2) black clouds
3) long holiday
4) hot water
5) fresh air
6) sharp knife
7) dangerous job
1. Steel - its alloy and the most important metal in industry is iron.
2. Steel is strong and stiff.
3. Steel corrodes easily through rusting.
4. Stainless, steels of low carbon content, medium-carbon steels, high-carbon steels and silver steel. The used in the manufacture; used as structural steels; used in cutting tools, surgical instruments, razor blades and springs.
5. Manganese gives extra strength and toughness. Steel containing 4 per cent silicon is used for transformer cores or electromagnets because it has large grains acting like small magnets. The addition of chromium gives extra strength and corrosion resistance, so we can get rust-proof steels.
6. Of mild steel can made sheet iron, wire, and pipes. Of medium-carbon steel can made structural steels.
Of high-carbon steels made cutting tools, surgical instruments, razor blades and springs.
7. Both mild and medium-carbon steels are suitable for forging and welding.
8. The addition of chromium gives extra strength and corrosion resistance, so we can get rust-proof steels.
9. Heating in the presence of carbon or nitrogen-rich materials is used to form a hard surface on steel.
10. High-speed steels alloyed with contain chromium and tungsten plus smaller amounts of vanadium, molybdenum and other metals.
1. Кто живет в реке? 2.что Лягушкам не очень нравится? 3. Что нравится делать зимой уткам?Почему? 4. Почему утки берут Лягушку с ними ? 5. что птицы сказали Лягушке? 6. Что же дети видят в небе? 7. чТо, что за время года в тексте? Нравится ли вам этот сезон? Почему? Почему бы и нет? 1.frogs live in the river. 2.fogs don't really like when caught with children 3fly away to the South , because the cold. 4.because the frog was smart and ducks just no way it turned out.5bird said to the frog , the frog across the sky don't fly6.See it flying frog she holds twig mouth 7.time of year late autumn. <span>no , because damp , cold and dirty))</span>
In my opinion, a good house is located In a town. Such a house is situated near school, shops and has all modern conveniences, like gas, electricity, running water and cosy rooms for everyone. In additional, a good house gas modern furniture and beautiful decoration.
