@AUX=7=*=*MU WAH KIU YAT PO
華僑教育
一九六六年度
*中試試題預習專欄
英文科 (+
}
*方問陶,
TEST 11
Time liumed 25 minutes.
1. Fill in the misaing words in this table.
Yesterday
Everyday
(a) The sun
(b) He tried to do it.
to
(c) She
down.
do it.
She lies down.
Now
英中 試題預習專欄
化學科
CHEMISTRY (11)
王錦釗
Q. A mixture consisting of approximately 3 parts of dry slaked. iine and one part of ammonium chloride is out into a round- bottomed flask and hested gently by means of a bunsen flame Double decomposition takes place and ammonia gas is given
off
=
Ca{{}2 + 2NH4C1 CaCl2 • 2#20 * NH3 † Ammonia is lighter than air and it is collected by upward delivery. The gas evolved contains moisture and it is dried by passing the wet gas up through a drying tower containing quicklime..
SLARED LIME. HALD AMMENIUM THURLAG
to
down.
The sun shines. The sun is shining.
He
He do it.
She
2. Fut one of the following words in each blank.
One day Ann said, "Mother. I want to go to the Gardens with Joan this afternoon.
shall, will. 0169
mast,
could, would.
ANT
CLAD COZIA
X24
I go?"
DR-u feel a JURED WITH
Ear mother eaid, "Yea, but rementer you be home by six o'clock."
When she got home.
monkeys, but I wish I
sed
Ann said, "We saw A bear and some
a lion."
"Perhaps when you are grown up you
said her mother.
"Perhaps I
aawered Ann.
Underline the right words whithin the bracketa. (a) The book is neither green (nor, or blue..
(b) They (both, together) went to the 200.
(c) We cross
the harbour in a (teamer, ferry).
(d) I want to (borrow, lend), a book from you.
(e) Tobacco is used for eating, drinking, smoking).
(a) The fact that ammonia is extremely soluble in water car
be demonstrated by the lountain experiment. A round- bottomed flask is fitted with a rubber bung containing
s long tube ending in aget and a short Lube which
protrudes a short distance into the flask The dry
flask 19 filled with ammonia and clips
the rubber tubing at the outer end of ver
flank is then inverted with the ends of the tipes
The
dipping into water coloured with red litmus A Fittle
water is introduced into the flask through the short
tube and the clip is again fitted on the rubber tubing"
Some ammonia dissolves in this water and
at its end.
港
Underline the right word in brackets which is the opposite
of the underlined word
(a) While I was idle at home, they were (lazy, buay,
clumsy) at work.
(b) Mary is pretty, but Esther is (clever, beautifu.
ugly).
(c) Father-le thin, but uncle 18 (fat, young, bold); (a) This sentence is right, that is (false, mistake,
wrong).
(e) Be le guilty, but she is (truthful, innocent,
faithful).
5. Change the following sentences from singular to plural.
(a) The cat catches the aouse
(a)
(b) I saw a monkey climbing the
(b)
(e) The dog followed a deer.
·(0)
(4) The man shot a bird.
(a)
tree.
(e) Thare is a child in this room.
(-)
*
6. Fill in sach blank with a word.
(a) Mr. Lee had lived in Hong Kong
years.
(b) My home was far
(c) They called
(d) The deak van ande
(●) She received the gift
my sonsol.
me last night.
two
wood.
thanks.
7. Put in punctuation marke where there is X.
X What is the good X X said John, { 00
said to himself X X of having a rabbit if ""{ 0
I have no hone for him X 'I can keep m hutch without a rabbit X but I cannot Keep a rabbit without a hutch X X John
a bar who_smild person X
0 ()
the pressure in the flask is reduced. When the clip
at the end of the long tube is removed, water rushe
un the tube and as it comes out of the jet, it produces a fountain effect The colour of the water changes
from red to blue, indicating that as ammonia dissolves. in water, it forms an alkaline solution:
Свар
Reuna dettomia
WATER
Bu meva b
CLIP REMETED
NATA COLOVRID wate
Rap Lamel
(b) Phat ammonia is a reducing agent can be shown by une
action of the gas on cupric oxide. bry ammonia gas in passed over cupric oxide contained in a porcelain boat which is placed in a hard-glass combustion Lube When the cupric oxide is heated, the ammonia reduces it to red metallic copper.
3 Cu 02 NH5 _•_3_Cu + 3 H2 ⋅ N2T
soon as he could
Suddenly he saw a puppy following in. It was white with brown patches. When be reached the door,
It was into the house with him. the puppy wanted to come
So Robert said to himself, "I must shivering with cold.
It le such a poor little ack Mummy to give it some food, creature."
Choose the correct answer from the brackets.
the space.
Write it in
(a) Robert went home (quickly) (slowly) (nolstly). (b) On that day it was (hot) (cold) (warm).
(c) The puppy mas (white) (brown) {white and brown). (a) The puppy was (hot and thirsty) (cold and hungry }
(happy and warm),
(e) Robert was aTu¿Cty) (good-for-nothing) (kindhear
boy.
Pay
>
日六十月三年六六
●商公年五十五手華中
HARD GLASI.
COMES TIBE
BLAZE
CHIDER Clip
HEAT
NTC
هيداه
MATER CHIL
(a) when dilute ammonia solution is added drop by drop with constant shaking, to solution of copper sulphate in a test-tube, a light blue precipitate of copper sulphate is formed.
2NH OH + CuSOL - Cu(OH)2
If more ammonia solution is added, the precipitate dis solvea to a beautiful deep-blue salution of a complex copper salt, cuprammonium sulphate, (Cu. NH3). SOL. H2O (b) When dilute ammonia solution is added to ferrous
sulphate solution in a test tube, a dirty green gelatinous] precipitate of ferrous hydroxide is formed.
Fe 50 * 2N1! OH = Fe{OA) 2 • (NHL)2 SOL When the contents of the tube are shaken up, some of this) precipitate sticks to the sides of the test-tube above the
Lxture, and is gradually oxidised by the oxygen of the air to brown ferric hydrqxide, Fe(OH)3.
(e) When dilute ammonia solution is added to ferric chloride'
solution in a teal-tube, & red-brown gelatinous precipitate of ferric hydroxide is formed.
FeCl3 + 2NH2 OH = Fe(OH)3 • 3NH C1
(d) When hydrogen sulohide is bubbled in a concentrated solution
of ammonia, ammonium sulphide is formed, The resulting solution contains ammonium hydrosulphide, NH2 ME as well
H2 S. 2NH OH = (NH2)2 5 2H2 0
H2S NH3
=
NH HS
.2 Ammonia made by the Haber Process is scrubbed with caustic soda
solution to remove carbon dioxioe, and is then freed from moisture by refrigeration. The dry ammonia is then mixed with purified air, and the mixtrue is passed over platinum geuze at a temperature of about 900°C. The ammonia is oxidised to nitrid
4 Not & H2O
oxide
4 NH 3
+
502
The nitric oxide is then rapidly cooled, and is mixed with more air
to form nitrogen dioxide
2 NO 02 2 NO2
The nitrogen dioxide, with still more air, is passed into hot) water, and a 60% solution of nitric acid is produced
2 H2O.4 NO2 4 HNO 3
Any unchanged oxides of nitrogen are absorbed in sodium carbon ale solution and sodium nitrate and sodium nitrite are formed
Ney C03 2 NO2
Na NO, Na NO2 * CO2▼
(b)
Cas Evolved
Oxygen
Nitrous oxide
Nitrogen peroxide
2
Name of nitrate Potassium nitrate,
Ammonium nitrate, Lead nitrate
When nitrogen peroxide is heated from its melting point in a closed vessel, it turns from a pale greenish yellow liquid to ma distinctly yellow liquid at 10°C.. On further heating, the liqufe becomes darken in colour, and at 21-5°C., the liquid boll and gives off a reddish-brown vapour. The colour of
Vapour becomes darkeṛ and darker until at 140PC., the väpour ležalmost black
Nz O- yellow (about 20°C)
2 NO2 dark brown (Between 140°C and
300°C) —
2 NO * 02
colourless
(above 500°C)
Between 21 3°C and 150°C, the gas consists of
mixture of both NO2 and N2 O molecules. When the mixture is heated above 500°C., the nitrogen dioxide molecules further dissociate into a colourless mixture of Nitric oxide and inno oxygen when the vapour is cooled, the same changes occur in the reverse order
Questions for Next Week.
1. State what you would observe and explain what happens when (a)
ammonium nitrate, and (b) lead nitrate are heated in test-tubes, and when a glowing splint in head at the month of each tube. 2. Write notes on the action of nitric acid on (a) sulphur, (b)
magnesium. (el copper and (d) ferrous sulphate, State briefly the conditions of reaction in each case. Describe the react ions that take place between nitrogen dioxide and (4) waler, and (b) moist sulphur dioxide.
(0)
(d) The old man had hurt somebody.
(a)
(e) The travellers lost their way in the forest.
(0)
12. Put a word, in sach blank... The word you #rave, mues de them
correct form of the word on the left.
(a) CARE
(b) COLOUR
Se did the sum
There are many
book.
and got it right.
pictures 13 the
(c) LITTLE (a) DAY
I have
than he has,
My father reads a
newspaper."
(•) SECOND
school.
his hands too X He made a rabbit-”
hatch X
ke-arrange `the following words tó make sentences. (a) not / dinner / they / had / finished
(a)
(b) similar / yours / to / picture / have / 1 /
(c) murder / guilty / he / found / wan / of (0)
(4) abildren / vera / vora / there / the / who /
frightened
(●) you / 1-/ obay / alunya / will
"the following "carefully"
One afternoon Robert nurried home from school.
It was cold and windy, and he wished to be by the fire as
(a)
-(h). (c)
(a) (e)
10. Fill in the correct tense of the given verba,"
(a) BREAK
(b) WASH
He
She
a window last month.
(c) FINISH
I
her hair twice a wèsk now sy honswork already,
(A) TALK
The headpaster, is busy. on the telephone,
Es
((•) OIVE
My father
me a bicycle for my
next birthday.
11, add not to waon of the following sentences. Write out
each sentence in the space and sake other changes which are necessary.
(a) She speaks in English.
(b) They had made up their mind.
(b)
(c) The police will question then very soon.
Next year I shall go to a
Answers to TEST 10
-2-(0)-4fps(b)}-but,-(0)-since, (d) befor...,(6) and..
2. (a) success, (b) troublesome, (a) thirsty, (d) stormy,
(*) darelsas.
.. 3. (b) 7, (c) 8, (d) 1, (e) 9, (f) 2.
4. (a) guemt, (b) right, (c) odd, (a) purchase, (e) something."
5. (a) at, (b) for, (c) for, (d) at, (e) at
6. (a) He is going to London next week, (b) Mr. Chan is our new teacher.
(c) Thursday is the fifth day of the week,
(a) Have they ever done anything wrong?
(a) He said to ae, "That are you doing?"en me
7. (a) feels, (b) will come, (c) say, (d) lose, (e) måde,
8. (a) sweet, (b) tayn, (o) life, (á) nice, (e) reá,
9. (a) Is the dog running up the street?
(b) Did the baby cry loudly isat night?,
(c) Does he come here by burl?
(d) Has the postman come to this building? (●) Will her friend come back-soon?
(本刷逢星期
(A)
:Page 16