Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Учебное пособие I приборы.rtf
Скачиваний:
86
Добавлен:
12.03.2015
Размер:
1.34 Mб
Скачать

6. Use the information to complete these conversations. Use one/ones.

the coat is black

the girl is tall with long hair

the hotel is opposite the station

the house has got a red door

the flowers are yellow

I took the photographs on the beach last week

the shoes are green

the pictures are on the wall

the books are on the top shelf

the man has got a moustache and glasses

1 A: We stayed at a hotel.

B: …Which one…?

A: …The one opposite the station…

2 A: Those shoes are nice.

B: ……………………..

A: ……………………..

3 A: That's a nice house.

B: …………………….

A: .................. with…...

4 A: I like that coat.

B: …………………….

A: …………………….

5 A: I like those pictures.

B: .................................

A:.................................

6 A: Are those your books?

B: .....................................................

A: ......................................................

7 A: Do you know that girl?

B: ......................................................

A: .......................................................

8 A: Those flowers are beautiful.

B: ......................................................

A: .......................................................

9 A: Who's that man?

B: ......................................................

A: .......................................................

10 A: Have you seen my photographs?

B: .......................................... .......?

A: ......................................................

7.Translate;

ex.: Can you compare the operation of a vacuum diode with that of a semiconductor diode? — Ты можешь сравнить действие вакуумного диода с действием полу­проводникового диода?

1. Can you compare the operation of a vacuum triode with that of a semiconductor triode? 2. Please, compare the emission of a heated cathode with that of a cold cathode. 3. Compare the weight of a vacuum diode with that of a semiconductor diode. 4. Compare the size of a vacuum triode with that of a semiconductor triode.

8.Translate:

Ex.: There are many ways of classifying materials. The one we shall speak about is based on the ability of a material to conduct electricity.— Существует много способов классификации материалов. Тот (способ), о котором мы будем говорить, основан на способности материала проводить электричество.

There are many types of robots; the ones, we are going to discuss today, are the robots of the 3rd generation. 2. The new computer is more powerful than the one put into service last year. 3. That semiconductor device is more efficient than the one under consideration.

9. Translate:

1. When capacitors are connected in series, the total capacitance is less than that of the smaller capacitor. 2. The amplification factor of a pentode is higher than that of a tetrode or a triode. 3. Germanium that is free from impurities is called intrinsic germanium. 4. The triode consists of a cathode that emits electrons; a plate or anode that collects the electrons; and a grid that controls the flow of electrons to the plate. 5. The transistor consists of an emitter that supplies electrons, a collector that collects the electrons, and a base that controls the flow of electrons.

Learn the vocabulary

bond [bond] связь

create [kri:'eit] создавать, creation создание

due to - благодаря (чему-то)

either - любой

either ... or – либо…либо; или…или

employ - использовать

equip [i'kwip] оборудовать equipment оборудование

lattice - решетка

quantity - количество

phenomenon – явление, phenomena(pl) - явления

pure - чистый, без примеси impure с примесью

impurity - примесь

relative – относительный, relatively - относительно

should - следует (совет) It should be added Следует добавить

similar - подобный

solid - твердое тело; твердый

table - таблица

force n - сила

represent - изображать, представлять

state - состояние

perform - выполнять

as follows - следующие, как следует ниже

compound – соединение

Read and translate

Classifying Materials

There are many ways of classifying materials. The one we shall use here is based on the ability of a material to conduct electricity. It is known that conduction takes place as a result of the motion of charged particles, usually electrons. The ability of any material to conduct electricity is directly proportional to the number of charged particles inside the material that can be set in motion. Materials (for example metals), that have relatively large numbers of free electrons, readily conduct electric current and are called conductors. Other materials having very few (or no) free electrons do not readily conduct electric current under normal conditions (условие) and are called insulators. It should be realized that the terms 'conductor' and 'insulator' are not absolute, that is2 some conductors do not conduct as well as other conductors, while some insulators do not insulate as well as other insulators.

Notes

1. it should be realized — следует учесть

2. that is — то есть