Вариант 1
METALS
1. Найдите в правой колонке русские эквиваленты английских слов и словосочетаний:
1. quantity
2. alloy
3. carbon
4. substance
5. tough(ness)
6. hard(ness)
7. ductility
8. malleability
9. tension
10. compression
11. rupture
12. strength
13. braking
a. жесткий (жесткость)
b. углерод
c. растяжение
d. поломка
e. количество
f. ковкость
g. разрыв
h. прочность
i. вязкость
j. сплав
k. твердый (твердость)
l. сжатие
m. вещество
2. Переведите на русский язык встречающиеся в тексте интернациональные слова:
metal, industry, industrial, absolutely, laboratory, steel, elastic, mechanical, result, atom, atomic, structure, special, temperature.
3. Прочтите текст и выполните следующие за ним упражнения:
METALS
1. Mankind has used metals for centuries in gradually increasing
quantities but only now they are employed in really great quantities.
2. Today we know more than seventy metals, the majority of which are
used in industry.
3. Of all the metals iron is the most important one. Absolutely pure iron
is never prepared except for laboratory purposes. The irons and steels in
use today are really alloys of iron, carbon and other substances. They can
be made elastic, tough, hard, or comparatively soft.
4. Mechanical properties of metals are the result of their atomic
structure. They include hardness, ductility and malleability which are of
special importance in engineering.
5. Ductility is the capacity of a metal to be permanently deformed in
tension without breaking.
Malleability is the capacity of a metal to be permanently deformed by compression without rupture.
6. These properties are similar to each other but not the same. Most
metals increase these properties at higher temperatures.
7. The strength of a metal is the property of resistance to external loads
and stresses.
8. These mechanical properties are of great importance in industrial
purposes because all parts and units made of iron and steel must meet
up-to-date demands.
4. .Переведите текст на русский язык в письменной форме.
5. Найдите соответствующие ответы на вопросы и напишите их в той последовательности, в которой заданы вопросы:
Вопросы
1. What is the most important metal?
2. What mechanical properties of metals do you know?
3. What is strength?
4. What is ductility?
5. What is malleability?
Ответы
a. The capacity of a metal to be permanently deformed in tension without
breaking.
b. Iron.
c. The capacity of a metal to be deformed by compression without rupture.
d. The property of a metal to resist to external loads.
e. Hardness, ductility and malleability.
6. Закончите предложения, выбрав соответствующий вариант окончания:
1. The most important metal a) carbon
in use today is … b) iron
c) some other metal
2. Ductility is the capacity of a metal.... a) to be permanently deformed
3. Malleability is the capa¬city of a metal .... in tension without breaking;
4. The strength of a metal is the property .... b) to be permanently deformed
by compression without rupture;
c) to resist to external loads and stresses.
a)to be permanently deformed in tension
b)to be permanently deformed by compression without rupture;
c)to resist to external loads and stresses.
Андрей
РГУ им. Косыгина
Прекрасный исполнитель очень отзывчивый, и положительный. Спасибо вам Наталья
Татьяна
ФЭК
ВСе как всегда отлично!!!!! Очень ответственный исполнитель.Большое спасибо.
Марина
АмГУ
Спасибо большое за оперативную помощь!!!!! Успехов ВАМ, Дмитрий, в работе!
Любовь
АМТИ
За очень короткий срок и за очень приятную цену! Огромное спасибо за вашу работу ! Однозна...