1. Guillermo Marconi had transmitted messages over many miles in Britain.
Messages had been transmitted over many miles in Britain.
2. They can use these lines to transmit voice frequencies.
These lines can be used to transmit voice frequencies.
3. The telephone followed the electric telegraph.
The electric telegraph was followed bv the telephone.
4. A company achieved a certain success.
A certain success was achieved by a company.
5. Female users purchase t he phones for personal security reasons.
The phones are purchased by female users for personal security reasons.
2. , . :
1. The manager returned before the typist _______________ all the letters (type).
2. As the equipment was getting old we _______________ to replace it (decide).
3. When you _______ your work yesterday (finish)?
4. We ______ t o an agreement on the terms of payment before you arrived (come).
5.1 shall cash the cheque as soon as the bank ___________________ open ((be).
3. .
:
1. She declared:"We will subscribe to a service called DIALCOM".
2. He said:"We send our files to a central computer".
3. He informed:"The files are stored there and our clients can get the file out when they want".
4. He said:"We should use an electronic mailbox".
5. She declared:"We use our existing equipment and we only have to pay for the subscription and the call charges".
4. :
Technological progress in postal transport
Postal administrations have been among the first to utilize new forms of transport. They have often applied considerable technical skill in maximizing the benefits to be derived from progress in this field, particularly in originating the traveling post-office concept and apparatus enabling express trains to pick up and discharge mails without slowing. They have also developed their own transport systems to combat traffic congestion in certain busy cities, such as the pneumatic tubes of Paris, New York, and other cities and the automatic underground railway, opened in 1927, that links London's chief mail centers to railway terminals.
The advent of aerospace and telecommunications technology in the mid-20th century gave rise to research aimed at adapting this technology to postal systems. Experiments have been conducted using ballistic missiles to transport mail, but this remains a novelty because of costs and the problems of reusability and accuracy. Advances in computer and message transmission technologies are, however, being utilized by postal administrations.
Since 1980 public facsimile services have been available in a number of advanced postal administrations in various parts of the world. The United States, Great Britain, France, and Sweden were among the first countries to introduce tele-impression services, whereby bulk correspondence in electronic form is transmitted to regional postal printing centres for enveloping and delivery.
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Since the 1950s there has been a marked intensification of research and development efforts to apply technology to the handling of mails, especially in countries faced by manpower problems and higher labour costs.
5. :
1. Postal administrations have been among the first to utilize new forms of transport, haven't they?
2. What have they often applied?
3. Why have they also developed their own transport systems?
4. What gave rise to research aimed at adapting this technology to postal systems?
5. Are advances in computer and message transmission technologies being utilized by postal administrations?
Variant 5
1. , :
1. Popov invented the radio in 1895.
The radio was invented by Popov in 1895.
2. You ought to translate this article at once.
This article ought to be translated at once.
3. They usually write b usiness letters on special forms.
Business letters are usually written o n special forms.
4. The typist has j ust typed t he letter.
The letter has just been typed by the typist.
5. Business people have used cellular phones to increase productivity.
Cellular phones have been used by business people to increase productivity.
2. , . :
1. We _______ to an agreement on the terms of payment before you arrived (come).
2. I shall cash the cheque as soon as the bank - _____________ open ((be).
3. The manager had left the office before I ________________ (arrive).
4. Kindly repeat what you just ___________ (say).
5. They ________ the date of the meeting (change).
3. .
:
1. said:"We finished installation last week".
2. She declared:"We start testing the machine on Monday next week".
3. She declared:"The operator training has already started".
4. He said: I`ll have a week before he starts training.
5. He informed:"I'll telex you as soon as I know for certain".
4. :
