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All engineering materials are divided into metals and non-metals. Copper, cast iron, aluminium are examples of metals. Rubber, plastic and ceramics are examples of non-metals. Today different metals are widely used in machine-building industry.
We can divide all metals into ferrous and non-ferrous. Steel and cast iron are in the group of ferrous metals. They are alloys of iron with carbon, manganese, silicon and other components.
Non-ferrous metals are metals and alloys the main component of which is not iron but some other element such as aluminium, copper and others. Some -of the characteristics of non-ferrous metals are high electric and heat conductivity, high corrosion resistance, light weight and easiness of fabrication.
Say whether you agree or disagree with these statements.
All engineering materials are divided into metals and non-metals.
Steel, iron and copper are widely used for making tools.
One of the main characteristics of ferrous metals is high corrosion resistance.
Aluminium and copper are the main components of non-ferrous
metals.
Plastic is a heavy material.
Rubber is a very tough engineering material.
Fill in the gaps.
Ferrous metals are... of iron... carbon, manganese, silicon and
other components.
People use various metals... machine-building....
We can divide all engineering materials... metals and non-metals.
Steel and cast iron are... the group of... metals.
LESSON 7
Computer.
1. Learn the new words and put them into your vocabularies:
character -знак, символ, цифра, буква
data - дані
hardware - обладнання
software – комп’ютерні програми
instruction - команда
decision - вирішення
to evaluate - оцінювати
to respond - відповідати
processing – обробка даних
accept -приймати
to compare - порівнювати
to activate - активізувати
to boot - загружати
to store -зберігати
to install -встановлювати
to retrieve –виводити інформацію
to realize – розуміти, усвідомлювати
fil e - файл, папка
to run -запускати
to release - випускати
capability - здатність
to undergo - підлягати
to enhance – збільшувати, ускладнювати
click - клац
access -доступ
multitasking –багатозавданнєвий режим
corporate - корпоративний,
private - особистий
version - версія
network - мережа
compatible - сумісний
to accomplish -виконувати
to interact - взаємодіяти
to crash – давати збої
advancement - прогрес,
provider - провайдер
site - сторінка
format- формат
interface - інтерфейс
to browse - продивлятися
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