Termez state university “Interfaculties English chair”

VARIANT № 23


1. Read and translate the text on specialty in written form:


HYDROGEN.

Symbol H. Atomic Weight 1.008. Density 1.

Cavendish in 1766 first ascertained the true nature of this gas, to which he gave the name of inflammable air.
It is the first element of the Periodic Table. Its principal properties are lightness and inflammability. Hydrogen is the lightest substance known. It is fourteen and a half times lighter than air and sixteen times lighter then oxygen. Under normal conditions hydrogen is a colourless, odourless, invisible gas. It doesn't support combustion in the ordinary manner like air. Hydrogen burning in the air forms water in a combination with oxygen.
Occurrence. Hydrogen occurs in a state of combination in nature, though it sometimes exists in the free state mixed with other gases. Hydrogen is the most abundant element in nature. This substance occurs on the earth, in the sun and stars. Its principal compound is water, H2O, of which it forms one ninth part by weight. As water hydrogen is everywhere. Hydrogen is a comprising part of vegetable and animal bodies. Most organic compounds such as sugar, starch, wax, fat etc. contain it as a constituent. Hydrogen is a part of all acids and hydrocarbons.
Preparation. The usual method of preparing hydrogen is by the action of dilute sulphuric or hydrochloric acid on metallic zinc.
2. Read and retell the text on specialty.


THE NATIONAL FLAG OF THE REPUBLIC OF UZBEKISTAN.

The flag of our country is a symbol of the sovereignty of the Republic. The na­tional flag of the Republic of Uzbekistan represents the country internationally when official delegations from Uzbekistan visit foreign countries, as well as at conferences, world exhibitions and sports competitions.

The national flag of the Republic of Uzbekistan is a right-angled coloured cloth consisting of three horizontal stripes: blue, white and green.
Blue is the symbol of the sky and water, which are the main sources of life. Mainly blue was the colour of the state flag of Temur. White is the traditional symbol of peace and good luck, as Uzbek people say "Oq yo'l". Green is the colour of nature and new life and good harvest. Two thin red stripes symbolise the power of life. There is a new moon which symbolises the newly inde­pendent republic. There are twelve stars which represent the 12 provinces in Uzbekistan.