1979-11-23 — Page 28

【教師應如何啓發

學前兒童語言運用能力

教署幼稚園組首席督學甘珠

5號一說話能力,而按照他 求答案或解网。

們的需要而桧予適當的. 人物或事

自見許高獎一峙知的都壓受的及程表的及理變裡R 巴對試與曲峨・道,份兒行,爽無頭部隊生口發個能師

日三廿月一十年九七九一圈公年八十六國民華中古敦儒笨

̇意的想恬成份兒童句至以雙間用推・髅殺連音樂的,各話前見克 按見完和能,兒開開,簡送很一幼能問他,地謝然號能,金

連輯~內段外帶力但意的始對單單快完但些克力斯的並開正鍊話力我親在。

翼四第張七第日四初月十年未己曆夏

WAH KIU YAT PO

報日僑

五期星

說話用途

.表達方式

己使體可是已器的力的病該期主法字: 及以满珠的能句镤

自通把進把的仿一在尊因驳再撰 別當用還步揭一,五非對此事歲的

後一模一

活法意一对過要的在篩差,成句幼篇。 表要及便智及語了。說遠性一個人的見把方 達的關姬力眾生多,指方的谢個及承时握式 自時句而發用及次能面影語浡年用器到”

PL的常去用間在一人些自輕聲很學,响力反智能 人以己嗨十然离右法童能兩音一歲未受發在,以有程兌顶

力

秦商的的分有或一的司都力歲和地就有,音域 通黎思奉部幼兒每升可爱期運把後說但表產黨

思幅有追悄成的會金他意茵度一。使想思语一。的感度:所及幼進, 一在想燥的使。是瓦從出會而出形幼接的想合配拉舌影一起按兑 展 口呼他和音運單一實成某不未的响兒

吾要表了靈武或處聲覺思音太話:語系金映力牙、喉受以威

宣統及齒 部生下遊得

神他里褉有是獲音地巧大。

子並表都音端入三精進許的一字一商股要不,的 更且淫有的一幼裁具展多骀谈的正至藝和同便發

够脂發必

在力展兩方訂

油認及造按

當體學說万能:

一面吸便了藝同汇的扁买帅口後退施或院追歡的內 员 有收约能運特其發口和導語,本力展肌语來一語

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的和文者力果瞬有心譎方仍顏色的,注額對動操 帮我的您,有恩很能理許面不和使問然用文追是阻:

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資源女童 冊話:于而中本 德國英運 究的龜搜兒

的他的識及

教

四.提出要求表

五、解釋或推設府

己的行爲。

物的持作者。

Lo

五、六年級冠軍旅港器平商會中學。 對文集薇導語班男女生合誦訊 中學四、

:男子組中一至中三國路時莉莉優勝者左至

* • (KEENE) 福安宮,冠軍甫敬倫:及雙正單字遡及羅興 女中學國學所奪得。作爲季軍曾子描、孔君直 *季軍選仁書院趙恆盤,另外穴位均矯聖保羅男 男子中一奕詩獨誦比賽,優勝者合影。在讲

1980

中學會考試題預習專欄

化學

明德出版社朱宏林提供資料

Chemistry (7)

(Reginald M.-Chu)

(Mill & Dale Press Ltd:

Question.10

(a) In the experiment as shown

below oxygen gas 19

·bubbled through: some concentrated aqueous armonia solution above which a hot platinum spiral is hanged from glass rod

glass

platinum

spiral

(v)

(vi

concentrated

raqueous ammoni a solution

Name:the substance

Immediately:formed. at the platinum. spiral...

Give an equation for the reaction at the platinum' spiral.

i) What would be.

observed near around the platinum spiral? Give an equation for its: formation.

What is the function of the platinum spiral?

The platinum spiral needs initial

Cheating only and

once the reaction has started, no more heating of, the

platinum spiral is

necessary.

Explain why is this

If a. Tew drops of litmus solution are. Cadded into the at tlie end the

e flask

experiment, what

would happen to the

Explain your answer briefly.

(b) In the experiment as slown

ifricil and passed over some

mdTallic oxide colourless Tiquid Yu)|

the products 6f, the react fon between amponia-aud" solid X.

liquid Y

a colourless.

water

syringe

agerying

heat

admonia.

vas

choat:

solid X.

porcelain

Igas Z

Name the substances

Y and Z if solid X is copper(II)oxide. vive' an equation for.

reaction.

Give a chemical test for the presence of Y..

(iii) Suggest a suitable

drying agent for drying ammonia gas. (iv) Would there be any

reaction if solid X i's

(1) zinc(IF)oxides (2) lead(TI)oxide If there is No reaction, say so, If there is reaction, name the product(s) and write an equation for the reaction.

Ia-the experiment below.a. mixture of potassium nitrate and concentrated sulphuric is gently heated and a pale- yellow liquid Lie collected in a round-bottome? flask. cooled under the tap water

brown

ume s

Vater

Lap

(c) Write an equation for the (c) krite an equation, tor the

formation of L.

reaction lead(II)nitrate,

(d) Name the substances which,

by its preseuce, imparts

K brown colour to fumes observed.

the

(e) Give an equation for the

formation of the brown Tumes.

(1) Liquid 1 is in fact a

colourless liquid, why does the liquid L obtained in the above experiment have a pale yellow colour? (g) Suggest a simple ways to remove the yellow colour of the liquid L.

(h) Why is it not desirable to

heat strongly the mixture in the apparatus X2

(1) What is the purpose of

cooling the receiver under the tap water?

(j) Why is it necessary. to use

an

11-glass apparatus ir

the above experiment? (k) Describe what would you

observe and explain, wit the help of balanced equations, in each of the following cases:

(4)

Liquid L is added to some copper turnings. When the reaction ceases, the reaction: mixture is filtered. The filtrate is then evaporated to dryness in an evaporating dish and the solid first obtained is then heated strongly until there is no further change on heating.

Amixture of sulphur. powder and liquid L is heated for some tine, vith some bromine as the catalyst. The reaction mixture filtered and to the filtrate is added

acidified "barium”. chloride: solution

Question: 12

In the experiment us shown below Lea3(FT)nitrate crystali are henteil in ag pyrex tes tube. A Linuid X and gas Y ore obtained:

lead(II) Nitrate

raceiver

Theat

freezinge

Palt-yellow Liquid L

(a) Name the apparatus marked

(b) Name the pale-

Fiquid L

mixture

quid X

(a) Nam the substance

(d) Khy, is it not desirable to

prepare the liquid X by

heating: some copper(II)nitrate

crystals?

(c) hy is it desirable to collect the gas Y over water??

(f) It ''s found that solid

Z is only sparingly sulible in dilute

sulphuric ueidor:lilute.

hydrochloric arid but very

soluble in dilute `nitric acid. Why is this s02

(g):A few drops

is dissolved in some distilled water.

(1) What will be the pĦ

of the resulting,

A be formed in

solution? -- ~

(iii)hive an equation: for

the reaction on dissolving liquid L in water

(iv) Give the oxidation

number of nitrogen in the substances nbtained in (ii)

(h) What will be obtained on dissolving some liquid L into some dilute sodium hydroxide solution?

Give an equation for the reaction.A PAG

What will be obtained on heating some of solid Z with powdered charcoalz. Give an equation for the reaction.

(3):11:560cm?of gus Y.

measured at s.t.p., are

obtained in the above experimenty what is the "mass. nf lead (JT)nitrate

that has reacted?

(k) In general, the nitrates

care thermaly unstable:

and will decompose readily on, heating. Namotive: product(s) and give on

equation for the reaction when the following nitrates are heated

(i)

potassium nitrate crystals

zine(II)nitrate crystals,

1) silver nitrate

crystals

(iv)

ammonium nitr a crystals.

學能推理練習專欄 智慧社提供資料

選出下列每題的正確答案,並在它的下面畫 一模鰁

下列五個數中,

低不相同

2.下列函数中

AIB

B28

個是3起4的倍數 C.38

那麼X=

A0:4

B.1.6

D0.14

E0.04

假如M+26=42:

那麼M=?

A42+26 D42-26

<42

E 421-26

下面各

一個與0.28最接近

20

R]乙

TO#2

下列五個圖形中

自空白部份佔全国

S

把下圖的长方形分割成一太正方形及兩小正 方形,除下部份的面積是多少?

Q12cm

R18cm

·S.27cid.

T:81mi.

-

甲所有款項之多M元乙所有款項比两少 M+2元,問下列那一填是對的?

P中比丙多2元

R丙比里宽2元 丁平比两少2M+2元

0的比甲少2

S甲比丙少2M)

1位媽媽把一堆5角硬幣的20%平均分 人,若每人得4元,該雌硬幣原有

P30個

S.120個

Q40個

600M

1.若某戴波去5,再除以9,其商63

43X9+5 B3X 95C5X9+3

D3X5+9E9X5-

大小相同的兩條水管同時間旗,1小時可送 滿金池,若單間一條,多少時間可注滿半池? A 41-

B21-

C1

D30分

E15分

數字推理

ŒE · ØÐ ŒE QB 6C 65

(十四)

and

A solid residue Z is. left behind in the pyrex-tube after heating. Khat-in

數字推理練習十四

綜合練幣

00 65 OR

·WA OC