teens are very violent. Young people don't have good role models. Просклоняйте эти предложения в 4 временах:present simple/past

Transistor, resistor, capacitor, contractor, processor.

LARGE-SCALE INTEGRATION IN ELECTRONICS

The most advancing technology of the present industrial age is that of electronics. The introduction of the transistor in its day seemed a marvel of compactness compared with the glass vacuum tube. Now the size of electronic devices has been reduced by 10 every five years which has led to a great compression. When the term microelectronics first came into use, a chip of silicon a tenth of a square inch might hold 10 to 20 transistors, together with a few diodes, capacitors and resistors. Now such chips can contain thousands of separate electronic components.

Before the appearance of the transistor each type of component in an electronic circuit was made from one or more materials with the required electrical characteristics. For example, carbon was used for resistors, ceramics and a dielectric for capacitors, tungsten for emitters in vacuum tubes and so on. These components were then used like building blocks in creating a circuit with specified characteristics and responses. Circuits were combined into systems, such as a radio transmitter, a radio receiver, a radar set or a computer.

From the earliest days electronics has been a technology of complex interconnections. A small radar set can easily have as many interconnections as an oil refinery. To simplify a system design and reduce the number of interconnections engineers developed a series of standard circuit modules. Each module performed a specific function and was used as logical building block for creating the systems. The transistor could readily be assembled with resistors and capacitors of about the same size on a small plastic board. These modular circuit boards of the size of a playing card could then be plugged together as needed.

As transistor technology developed it was important to decrease the size of components and the length of interconnections. The physical limit of finding room for connections in an ever decreasing area was fast approaching. This limitation and the complexity of system design made the search for a new technology imperative.

The technology that resulted was microelectronics embodied in the integrated circuit. It made possible to produce (as a part of a single chip of silicon) transistors, diodes, resistors and capacitors joining them into a complete circuit.

The technology that produces such high-density electronic circuits is called large-scale integration, or LSI. Although the term has no precise definition, it is usually reserved for integrated circuits that comprise 100 or more “gates”, or individual circuit functions, with a density of 50,000 to 100,000 components per square inch. If the upper value could be achieved throughout a cubic inch of material, the density of electronic components would be about a fourth of the density of nerve cells in the human brain.

It now seems inevitable that microelectronic circuits, including LSI, will soon find their way into a variety of new applications which will have great impact on industry and everyday life.

1. Modern telephone systems meet the individual requirements.
2. We have been testing the equipment since the beginning of the year.
3. Investigations and researches are held in 63 research laboratories and scientific groups that are united in the MTUCI research center.
4. During recent years, ATM has continued to grow in the fiber-optic community under high
standards for performance set by International Telecommunications Union (ITU).
5. Developing countries are rapidly expanding the reach of their telephone systems in
underserved and unserved areas.
6. Each letter of the alphabet will have its own "miscellaneous" file.
7. Some years later the crystal detectors of the wireless era were replaced by radio tubes.
8. New thermal power station will be designed by our engineers.

следующих прилагательных.
Образец:
late — later — the latest

Раскройте скобки, употребляя глаголы в одном из следующих времен: Present Simple, Past Simple, Present Continuous или Past Continuous.
1. Where you (to be) yesterday? — I (to be) at home the whole day. — How strange. I (to ring) you up at two o'clock, but nobody (to answer). — Oh, I (to be) in the garden. I (to read) your book and (not to hear) the telephone.
2. What you (to do) at five o'clock yesterday? — I (to work) in the library. — I (to be) there, too, but I (not to see) you.
3. Nina (to celebrate) her birthday yesterday. Her room looked beautiful, there (to be) many flowers in it. When I (to come) in, somebody (to play) the piano, two or three pairs (to dance)
4 Listen! Somebody (to play) the pi-ano.
5. I (to like) music very much.
6. When I (to look) out of the window, it (to rain) heavily and people (to hun-y) along the streets.
7. What you (to do) at seven o'clock yesterday? — I(to have) supper.
8. When I (to come) home yesterday, I (to see) that all my family (to sit) round the table. Father (to read) a letter from my uncle, who (to live) in Kiev.
9. Yesterday I (to work) at my English from five till seven.
10. It (to rain) the whole day yesterday.
11. Where your sister (to be) now?— She (to be) in her room. She (to do) her homework.
12. He (to brush) his teeth at the moment. He (to clean) them thoroughly morning and night.
13. Don't disturb her while she (to sleep).
14. You (to talk) nonsense. You never (to talk) sense.
15. My mother (to sit) in the sun-light now and I (to set) the table.

(Выберете нужную форму глагола am/is/are/was/were. Предложения даны во временах Present Simple и Past Simple)Last year she….22, so she ….23 now. Today the weather … nice, but yesterday it… cold. I… hungry. Let us have dinner. I… hungry last night, so I bought a sandwich. Charlie Chaplin died in 1978. He ….. a famous film star. –Where … the children?

7. -I don’t know. They… in the garden ten minutes ago.

irresponsible, rude and looking only for cheap entertainment. These opinions are mainly based on a few recent incidents at the local discotheque.

Write a letter to the editor expressing your disapproval not only of the editorial policy of treating the topic, but also of the perception of young people.

rude and looking only for cheap entertainment. These opinions are mainly based on a few recent incidents in the local discotheque.
You're going to write a letter to the editor expressing your disapoproval not only with the editorial policy of treating the topic, but also with the perception of young people.