, Insert missing words: head channels, seeps out, gravity, a slightly, procedure, automatically, particles, lubrication, hard-to-reach, operation. Read and translate the article. Put down the new words.
The principle of _1_is as follows. When the engine starts, the oil pump _2_starts to work. It supplies oil through the filter, through the cylinder _3_to the most loaded units of the unit - to the bearings of the crankshaft and camshaft. The components receive _4_through slots at the crankshaft main bearing. The oil flows by _5_into the sump along the grooves in the cylinder head. This closes the circuit. In parallel with the lubrication of the key parts of the unit, oil _6_through the holes in the connecting rods and then splashes into the piston and the cylinder wall. Thanks to this_7_, heat is removed from the pistons, and the friction of the o-rings on the cylinder is also reduced. However, many motors have _8_different principle for lubricating small parts. In them, the crank mechanism breaks the drops into oil dust, which settles on _9_parts. In this way, they receive the necessary lubrication thanks to the microscopic _10_of lubricant formed.
1. G.S. was a British inventor and engineer. He is famous for building the first practical railway locomotive.
2. In 1829 he designed a locomotive known as the Rocket,, which could carry both loads and passengers at a greater speed then any constructed at that time.
I think this is his main invention.
3. R,S.was a British civil engineer.
4. He built several famous bridges including the Victoria bridge in Northumberland, the Britannia bridge in Wales, two bridges across the Nile in Damietta in Egypt and the Victoria bridge in Montreal ,Canada.
2. I suppose it would be better to learn it with a native speaker so learning it will be natural.
3. Personally I feel that it’s more convenient for me to learn a few words every day and then practise it in a grammar book or my teacher. 4. I have learnt a lot of them but I still try to learn them. It’s not easy but I’ll try to become fluent in English. 5. Pronunciation is very important of course. I had to train a lot to pronounce words correctly but now I feel confident when I speak English.
6. Well, they should not be afraid of speaking foreign language. Some people find it very difficult to speak because they make mistakes. They should try to talk and then they will become interested in a foreign language.