)(10A) -(0.5)(d)(g)(6A)

+(1)(g) (2A)

10 3 -4+2

§ -0.6

(Ans.)