Words for reference: inert, annual, artificial, ultra-low, nuclear, red, close, meteorite, complex, bitter, hot.
SRS No. 20
Task 1. Translate the text into Uzbek:
Aluminum is a modern construction material. Free aluminum is a silvery white, light, soft and malleable metal. It can be rolled into the thinnest aluminum sheets - foil. Aluminum foil is a harmless valuable and beautiful packaging material. Aluminum is a good conductor of heat. Aluminum wires have low resistivity. Aluminum powder is added to solid propellant. In the 19th century, aluminum objects cost as much as gold ones. Only at the beginning 20th century _ _ _ _ a cheap and simple electrolytic method for producing aluminum was discovered. A cheap raw material for the production of aluminum was found - bauxite.
At present, aluminum has serious rivals: titanium and magnesium.
Titanium and magnesium have higher mechanical and technological properties than aluminum. Titanium and magnesium are not only soft, malleable and light metals. They withstand ultra-high and ultra-low temperatures and have excellent anti-corrosion properties.
Task 2. Answer the questions: When were you born? Where did they come from? What qualities do you value in a person? When was the Navoi Free Industrial Economic Zone organized? What is your specialty?
Task 3. Make a cluster on the topic: "Russia"
Task 4. Translate these sentences into Russian:
Rossiada something yirik shahar boron? Navoiy Shahri yirik sanoat Shahri . Men Institute bitirib kimyogar bulaman . Menga Institute ukish yokadi wa men ukiyoghanimdan fakhrlanaman .
Task 5. Tell us about your city.
Task 6. Tell by heart the terms in the specialty.
Task 7. Make a crossword on the topic: "City of Navoi".
SRS No. 21
Task 1. Translate the text into Uzbek:
About eighty different metals are now known. All these metals are divided into two large groups: ferrous metals and non-ferrous metals. Steel, cast iron, ferroalloys are included in the group of ferrous metals.
In the earth's crust or on the very surface of the earth in different places there are deposits of ore, which is a combination of iron and oxygen. Restoring iron from ore, it is combined with carbon. Cast iron and steel are alloys of iron with carbon. There are the following types of cast iron: white, gray, malleable and high-strength. Steel is made from gray iron. The structure of steel changes during heat treatment.
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