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1.4 Staying their part of speech, translate the groups of words of the same root. Find different ones.

1). To compute, computer, computation, compatible, to computerize, computable; calculate, calculated, calculator, calcium, incalculable, calculating, calculability, calculable, incalculable, calculi, calculus; calculation. 2). Operate, operator, operable, operatic, operational, operative, operation. 3). accurate, accumulator, accuracy, accurately, inaccurate. 4). connect, connatural, connection, connective, connectionless, connectivity, connecting, connectability, connectable, connected, connexion, connector. 5). Number, numbered, numbering, numberless, innumerable, numberless, numeral, numinous, numerate, numeration, numerator, numerical, numerous.

1.5 Translate the sentences.

a) Mind: To operate + adv. mod. (как? обстоятельство, выраженное наречием) – работать. To operate + n. (кем? чем? существительное) – управлять. To operate - управлять; эксплуатировать; приводить в движение; применять; работать; действовать; оказывать, влияние (на); оперировать.

1. Computing machines operate automatically. 2. Control devices ope­rate the speed of trains. 3. The dispatcher operates the traffic. 4. This new machine operates with great accuracy. 5. Computers must operate quickly. 6. Railway operation is very important. 7. The first public railway was put into operation in 1838. 8. he operates an engine. 9. The company operates three factories. 10. We operate a simple system. 11. The brakes failed to operate. 12. The machine is operated by electricity.

1.6 Translate the sentences.

Mind: both + n. (существительное) – оба, обе; both ... and- и …, и … E.g.: We both speak Russian. We are both fair-haired. (to be + both)

1. Both codes can be used in this computer. 2. Automatic machines perform both arithmetic and logical operations. 3. This machine can solve both these problems. 4. Digital computers operate both quickly and accurately. 5. These computers are both modern. 6. Both diesel and electric locomotives are used on Russian railways. 7. These devices are both produced in the USA. 8. This software is intended for both education and playing. 9. Both of us are first-year students at the Railway Transport University. 10. You cannot have it both ways. 11. He is both tired and hungry. 12. I am fond of music, both ancient and modern. 13. My sister and I both helped him. 14. Your brother and you both look like your father. 15. We are both men of the world. 16. Both of us often talk to the lads and lasses.

1.7 Translate the sentences.

Mind: most + adj. (какой? прилагательное) – самый; most + n. (что? сущ.) – большинство; (the) most - большая часть, наибольшее количество, максимум, в основном, очень, весьма, в высшей степени.

1. Most computers use binary code. 2. The most powerful computers perform billions operations per second. 3. I was in bed most of the time. 4. Who scored the most? 5. You may have “B” at the most. 6. That is the most I can do. 7. You must make the most of your chances. 8. The play was boring for the most part. 9. most people’s favourite pastime nowadays is watching TV. 10. Most of us are good sportsmen. 11. Who has the most money? 12. What I most desire now is having good rest. 13. Let’s choose the most beautiful girl at the party! 14. This hardware is assembled most accurately. 15. All the daughters look much like their father. But Ann resembles her father the most. 16. the most urgently needed research is yours. 17. Bush’s tax plan gives the most to the rich. 18. Boeing 747 holds 400 passengers at most.

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