امتحان مستوى جامعات في اللغة الانجليزية 6
Part One: Reading Comprehension
Some of the earliest diamonds known came from India. In the eighteenth century they were found in Brazil, and in 1866, huge deposits were found near Kimberley in South Africa. Though evidence of extensive diamond deposits has recently been found in Siberia, the continent of Africa still produces nearly the entire world's supply of these stones.
The most valuable diamonds are large, individual crystalline carbon. Less perfect forms, known as 'boart' and 'carbonado', are clusters of tiny crystals. Until diamonds are cut and polished, they do not sparkle like those you see on a ring – they just look like small, blue-grey stones.
In a rather crude form, the cutting and polishing of precious stones was an art known to the Ancient Egyptians. In the middle Ages, it became widespread in north-west Europe. However, a revolutionary change in the methods of cutting and polishing was made in 1476 when Ludwig Van Berquen of Bruges in Belgium invented the use of a swiftly revolving wheel with its edge faced with fine diamond powder. The name 'boart' is given to this fine powder as well as the natural crystalline material already mentioned. It is also given to badly flawed or broken diamond crystals, which are useless as jewels, and which are broken into powder for many purposes, the so-called 'industrial' diamonds.
Diamond itself is the only material hard enough to cut and polish, though recently, high-intensity light beams called lasers have been developed. It may be necessary to split or cleave the large stones before they are cut and polished. Every diamond has a natural line of cleavage, along which it may be split by a sharp blow with a cutting edge.
1- Since 1866
- most of the world's diamonds have come from Siberia
- all of the world's diamonds have come from near Kimberley in South Africa
- diamonds have been discovered in Africa
- diamonds have been discovered in most parts of the world
2- According to the text, 'Carbonado' is the name given to
- only the very best of diamonds
- the lumps of pure carbon
- Spanish diamonds
- diamonds that are made up of many small crystals
3- What happens after a diamond has been cut and polished?
- It looks like a small blue pebble
- It looks very different from its original form
- It can no longer be used to put in a ring
- It changes its chemical composition
4- Industrial diamonds are used
- for a wide range of purposes
- mainly for dentists' drills
- for decoration in rings and watches
- principally in mass-produced jewelry
5- Which sentence is TRUE about industrial diamonds?
- They are made of a different substance from real diamonds
- They are not as sparkling or brilliant as 'boart'
- They are made up of diamond dust and broken crystals
- They are produced artificially in factories
Text B
A fully cut 'brilliant' diamond has 58 facets, or faces, regularly arranged. For cutting or faceting, the stones are fixed into copper holders and held against a wheel, edged with a mixture of oil and fine diamond dust, which is revolved at about 2500 revolutions a minute. Amsterdam and Antwerp, in Holland and Belgium respectively, have been the center of the diamond cutting and polishing industry for over seven centuries.
The jewel value of brilliant diamonds depends greatly on their color, or 'water' as it is called. The usual colors of diamonds are white, yellow, brown, green, or blue-white; the blue-white brilliants are the stones of the 'finest water' and so command the highest prices. During their formation, some diamonds absorb metallic oxides from the surrounding rocks and take on their color. Thus black, red and even bright pink diamonds have occasionally been found.
The trade in diamonds is not only in the valuable gem stones but also in the industrial diamonds mentioned above. Zaire produces 70% of such stones. They are fixed into the rock drills used in mining and civil engineering, also for edging band saws for cutting stone. Diamond-faced tools are used for cutting and drilling glass and fine porcelain, and for dentists' drills. They are used as bearings in watches and other finely balanced instruments.
1- Why are diamonds held in copper holders during faceting?
- To facilitate accurate cutting
- To make them shine more brilliantly
- So that they can revolve more easily
- As a steel holder might damage the diamond
2- Why are stones with the finest water expensive?
- because they are fractioned
- because they are the most brilliant
- because they are white
- because they contain clean water
3- Diamonds are usually
- white, yellow, brown, green or blue-white
- all the same color
- either blue or white in color
- transparent
4- Complete the following phrase: Zaire produces
- 70% of all diamonds sold
- 70%.of industrial diamonds sold
- 70% of all precious stones sold
- 70% of the world's blue-white diamonds
5- What does the underlined pronoun “their” refer to?
- diamonds
- countries
- rocks
- prices
Part two: Structure
1- She asked me how big _______________.
- is your house
- my house was
- was my house
- is my house
2- Would you mind_______________ me the pencil?
- to pass
- pass
- passing
- that you should pass
3- How much ________________where you live?
- do houses cost
- does houses cost
- does cost houses
- do cost houses
4- _____________ come to my party next Saturday?
- Do you can
- Can you to
- Can you
- Do you
5- He was mowing the lawn when I ______________him.
- saw
- had seen
- was seeing
- have seen
6- What time ___________________to bed every day?
- do you go
- are you go
- do you going
- you are going
7- I live in Oxford now. I _________________ to France for a long time.
- don't been
- didn't come
- haven't been
- don't come
8- I'm sorry, I haven't done my report _______________ .
- now
- already
- until the present
- yet
9- My friend doesn't speak Chinese. I don't _________________.
- also
- neither
- either
- too
10- That's the house___________________.
- in the which Mr. Brown lives
- in which Mr. Brown lives
- Mr. Brown lives in it
- Mr. Brown lives
11- If_____________________________
- you come to my office, I'd pay you.
- you shall come to my office, I'll pay you.
- you come to my office, I would to pay you.
- you come to my office, I'll pay you.
12- ______________________, what would you spend it on?
- When you had a lot of money
- If you had a lot of money
- If you would have a lot of money
- If you shall have a lot of money
13- I'm not _______________ grammar.
- interested to learn
- interested in learning
- interested to learning
- interest in learning
14- I wish ________________Russian.
- I could speak
- I would speak
- I can speak
- I'll be able to speak
15-What will you do when ___________________studying?
- you finish
- you're finishing
- you'll have finished
- you're going to finish
16- I don’t think there’s ____________point in apologizing now.
- little
- any
- very
- such
17- _______________does it take you to reach your school? Half an hour.
- How well
- How much
- How long
- How many
18- The bank ________________yesterday by the thief.
- is robbed
- was robbed
- rob
- will rob
19- Sami _____________be in his room. He left an hour ago.
- mustn’t
- can’t
- shouldn’t
- might not
20- “Did you paint the house by yourself?”
“ No, I ______________professionally.”
- have done it
- had done it
- had it done
- got done
Part Three:Vocabulary
1- The way an experiment is performed is called the________________.
- substance
- condition
- precaution
- procedure
2- The river has been contaminated. The underlined word contaminated means
- dried up
- diverted
- polluted
- obstructed
3- Only one little boy _____________ the accident. Everyone else was killed.
- absorbed
- survived
- consumed
- recognized
4- When a substance loses its water content, it becomes______________.
- shallow
- filtered
- dampened
- dehydrated
5- An architect________________ buildings.
- paints
- designs
- fights for
- repairs
6- We arrived at the airport ______________ for our flight.
- at times
- by the time
- just in time
- at a time
7- His face suddenly became as white as _________________.
- a cloud
- a sheet
- a rose
- snow
8- When you go to Los Angeles, don't forget to visit the ____________ Sunset Boulevard .
- exclusive
- legendry
- large
- intoxicating
9- If you are worried, you should talk to someone to get it off your___________.
- nose
- back
- chest
- hair
10-The _____________Sandra earns allows hers to live very comfortably.
- donations
- charge
- income
- debt
11- Thomas is always ___________about how many languages he can speak.
- complaining
- boasting
- confessing
- grumbling
12- ______________ is the opposite of bitter.
- sour
- spicy
- sweet
- salty
13- During the summer sales, many shops ____________their prices up to 60% percent.
- reduce
- lay
- lose
- miss
14- I have looked through the report, but I must admit, only______________.
- superficially
- thoroughly
- seriously
- carefully
15- As my secretary will be away for a couple of days, would you be kind enough to _______________ my correspondence.
- play back
- turn off
- take care of
- bring off
16- Taking _____________.in non-curriculum activities improves self-confidence.
- care of
- advice
- part
- a test
17- I've attended an inspiring _______on how to promote positive thinking techniques.
- layer
- league
- leak
- lecture
18- The wedding was postponed since the ____________had an urgent business to do.
- grace
- grab
- grade
- groom
19- Many married couples ____________their marriage anniversary annually.
- facilitate
- celebrate
- imitate
- estimate
20- Layan is a talented interior designer. She chose creative decorations for her room. The underlined word means:
- shows, films, or other performances that entertain people
- things used to make something more attractive
- an amount of substance covering a surface
- the way of life, especially the habits and traditions